13F Filings History of Cormorant Asset Management, LP

Latest 13F report
Q4 2025 - 17 Feb 2026
Value $
$1,763,992,777
Notable people
Bihua Chen
Signature - Title
Neb Obradovic - CCO
Location
Boston, MA
Summary
This page shows a list of all the recent 13F filings made by Cormorant Asset Management, LP. Form 13F is required to be filed within 45 days of the end of a calendar quarter. Cormorant Asset Management, LP reported 32 stock holdings with total value $1,763,992,777 as of Q4 2025. Top holdings included PRAX, BBOT, ABVX, EYPT, and RAPP.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 32 $1,763,992,777 +$158,850,176 -$423,997,347 -$265,147,171 PRAX, BBOT, ABVX, EYPT, RAPP 13F-HR 17 Feb 2026, 15:00
Q3 2025 36 $1,449,259,159 +$245,102,267 -$329,747,223 -$84,644,956 BBOT, ABVX, EYPT, RAPP, BBIO 13F-HR 14 Nov 2025, 13:03
Q2 2025 42 $1,342,486,545 +$67,487,014 -$136,202,714 -$68,715,700 MLTX, EYPT, BBIO, PRAX, MRUS 13F-HR 14 Aug 2025, 15:36
Q1 2025 42 $1,320,779,265 +$97,067,604 -$172,937,613 -$75,870,009 MLTX, EWTX, BBIO, ACLX, PRAX 13F-HR 15 May 2025, 15:22
Q4 2024 48 $1,820,860,799 +$260,915,006 -$240,111,402 +$20,803,604 MLTX, PRAX, JANX, ACLX, EWTX 13F-HR 14 Feb 2025, 15:01
Q3 2024 45 $1,885,759,705 +$142,082,984 -$157,326,566 -$15,243,582 MLTX, PCVX, ACLX, LBPH, EWTX 13F-HR 14 Nov 2024, 15:11
Q2 2024 47 $1,719,391,869 +$351,015,509 -$590,590,808 -$239,575,299 MLTX, CRBP, ACLX, PCVX, LBPH 13F-HR 14 Aug 2024, 15:05
Q1 2024 56 $2,269,736,201 +$568,656,118 -$503,532,849 +$65,123,269 MLTX, EYPT, ACLX, ALPN, BBIO 13F-HR 15 May 2024, 15:22
Q4 2023 47 $2,088,803,226 +$533,536,505 -$613,037,468 -$79,500,963 MLTX, AMAM, EYPT, BBIO, ACLX 13F-HR 14 Feb 2024, 15:11
Q3 2023 49 $1,714,347,327 +$289,854,336 -$253,414,793 +$36,439,543 MLTX, BBIO, AMAM, ACLX, APLS 13F-HR 14 Nov 2023, 15:25
Q2 2023 61 $1,755,848,549 +$300,200,368 -$426,182,392 -$125,982,024 MLTX, AMAM, APLS, BMEA, BBIO 13F-HR 14 Aug 2023, 15:19
Q1 2023 72 $1,518,444,000 +$318,532,243 -$333,894,509 -$15,362,266 RXDX, MLTX, BMEA, APLS, AMAM 13F-HR 15 May 2023, 15:34
Q4 2022 72 $1,487,868,000 +$180,863,334 -$213,052,472 -$32,189,138 RXDX, APLS, ACLX, MLTX, RNA 13F-HR 14 Feb 2023, 15:17
Q3 2022 72 $1,421,730,000 +$267,756,231 -$365,324,703 -$97,568,472 RXDX, APLS, DSGN, ERAS, ACLX 13F-HR 14 Nov 2022, 15:23
Q2 2022 79 $1,289,141,000 +$253,118,894 -$183,372,452 +$69,746,442 TPTX, DSGN, ERAS, RXDX, APLS 13F-HR 15 Aug 2022, 15:08
Q1 2022 77 $1,302,462,000 +$229,910,615 -$125,983,429 +$103,927,186 TPTX, ERAS, DSGN, RXDX, GRNA 13F-HR 16 May 2022, 15:07
Q4 2021 78 $1,681,198,000 +$151,567,511 -$343,931,135 -$192,363,624 ERAS, TPTX, DSGN, RXDX, FMTX 13F-HR 14 Feb 2022, 15:19
Q3 2021 88 $2,461,043,000 +$464,695,135 -$347,712,525 +$116,982,610 ERAS, TPTX, AVIR, FMTX, RVMD 13F-HR 15 Nov 2021, 15:14
Q2 2021 100 $2,564,684,000 +$486,933,806 -$886,508,584 -$399,574,778 TPTX, AVIR, FMTX, BBIO, DSGN 13F-HR 16 Aug 2021, 15:13
Q1 2021 115 $3,472,944,000 +$727,828,164 -$418,702,335 +$309,125,829 AVIR, TPTX, DSGN, BBIO, FMTX 13F-HR 17 May 2021, 15:46
Q4 2020 99 $3,440,103,000 +$1,012,081,078 -$450,000,611 +$562,080,467 TPTX, AVIR, BBIO, FMTX, OLMA 13F-HR 16 Feb 2021, 15:21
Q3 2020 87 $2,273,248,000 +$328,939,815 -$448,990,409 -$120,050,594 TPTX, FMTX, RVMD, BBIO, CCXI 13F-HR 16 Nov 2020, 16:13
Q2 2020 77 $2,279,775,000 +$364,271,352 -$412,922,917 -$48,651,565 TPTX, FMTX, CCXI, PRNB, BBIO 13F-HR 14 Aug 2020, 15:17
Q1 2020 68 $1,755,344,000 +$315,671,285 -$284,878,604 +$30,792,681 TPTX, PRNB, BBIO, CCXI, XLRN 13F-HR 15 May 2020, 15:07
Q4 2019 61 $2,271,017,000 +$452,878,784 -$307,153,240 +$145,725,544 TPTX, RETA, MRTX, CCXI, PRNB 13F-HR 14 Feb 2020, 15:36
Q3 2019 68 $1,383,388,000 +$167,517,382 -$125,109,912 +$42,407,470 TPTX, MRTX, APLS, RETA, BBIO 13F-HR 14 Nov 2019, 15:10
Q2 2019 67 $1,580,760,000 +$458,730,808 -$243,554,788 +$215,176,020 TPTX, MRTX, RETA, APLS, BBIO 13F-HR 14 Aug 2019, 15:17
Q1 2019 63 $1,395,793,000 +$414,085,358 -$402,390,497 +$11,694,861 IFRX, MRTX, ASND, APLS, ANAB 13F-HR 15 May 2019, 15:31
Q4 2018 65 $1,101,664,000 +$159,161,303 -$162,730,622 -$3,569,319 MRTX, ANAB, TSRO, APLS, IFRX 13F-HR 14 Feb 2019, 15:35
Q3 2018 60 $1,394,397,000 +$170,326,435 -$189,828,221 -$19,501,786 ANAB, MRTX, NKTR, AVRO, APLS 13F-HR 14 Nov 2018, 15:15
Q2 2018 56 $1,244,508,000 +$275,254,849 -$107,558,768 +$167,696,081 APLS, MRTX, ANAB, NKTR, IFRX 13F-HR 14 Aug 2018, 15:11
Q1 2018 49 $1,154,525,000 +$250,295,718 -$120,933,016 +$129,362,702 NKTR, ANAB, APLS, MRTX, IFRX 13F-HR 15 May 2018, 15:54
Q4 2017 49 $862,911,000 +$421,126,419 -$202,951,645 +$218,174,774 ANAB, NKTR, APLS, BPMC, MYOK 13F-HR 14 Feb 2018, 15:39
Q3 2017 51 $566,356,000 +$110,584,371 -$217,179,650 -$106,595,279 MYOK, RXDX, OMER, ANAB, TBPH 13F-HR 14 Nov 2017, 15:17
Q2 2017 71 $602,354,000 +$112,295,094 -$156,414,902 -$44,119,808 PTLA, TBPH, BLUE, QTNT, OMER 13F-HR 14 Aug 2017, 15:15
Q1 2017 75 $688,685,000 +$62,438,743 -$154,131,139 -$91,692,396 TBPH, NVRO, PTI, GLPG, ANAB 13F-HR 15 May 2017, 15:23
Q4 2016 77 $741,783,000 +$99,836,013 -$135,955,174 -$36,119,161 PTI, TBPH, NVRO, ALDR, EGRX 13F-HR 14 Feb 2017, 15:22
Q3 2016 84 $906,836,000 +$178,755,829 -$149,619,442 +$29,136,387 ALDR, NVRO, TBPH, NERV, PTI 13F-HR 14 Nov 2016, 14:58
Q2 2016 84 $705,177,000 +$137,642,795 -$122,905,069 +$14,737,726 ALDR, NVRO, HRTX, TSRO, NKTR 13F-HR 15 Aug 2016, 16:12
Q1 2016 84 $663,828,000 +$141,591,686 -$56,034,007 +$85,557,679 ALDR, HRTX, SAGE, OMER, NKTR Restatement 17 May 2016, 16:50
Q4 2015 82 $835,862,000 +$138,744,837 -$44,107,537 +$94,637,300 ALKS, DYAX, HRTX, EGRX, NBIX 13F-HR 16 Feb 2016, 16:11
Q3 2015 87 $626,096,000 +$87,625,677 -$53,387,845 +$34,237,832 HRTX, ALKS, NBIX, DYAX, ARDX 13F-HR 16 Nov 2015, 16:08
Q2 2015 80 $752,151,000 +$156,555,009 -$169,356,194 -$12,801,185 ALKS, HRTX, RCPT, ALDR, DYAX 13F-HR 14 Aug 2015, 16:22
Q1 2015 71 $647,100,000 +$102,486,435 -$193,672,790 -$91,186,355 RCPT, ALKS, PBYI, EGRX, BMY 13F-HR 15 May 2015, 16:18
Q4 2014 70 $648,511,000 +$180,451,215 -$133,765,851 +$46,685,364 RCPT, PBYI, CELG, OVAS, ALKS 13F-HR 17 Feb 2015, 16:20
Q3 2014 65 $486,175,000 +$177,975,984 -$73,535,548 +$104,440,436 PBYI, RCPT, JAZZ, DYAX, KERX 13F-HR 14 Nov 2014, 11:21
Q2 2014 54 $377,374,000 +$139,107,808 -$180,918,214 -$41,810,406 RCPT, OMER, QCOR, KPTI, DYAX 13F-HR 14 Aug 2014, 11:21
Q1 2014 46 $434,881,000 +$201,660,856 -$125,875,806 +$75,785,050 MDVN, CBST, PBYI, BMRN, RCPT 13F-HR 15 May 2014, 11:20
Q4 2013 37 $344,573,000 $0 $0 $0 MDVN, CBST, KERX, DYAX, PBYI 13F-HR 14 Feb 2014, 10:50