Scholar Rock Holding Corp
Total Trades
97
Buys
9
Sells
73
Largest Trade
$1M+
Insiders
22
Institutional Funds
215
Inst. Value
$1M+
Activist Filings
35
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $100K–$500K | 8K | $47.07 | Feb 25, 2026 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $500K+ | 15K | $46.71 | Jan 23, 2026 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $100K–$500K | 8K | $44.48 | Jan 22, 2026 |
| Parlavecchio Caryn | CHRO | SELL | $100K–$500K | 7K | $44.48 | Jan 22, 2026 |
| Marantz Jing L. | CHIEF MEDICAL OFFI… | SELL | $100K–$500K | 6K | $44.48 | Jan 22, 2026 |
| Ho Junlin | GENERAL COUNSEL | SELL | $100K–$500K | 8K | $44.48 | Jan 22, 2026 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $500K+ | 13K | $45.20 | Jan 16, 2026 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | EXERCISE | $100K–$500K | 13K | $18.53 | Jan 16, 2026 |
| Sinha Vikas | CFO | SELL | $500K+ | 17K | $42.70 | Jan 16, 2026 |
| Woods Keith | COO | SELL | $500K+ | 17K | $42.70 | Jan 16, 2026 |
| Vaishnaw Akshay | President of R&D | SELL | $500K+ | 20K | $42.70 | Jan 16, 2026 |
| Hallal David | CEO | SELL | $1M+ | 57K | $42.70 | Jan 16, 2026 |
| Peng Katie | Director | SELL | $15K–$50K | 1K | $44.09 | Dec 18, 2025 |
| AKKARAJU SRINIVAS | Director | BUY | $1M+ | 30K | $39.92 | Dec 17, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $1M+ | 136K | $45.21 | Dec 5, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | EXERCISE | $1M+ | 136K | $21.21 | Dec 5, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $100K–$500K | 3K | $30.67 | Sep 24, 2025 |
| Peng Katie | Director | SELL | $15K–$50K | 1K | $32.53 | Sep 17, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $100K–$500K | 3K | $33.52 | Sep 17, 2025 |
| FLIER JEFFREY S. | Director | SELL | $100K–$500K | 11K | $40.02 | Jul 18, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $500K+ | 24K | $34.44 | Jul 11, 2025 |
| FLIER JEFFREY S. | Director | EXERCISE | $100K–$500K | 20K | $21.62 | Jun 25, 2025 |
| FLIER JEFFREY S. | Director | SELL | $1M+ | 31K | $32.58 | Jun 25, 2025 |
| Peng Katie | Director | SELL | $50K–$100K | 3K | $31.97 | Jun 17, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $100K–$500K | 4K | $32.00 | Jun 17, 2025 |
| Parlavecchio Caryn | CHRO | SELL | $100K–$500K | 6K | $32.00 | Jun 17, 2025 |
| Ho Junlin | GENERAL COUNSEL | SELL | $100K–$500K | 7K | $32.00 | Jun 17, 2025 |
| FLIER JEFFREY S. | Director | SELL | $100K–$500K | 6K | $29.73 | May 30, 2025 |
| Burow Kristina | Director | SELL | $100K–$500K | 5K | $29.72 | May 30, 2025 |
| Gilman Michael | Director | SELL | $100K–$500K | 3K | $29.72 | May 30, 2025 |
| Brudnick Richard | Director | SELL | $100K–$500K | 6K | $29.72 | May 30, 2025 |
| Reed Joshua | Director | SELL | $100K–$500K | 5K | $29.72 | May 30, 2025 |
| Vaishnaw Akshay | President of R&D | SELL | $100K–$500K | 7K | $29.72 | May 30, 2025 |
| Sacco Tracey | Chief Commercial O… | SELL | $100K–$500K | 5K | $32.83 | Apr 29, 2025 |
| Sacco Tracey | Chief Commercial O… | EXERCISE | $50K–$100K | 5K | $10.00 | Apr 29, 2025 |
| Sacco Tracey | Chief Commercial O… | SELL | $100K–$500K | 7K | $33.08 | Mar 25, 2025 |
| Sacco Tracey | Chief Commercial O… | EXERCISE | $50K–$100K | 5K | $10.00 | Mar 25, 2025 |
| Moore Erin | Interim PFO and PAO | SELL | $100K–$500K | 14K | $33.12 | Mar 25, 2025 |
| Moore Erin | Interim PFO and PAO | EXERCISE | $100K–$500K | 14K | $17.33 | Mar 25, 2025 |
| Peng Katie | Director | SELL | $15K–$50K | 1K | $34.42 | Mar 19, 2025 |
| Myles Edward H | COO & CFO | SELL | $1M+ | 142K | $35.62 | Mar 12, 2025 |
| Myles Edward H | COO & CFO | EXERCISE | $1M+ | 113K | $13.60 | Mar 12, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | EXERCISE | $100K–$500K | 48K | $10.19 | Feb 21, 2025 |
| Qatanani Mo | CHIEF SCIENTIFIC O… | SELL | $1M+ | 73K | $37.37 | Feb 21, 2025 |
| Parlavecchio Caryn | CHRO | SELL | $100K–$500K | 5K | $36.83 | Feb 20, 2025 |
| Myles Edward H | COO & CFO | SELL | $100K–$500K | 8K | $36.83 | Feb 20, 2025 |
| Ho Junlin | GENERAL COUNSEL | SELL | $100K–$500K | 6K | $36.83 | Feb 20, 2025 |
| Backstrom Jay T. | CHIEF EXECUTIVE OF… | SELL | $500K+ | 18K | $36.83 | Feb 20, 2025 |
| Backstrom Jay T. | CHIEF EXECUTIVE OF… | SELL | $500K+ | 22K | $44.20 | Jan 21, 2025 |
| Marantz Jing L. | CHIEF MEDICAL OFFI… | SELL | $100K–$500K | 6K | $44.20 | Jan 21, 2025 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 215 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Siren, L.L.C. | 10.8M | $1M+ | SH |
| Samsara BioCapital, LLC | 6.9M | $1M+ | SH |
| Redmile Group, LLC | 5.2M | $1M+ | SH |
| STATE STREET CORP | 4.0M | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 2.5M | $1M+ | SH |
| EVENTIDE ASSET MANAGEMENT, LLC | 2.4M | $1M+ | SH |
| NORGES BANK | 2.1M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $1M+ | SH |
| Pictet Asset Management Holding SA | 1.2M | $1M+ | SH |
| Capital World Investors | 1.1M | $1M+ | SH |
| Ensign Peak Advisors, Inc | 836K | $1M+ | SH |
| FEDERATED HERMES, INC. | 798K | $1M+ | SH |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 769K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 708K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 702K | $1M+ | SH |
| BNP Paribas Asset Management Holding S.A. | 695K | $1M+ | SH |
| VANGUARD GROUP INC | 577K | $1M+ | SH |
| LOOMIS SAYLES & CO L P | 565K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 555K | $1M+ | SH |
| Fisher Asset Management, LLC | 531K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Wellington Management Group LLP
SC 13G · Feb 10, 2026
5.6%
5.8M shares
T. Rowe Price Associates, Inc.
SC 13G/A · Nov 14, 2025
7.2%
6.9M shares
SC 13D/A · Oct 8, 2025
6.6%
6.4M shares
T. Rowe Price Associates, Inc.
SC 13G/A · Aug 14, 2025
9.2%
8.8M shares
SC 13G/A · Feb 15, 2025
9.9%
9.9M shares
SC 13G/A · Feb 12, 2025
11.4%
10.8M shares
SC 13G/A · Feb 12, 2025
15.0%
14.1M shares
SC 13G/A · Nov 15, 2024
9.9%
8.3M shares
SC 13G/A · Nov 15, 2024
0.6%
503K shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Nov 14, 2024
10.8%
8.7M shares
SC 13G/A · Nov 12, 2024
5.0%
4.0M shares
SC 13G/A · Nov 12, 2024
13.3%
10.7M shares
SC 13G/A · Nov 4, 2024
5.0%
4.0M shares
SC 13D/A · Oct 8, 2024
8.2%
6.7M shares
SC 13G/A · Jul 29, 2024
15.8%
12.8M shares
SC 13G · Feb 15, 2024
4.1%
3.0M shares
SC 13G/A · Feb 14, 2024
9.9%
7.7M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2024
12.3%
9.0M shares
SC 13G/A · Feb 9, 2024
17.4%
1.3B shares
SC 13G · Jan 26, 2024
6.9%
5.0M shares
SC 13D/A · Oct 18, 2023
11.0%
7.9M shares
SC 13D · Feb 14, 2023
10.7%
5.7M shares
SC 13G/A · Feb 14, 2023
9.9%
5.5M shares
SC 13G/A · Feb 14, 2023
4.1%
2.1M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2023
14.7%
7.7M shares
SC 13G/A · Feb 11, 2023
19.8%
10.6M shares
SC 13G/A · Nov 18, 2022
9.9%
5.5M shares
SC 13G · Jul 8, 2022
2.1%
1.1M shares
SC 13G/A · Jun 27, 2022
9.9%
5.4M shares
SC 13G/A · Jun 24, 2022
19.4%
10.3M shares
SC 13G/A · Feb 14, 2022
9.9%
3.6M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
14.9%
5.3M shares
SC 13G/A · Feb 11, 2022
6.5%
2.3M shares
Polaris Venture Partners VI, L.P.
SC 13G/A · Feb 11, 2022
6.9%
2.4M shares
SC 13G/A · Feb 11, 2022
7.0%
2.5M shares