No AI summary for this filing type
View Full Filing (SEC EDGAR)Solid Biosciences Inc
$9.77-3.6%
+$205.7M
Net Activity
+18.82% total shares
Institutions Holding
158
Popularity Rank
#3568
Avg Weight
0.19%
Total Value
$1.1B
Market Cap
$854.9M
158 institutions currently hold SLDB, with 104 net buyers and 68 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
68
Net Buying Institutions
104
Top 5 by Value
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Across its top 20 institutional holders, SLDB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 15/100, avg. turnover score 45/100).
SLDB ranks #3568 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
SLDB is a top-conviction position for Monashee Investment Management LLC — at 8.4% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in SLDB belongs to Ra Capital Management, L.p., but the position matters far more to Monashee Investment Management LLC, who has 8.4% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Ra Capital Management, L.p. has added to its SLDB position for two straight quarters, increasing it by $87.5M to reach $120.2M today.
Ikarian Capital, LLC has trimmed its SLDB position for two straight quarters, cutting it by $2.9M while still holding $429.1K.
SLDB is down 3.6% today, but institutions show net buying of $205.7M this quarter — a divergence between today's price move and the underlying institutional flow.
SLDB reported a net loss of $207.1M over the trailing twelve months.
+$290.0M
Total Buy Value
$102.4M
Total Sell Value
104
Net Buyers
68
Net Sellers
SLDB
Q2 2026
Top 5 Institutional Movers
SLDB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Vestal Point Capital, LP | 13G/A | 2026-08-14 | 4.8% |
| Perceptive Advisors LLC | 13D/A | 2026-08-14 | 11.2% |
1
Filings (14d)
No AI summary for this filing type
View Full Filing (SEC EDGAR)83422E204, 83422E105
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,239
Total reported value
$2.2T
3224 13F institutions increased their position this quarter
Institutions Holding
5,987
Total reported value
$3.6T
3028 13F institutions increased their position this quarter
Institutions Holding
6,149
Total reported value
$1.8T
2966 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,110
Total reported value
$279.6B
Held by 4110 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,107
Total reported value
$712.4B
Held by 4107 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,086
Total reported value
$390.1B
Held by 4086 institutions — one of the most-tracked stocks on AlphaSMO
Access SLDB's institutional ownership data programmatically:
REST API
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