SERES THERAPEUTICS INC MCRB
$7.74
-2.5% 52w: $5.62 – $28.63
Latest 13F among current holders filed 1 month ago (May 15, 2026)
Price — last 12 months
research preview data5.6217.1228.63
Jun 20, 2025 Jul 2, 2026
Institutional holders
33
-4 QoQ
13F value
$20.5M
-45.2% QoQ
Smart-money holders
2
signal tier ≥ 2
New smart buyers
0
Q1 2026
Options barometer
0.7×
$958K calls / $1.3M puts
Institutional value by quarter
Number of holders
Who owns MCRB?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| Flagship Pioneering, LLC ★2 | Fundamental diversified | 1.2M | $10.3M | 0.9% | Held |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 294.1K | $2.6M | 0.0% | — |
| MARSHALL WACE, LLP | Quant stat arb | 139.5K | $1.2M | 0.0% | +16.1% |
| Vontobel Holding Ltd. | Diversified mechanical | 138.5K | $1.2M | 0.0% | +34.1% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Market maker | 105.3K | $934K | 0.0% | -41.5% |
| BlackRock, Inc. | Index provider | 102.0K | $905K | 0.0% | -1.5% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 74.8K | $664K | 0.0% | -13.1% |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 62.3K | $553K | 0.0% | +283.0% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 39.6K | $352K | 0.0% | — |
| STATE STREET CORP | Index provider | 33.9K | $301K | 0.0% | Held |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 31.6K | $281K | 0.0% | +0.8% |
| Lion Point Capital, LP ★3 | Fundamental concentrated | 31.6K | $280K | 1.7% | Held |
| MORGAN STANLEY | Bank broker | 21.7K | $192K | 0.0% | -13.6% |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 18.8K | $167K | 0.0% | -27.0% |
| NORTHERN TRUST CORP | Index provider | 14.8K | $131K | 0.0% | Held |
| Invesco Ltd. | Index provider | 14.5K | $129K | 0.0% | +1.3% |
| UBS Group AG | Bank broker | 7.0K | $62K | 0.0% | +66.4% |
| BARCLAYS PLC | Bank broker | 6.5K | $58K | 0.0% | -12.4% |
| SBI Securities Co., Ltd. | Diversified mechanical | 3.5K | $31K | 0.0% | Held |
| SIMPLEX TRADING, LLC | Market maker | 3.1K | $27K | 0.0% | +149.2% |
| Vanguard Global Advisers, LLC | Diversified mechanical | 2.0K | $18K | 0.0% | — |
| FMR LLC | Long only active | 1.8K | $16K | 0.0% | +0.7% |
| Rachor Investment Advisory Services, LLC | Wealth advisor | 1.5K | $13K | 0.0% | Held |
| GROUP ONE TRADING LLC | Market maker | 824 | $7K | 0.0% | New |
| Tower Research Capital LLC (TRC) | Market maker | 794 | $7K | 0.0% | New |
| BNP PARIBAS FINANCIAL MARKETS | Bank broker | 211 | $2K | 0.0% | -72.7% |
| Physician Wealth Advisors, Inc. | Wealth advisor | 142 | $1K | 0.0% | Held |
| ROYAL BANK OF CANADA | Bank broker | 107 | $1K | 0.0% | +1088.9% |
| WELLS FARGO & COMPANY/MN | Bank broker | 10 | $89 | 0.0% | -96.2% |
| Sound Income Strategies, LLC | Diversified mechanical | 8 | $71 | 0.0% | Held |
| OSAIC HOLDINGS, INC. | Wealth advisor | 8 | $70 | 0.0% | Held |
| Allworth Financial LP | Wealth advisor | 4 | $36 | 0.0% | Held |
| Arax Advisory Partners | Wealth advisor | 6 | $18 | 0.0% | +200.0% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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