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Tarsus Pharmaceuticals, Inc
(NASDAQ:TARS) 

TARS stock logo

Tarsus Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, focuses on the development and commercialization of novel therapeutic candidates for ophthalmic conditions. Its lead product candidate is TP-03, a novel therapeutic that is in Phase IIb/III for the treatment of blepharitis cau...

Founded: 2016
Full Time Employees: 18
CEO / Co-Founder: Bobak Azamian 
Sector: Healthcare
Industry: Biotechnology

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At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 
                          
      revenues:
                          
      product sales
    151,668,000 118,697,000 102,660,000 78,335,000 66,408,000 48,118,000 40,813,000 24,720,000 13,076,000 1,653,000             
      license fees and collaboration revenue
           2,894,000  218,000  2,500,000           
      total revenues
    151,668,000 118,697,000 102,660,000 78,335,000 66,408,000 48,118,000 40,813,000 27,614,000 13,076,000 1,871,000   10,000,000  15,277,000 539,000 338,000 1,240,000 22,017,000 33,432,000   
      yoy
    128.39% 146.68% 151.54% 183.68% 407.86% 2471.78%   30.76% NaN%   2858.58% NaN% -30.61% -98.39%       
      qoq
    27.78% 15.62% 31.05% 17.96% 38.01% 17.90% 47.80% 111.18% 598.88%    NaN% NaN% 2734.32% 59.47% -72.74% -94.37% -34.14%    
      operating expenses:
                          
      cost of sales
    10,927,000 8,309,000 6,237,000 5,211,000 4,926,000 3,242,000 3,004,000 1,654,000 1,216,000 377,000             
      research and development
    18,035,000 16,284,000 15,594,000 14,409,000 16,873,000 12,128,000 12,319,000 12,066,000 13,305,000 12,105,000 12,546,000 12,356,000 10,028,000 10,912,000 9,603,000 12,081,000 8,038,000 10,209,000 7,204,000 16,261,000 7,587,000 7,991,000 
      selling, general and administrative
    130,682,000 108,633,000 103,013,000 84,995,000 69,030,000 57,910,000 58,792,000 51,578,000 43,005,000 30,324,000             
      total operating expenses
    159,644,000 133,226,000 124,844,000 104,615,000 90,829,000 73,280,000 74,115,000 65,298,000 57,526,000 42,806,000 32,821,000 27,452,000 25,061,000 22,906,000 20,501,000 20,060,000 14,786,000 16,945,000 14,735,000 22,718,000 11,477,000 10,141,000 
      loss from operations before other income
    -7,976,000 -14,529,000 -22,184,000 -26,280,000 -24,037,000 -25,162,000  -37,684,000               
      other income:
                          
      interest income
    3,950,000 4,114,000 4,229,000 3,454,000 3,647,000 4,120,000 4,130,000 3,117,000 2,978,000 2,840,000 2,226,000 2,293,000 2,127,000 1,061,000 -247,000 -316,000 12,000 8,000 7,000 9,000 10,000 4,000 
      interest expense
    -2,214,000 -2,268,000 -2,240,000 -2,213,000 -2,312,000 -2,445,000 -2,109,000 -983,000 -989,000 -858,000 -815,000 -684,000 -692,000 -633,000         
      loss on debt extinguishment
          -1,944,000                
      other income
    -74,000 98,000 -145,000 -81,000 -27,000 67,000 -59,000 605,000 -13,000 -48,000 -47,000 6,000 -50,000 -7,000 106,000 37,000 -17,000 5,000 -39,000 -34,000   
      total other income
    1,662,000 1,944,000 1,844,000 1,160,000 1,308,000 1,742,000 12,000 1,953,000 2,548,000 1,787,000 1,397,000 1,533,000 1,462,000 390,000   -349,000 -333,000 -908,000 -25,000 10,000 4,000 
      net income
    -8,373,000 -12,585,000 -20,340,000 -25,120,000 -23,113,000 -23,420,000 -33,290,000 -35,731,000 -41,902,000 -39,148,000 -31,424,000 -23,419,000 -13,599,000 -22,511,000         
      yoy
    -63.77% -46.26% -38.90% -29.70% -44.84% -40.18% 5.94% 52.57% 208.13% 73.91%             
      qoq
    -33.47% -38.13% -19.03% 8.68% -1.31% -29.65% -6.83% -14.73% 7.03% 24.58% 34.18% 72.21% -39.59%          
      net income margin %
    -5.52% -10.60% -19.81% -32.07% -34.80% -48.67% -81.57% -129.39% -320.45% -2092.36% -Infinity% -Infinity% -135.99% NaN% 0% 0% 0% 0% 0% 0% NaN% NaN% 
      unrealized gain on marketable securities and cash equivalents
    92,000 250,000 -46,000 -94,000 -167,000 522,000 -113,000 -61,000 6,000 15,000 47,000 4,000           
      comprehensive loss
    -8,281,000 -12,335,000 -20,386,000 -25,214,000 -23,280,000 -22,898,000 -33,403,000 -35,792,000 -41,896,000 -39,133,000 -31,377,000 -23,415,000           
      net income per share
    -0.19 -0.3 -0.48 -0.64 -0.59 -0.61 -0.88 -1.01 -1.27 -1.28 -1.17 -0.88 -0.49 -0.84 -0.24 -0.98     1.41 -3.71 
      weighted-average shares outstanding, basic and diluted
    41,784,014 42,607,717 42,360,452 39,345,359 37,604,538 38,381,968 37,823,233 35,300,655 29,383,276 30,622,440   24,619,700          
      realized/unrealized loss on equity investments
        -147,750                  
      change in fair value of equity warrants issued by licensee
           -201,000 152,000 -36,000 18,000 -17,000 19,000 -18,000 -257,000        
      other comprehensive gain:
                          
      income from operations before other income
          -33,302,000                
      realized/unrealized gain on equity investments
          -6,000                
      other comprehensive loss:
                          
      unrealized loss on equity investments
           -585,000 -40,250 -111,000  -65,000 58,000 -13,000 -121,000        
      cost of license fees and collaboration revenue
                400,000  522,000 33,000 -24,000 65,000 737,000 1,297,000   
      loss from operations before other income and income taxes
            -24,677,000 -40,935,000 -32,821,000 -24,952,000         -11,477,000 -10,141,000 
      benefit from income taxes
                          
      general and administrative
              20,275,000 15,096,000 14,633,000 11,994,000 10,376,000 7,946,000 6,772,000 6,671,000 6,794,000 5,160,000 3,890,000 2,150,000 
      unrealized gain on equity investments
              15,000            
      provision for income taxes
                      -29,000 -313,000  -1,000 
      weighted-average shares outstanding, basic
              26,815,733 26,742,023  26,662,374 24,332,531 20,710,224       
      weighted-average shares outstanding, diluted
              26,815,733 26,742,023  26,662,374 24,332,531 20,710,224       
      license fees
                10,000,000  13,893,000   708,000 19,048,000 33,311,000   
      collaboration revenue
                  1,384,000 539,000 338,000 532,000 2,969,000 121,000   
      income from operations before other income and income taxes
                -11,912,750 -22,906,000 -5,224,000 -19,521,000 572,750 -15,705,000 7,282,000 10,714,000   
      benefit for income taxes
                 5,000  -1,000 -250 341,000     
      other comprehensive income:
                          
      unrealized loss on marketable securities and cash equivalents
                -64,000 -10,000         
      comprehensive income
                -12,125,500 -22,521,000         
      total other expense
                  -519,000 -716,000       
      net income and comprehensive income
                  -5,743,000 -20,238,000 256,000 -15,697,000 6,345,000 10,376,000   
      unrealized loss on equity securities
                   -192,000       
      change in fair value of equity warrants
                   -245,000       
      net (loss) per share, basic
                   -0.98       
      change in fair value of equity warrant rights
                    -305,500 -346,000 -876,000    
      net income per share
    -0.19 -0.3 -0.48 -0.64 -0.59 -0.61 -0.88 -1.01 -1.27 -1.28 -1.17 -0.88 -0.49 -0.84 -0.24 -0.98     1.41 -3.71 
      basic
                    0.013 -0.76 0.31 0.51   
      diluted
                    0.013 -0.76 0.29 0.47   
      weighted-average shares outstanding
                          
      basic
                     20,641,285 20,555,258 20,336,022   
      diluted
                     20,641,285 21,966,599 21,824,574   
      change in fair value of derivative liabilities
                          
      net loss and comprehensive loss
                        -11,467,000 -10,138,000 
      weighted-average common shares outstanding, basic and diluted
                         2,729,685 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 
                            
        assets
                            
        current assets:
                            
        cash and cash equivalents
      183,641,000 112,724,000 96,648,000 175,787,000 94,819,000 176,210,000 181,095,000 193,705,000 224,947,000 226,672,000 106,773,000 65,997,000 71,660,000 169,489,000 245,363,000 175,010,000 171,332,000 183,801,000 176,735,000 156,179,000 168,129,000 86,329,000 
        restricted cash
      560,000                   20,000 20,000 20,000 
        marketable securities
      233,627,000 289,113,000 284,495,000 232,129,000 196,557,000 140,742,000 142,485,000 104,819,000 2,495,000 20,213,000 71,455,000 135,222,000 145,366,000 57,083,000  291,000 483,000      
        accounts receivable
      85,057,000 72,620,000 58,334,000 62,426,000 46,760,000 29,159,000 29,529,000 29,885,000 16,621,000 5,362,000  2,500,000  17,000 17,000 17,000   20,000,000 25,000,000   
        inventory
      4,372,000 3,836,000 3,873,000 2,705,000 2,620,000 2,846,000 2,195,000 4,036,000 3,107,000 15,000             
        other receivables
      2,052,000 1,716,000 1,906,000 1,727,000 1,299,000 1,145,000 1,312,000 1,476,000 1,093,000 1,008,000 246,000 418,000 3,582,000 3,995,000 603,000 306,000 92,000 139,000 157,000 247,000 20,000 1,000 
        prepaid expenses
      13,473,000 21,695,000 29,173,000 5,999,000 14,650,000 7,015,000 5,972,000 6,803,000 7,868,000 6,007,000 5,002,000 4,509,000 4,767,000 3,494,000       2,486,000  
        total current assets
      522,782,000 501,704,000 474,429,000 480,773,000 356,705,000 357,117,000 362,588,000 340,724,000 256,131,000 259,277,000 183,476,000 208,646,000 225,375,000 234,078,000 250,283,000 178,755,000 175,952,000 187,088,000 200,904,000 191,451,000 170,655,000 89,072,000 
        restricted cash, non-current
      2,002,000 2,563,000 2,563,000 2,563,000 2,562,000                  
        inventory, non-current
      2,532,000 2,532,000 2,532,000 2,532,000 2,533,000 2,533,000 2,533,000                
        property and equipment
      11,665,000 5,746,000 3,182,000 2,787,000 2,314,000 2,393,000 2,241,000 1,338,000 1,468,000 1,614,000 1,541,000 1,193,000 957,000 951,000 963,000 915,000 755,000 519,000 481,000 589,000 548,000 604,000 
        intangible assets
      7,366,000 7,606,000 7,846,000 8,086,000 8,326,000 8,567,000 3,667,000 3,767,000 3,867,000 3,967,000             
        operating lease right-of-use assets
      10,080,000 10,233,000 229,000 393,000 552,000 1,802,000 1,969,000 2,132,000 1,880,000 2,011,000 2,137,000 540,000 575,000 696,000 813,000 926,000 1,074,000    688,000  
        long-term investments
      3,870,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000 3,000,000  631,000 210,000 322,000 306,000 371,000 157,000 169,000        
        other assets
      1,861,000 1,177,000 1,213,000 616,000 999,000 888,000 846,000 1,317,000 1,514,000 1,253,000 1,451,000 529,000 585,000 583,000 600,000 887,000 1,126,000 1,615,000 1,525,000 1,330,000 81,000 1,750,000 
        total assets
      562,158,000 534,561,000 494,994,000 500,750,000 376,991,000 376,300,000 376,844,000 349,278,000 265,491,000 268,332,000 188,927,000 211,214,000 227,863,000 236,465,000 252,828,000 181,483,000 178,907,000 190,412,000 203,450,000 193,954,000 171,972,000 92,185,000 
        liabilities and stockholders’ equity
                            
        current liabilities:
                            
        accounts payable
      16,387,000                      
        accrued payroll and benefits
      17,779,000 13,552,000 11,612,000 9,933,000 15,823,000 11,325,000 8,045,000 5,958,000 13,245,000 7,898,000 5,306,000 4,206,000 5,519,000 4,092,000 2,780,000 1,805,000 2,798,000 2,246,000 1,470,000 685,000 1,040,000 520,000 
        other accrued liabilities
      101,529,000                      
        total current liabilities
      135,695,000 117,050,000 90,253,000 86,308,000 80,612,000 65,868,000 51,571,000 42,528,000 36,936,000 23,249,000 14,765,000 13,255,000 15,429,000 14,273,000 11,718,000 12,610,000 11,478,000 10,365,000 10,455,000 10,118,000 5,387,000 6,144,000 
        long-term debt
      72,438,000 72,281,000 72,129,000 71,984,000 71,845,000 71,708,000                 
        other long-term liabilities
      10,599,000 10,148,000    1,240,000 1,449,000 1,606,000 1,748,000 1,711,000 1,826,000 40,000 100,000 209,000 343,000 496,000 699,000 905,000 524,000 604,000 605,000 711,000 
        total liabilities
      218,732,000 199,479,000 162,382,000 158,292,000 152,457,000 138,816,000 124,598,000 74,067,000 68,503,000 54,668,000 41,198,000 37,810,000 34,963,000 33,838,000 31,323,000 32,286,000 12,177,000 11,270,000 10,979,000 10,722,000 5,992,000 6,855,000 
        commitments and contingencies
                            
        stockholders’ equity:
                            
        preferred stock, 0.0001 par value...
                            
        common stock, 0.0001 par value...
      6,000 6,000 6,000 6,000 6,000 6,000 6,000 6,000 5,000 5,000 5,000 5,000 5,000 5,000 5,000 4,000 4,000 4,000 4,000 4,000 4,000 2,000 
        additional paid-in capital
      769,667,000 753,042,000 738,237,000 727,697,000 584,559,000 574,229,000 566,093,000 555,655,000 441,641,000 416,421,000 311,353,000 305,651,000 301,732,000 297,796,000 294,153,000 216,103,000 213,398,000 210,959,000 208,591,000 205,697,000 198,821,000 3,548,000 
        accumulated other comprehensive income
      381,000 289,000 39,000 85,000 179,000                  
        accumulated deficit
      -426,628,000 -418,255,000 -405,670,000 -385,330,000 -360,210,000 -337,097,000 -313,677,000 -280,387,000 -244,656,000 -202,754,000 -163,606,000 -132,182,000 -108,763,000 -95,164,000 -72,653,000 -66,910,000 -46,672,000 -31,821,000 -16,124,000 -22,469,000 -32,845,000 -21,379,000 
        total stockholders’ equity
      343,426,000 335,082,000 332,612,000 342,458,000 224,534,000 237,484,000 252,246,000 275,211,000 196,988,000 213,664,000 147,729,000 173,404,000 192,900,000 202,627,000 221,505,000 149,197,000 166,730,000 179,142,000 192,471,000 183,232,000 165,980,000  
        total liabilities and stockholders’ equity
      562,158,000 534,561,000 494,994,000 500,750,000 376,991,000 376,300,000 376,844,000 349,278,000 265,491,000 268,332,000 188,927,000 211,214,000 227,863,000 236,465,000 252,828,000 181,483,000 178,907,000 190,412,000     
        liabilities and stockholders' equity
                            
        accounts payable and other accrued liabilities
       103,498,000 78,641,000 76,375,000 64,789,000 54,543,000 43,526,000 36,570,000 23,691,000 15,351,000 9,459,000 9,049,000 9,910,000 10,181,000 8,938,000 10,805,000 8,680,000 8,119,000 8,985,000 9,433,000 4,347,000 5,624,000 
        accumulated other comprehensive gain
           346,000                 
        term loan
            71,578,000 29,933,000 29,819,000 29,708,000 24,607,000 24,515,000 19,434,000 19,356,000 19,262,000 19,180,000       
        accumulated other comprehensive loss
            -176,000 -63,000 -2,000 -8,000 -23,000 -70,000 -74,000 -10,000         
        prepaid expenses and other current assets
                    4,300,000 3,131,000 4,045,000 3,148,000 4,012,000 2,806,000  2,722,000 
        operating lease right-of-use asset
                       1,190,000 540,000 584,000  759,000 
        liabilities, preferred stock and stockholders’ equity
                            
        total liabilities, preferred stock and stockholders’ equity
                        203,450,000 193,954,000 171,972,000  
        contract asset
                         7,199,000   
        series a preferred stock, 0.0001 par value...
                           3,564,000 
        series b preferred stock, 0.0001 par value...
                           59,838,000 
        stockholders’ equity
                            
        liabilities, preferred stock and stockholders’ deficit
                            
        series c preferred stock, 0.0001 par value...
                           39,757,000 
        stockholders’ (deficit) equity:
                            
        total stockholders’ deficit
                           -17,829,000 
        total liabilities, preferred stock and stockholders’ deficit
                           92,185,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 
                             
          cash flows from operating activities:
                             
          net loss
        -8,373,000 -12,585,000 -20,340,000 -25,120,000 -23,113,000   -35,731,000 -41,902,000 -39,148,000 -31,424,000 -23,419,000         -11,467,000 
          adjustments to reconcile net loss to net cash from operating activities:
                             
          depreciation
        202,000 220,000 213,000 220,000 192,000 184,000 139,000 170,000 247,000             
          amortization of intangible assets
        241,000 240,000 240,000 240,000 240,000 100,000 100,000 100,000 100,000             
          amortization/accretion of debt-related costs
                             
          stock-based compensation
        14,314,000 12,243,000 8,233,000 6,930,000 7,403,000 7,415,000 7,481,000 5,519,000 5,482,000 5,250,000 5,192,000 3,906,000 3,671,000 3,583,000 3,532,000 2,674,000 2,179,000 2,119,000 2,794,000 1,363,000 438,000 
          loss on debt extinguishment
                           
          non-cash lease expense
        154,000 205,000 159,000 164,000 173,000 167,000 163,000 132,000 131,000 125,000 134,000 151,000 121,000 117,000 113,000 113,000 116,000     
          net amortization/accretion on marketable securities
               -290,000 -125,000 -487,000            
          realized/unrealized loss on equity investments
                           
          change in fair value of equity warrants issued by licensee
            201,000 -152,000 36,000 -18,000 17,000 -19,000 18,000        
          changes in operating assets and liabilities:
                             
          accounts receivable
        -12,437,000 -14,286,000 4,092,000 -15,666,000 -17,601,000 370,000 356,000 -13,264,000 -11,259,000   -2,500,000  -17,000   5,000,000 -25,000,000  
          inventory
        -536,000 37,000 -1,168,000 -84,000 227,000 -652,000 -692,000 -929,000 -3,092,000             
          other receivables
        -336,000 190,000 -179,000 -429,000 -154,000 166,000 165,000 -383,000 -84,000 -762,000 171,000 3,165,000 412,000 -3,392,000 -285,000 -225,000 46,000 18,000 90,000 -227,000 -18,000 
          prepaid expenses
        8,187,000 7,978,000 -23,174,000 8,725,000 -7,702,000 -1,149,000 767,000 1,065,000 -1,861,000 -793,000 -492,000 257,000 -1,272,000         
          other non-current assets
        -381,000 -373,000 102,000 125,000 -42,000 25,000 483,000 106,000 -110,000 -102,000 -544,000 38,000 -140,000 -89,000 14,000 497,000 -436,000 -1,071,000 -1,255,000 -48,000 
          accounts payable
                             
          accrued payroll and benefits
        4,228,000 1,940,000 1,678,000 -5,890,000 4,498,000 3,280,000 2,087,000 -7,287,000 5,347,000 2,592,000 1,100,000 -1,313,000 1,427,000 1,312,000 975,000 -993,000 552,000 776,000 785,000 -355,000 520,000 
          other accrued liabilities
                             
          other long-term liabilities
            -1,000 -232,000 189,000 33,000 -29,000 -8,000 7,000 -3,000 -28,000 -43,000 -35,000 43,000 -16,000 123,000  
          net cash from operating activities
        19,330,000 18,257,000 -29,387,000 -20,651,000 -22,182,000 -8,652,000 -14,404,000 -37,789,000  -32,362,000 -23,826,000 -21,970,000 -10,874,000 -18,611,000 -4,259,000 -15,286,000 -12,121,000 7,112,000 20,551,000 -11,794,000 -10,013,000 
          capital expenditures
        -6,358,000 -1,910,000 -1,001,000 -590,000 -72,000 -282,000 -1,039,000 -174,000  -375,000 -787,000 -340,000 -127,000 -96,000 -122,000 -161,000 -274,000 -121,000 -16,000 -175,000 50,000 
          free cash flows
        12,972,000 16,347,000 -30,388,000 -21,241,000 -22,254,000 -8,934,000 -15,443,000 -37,963,000  -32,737,000 -24,613,000 -22,310,000 -11,001,000 -18,707,000 -4,381,000 -15,447,000 -12,395,000 6,991,000 20,535,000 -11,969,000 -9,963,000 
          cash flows from investing activities:
                             
          proceeds from sales and maturities of marketable securities
                             
          purchases of marketable securities
        -35,580,000 -102,333,000 -129,703,000 -125,570,000 -89,967,000 -21,085,000 -47,026,000 -104,550,000 3,000 -28,667,000 -92,407,000         
          purchases of long-term investments
                           
          intangible asset additions
                            
          purchases of property and equipment
        -6,358,000 -1,910,000 -1,001,000 -590,000 -72,000 -282,000 -1,039,000 -174,000 -375,000 -787,000 -340,000 -127,000 -96,000 -122,000 -161,000 -274,000 -121,000 -16,000 -175,000 50,000 
          net cash from investing activities
        49,274,000 -4,743,000 -51,704,000 -34,942,000 -59,574,000 3,128,000 -40,525,000 -102,224,000 17,850,000 47,368,000 64,092,000 11,294,000          
          cash flows from financing activities:
                             
          proceeds from issuance of common stock, net of paid issuance costs
        -354,000 135,125,000 -43,000 -274,000 98,604,000              
          proceeds from issuance of pre-funded warrants, net of paid issuance costs
            9,365,000              
          proceeds from exercise of stock options
        1,076,000 2,562,000 1,205,000 1,437,000                  
          proceeds from sale of common stock under employee stock purchase plan
        1,236,000   659,000   520,000   240,000        
          proceeds from issuance of common stock under an at-the-market sales agreement, net of paid issuance costs
                             
          proceeds from long-term debt
                            
          payment of debt issuance costs
                      -815,000      
          payments for debt extinguishment
                           
          net cash from financing activities
        2,312,000 2,562,000 1,952,000 136,562,000 2,927,000 639,000 42,319,000 108,771,000 19,760,000 104,893,000 510,000 5,013,000 264,000 -136,000 74,734,000 19,125,000 -74,000 75,000 1,000 19,000 91,763,000 
          net increase in cash, cash equivalents and restricted cash
        70,916,000 16,076,000 -79,139,000 80,969,000             -12,469,000 7,066,000   81,800,000 
          cash, cash equivalents and restricted cash at beginning of period
        97,381,000                  
          cash, cash equivalents and restricted cash at end of period
        70,916,000 16,076,000 -79,139,000 178,350,000                  
          supplemental disclosures from noncash, investing and financing activities:
                             
          operating lease right-of-use asset obtained in exchange for operating lease liability
           384,000 1,730,000 116,000        
          operating lease modification
                             
          interest expense paid in cash
        2,058,000 2,116,000 2,094,000 2,074,000 2,174,000 4,152,000 468,000 868,000 846,000 732,000 709,000 593,000          
          additions of property and equipment included within accounts payable and other accrued liabilities
        32,000 1,155,000 305,000 39,000 41,000 55,000   102,000 11,000            
          offering costs included within accounts payable
                             
          amortization of debt-related costs
         152,000 146,000 139,000  129,000                
          net amortization/accretion of marketable securities
         -1,534,000 -1,709,000 -1,314,000  -1,144,000                
          realized loss on equity investments
                             
          unrealized loss from transactions denominated in a foreign currency
         -12,000              1,000      
          accounts payable and other accrued liabilities
         23,842,000 2,294,000 11,309,000 15,047,000 5,868,000 7,087,000 12,335,000 8,063,000 5,814,000 409,000 -1,046,000 -366,000 1,322,000 -2,104,000 1,969,000 357,000 -1,099,000 -441,000 5,063,000 215,000 
          proceeds from maturities of marketable securities
         99,500,000 79,000,000 91,218,000  24,495,000 10,540,000 2,500,000  51,740,000 64,879,000 40,301,000          
          payments of debt issuance costs
                             
          additions of intangible assets included within accounts payable and other accrued liabilities
                             
          offering costs included within accounts payable and other accrued liabilities
           354,000                  
          unrealized loss on equity investments
               585,000  111,000 -15,000 65,000          
          payments of deferred offering costs
                             
          proceeds from exercise of equity awards
             721,000 1,818,000 802,000  516,000 45,000 13,000          
          net increase in cash and cash equivalents
             -4,885,000   -1,725,000 119,899,000 40,776,000 -5,663,000 -97,829,000 -75,874,000        
          cash and cash equivalents — beginning of period
             224,947,000  71,660,000         
          cash and cash equivalents — end of period
             -4,885,000 -12,610,000 193,705,000  119,899,000 40,776,000 65,997,000  -75,874,000        
          supplemental disclosures noncash and other investing and financing activities:
                             
          offering costs included within accounts payable and accrued liabilities
             -121,000 -136,000 275,000              
          net income
                     -22,511,000 -5,743,000 -20,238,000  -15,697,000 6,345,000 10,376,000  
          adjustments to reconcile net income to net cash from operating activities:
                             
          unrealized gain from transactions denominated in a foreign currency
                  -17,000 16,000 2,000   2,000 4,000 27,000 -35,000  
          proceeds from term loan
                5,000,000 5,000,000 20,000,000      
          payment of term loan issuance costs
                           
          supplemental disclosures noncash investing and financing activities:
                             
          accretion of term loan-related costs
               114,000 111,000 101,000 92,000 81,000 78,000         
          net decrease in cash and cash equivalents
               -31,242,000              
          amortization of discount on available-for-sale debt securities
                   -1,484,000 -1,253,000         
          unrealized loss on equity investment
                    -58,000         
          net cash from by operating activities
                             
          proceeds from sales of marketable securities
                             
          proceeds from issuance of common stock upon follow-on public offering, net of paid issuance costs
                    -218,000        
          proceeds from exercise of vested stock options
                    24,000 82,000   8,000 75,000 1,000 19,000  
          payment of deferred offering costs
                    -15,000 -60,000      
          cash and cash equivalents — beginning of year
                             
          cash and cash equivalents — end of year
                             
          proceeds from issuance of common stock upon follow-on public offerings, net of paid issuance costs
                             
          deferred offering costs included within accounts payable and accrued liabilities
                             
          depreciation and amortization
                  182,000 104,000 98,000 94,000 92,000 41,000 40,000 83,000 125,000 64,000 40,000 
          deferred offering costs included within additional-paid in capital
                             
          loss on lease termination
                        2,000  
          loss on disposal of property and equipment
                        70,000  
          issuance of common stock upon in-license agreement milestone achievement
                             
          stock issued for in-license agreements included within research and development expense
                             
          expense of right-of-use asset upon lease termination
                            
          deferred offering costs included in accounts payable and accrued liabilities
                             
          cash from investing activities
                     -57,127,000 -122,000 -161,000 -274,000 -121,000 -16,000 -175,000 50,000 
          "operating lease right-of-use asset" obtained in exchange for operating lease liability
                             
          "interest expense" paid in cash
                     967,000 127,000      
          additions of "property and equipment, net" included within "accounts payable and other accrued liabilities"
                     -15,000 18,000 41,000      
          expensing of "operating lease right-of-use assets" upon lease termination
                             
          stock issued for in-license agreements included within "research and development" expense
                             
          amortization and accretion of term loan-related costs
                             
          prepaid expenses and other current assets
                      -1,180,000 926,000 -1,380,000 864,000 -1,206,000 -321,000 236,000 
          deferred offering costs included within "additional-paid in capital"
                             
          deferred offering costs included within "accounts payable and accrued liabilities"
                       55,000      
          amortization and accretion of long-term debt related costs
                       55,000      
          unrealized loss on equity securities
                       192,000      
          change in fair value of equity warrants
                       245,000      
          issuance of common stock pursuant to in-license agreement
                        5,494,000  
          contract asset
                           -7,199,000  
          net decrease in cash, cash equivalents and restricted cash
                       3,678,000    -11,950,000  
          cash, cash equivalents, and restricted cash — beginning of period
                       171,332,000      
          cash, cash equivalents, and restricted cash — end of period
                       175,010,000  7,066,000 20,536,000 156,199,000  
          reconciliation of cash, cash equivalents and restricted cash
                             
          cash and cash equivalents
                       175,010,000 -12,469,000 7,066,000 20,556,000 156,179,000 81,800,000 
          restricted cash
                           20,000 
          cash, cash equivalents and restricted cash
                       175,010,000 -12,469,000 7,066,000 20,536,000 156,199,000 81,800,000 
          stock issued for in-license agreements
                             
          proceeds from issuance of preferred stock, net of issuance costs
                             
          proceeds from issuance of common stock upon initial public offering, net of issuance costs
                             
          proceeds from stock option exercises prior to vesting
                             
          cash, cash equivalents, and restricted cash — beginning of year
                        168,149,000 
          cash, cash equivalents, and restricted cash — end of year
                             
          stock issued for license agreements
                             
          conversion of preferred stock into common stock upon initial public offering
                             
          additions of property and equipment included in accounts payable and other accrued liabilities
                             
          change in fair value of derivative assets
                         346,000    
          issuance costs for initial public offering
                             
          stock issued to licensor pursuant to execution of out-license agreement
                         5,494,000  
          series c preferred stock issuance costs in accounts payable and other accrued liabilities
                             
          amortization of operating lease right-of-use asset
                          44,000 43,000 56,000 
          proceeds from issuance of series b preferred stock, net of issuance costs
                            
          proceeds from exercise of stock options prior to vesting
                             
          additions of property and equipment in accounts payable and other accrued liabilities
                             
          derecognition of right-of-use asset upon lease termination
                          -38,000  
          impairment of operating lease right-of-use asset
                             
          change in fair value of derivative liabilities
                             
          stock issued for in-license agreement
                             
          non-cash related party interest expense
                             
          loss on extinguishment of convertible notes
                             
          proceeds from issuance of series c preferred stock, net of issuance costs
                            -244,000 
          proceeds from issuance of convertible notes, net of issuance costs
                             
          proceeds from early exercise of stock options
                            
          proceeds from issuance of common stock upon exercise of vested stock options
                             
          conversion of preferred stock to common stock upon initial public offering
                             
          settlement of derivative liabilities upon conversion of convertible notes
                             
          series b preferred stock issuance costs in accounts payable and other accrued liabilities
                             
          conversion of convertible notes to series b preferred stock
                             
          convertible notes issuance costs included in accounts payable and accrued liabilities