SLDB Solid Biosciences Inc.
Solid Biosciences Inc. (SLDB) Institutional Ownership
What the institutions did with SLDB last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| GEODE CAPITAL MANAGEMENT, LLC | 1.9M | 38.7% |
| DIMENSIONAL FUND ADVISORS LP | 1.4M | 28.6% |
| Monashee Investment Management LLC | 410.0K | 8.3% |
| Bank of New York Mellon Corp | 240.0K | 4.9% |
| CITIGROUP INC | 145.5K | 2.9% |
| ALPS ADVISORS INC | 142.0K | 2.9% |
| Fisher Asset Management, LLC | 104.3K | 2.1% |
| Y-Intercept (Hong Kong) Ltd | 87.3K | 1.8% |
| Quantum Private Wealth, LLC | 78.5K | 1.6% |
| BARCLAYS PLC | 72.4K | 1.5% |
| DEUTSCHE BANK AG\ | 64.3K | 1.3% |
| Russell Investments Group, Ltd. | 63.9K | 1.3% |
| Creative Planning | 45.7K | 0.9% |
| LPL Financial LLC | 28.0K | 0.6% |
| PROFUND ADVISORS LLC | 27.2K | 0.6% |
| China Universal Asset Management Co., Ltd. | 19.6K | 0.4% |
| Lido Advisors, LLC | 16.0K | 0.3% |
| US BANCORP \DE\ | 15.1K | 0.3% |
| ProShare Advisors LLC | 13.2K | 0.3% |
| PRINCIPAL FINANCIAL GROUP INC | 11.9K | 0.2% |
| Mirae Asset Global Investments Co., Ltd. | 5.5K | 0.1% |
| NISA INVESTMENT ADVISORS, LLC | 5.4K | 0.1% |
| Farther Finance Advisors, LLC | 5.4K | 0.1% |
| Caitong International Asset Management Co., Ltd | 2.8K | 0.1% |
| GAMMA Investing LLC | 2.7K | 0.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.3M | 1.4M | +148.7K |
| Monashee Investment Management LLC | Reduced | 500.0K | 410.0K | -90.0K |
| ALPS ADVISORS INC | Increased | 99.9K | 142.0K | +42.1K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.9M | 1.9M | -29.0K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 109.9K | 87.3K | -22.6K |
| Russell Investments Group, Ltd. | Increased | 48.3K | 63.9K | +15.6K |
| LPL Financial LLC | Increased | 12.8K | 28.0K | +15.2K |
| DEUTSCHE BANK AG\ | Reduced | 77.5K | 64.3K | -13.3K |
| PRINCIPAL FINANCIAL GROUP INC | New | 0 | 11.9K | +11.9K |
| Creative Planning | Increased | 35.9K | 45.7K | +9.8K |
| PROFUND ADVISORS LLC | Reduced | 36.5K | 27.2K | -9.3K |
| SIMPLEX TRADING, LLC | Sold Out | 9.3K | 0 | -9.3K |
| BARCLAYS PLC | Increased | 65.0K | 72.4K | +7.4K |
| Quantum Private Wealth, LLC | Increased | 73.9K | 78.5K | +4.6K |
| China Universal Asset Management Co., Ltd. | Increased | 15.7K | 19.6K | +3.9K |
| Bank of New York Mellon Corp | Reduced | 243.2K | 240.0K | -3.1K |
| CITIGROUP INC | Reduced | 148.4K | 145.5K | -2.9K |
| US BANCORP \DE\ | Increased | 12.3K | 15.1K | +2.8K |
| Caitong International Asset Management Co., Ltd | Increased | 563 | 2.8K | +2.3K |
| GAMMA Investing LLC | Increased | 1.4K | 2.7K | +1.3K |
| Mirae Asset Global Investments Co., Ltd. | Increased | 4.4K | 5.5K | +1.1K |
| Sterling Capital Management LLC | Increased | 949 | 2.0K | +1.1K |
| Fisher Asset Management, LLC | Increased | 103.5K | 104.3K | +833 |
| Allworth Financial LP | New | 0 | 439 | +439 |
| ProShare Advisors LLC | Reduced | 13.5K | 13.2K | -332 |
| Parkside Financial Bank & Trust | Increased | 135 | 364 | +229 |
| Farther Finance Advisors, LLC | Reduced | 5.5K | 5.4K | -177 |
| GF FUND MANAGEMENT CO. LTD. | Increased | 1.9K | 2.1K | +172 |
| PNC Financial Services Group, Inc. | Reduced | 682 | 600 | -82 |
| Parallel Advisors, LLC | Increased | 125 | 197 | +72 |
| Stone House Investment Management, LLC | Sold Out | 41 | 0 | -41 |
| Lido Advisors, LLC | Increased | 16.0K | 16.0K | +13 |
| SBI Securities Co., Ltd. | Reduced | 857 | 848 | -9 |
| Clearstead Advisors, LLC | Sold Out | 6 | 0 | -6 |
| EverSource Wealth Advisors, LLC | Increased | 283 | 289 | +6 |
| Hughes Financial Services, LLC | New | 0 | 2 | +2 |
| Root Financial Partners, LLC | New | 0 | 1 | +1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.