SLDB Institutional Ownership & Shareholders
SOLID BIOSCIENCES INC (SLDB) is currently held by 156 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.10B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Ra Capital Management, L.P. is currently the largest disclosed institutional shareholder of SLDB tracked by InsiderSet, reporting ownership valued at approximately $120.24M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $72.22M, representing an estimated loss of -39.94% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 65% of the total disclosed SLDB value among the investors covered in this analysis. Major shareholders include Ra Capital Management, L.P., Perceptive Advisors Llc, Bain Capital Life Sciences Investors, Llc, and several other long-term asset managers with concentrated positions in SOLID BIOSCIENCES INC (SLDB).
This page ranks the largest institutional SLDB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
156
Total Reported Value
$1.10B
Largest Holder
Ra Capital Management, L.P.
Largest Position
$120.24M
Insider Transactions (90d)
3
Latest Filing Quarter
Q2 2026
New Institutional Positions
99
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 1.04% | 12,036,126 | $120,240,899 | $72,216,756 | -$48,024,143 | -39.94% | |
| Perceptive Advisors Llc | 1.85% | 11,906,646 | $118,947,393 | $71,439,876 | -$47,507,517 | -39.94% | |
| Bain Capital Life Sciences Investors, Llc | 5.83% | 9,808,819 | $97,990,102 | $58,852,914 | -$39,137,188 | -39.94% | |
| Siren, L.L.C. | 1.56% | 7,690,405 | $76,827,146 | $46,142,430 | -$30,684,716 | -39.94% | |
| Blackrock, Inc. | 0.00% | 6,934,248 | $69,273,136 | $41,605,488 | -$27,667,648 | -39.94% | |
| Fmr Llc | 0.00% | 6,875,957 | $68,690,808 | $41,255,742 | -$27,435,066 | -39.94% | |
| Armistice Capital, Llc | 1.18% | 4,278,000 | $42,737,220 | $25,668,000 | -$17,069,220 | -39.94% | |
| State Street Corp | 0.00% | 4,175,365 | $41,711,896 | $25,052,190 | -$16,659,706 | -39.94% | |
| Vanguard Capital Management Llc | 0.00% | 4,009,922 | $40,059,121 | $24,059,532 | -$15,999,589 | -39.94% | |
| Rtw Investments, Lp | 0.33% | 3,892,926 | $38,890,331 | $23,357,556 | -$15,532,775 | -39.94% | |
| Deep Track Capital, Lp | 0.52% | 3,565,062 | $35,614,969 | $21,390,372 | -$14,224,597 | -39.94% | |
| Janus Henderson Group Plc | 0.01% | 4,010,695 | $28,877,004 | $24,064,170 | -$4,812,834 | -16.67% | |
| Citadel Advisors Llc | 0.02% | 2,815,122 | $28,123,069 | $16,890,732 | -$11,232,337 | -39.94% | |
| Alyeska Investment Group, L.P. | 0.06% | 2,280,484 | $22,782,035 | $13,682,904 | -$9,099,131 | -39.94% | |
| Ameriprise Financial Inc | 0.00% | 2,225,783 | $22,235,593 | $13,354,698 | -$8,880,895 | -39.94% | |
| Vestal Point Capital, Lp | 0.50% | 2,160,000 | $21,578,400 | $12,960,000 | -$8,618,400 | -39.94% | |
| Redmile Group, Llc | 1.31% | 1,948,695 | $19,467,463 | $11,692,170 | -$7,775,293 | -39.94% | |
| Geode Capital Management, Llc | 0.00% | 1,940,824 | $19,391,710 | $11,644,944 | -$7,746,766 | -39.95% | |
| Goldman Sachs Group Inc | 0.00% | 1,602,917 | $16,013,141 | $9,617,502 | -$6,395,639 | -39.94% | |
| Adage Capital Partners Gp, L.L.C. | 0.02% | 1,506,506 | $15,049,995 | $9,039,036 | -$6,010,959 | -39.94% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,266,290 | $12,645,298 | $7,597,740 | -$5,047,558 | -39.92% | |
| Blair William & Co/Il | 0.02% | 756,277 | $7,555,207 | $4,537,662 | -$3,017,545 | -39.94% | |
| Vanguard Portfolio Management Llc | 0.00% | 748,589 | $7,478,404 | $4,491,534 | -$2,986,870 | -39.94% | |
| Woodline Partners Lp | 0.02% | 674,076 | $6,734,019 | $4,044,456 | -$2,689,563 | -39.94% | |
| Silverarc Capital Management, Llc | 0.74% | 668,450 | $6,677,816 | $4,010,700 | -$2,667,116 | -39.94% | |
| Birchview Capital, Lp | 3.11% | 666,196 | $6,655,298 | $3,997,176 | -$2,658,122 | -39.94% | |
| Northern Trust Corp | 0.00% | 603,647 | $6,030,434 | $3,621,882 | -$2,408,552 | -39.94% | |
| Moore Capital Management, Lp | 0.14% | 603,472 | $6,028,685 | $3,620,832 | -$2,407,853 | -39.94% | |
| Bank Of America Corp | 0.00% | 524,102 | $5,235,779 | $3,144,612 | -$2,091,167 | -39.94% | |
| Monashee Investment Management Llc | 8.38% | 500,000 | $4,995,000 | $3,000,000 | -$1,995,000 | -39.94% | |
| Vanguard Fiduciary Trust Co | 0.00% | 494,730 | $4,942,353 | $2,968,380 | -$1,973,973 | -39.94% | |
| Point72 Asset Management, L.P. | 0.01% | 448,008 | $4,475,600 | $2,688,048 | -$1,787,552 | -39.94% | |
| Stempoint Capital Lp | 0.62% | 358,780 | $3,584,212 | $2,152,680 | -$1,431,532 | -39.94% | |
| Boxer Capital Management, Llc | 0.23% | 300,000 | $2,997,000 | $1,800,000 | -$1,197,000 | -39.94% | |
| Jpmorgan Chase & Co | 0.00% | 281,673 | $2,667,443 | $1,690,038 | -$977,405 | -36.64% | |
| Ally Bridge Group (Ny) Llc | 3.30% | 255,959 | $2,557,030 | $1,535,754 | -$1,021,276 | -39.94% | |
| Morgan Stanley | 0.00% | 255,195 | $2,549,403 | $1,531,170 | -$1,018,233 | -39.94% | |
| Charles Schwab Investment Management Inc | 0.00% | 244,401 | $2,441,566 | $1,466,406 | -$975,160 | -39.94% | |
| Bank Of New York Mellon Corp | 0.00% | 243,154 | $2,429,105 | $1,458,924 | -$970,181 | -39.94% | |
| J. Goldman & Co Lp | 0.09% | 242,164 | $2,419,218 | $1,452,984 | -$966,234 | -39.94% | |
| Nuveen, Llc | 0.00% | 241,642 | $2,414,004 | $1,449,852 | -$964,152 | -39.94% | |
| D. E. Shaw & Co., Inc. | 0.00% | 222,789 | $2,225,662 | $1,336,734 | -$888,928 | -39.94% | |
| Ubs Group Ag | 0.00% | 188,347 | $1,881,587 | $1,130,082 | -$751,505 | -39.94% | |
| Algert Global Llc | 0.02% | 187,419 | $1,872,316 | $1,124,514 | -$747,802 | -39.94% | |
| Wellington Management Group Llp | 0.00% | 185,365 | $1,851,797 | $1,112,190 | -$739,607 | -39.94% | |
| Balyasny Asset Management L.P. | 0.00% | 178,253 | $1,780,747 | $1,069,518 | -$711,229 | -39.94% | |
| Susquehanna International Group, Llp | 0.00% | 163,037 | $1,628,740 | $978,222 | -$650,518 | -39.94% | |
| Apis Capital Advisors, Llc | 0.16% | 160,000 | $1,598,400 | $960,000 | -$638,400 | -39.94% | |
| Soleus Capital Management, L.P. | 0.05% | 150,000 | $1,498,500 | $900,000 | -$598,500 | -39.94% | |
| Citigroup Inc | 0.00% | 148,432 | $1,482,836 | $890,592 | -$592,244 | -39.94% |
Frequently asked questions about SLDB
Who are the largest institutional holders of SLDB?
The largest institutional holders of SLDB reported in the latest SEC Form 13F filings include Ra Capital Management, L.P., Perceptive Advisors Llc, Bain Capital Life Sciences Investors, Llc, Siren, L.L.C., and Blackrock, Inc.. InsiderSet ranks institutional holders by their latest reported SLDB position.
What is SLDB institutional ownership?
This page tracks SLDB positions reported by institutional investment managers through SEC Form 13F. SOLID BIOSCIENCES INC (SLDB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SLDB?
InsiderSet currently tracks 156 institutional managers reporting SLDB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SLDB shareholders.
How much SLDB stock do institutions own?
Institutional investment managers disclosed approximately $1.10B in SLDB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SLDB institutional ownership last updated?
The latest SLDB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SLDB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SLDB position after the reporting date.
Are institutions buying or selling SLDB?
Institutional buying and selling can be analyzed by comparing SLDB positions across consecutive 13F reporting periods. InsiderSet's SLDB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SLDB ownership changes.
How has SLDB institutional ownership changed over time?
InsiderSet tracks SLDB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.