Companies / Larimar Therapeutics, Inc. / Activity
Activity — Larimar Therapeutics, Inc.
60 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Deerfield Management Company, L.P. 13F manager | Add | Common stock | $22.50M | +5.0M +16.34% | 35,606,974 34.28% of shares | medium |
| Q2 2026 as of | AIGH Capital Management LLC 13F manager | Exit | Common stock | $-7.62M | -2.0M -100.00% | 0 | medium |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | Common stock | $-7.11M | -1.6M -30.37% | 3,625,278 3.49% of shares | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $6.09M | +2.0M +54.23% | 5,678,035 5.47% of shares | medium |
| Q1 2026 as of | DAFNA Capital Management LLC 13F manager | Add | Common stock | $4.91M | +1.1M +116.06% | 2,029,164 1.95% of shares | low |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | New | Common stock | $4.20M | +933K | 933,464 0.90% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common stock | $1.99M | +443K +148.92% | 739,942 0.71% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $1.52M | +500K +54.82% | 1,411,804 1.36% of shares | low |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $1.42M | +315K +62.77% | 817,517 0.79% of shares | low |
| Q1 2026 as of | Adage Capital Partners Gp, L.L.C. 13F manager | New | Common stock | $1.35M | +300K | 300,000 0.29% of shares | low |
| Q1 2026 as of | Federated Hermes Inc 13F manager | Trim | Common stock | $-1.34M | -298K -82.91% | 61,350 0.06% of shares | low |
| Q1 2026 as of | Hudson Bay Capital Management LP 13F manager | New | Common stock | $1.32M | +292K | 292,250 0.28% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $811.9K | +180K +61.12% | 475,612 0.46% of shares | low |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | Common stock | $622.0K | +138K +31.60% | 575,624 0.55% of shares | low |
| Q4 2025 as of | Cantor Fitzgerald, L. P. 13F manager | Exit | Common stock | $-411.8K | -128K -100.00% | 0 | low |
| Q1 2026 as of | Bridgeway Capital Management, LLC 13F manager | Trim | Common stock | $-315.0K | -70K -62.94% | 41,216 0.04% of shares | low |
| Q3 2024 as of | Barclays PLC 13F manager | Add | Common stock | $299.9K | +46K +321.25% | 60,032 0.06% of shares | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | Exit | Common stock | $-219.6K | -58K -100.00% | 0 | low |
| Q3 2023 as of | Barclays PLC 13F manager | Trim | Common stock | $-194.4K | -49K -90.73% | 5,030 <0.01% of shares | low |
| Q2 2026 as of | Deutsche Bank AG 13F manager | Add | Common stock | $189.2K | +62K +180.38% | 96,423 0.09% of shares | low |
| Q2 2026 as of | WINTON GROUP Ltd 13F manager | New | Common stock | $159.8K | +52K | 52,400 0.05% of shares | low |
| Q1 2026 as of | CPPIB Crestone Peak Resources Canada Inc. 13F manager | Trim | Common stock | $-154.3K | -34K -36.49% | 59,700 0.06% of shares | low |
| Q2 2024 as of | Danske Bank A/S 13F manager | Exit | Common stock | $-149.3K | -20K -100.00% | 0 | low |
| Q1 2026 as of | Prudential Financial Inc 13F manager | New | Common stock | $147.6K | +33K | 32,793 0.03% of shares | low |
| Q1 2026 as of | Mariner, LLC 13F manager | New | Common stock | $142.4K | +32K | 31,645 0.03% of shares | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $137.7K | +30K +601.61% | 35,291 0.03% of shares | low |
| Q1 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-129.7K | -17K -48.42% | 18,204 0.02% of shares | low |
| Q1 2023 as of | Barclays PLC 13F manager | New | Common stock | $128.2K | +28K | 28,293 0.03% of shares | low |
| Q2 2026 as of | Persistent Asset Partners Ltd 13F manager | New | Common stock | $114.0K | +37K | 37,374 0.04% of shares | low |
| Q2 2025 as of | Barclays PLC 13F manager | Add | Common stock | $88.4K | +31K +56.40% | 84,860 0.08% of shares | low |
| Q2 2023 as of | Barclays PLC 13F manager | Add | Common stock | $81.2K | +26K +91.68% | 54,232 0.05% of shares | low |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | New | Common stock | $81.1K | +18K | 18,022 0.02% of shares | low |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $69.5K | +15K +1.41% | 1,108,761 1.07% of shares | low |
| Q1 2026 as of | Coldstream Capital Management Inc 13F manager | Exit | Common stock | $-62.2K | -16K -100.00% | 0 | low |
| Q1 2026 as of | Grantham, Mayo, Van Otterloo & Co. LLC 13F manager | New | Common stock | $58.8K | +13K | 13,065 0.01% of shares | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Add | Common stock | $47.0K | +12K +43.79% | 40,473 0.04% of shares | low |
| Q3 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-45.1K | -14K -16.46% | 70,893 0.07% of shares | low |
| Q4 2024 as of | Barclays PLC 13F manager | Add | Common stock | $40.2K | +10K +17.31% | 70,425 0.07% of shares | low |
| Q1 2026 as of | Bank of New York Mellon Corp/The 13F manager | Trim | Common stock | $-38.7K | -9K -7.42% | 107,331 0.10% of shares | low |
| Q1 2026 as of | Graham Capital Management, L.P. 13F manager | Trim | Common stock | $-35.2K | -8K -18.50% | 34,438 0.03% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-34.8K | -16K -22.95% | 54,259 0.05% of shares | low |
| Q1 2026 as of | Intech Investment Management LLC 13F manager | Trim | Common stock | $-29.0K | -6K -30.71% | 14,529 0.01% of shares | low |
| Q4 2025 as of | Barclays PLC 13F manager | Add | Common stock | $28.9K | +8K +10.69% | 78,470 0.08% of shares | low |
| Q2 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-28.7K | -4K -21.72% | 14,251 0.01% of shares | low |
| Q2 2026 as of | Pinnacle Wealth Planning Services, Inc. 13F manager | New | Common stock | $25.2K | +8K | 8,264 <0.01% of shares | low |
| Q1 2026 as of | Walleye Trading LLC 13F manager | Trim | Common stock | $-22.5K | -5K -20.00% | 20,000 0.02% of shares | low |
| Q1 2026 as of | Sterling Capital Management LLC 13F manager | Trim | Common stock | $-5.6K | -1K -44.22% | 1,563 <0.01% of shares | low |
| Q1 2026 as of | ProShare Advisors LLC 13F manager | Trim | Common stock | $-4.2K | -923 -7.31% | 11,700 0.01% of shares | low |
| Q1 2026 as of | Rhumbline Advisers 13F manager | Trim | Common stock | $-4.0K | -880 -1.38% | 62,685 0.06% of shares | low |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-2.9K | -744 -49.57% | 757 <0.01% of shares | low |