Seres Therapeutics, Inc. MCRB
1.96 USD +0.13 (+7.10%)
At closeNov 3, 2026, 4:02 PM EST
1.96 0.00 0.00%
After hours · Nov 3, 4:02 PM ET
1.85 Day range 1.97
1.77 52-week range 28.63
- YTD
- -86.83%
- 1 year
- -87.14%
Held by funds
9 US ETFs and mutual funds hold MCRB · largest positions
Ownership
Held by insiders 13.19%
Held by institutions 37.15%
Float held by institutions 42.79%
Institutions 89
Top institutional holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Flagship Pioneering Inc. | 13.54% | 23,117,045 | 22.31M | Sep 29, 2024 |
| FMR, LLC | 13.39% | 22,857,260 | 22.06M | Sep 29, 2024 |
| Vanguard Group Inc | 3.55% | 6,060,528 | 5.85M | Sep 29, 2024 |
| Blackrock Inc. | 1.03% | 1,762,157 | 1.70M | Sep 29, 2024 |
| Geode Capital Management, LLC | 0.81% | 1,388,639 | 1.34M | Sep 29, 2024 |
| Susquehanna International Group, LLP | 0.70% | 1,192,749 | 1.15M | Sep 29, 2024 |
Top mutual fund holders
| Holder | % held | Shares | Value | Reported |
|---|---|---|---|---|
| Fidelity Growth Company Fund | 4.08% | 6,962,982 | 6.72M | Oct 30, 2024 |
| Vanguard Total Stock Market Index Fund | 2.36% | 4,035,985 | 3.90M | Sep 29, 2024 |
| Fidelity Growth Company K6 Fund | 1.45% | 2,471,897 | 2.39M | Oct 30, 2024 |
| Fidelity Series Growth Company Fund | 1.07% | 1,832,900 | 1.77M | Oct 30, 2024 |
| Vanguard Extended Market Index Fund | 0.85% | 1,449,776 | 1.40M | Sep 29, 2024 |
| Vanguard Explorer Fund, Inc. | 0.72% | 1,222,006 | 1.18M | Jul 30, 2024 |
Insiders
| Insider | Relation | Latest transaction | Date | Shares held |
|---|---|---|---|---|
| ARKOWITZ DAVID A. | Chief Financial Officer | Sale | Feb 15, 2024 | 182,442 |
| CLOGHESSY PAULA | Officer | Sale | Oct 29, 2023 | 45,684 |
| DESROSIER THOMAS J J.D. | Officer | Sale | Nov 17, 2024 | 135,192 |
| EGE DAVID S. | Chief Technology Officer | Sale | Aug 15, 2024 | 77,575 |
| HENN MATTHEW R | Officer | Sale | Nov 17, 2024 | 77,770 |
| SHAFF ERIC D | Chief Executive Officer | Sale | Nov 17, 2024 | 170,389 |