Samsara BioCapital, LLC: SCHOLAR ROCK HLDG CORP (SRRK): Quarterly 13F Position History
As of Q1 2026, Samsara BioCapital, LLC reported 6,897,652 shares of SCHOLAR ROCK HLDG CORP (SRRK), worth $339.1M and representing 32.9% of its 13F equity book. The position first appeared in Q1 2022 and has been disclosed across 17 13F-HR filings in Pactolio's tracked window.
- 6,897,652Shares Held (Latest Filing)
- $339.1MReported Market Value (Latest Filing)
- 32.9%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$35.2MQuarter-over-Quarter Value Change
- 6,897,652Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 17 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 6,897,652 | 0 | — | $339.1M | 32.9% | $49.2 |
| Q4 2025 | 6,897,652 | +1,284,756 | +22.9% | $303.8M | 31.3% | $44.0 |
| Q3 2025 | 5,612,896 | 0 | — | $209.0M | 27.3% | $37.2 |
| Q2 2025 | 5,612,896 | 0 | — | $198.8M | 40.7% | $35.4 |
| Q1 2025 | 5,612,896 | 0 | — | $180.5M | 32.2% | $32.1 |
| Q4 2024 | 5,612,896 | 1,175,713 | -17.3% | $242.6M | 33.3% | $43.2 |
| Q3 2024 | 6,788,609 | 0 | — | $54.4M | 10.5% | $8.0 |
| Q2 2024 | 6,788,609 | 0 | — | $56.5M | 11.8% | $8.3 |
| Q1 2024 | 6,788,609 | 0 | — | $120.6M | 18.7% | $17.8 |
| Q4 2023 | 6,788,609 | +2,189,781 | +47.6% | $127.6M | 19.9% | $18.8 |
| Q3 2023 | 4,598,828 | 0 | — | $32.7M | 10.0% | $7.1 |
| Q2 2023 | 4,598,828 | 0 | — | $34.7M | 6.1% | $7.5 |
| Q1 2023 | 4,598,828 | 0 | — | $36.8M | 7.6% | $8.0 |
| Q4 2022 | 4,598,828 | 0 | — | $41.6M | 9.0% | $9.1 |
| Q3 2022 | 4,598,828 | 0 | — | $31.9M | 7.4% | $6.9 |
| Q2 2022 | 4,598,828 | +4,259,217 | +1254.1% | $25.2M | 6.8% | $5.5 |
| Q1 2022 | 339,611 | — | — | $4.4M | 1.1% | $12.9 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Samsara BioCapital, LLC first disclose a SRRK position in 13F-HR filings?
Samsara BioCapital, LLC first reported SCHOLAR ROCK HLDG CORP (SRRK) on its 13F-HR filing for the period ending 2022-03-31 (Q1 2022). The position has appeared on 17 reported quarters within Pactolio's tracked window.
What was Samsara BioCapital, LLC's most recent quarter-over-quarter share-count change in SRRK?
Samsara BioCapital, LLC held the same 6,897,652 shares of SRRK between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Samsara BioCapital, LLC's cost basis in SRRK?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.