Spero TherapeuticsSPRO
13F holders, Q1 2024 (March 31)54holders
2famous investors
$1.72avg. 13F price*
At the end of Q1 2024, 54 institutions reported holding Spero Therapeutics Inc. (SPRO) in their 13F filings. The largest holders were Anson Funds Management LP ($6.5M), Vanguard Group Inc. ($2.8M) and ADAR1 Capital Management, LLC ($1.6M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Spero Therapeutics Inc.
- CUSIP
- 84833T103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 11 | $1.2M |
| Exits | 7 | $710K |
Ownership 54 holders
| Anson Funds Management LP | 0.51% | Reduce -12.7% | 3,750,450 | $6.5M |
| Vanguard Group Inc. | 0.00% | Add +0.6% | 1,653,432 | $2.8M |
| ADAR1 Capital Management, LLC | 0.44% | Reduce -13.2% | 926,929 | $1.6M |
| Alphabet Inc. | 0.06% | No change | 889,979 | $1.5M |
| Murchinson Ltd. | 0.17% | Add +1.3% | 873,910 | $1.5M |
| Renaissance Technologies | 0.00% | Add +56.1% | 854,460 | $1.5M |
| Acadian Asset Management LLC | 0.00% | Add +121.8% | 762,598 | $1.3M |
| Atlas Venture Life Science Advisors, LLC | 0.10% | Reduce -40.0% | 607,613 | $1.0M |
| BlackRock Inc. | 0.00% | Reduce -0.8% | 476,896 | $820K |
| Geode Capital Management, LLC | 0.00% | Add +13.8% | 469,441 | $808K |
| Novo Holdings A/S | 0.06% | No change | 468,902 | $807K |
| AWM Investment Company, Inc. | 0.08% | No change | 333,400 | $573K |
| Shay Capital LLC | 0.16% | New | 306,967 | $528K |
| Man Group plc | 0.00% | New | 214,026 | $368K |
| Bridgeway Capital Management, LLC | 0.01% | Add +37.1% | 184,800 | $318K |
| Millennium Management | 0.00% | Reduce -0.7% | 147,872 | $254K |
| State Street Corp. | 0.00% | No change | 130,511 | $224K |
| DAFNA Capital Management LLC | 0.05% | No change | 125,000 | $215K |
| Northern Trust Corp. | 0.00% | Add +28.9% | 114,559 | $197K |
| Bank of Montreal | 0.00% | New | 79,500 | $140K |
| Squarepoint Ops LLC | 0.00% | Reduce -35.3% | 79,401 | $137K |
| Bailard, Inc. | 0.00% | New | 60,900 | $105K |
| DLK Investment Management, LLC | 0.02% | No change | 31,355 | $54K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 28,565 | $49K |
| Gsa Capital Partners LLP | 0.00% | New | 28,319 | $49K |
| Mackenzie Financial Corp. | 0.00% | Add +32.5% | 28,442 | $49K |
| Prudential Financial Inc. | 0.00% | Reduce -9.9% | 25,400 | $44K |
| Virtu Financial LLC | 0.00% | New | 18,180 | $31K |
| Three Seasons Wealth, LLC | 0.02% | No change | 15,000 | $27K |
| XTX Topco Ltd | 0.00% | Reduce -77.2% | 15,013 | $26K |
| Dimensional Fund Advisors LP | 0.00% | No change | 10,003 | $17K |
| Texas Yale Capital Corp. | 0.00% | No change | 10,000 | $17K |
| Morgan Stanley | 0.00% | Reduce -34.4% | 7,899 | $14K |
| Russell Investments Group, Ltd. | 0.00% | No change | 6,400 | $11K |
| UBS Group AG | 0.00% | Add +1641.0% | 5,728 | $10K |
| Bank of America Corp. | 0.00% | Reduce -9.7% | 5,192 | $9K |
| WR Wealth Planners, LLC | 0.00% | New | 2,600 | $4K |
| FMR LLC | 0.00% | Add +1164.0% | 2,389 | $4K |
| Lazard Asset Management LLC | 0.00% | New | 1,248 | $2K |
| IFP Advisors, Inc | 0.00% | New | 650 | $1K |
| Allworth Financial LP | 0.00% | No change | 600 | $1K |
| Wells Fargo & Company | 0.00% | Add +1.3% | 540 | $929 |
| Raleigh Capital Management Inc. | 0.00% | New | 500 | $860 |
| Rhumbline Advisers | 0.00% | No change | 458 | $787 |
| JPMorgan Chase & Co. | 0.00% | No change | 236 | $406 |
| Tower Research Capital LLC (TRC) | 0.00% | Add +21500.0% | 216 | $372 |
| US Bancorp \de | 0.00% | No change | 151 | $260 |
| CoreCap Advisors, LLC | 0.00% | New | 142 | $244 |
| NewEdge Advisors, LLC | 0.00% | No change | 100 | $172 |
| PFS Partners, LLC | 0.00% | No change | 50 | $86 |
| Osaic Holdings, Inc. | 0.00% | Reduce -51.5% | 47 | $81 |
| Federation des caisses Desjardins du Quebec | 0.00% | Reduce -95.9% | 30 | $52 |
| BNP Paribas Financial Markets | 0.00% | No change | 12 | $21 |
| Qube Research & Technologies Ltd | 0.00% | No change | 1 | $2 |
"% of holder's portfolio" is SPRO's weight in each manager's 13F, not the share of Spero Therapeutics Inc. the manager owns.