S
Spero Therapeutics, Inc. (SPRO)
NMS – Real Time Price. Currency in USD
2.26
+0.24 (11.88%)
At close: Jun 26, 2026, 4:00 PM EDT
2.29
+0.03 (1.14%)
After-hours: Jun 26, 2026, 7:57 PM EDT
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NMS – Real Time Price. Currency in USD
2.26
+0.24 (11.88%)
At close: Jun 26, 2026, 4:00 PM EDT
2.29
+0.03 (1.14%)
After-hours: Jun 26, 2026, 7:57 PM EDT
| Breakdown | |
|---|---|
| 22.52% | % of Shares Held by All Insider |
| 16.11% | % of Shares Held by Institutions |
| 20.79% | % of Float Held by Institutions |
| 57 | Number of Institutions Holding Shares |
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| GSK plc | 9.19M | 2026-03-31 | 15.87% | $25.46M |
| Pfizer Inc | 2.36M | 2026-03-31 | 4.08% | $6.54M |
| Vanguard Capital Management LLC | 1.80M | 2026-03-31 | 3.11% | $4.99M |
| Renaissance Technologies, LLC | 1.19M | 2026-03-31 | 2.05% | $3.29M |
| Alphabet Inc. | 889,979 | 2026-03-31 | 1.54% | $2.47M |
| Two Sigma Investments, LP | 885,631 | 2026-03-31 | 1.53% | $2.45M |
| Geode Capital Management, LLC | 519,922 | 2026-03-31 | 0.90% | $1.44M |
| Blackrock Inc. | 433,202 | 2026-03-31 | 0.75% | $1.20M |
| Anson Funds Management LP | 421,956 | 2026-03-31 | 0.73% | $1.17M |
| Citadel Advisors Llc | 376,458 | 2026-03-31 | 0.65% | $1.04M |
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 1.24M | 2026-03-31 | 2.14% | $3.43M |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 516,108 | 2026-03-31 | 0.89% | $1.43M |
| Fidelity Concord Street Trust-Fidelity Extended Market Index Fund | 224,070 | 2026-04-30 | 0.39% | $620,673.00 |
| Fidelity Concord Street Trust-Fidelity Total Market Index Fund | 107,797 | 2026-04-30 | 0.19% | $298,597.00 |
| Fidelity Concord Street Trust-Fidelity Series Total Market Index Fund | 67,356 | 2026-04-30 | 0.12% | $186,576.00 |
| Bridgeway Funds, Inc.-Ultra-Small Company Market Fund | 64,800 | 2026-03-31 | 0.11% | $179,495.00 |
| Bridgeway Funds, Inc.-Omni Small-Cap Value Fund | 50,000 | 2026-03-31 | 0.09% | $138,499.00 |
| VANGUARD VALLEY FORGE FUNDS-VANGUARD BALANCED INDEX FUND | 39,474 | 2025-09-30 | 0.07% | $85,658.00 |
| Fidelity Concord Street Trust-Fidelity Nasdaq Composite Index Fund | 36,745 | 2026-04-30 | 0.06% | $101,783.00 |
| Invesco Exch-Trd Fd. TRT II-Invesco NASDAQ Future Gen 200 ETF | 33,718 | 2026-04-30 | 0.06% | $93,398.00 |
| SCHWAB CAPITAL TRUST-Schwab Total Stock Market Index Fund | 28,565 | 2026-01-31 | 0.05% | $79,125.00 |
| VANGUARD Inst. INDEX Fd.S-Vanguard Inst. Total Stock Market Index Fd. | 22,820 | 2025-12-31 | 0.04% | $58,419.00 |