Cormorant Asset Management, LP 13F Portfolio

CIK 1583977 Filing since Q1 2014 Q2 2026 filed Aug 14, 2026
Holdings as of Jun 30, 2026, from the 13F filed Aug 14, 2026.

Portfolio Snapshot

46 positions · Q2 2026

Cormorant Asset Management, LP reported 46 positions worth $1.94B for the quarter ended Jun 30, 2026, up 1.5% on the prior quarter. It opened 10 new positions, added to 3, trimmed 28 and exited 6. Its largest holding is Praxis Precision Medicines, Inc. at 11.1% of the portfolio.

Portfolio Value
$1.94B
+1.5% QoQ · +65.0% YoY
Positions
46
10 new · 6 sold out
Top 10 Concentration
59.7%
of portfolio value
Largest Position
PRAX 11.1%
Praxis Precision Medicines, Inc.
Net Buying
-$221.87M
$256.87M bought · $478.74M sold
Turnover
13.4%
of the portfolio traded
Top Sector
Healthcare
99.3% of value
Track Record
50
quarters on file since Q1 2014

Portfolio Value & Positions

Value Positions

Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.

Sector Allocation

2 sectors
99.29%
Healthcare
Healthcare99.29%
Financial Services0.713%

Quarterly Buying & Selling

Bought Sold

Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.

Position Changes

How many positions were opened, added to, trimmed or closed each quarter.

Sector Allocation Over Time

Share of reported value in each sector at every quarter end.

HealthcareFinancial ServicesOtherIndustrialsTechnology

Largest Buys

Q2 2026
Holding Change Change % Trade Value Weight
PBLS Parabilis Medicines, Inc. +4.62M – $126.33M 6.53%
CLYM Climb Bio, Inc. +2.11M – $27.46M 1.42%
SYRE Spyre Therapeutics, Inc. +225.0K – $19.98M 1.03%
DFTX Definium Therapeutics, Inc. +400.0K – $18.82M 0.972%
BHVN Biohaven Ltd. +850.0K +48.3% $12.65M 2.01%
ANL Adlai Nortye Group Ltd. +1.08M +37.3% $12.42M 2.36%
KLRA Kailera Therapeutics, Inc. +550.0K – $12.12M 0.626%
ELVN Enliven Therapeutics, Inc. +150.0K – $7.61M 0.393%
IBIO iBio, Inc. +3.57M – $6.25M 0.323%
ALT Altimmune, Inc. +1.25M – $3.80M 0.196%

Largest Sells

Q2 2026
Holding Change Change % Trade Value Weight
PRAX Praxis Precision Medicines, Inc. -245.5K -27.7% $82.19M 11.07%
MBX MBX Biosciences, Inc. -570.0K -50.9% $31.46M 1.57%
EWTX Edgewise Therapeutics, Inc. -750.0K -23.0% $30.47M 5.27%
MLTX MoonLake Immunotherapeutics -1.28M -28.5% $24.82M 3.23%
MAZE Maze Therapeutics, Inc. -750.0K -100.0% $22.39M Exited
BBIO BridgeBio Pharma, Inc. -300.0K -35.3% $22.34M 2.12%
OLMA Olema Pharmaceuticals, Inc. -1.75M -44.9% $21.89M 1.39%
DNTH Dianthus Therapeutics, Inc. -200.0K -21.1% $19.50M 3.78%
ALMS Alumis Inc. -663.6K -16.8% $18.67M 4.78%
EYPT EyePoint, Inc. -1.27M -15.3% $18.09M 5.17%

New Positions

Q2 2026
Holding Shares Trade Value Weight
PBLS Parabilis Medicines, Inc. +4.62M $126.33M 6.53%
CLYM Climb Bio, Inc. +2.11M $27.46M 1.42%
SYRE Spyre Therapeutics, Inc. +225.0K $19.98M 1.03%
DFTX Definium Therapeutics, Inc. +400.0K $18.82M 0.972%
KLRA Kailera Therapeutics, Inc. +550.0K $12.12M 0.626%
ELVN Enliven Therapeutics, Inc. +150.0K $7.61M 0.393%
IBIO iBio, Inc. +3.57M $6.25M 0.323%
ALT Altimmune, Inc. +1.25M $3.80M 0.196%
ODTX Odyssey Therapeutics, Inc. +175.0K $3.27M 0.169%
BOLD Boundless Bio, Inc. +1.00M $2.50M 0.129%

Closed Positions

Q2 2026
Holding Shares Sold Trade Value Prior Weight
MAZE Maze Therapeutics, Inc. -750.0K $22.39M 1.17%
ZURA Zura Bio Ltd -1.45M $8.63M 0.452%
AXSM Axsome Therapeutics, Inc. -50.0K $8.45M 0.443%
GLUE Monte Rosa Therapeutics, Inc. -400.0K $6.58M 0.345%
RLYB Rallybio Corp -400.0K $3.59M 0.188%
CNTX Context Therapeutics Inc. -529.6K $1.39M 0.073%
Holdings · Q2 2026

46 Positions

As ofJun 30, 2026
Value$1.94B
Top 1059.7%
Avg position$42.07M
# Activity
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Showing 1–15 of 46 positions 13F filings on SEC EDGAR

Tip. Select a row to see that position’s full history at Cormorant Asset Management.

About Cormorant Asset Management, LP’s 13F Portfolio

What are Cormorant Asset Management, LP’s largest holdings?

As of its Q2 2026 13F filing, Cormorant Asset Management, LP’s five largest positions were Praxis Precision Medicines, Inc. (PRAX) at 11.1%, BridgeBio Oncology Therapeutics, Inc. (BBOT) at 7.0%, Parabilis Medicines, Inc. (PBLS) at 6.5%, Rapport Therapeutics, Inc. (RAPP) at 5.7%, Erasca, Inc. (ERAS) at 5.7% of the reported portfolio.

How much is Cormorant Asset Management, LP’s portfolio worth?

Cormorant Asset Management, LP reported a 13F portfolio worth $1.94B across 46 positions for Q2 2026. That is up 1.5% from the previous quarter.

What did Cormorant Asset Management, LP buy in Q2 2026?

Its largest purchases by value were Parabilis Medicines, Inc. ($126.33M), Climb Bio, Inc. ($27.46M), Spyre Therapeutics, Inc. ($19.98M). It opened 10 new positions.

What did Cormorant Asset Management, LP sell in Q2 2026?

Its largest sales by value were Praxis Precision Medicines, Inc. ($82.19M), MBX Biosciences, Inc. ($31.46M), Edgewise Therapeutics, Inc. ($30.47M). It exited 6 positions entirely.

Where does this data come from?

From the Form 13F-HR reports Cormorant Asset Management, LP files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.

Similar-Sized Institutions

by reported 13F value

13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.