Commodore Capital LP: ALTO NEUROSCIENCE INC (ANRO): Quarterly 13F Position History
As of Q2 2026, Commodore Capital LP reported 2,723,196 shares of ALTO NEUROSCIENCE INC (ANRO), worth $71.9M and representing 4.3% of its 13F equity book. The position first appeared in Q4 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 2,723,196Shares Held (Latest Filing)
- $71.9MReported Market Value (Latest Filing)
- 4.3%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$10.6MQuarter-over-Quarter Value Change
- 2,723,196Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 3 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,723,196 | 0 | – | $71.9M | 4.3% | $26.4 |
| Q1 2026 | 2,723,196 | +900,000 | +49.4% | $61.2M | 3.5% | $22.5 |
| Q4 2025 | 1,823,196 | – | – | $32.5M | 2.2% | $17.8 |
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 rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did Commodore Capital LP first disclose a ANRO position in 13F-HR filings?
Commodore Capital LP first reported ALTO NEUROSCIENCE INC (ANRO) on its 13F-HR filing for the period ending 2025-12-31 (Q4 2025). The position has appeared on 3 reported quarters within Pactolio's tracked window.
What was Commodore Capital LP's most recent quarter-over-quarter share-count change in ANRO?
Commodore Capital LP held the same 2,723,196 shares of ANRO between Q1 2026 and Q2 2026, so the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Commodore Capital LP's cost basis in ANRO?
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.