No AI summary for this filing type
View Full Filing (SEC EDGAR)Solid Biosciences Inc
$5.74+5%
+$205.7M
Net Activity
+18.82% total shares
Institutions Holding
159
Popularity Rank
#3555
Avg Weight
0.19%
Total Value
$1.1B
Market Cap
$502.3M
159 institutions currently hold SLDB, with 106 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
106
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 #3555 out of 37696 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.
GAMMA Investing LLC has added to its SLDB position for two straight quarters, increasing it by $11.8K to reach $19.8K today.
Essential Partners LLC has trimmed its SLDB position for two straight quarters, cutting it by $19.9K while still holding $1.9K.
SLDB is up 5% today, and institutions have been net buyers of $205.7M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
SLDB reported a net loss of $207.1M over the trailing twelve months.
+$320.5M
Total Buy Value
$102.4M
Total Sell Value
106
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 2026-09-30 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
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,136
Total reported value
$649.5B
Held by 4136 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,134
Total reported value
$712.8B
Held by 4134 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,112
Total reported value
$390.3B
Held by 4112 institutions — one of the most-tracked stocks on AlphaSMO
Access SLDB's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/SLDBCLI
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