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 2023 vs. Q2 2023
How the institutions holding Spero Therapeutics, Inc. changed between Q2 2023 and Q3 2023.
All holders in Q3 2023All holders in Q2 2023
| Measure | Q2 2023 | Q3 2023 | Change |
|---|---|---|---|
| Holders | 56 | 54 | −2 |
| Shares | 14.4M | 14.2M | −176.8K (−1.2%) |
| Value | $20.8M | $17.2M | −$3.66M (−17.6%) |
New holders (5)
Institutions that held Spero Therapeutics, Inc. at the end of Q3 2023 but not at the end of Q2 2023.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| HRT Financial LP | 18,627 | $22.0K | 0.00% |
| ERn Financial, LLC | 15,766 | $19.1K | 0.00% |
| BNP Paribas Arbitrage, SA | 12 | $15 | 0.00% |
| Qube Research & Technologies Ltd | 1 | $1 | 0.00% |
| Royal Bank of Canada | 300 | $0 | 0.00% |
Sold out (7)
Institutions that held Spero Therapeutics, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.
| Institution | Shares, Q2 2023 | Value, Q2 2023 |
|---|---|---|
| Royce & Associates LP | 22,851 | $33.1K |
| Virtu Financial LLC | 22,195 | $32.0K |
| Citadel Advisors LLC | 14,956 | $21.7K |
| Federated Hermes, Inc. | 2,647 | $3.84K |
| Simplex Trading, LLC | 2,281 | $3.00K |
| Investors Research Corp | 50 | $73 |
| FMR LLC | 4 | $6 |