Spruce Street Capital LP: ALTO NEUROSCIENCE INC (ANRO): Quarterly 13F Position History
As of Q2 2026, Spruce Street Capital LP reported 1,353,047 shares of ALTO NEUROSCIENCE INC (ANRO), worth $35.7M and representing 7.0% of its 13F equity book. Quarter-over-quarter share count change: + 27,837 (+2.1%) . The position first appeared in Q4 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 1,353,047Shares Held (Latest Filing)
- $35.7MReported Market Value (Latest Filing)
- 7.0%Portfolio Weight (% of 13F Equity Book)
- +27,837Quarter-over-Quarter Share Change
- +$6.6MQuarter-over-Quarter Value Change
- 1,353,047Peak 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 | 1,353,047 | +27,837 | +2.1% | $35.7M | 7.0% | $26.4 |
| Q1 2026 | 1,325,210 | +1,102,366 | +494.7% | $29.1M | 7.0% | $22.0 |
| Q4 2025 | 222,844 | – | – | $4.0M | 1.3% | $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 Spruce Street Capital LP first disclose a ANRO position in 13F-HR filings?
Spruce Street 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 Spruce Street Capital LP's most recent quarter-over-quarter share-count change in ANRO?
Between Q1 2026 and Q2 2026, Spruce Street Capital LP added 27,837 shares of ANRO (+2.1%), bringing the total reported position to 1,353,047 shares at a market value of $35.7M.
Does the implied price-per-share represent Spruce Street 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.