Spero Therapeutics, Inc.
SPRO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001701108
No open-market purchases or sales by Spero Therapeutics, Inc. insiders were filed in the last 90 days; 59 institutions reported holding it in 13F filings for Q2 2026, worth $47.5M in total; no superinvestor holds it.
Q3 2024 vs. Q2 2024
How the institutions holding Spero Therapeutics, Inc. changed between Q2 2024 and Q3 2024.
All holders in Q3 2024All holders in Q2 2024
| Measure | Q2 2024 | Of which not filed for Q3 2024 | Q3 2024 | Change |
|---|---|---|---|---|
| Holders | 48 | 1 | 46 | −1 |
| Shares | 13.9M | 483.4K | 12.3M | −1.05M (−7.8%) |
| Value | $18.0M | $628.4K | $16.5M | −$871.6K (−5.0%) |
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so the changes leave them out.
New holders (6)
Institutions that held Spero Therapeutics, Inc. at the end of Q3 2024 but not at the end of Q2 2024.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| BlackRock, Inc. | 484,820 | $649.7K | 0.00% |
| PFG Investments, LLC | 13,979 | $18.7K | 0.00% |
| National Bank of Canada | 10,000 | $13.4K | 0.00% |
| CIBC Private Wealth Group, LLC | 2,880 | $3.86K | 0.00% |
| Simplex Trading, LLC | 921 | $1.00K | 0.00% |
| Northwestern Mutual Wealth Management Co | 50 | $67 | 0.00% |
Sold out (7)
Institutions that held Spero Therapeutics, Inc. at the end of Q2 2024 and filed for Q3 2024 without it.
| Institution | Shares, Q2 2024 | Value, Q2 2024 |
|---|---|---|
| Murchinson Ltd. | 873,910 | $1.14M |
| Two Sigma Securities, LLC | 67,728 | $88.0K |
| Texas Yale Capital Corp. | 10,000 | $13.0K |
| Royal Bank of Canada | 1,959 | $3.00K |
| Allworth Financial LP | 600 | $840 |
| Rhumbline Advisers | 458 | $595 |
| Qube Research & Technologies Ltd | 1 | $1 |
Not filed for Q3 2024 yet (1)
Institutions that held Spero Therapeutics, Inc. at the end of Q2 2024 and haven't filed a 13F for Q3 2024. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q2 2024 | Value, Q2 2024 |
|---|---|---|
| BlackRock Inc. | 483,402 | $628.4K |