Scholar Rock Holding Corporation
Scholar Rock Holding Corporation (SRRK) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SRRK · as of Sep 30, 2025
Ownership Breakdown
272
Institutional Holders
▲ 23 vs Q2
$5.40B
Total Inst. Value
▲ $1.51B vs Q2
119.83M
Shares Outstanding
freeFloat 80.44%
116.01M
13F Shares Held
▲ 6.23M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SRRK largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC biological products, (no diagnostic substances) | 14.01M | 12.43% | 12.43% | $521.81B | Nov 13, 2025 | ▲ 177.2K |
SIREN, L.L.C. biological products, (no diagnostic substances) | 9.25M | 8.21% | 8.21% | $344.47B | Nov 13, 2025 | — held |
PRICE T ROWE ASSOCIATES INC /MD/ biological products, (no diagnostic substances) | 6.88M | 6.11% | 6.11% | $256.33B | Nov 14, 2025 | ▼ 1.88M |
BLACKROCK, INC. biological products, (no diagnostic substances) | 6.76M | 6.00% | 6.00% | $251.75B | Nov 12, 2025 | ▲ 64.3K |
SAMSARA BIOCAPITAL, LLC biological products, (no diagnostic substances) | 5.61M | 4.98% | 4.98% | $209.02B | Nov 14, 2025 | — held |
VANGUARD GROUP INC biological products, (no diagnostic substances) | 4.91M | 4.36% | 4.36% | $183.03B | Nov 7, 2025 | ▲ 53.3K |
WELLINGTON MANAGEMENT GROUP LLP biological products, (no diagnostic substances) | 4.55M | 4.03% | 4.03% | $169.29B | Nov 14, 2025 | ▲ 2.52M |
REDMILE GROUP, LLC biological products, (no diagnostic substances) | 3.90M | 3.46% | 3.46% | $145.40B | Nov 14, 2025 | ▼ 24.6K |
STATE STREET CORP biological products, (no diagnostic substances) | 3.76M | 3.34% | 3.34% | $140.14B | Nov 14, 2025 | ▲ 688.8K |
BELLEVUE GROUP AG biological products, (no diagnostic substances) | 3.24M | 2.88% | 2.88% | $120.83B | Nov 14, 2025 | ▲ 297.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
30
Increased
+12.80M shares2
New Positions
first time holders11
Decreased
−4.17M shares0
Sold Out
fully exitedNet shares change (top 50)
+8.63M
+12.80M / −4.17M
Net new holders
+21
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SRRK insider trading · insider activity
Source: SEC Form 4
4
Buy transactions
8
Sell transactions
0.50
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
FLIER JEFFREY S. director | Jun 4, 2026 | Award | 6,839 | — | — | 30.9K | Form 4 ↗ |
FLIER JEFFREY S. director | Jun 4, 2026 | Award | 4,310 | $45.33 | $195.4K | 4.3K | Form 4 ↗ |
Reed Joshua director | Jun 4, 2026 | Award | 6,839 | — | — | 22.6K | Form 4 ↗ |
Reed Joshua director | Jun 4, 2026 | Award | 4,310 | $45.33 | $195.4K | 4.3K | Form 4 ↗ |
Brudnick Richard director | Jun 4, 2026 | Award | 6,839 | — | — | 21.9K | Form 4 ↗ |
Brudnick Richard director | Jun 4, 2026 | Award | 4,310 | $45.33 | $195.4K | 4.3K | Form 4 ↗ |
Burow Kristina director | Jun 4, 2026 | Award | 6,839 | — | — | 117.7K | Form 4 ↗ |
Burow Kristina director | Jun 4, 2026 | Award | 4,310 | $45.33 | $195.4K | 4.3K | Form 4 ↗ |
Gilman Michael director | Jun 4, 2026 | Award | 6,839 | — | — | 62.1K | Form 4 ↗ |
Gilman Michael director | Jun 4, 2026 | Award | 4,310 | $45.33 | $195.4K | 4.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Scholar Rock Holding Corporation (SRRK) is primarily owned by institutional investors, who hold approximately 96.8% of total shares outstanding. Company insiders own approximately 19.56%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Scholar Rock Holding Corporation is FMR LLC, holding approximately 14.01 million shares — equal to 12.43% of outstanding shares — as of September 30, 2025.
A total of 272 institutional investors currently hold SRRK stock, with a combined institutional value of approximately $5.40 billion as of the most recent 13F filing period.
Frequently asked questions
SRRK ownershipScholar Rock Holding Corporation (SRRK) is primarily owned by institutional investors, who hold approximately 96.8% of shares. The largest shareholder is FMR LLC with a 12.43% stake. Company insiders hold 19.56%. Data sourced from SEC Form 13F as of September 30, 2025.