SLDB Institutional Ownership
Who owns Solid Biosciences Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 157 funds reported holding SLDB at Jun 30, 2026, together owning 106.8% of the company.
- ▲97 buying vs 61 selling
- ▲Held by funds +13.7 pts
- ▲Funds holding +14
- ▼Superinvestors: 1 added, 3 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 157 | 143 | +9.8% |
| In funds' top 10 | 3 | 4 | −25.0% |
| 13F shares | 115M | 99.9M | +14.7% |
| Held by funds | 106.8% | 93.2% | +13.7 pts |
| New positions | 41 | 27 | +51.9% |
| Increased | 56 | 51 | +9.8% |
| Reduced | 37 | 40 | −7.5% |
| Sold out | 24 | 14 | +71.4% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in SLDB
All superinvestors →
Who owns SLDB
share of fund held shares- Index and passive funds18.0%
- Active managers and hedge funds76.3%
- Banks and brokers5.5%
- Pensions, insurers and other0.1%
The top 10 holders own 62.6% of all SLDB shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
18 funds changed their position- Alps Advisors IncAdded+42K sh
- Y-Intercept (Hong Kong) LtdTrimmed−23K sh
- Principal Financial Group IncNew+12K sh
- Creative PlanningAdded+9,816 sh
- Profund Advisors LLCTrimmed−9,320 sh
🔒 Free account: see all 18.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | RA Capital Management, L.P. | 11.23% | 12M | $120M | +2.7M |
| 2 | Perceptive Advisors LLC | 11.10% | 11.9M | $119M | 0 |
| 3 | Bain Capital Life Sciences Investors, LLC | 9.15% | 9.8M | $98M | 0 |
| 4 | Siren, L.L.C. | 7.17% | 7.7M | $76.8M | 0 |
| 5 | BlackRock, Inc. | 6.47% | 6.9M | $69.3M | +2M |
| 6 | Fmr LLC | 6.41% | 6.9M | $68.7M | +3.3M |
| 7 | Armistice Capital, LLC | 3.99% | 4.3M | $42.7M | +1.1M |
| 8 | State Street Corp | 3.89% | 4.2M | $41.7M | +3M |
| 9 | Jupiter Topco LLC | 3.77% | 4M | $40.4M | – |
| 10 | Vanguard Capital Management LLC | 3.74% | 4M | $40.1M | +1.3M |
- Rtw Investments, LP+3.9M sh+$38.9M
- Fmr LLC+3.3M sh+$32.7M
- State Street Corp+3M sh+$30.5M
- RA Capital Management, L.P.+2.7M sh+$26.9M
- BlackRock, Inc.+2M sh+$19.7M
- Vanguard Capital Management LLC+1.3M sh+$13.3M
- Franklin Resources Inc+1.2M sh+$12.5M
- Armistice Capital, LLC+1.1M sh+$10.8M
- Vestal Point Capital, LP−2.8M sh−$28.4M
- Point72 Asset Management, L.P.−1.6M sh−$16M
- Monashee Investment Management LLC−920K sh−$9.2M
- Nantahala Capital Management, LLC−1.2M sh−$8.4M
- Ally Bridge Group (NY) LLC−511K sh−$5.1M
- Millennium Management LLC−364K sh−$2.6M
- Adage Capital Partners Gp, L.l.c.−250K sh−$2.5M
- Parkman Healthcare Partners LLC−309K sh−$2.2M
SLDB institutional ownership FAQ
Who owns the most SLDB stock?
In Q2 2026 13F filings the largest holder of SLDB was RA Capital Management, L.P., followed by Perceptive Advisors LLC and Bain Capital Life Sciences Investors, LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of SLDB is owned by institutions?
Funds that file 13F reports held 106.8% of SLDB's shares at Jun 30, 2026, compared with 93.2% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying SLDB?
In Q2 2026, 97 funds bought SLDB (41 of them new positions) and 61 sold (24 sold out completely). Among well known investors, 1 added and 3 cut. Our fund sentiment for SLDB is bullish.
What is SLDB's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this SLDB ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.