SOLID BIOSCIENCES INC (SLDB) Institutional Shareholders
SOLID BIOSCIENCES INC (SLDB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $1.10B in SLDB holdings during the latest filing period.
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 $107.24M, representing an estimated loss of -10.81% 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
154
Total Reported Value
$1.10B
Largest Holder
Ra Capital Management, L.P.
Largest Position
$120.24M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
113
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 | $107,241,883 | -$12,999,016 | -10.81% | |
| Perceptive Advisors Llc | 1.85% | 11,906,646 | $118,947,393 | $106,088,216 | -$12,859,177 | -10.81% | |
| Bain Capital Life Sciences Investors, Llc | 5.83% | 9,808,819 | $97,990,102 | $87,396,577 | -$10,593,525 | -10.81% | |
| Siren, L.L.C. | 1.56% | 7,690,405 | $76,827,146 | $68,521,509 | -$8,305,637 | -10.81% | |
| Blackrock, Inc. | 0.00% | 6,934,248 | $69,273,136 | $61,784,150 | -$7,488,986 | -10.81% | |
| Fmr Llc | 0.00% | 6,875,957 | $68,690,808 | $61,264,777 | -$7,426,031 | -10.81% | |
| Armistice Capital, Llc | 1.18% | 4,278,000 | $42,737,220 | $38,116,980 | -$4,620,240 | -10.81% | |
| State Street Corp | 0.00% | 4,175,365 | $41,711,896 | $37,202,502 | -$4,509,394 | -10.81% | |
| Vanguard Capital Management Llc | 0.00% | 4,009,922 | $40,059,121 | $35,728,405 | -$4,330,716 | -10.81% | |
| Rtw Investments, Lp | 0.33% | 3,892,926 | $38,890,331 | $34,685,971 | -$4,204,360 | -10.81% | |
| Deep Track Capital, Lp | 0.52% | 3,565,062 | $35,614,969 | $31,764,702 | -$3,850,267 | -10.81% | |
| Janus Henderson Group Plc | 0.01% | 4,010,695 | $28,877,004 | $35,735,292 | +$6,858,288 | +23.75% | |
| Citadel Advisors Llc | 0.02% | 2,815,122 | $28,123,069 | $25,082,737 | -$3,040,332 | -10.81% | |
| Alyeska Investment Group, L.P. | 0.06% | 2,280,484 | $22,782,035 | $20,319,112 | -$2,462,923 | -10.81% | |
| Ameriprise Financial Inc | 0.00% | 2,225,783 | $22,235,593 | $19,831,727 | -$2,403,866 | -10.81% | |
| Vestal Point Capital, Lp | 0.50% | 2,160,000 | $21,578,400 | $19,245,600 | -$2,332,800 | -10.81% | |
| Redmile Group, Llc | 1.31% | 1,948,695 | $19,467,463 | $17,362,872 | -$2,104,591 | -10.81% | |
| Geode Capital Management, Llc | 0.00% | 1,940,824 | $19,391,710 | $17,292,742 | -$2,098,968 | -10.82% | |
| Goldman Sachs Group Inc | 0.00% | 1,602,917 | $16,013,141 | $14,281,990 | -$1,731,151 | -10.81% | |
| Adage Capital Partners Gp, L.L.C. | 0.02% | 1,506,506 | $15,049,995 | $13,422,968 | -$1,627,027 | -10.81% | |
| Dimensional Fund Advisors Lp | 0.00% | 1,266,290 | $12,645,298 | $11,282,644 | -$1,362,654 | -10.78% | |
| Blair William & Co/Il | 0.02% | 756,277 | $7,555,207 | $6,738,428 | -$816,779 | -10.81% | |
| Vanguard Portfolio Management Llc | 0.00% | 748,589 | $7,478,404 | $6,669,928 | -$808,476 | -10.81% | |
| Woodline Partners Lp | 0.02% | 674,076 | $6,734,019 | $6,006,017 | -$728,002 | -10.81% | |
| Silverarc Capital Management, Llc | 0.74% | 668,450 | $6,677,816 | $5,955,890 | -$721,927 | -10.81% | |
| Birchview Capital, Lp | 3.11% | 666,196 | $6,655,298 | $5,935,806 | -$719,492 | -10.81% | |
| Northern Trust Corp | 0.00% | 603,647 | $6,030,434 | $5,378,495 | -$651,939 | -10.81% | |
| Moore Capital Management, Lp | 0.14% | 603,472 | $6,028,685 | $5,376,936 | -$651,749 | -10.81% | |
| Bank Of America Corp | 0.00% | 524,102 | $5,235,779 | $4,669,749 | -$566,030 | -10.81% | |
| Monashee Investment Management Llc | 8.38% | 500,000 | $4,995,000 | $4,455,000 | -$540,000 | -10.81% | |
| Vanguard Fiduciary Trust Co | 0.00% | 494,730 | $4,942,353 | $4,408,044 | -$534,309 | -10.81% | |
| Point72 Asset Management, L.P. | 0.01% | 448,008 | $4,475,600 | $3,991,751 | -$483,849 | -10.81% | |
| Stempoint Capital Lp | 0.62% | 358,780 | $3,584,212 | $3,196,730 | -$387,482 | -10.81% | |
| Boxer Capital Management, Llc | 0.23% | 300,000 | $2,997,000 | $2,673,000 | -$324,000 | -10.81% | |
| Jpmorgan Chase & Co | 0.00% | 281,673 | $2,667,443 | $2,509,706 | -$157,737 | -5.91% | |
| Ally Bridge Group (Ny) Llc | 3.30% | 255,959 | $2,557,030 | $2,280,595 | -$276,435 | -10.81% | |
| Morgan Stanley | 0.00% | 255,195 | $2,549,403 | $2,273,787 | -$275,616 | -10.81% | |
| Charles Schwab Investment Management Inc | 0.00% | 244,401 | $2,441,566 | $2,177,613 | -$263,953 | -10.81% | |
| Bank Of New York Mellon Corp | 0.00% | 243,154 | $2,429,105 | $2,166,502 | -$262,603 | -10.81% | |
| J. Goldman & Co Lp | 0.09% | 242,164 | $2,419,218 | $2,157,681 | -$261,537 | -10.81% | |
| Nuveen, Llc | 0.00% | 241,642 | $2,414,004 | $2,153,030 | -$260,974 | -10.81% | |
| D. E. Shaw & Co., Inc. | 0.00% | 222,789 | $2,225,662 | $1,985,050 | -$240,612 | -10.81% | |
| Ubs Group Ag | 0.00% | 188,347 | $1,881,587 | $1,678,172 | -$203,415 | -10.81% | |
| Algert Global Llc | 0.02% | 187,419 | $1,872,316 | $1,669,903 | -$202,413 | -10.81% | |
| Wellington Management Group Llp | 0.00% | 185,365 | $1,851,797 | $1,651,602 | -$200,195 | -10.81% | |
| Balyasny Asset Management L.P. | 0.00% | 178,253 | $1,780,747 | $1,588,234 | -$192,513 | -10.81% | |
| Susquehanna International Group, Llp | 0.00% | 163,037 | $1,628,740 | $1,452,660 | -$176,080 | -10.81% | |
| Apis Capital Advisors, Llc | 0.16% | 160,000 | $1,598,400 | $1,425,600 | -$172,800 | -10.81% | |
| Soleus Capital Management, L.P. | 0.05% | 150,000 | $1,498,500 | $1,336,500 | -$162,000 | -10.81% | |
| Citigroup Inc | 0.00% | 148,432 | $1,482,836 | $1,322,529 | -$160,307 | -10.81% |
Frequently asked questions about SLDB
Who owns the most SLDB stock?
The largest holders of SLDB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for SOLID BIOSCIENCES INC (SLDB).
Is SLDB widely held by superinvestors?
Many widely followed stocks like SLDB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly SLDB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.