LRMR Larimar Therapeutics, Inc.
Larimar Therapeutics, Inc. (LRMR) Institutional Ownership
What the institutions did with LRMR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| DEERFIELD MANAGEMENT COMPANY, L.P. | 35.6M | 37.3% |
| Blue Owl Capital Holdings LP | 9.2M | 9.6% |
| BlackRock, Inc. | 5.7M | 5.9% |
| Defilade Capital Management, L.P. | 3.7M | 3.8% |
| Driehaus Capital Management LLC | 3.2M | 3.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | 3.1% |
| RTW INVESTMENTS, LP | 2.6M | 2.7% |
| AQR CAPITAL MANAGEMENT LLC | 2.4M | 2.5% |
| MARSHALL WACE, LLP | 2.0M | 2.1% |
| DAFNA Capital Management LLC | 2.0M | 2.1% |
| GOLDMAN SACHS GROUP INC | 1.8M | 1.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.7M | 1.8% |
| Qube Research & Technologies Ltd | 1.6M | 1.7% |
| CITADEL ADVISORS LLC | 1.5M | 1.5% |
| STATE STREET CORP | 1.4M | 1.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | 1.5% |
| Woodline Partners LP | 1.4M | 1.5% |
| MILLENNIUM MANAGEMENT LLC | 1.3M | 1.4% |
| DIMENSIONAL FUND ADVISORS LP | 961.1K | 1.0% |
| FMR LLC | 937.4K | 1.0% |
| SPHERA FUNDS MANAGEMENT LTD. | 926.0K | 1.0% |
| Nuveen, LLC | 895.3K | 0.9% |
| Alyeska Investment Group, L.P. | 617.2K | 0.6% |
| NORTHERN TRUST CORP | 550.3K | 0.6% |
| VANGUARD FIDUCIARY TRUST CO | 448.2K | 0.5% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Defilade Capital Management, L.P. | New | 0 | 3.7M | +3.7M |
| AIGH Capital Management LLC | Sold Out | 3.0M | 0 | -3.0M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 3.6M | 1.3M | -2.3M |
| Blue Owl Capital Holdings LP | Increased | 7.1M | 9.2M | +2.0M |
| BlackRock, Inc. | Increased | 3.8M | 5.7M | +1.9M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 817.5K | 2.4M | +1.6M |
| Deep Track Capital, LP | Sold Out | 1.5M | 0 | -1.5M |
| MARSHALL WACE, LLP | Increased | 933.5K | 2.0M | +1.1M |
| RTW INVESTMENTS, LP | Increased | 1.5M | 2.6M | +1.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 406.6K | 1.4M | +996.6K |
| CITADEL ADVISORS LLC | Increased | 519.1K | 1.5M | +937.7K |
| SPHERA FUNDS MANAGEMENT LTD. | New | 0 | 926.0K | +926.0K |
| Point72 Asset Management, L.P. | Reduced | 1.0M | 134.8K | -912.6K |
| Soleus Capital Management, L.P. | Reduced | 1.1M | 188.1K | -878.9K |
| FMR LLC | Increased | 63.6K | 937.4K | +873.8K |
| Qube Research & Technologies Ltd | Increased | 847.6K | 1.6M | +793.4K |
| D. E. Shaw & Co., Inc. | Sold Out | 575.6K | 0 | -575.6K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.1M | 1.7M | +570.2K |
| Gem Investment Advisors, LLC | Reduced | 854.2K | 319.5K | -534.7K |
| STATE STREET CORP | Increased | 911.3K | 1.4M | +500.5K |
| JANE STREET GROUP, LLC | Reduced | 554.0K | 73.7K | -480.3K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 739.9K | 297.4K | -442.5K |
| Caption Management, LLC | Reduced | 635.0K | 193.0K | -442.0K |
| Hennion & Walsh Asset Management, Inc. | New | 0 | 396.7K | +396.7K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 18.0K | 399.5K | +381.5K |
| MORGAN STANLEY | Reduced | 420.8K | 86.9K | -334.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold Out | 300.0K | 0 | -300.0K |
| Hudson Bay Capital Management LP | Reduced | 292.3K | 11.0K | -281.3K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 475.6K | 236.1K | -239.5K |
| Driehaus Capital Management LLC | Increased | 2.9M | 3.2M | +229.0K |
| Nuveen, LLC | Increased | 674.9K | 895.3K | +220.4K |
| ADAR1 Capital Management, LLC | Increased | 52.7K | 272.7K | +220.0K |
| GOLDMAN SACHS GROUP INC | Increased | 1.6M | 1.8M | +191.3K |
| NORTHERN TRUST CORP | Increased | 376.5K | 550.3K | +173.8K |
| Susquehanna Portfolio Strategies, LLC | New | 0 | 165.2K | +165.2K |
| Jump Financial, LLC | Reduced | 299.7K | 135.6K | -164.1K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 798.5K | 961.1K | +162.6K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 289.6K | 448.2K | +158.5K |
| WELLINGTON MANAGEMENT GROUP LLP | Sold Out | 136.5K | 0 | -136.5K |
| SEVEN GRAND MANAGERS, LLC | Sold Out | 125.0K | 0 | -125.0K |
| HRT FINANCIAL LP | Sold Out | 121.9K | 0 | -121.9K |
| Invesco Ltd. | Increased | 19.6K | 134.5K | +114.8K |
| UBS Group AG | Increased | 29.7K | 144.3K | +114.6K |
| Squarepoint Ops LLC | New | 0 | 113.5K | +113.5K |
| Man Group plc | New | 0 | 113.0K | +113.0K |
| STATE OF WISCONSIN INVESTMENT BOARD | Increased | 28.8K | 138.2K | +109.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.9M | 3.0M | +108.6K |
| PRUDENTIAL FINANCIAL INC | Increased | 32.8K | 128.4K | +95.6K |
| IEQ CAPITAL, LLC | Increased | 114.0K | 203.4K | +89.3K |
| CARY STREET PARTNERS FINANCIAL LLC | New | 0 | 85.0K | +85.0K |
| Mariner, LLC | Increased | 31.6K | 114.4K | +82.8K |
| Marex Group plc | Sold Out | 82.0K | 0 | -82.0K |
| Quantbot Technologies LP | Increased | 331 | 68.8K | +68.4K |
| ExodusPoint Capital Management, LP | Increased | 26.4K | 90.4K | +64.0K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 145.3K | 207.0K | +61.6K |
| SIMPLEX TRADING, LLC | New | 0 | 58.6K | +58.6K |
| AXQ CAPITAL, LP | Sold Out | 53.0K | 0 | -53.0K |
| WINTON GROUP Ltd | New | 0 | 52.4K | +52.4K |
| MERCER GLOBAL ADVISORS INC /ADV | Increased | 17.1K | 68.9K | +51.9K |
| Virtu Financial LLC | Sold Out | 51.8K | 0 | -51.8K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.