Saturn V Capital Management LP: ALUMIS INC (ALMS): Quarterly 13F Position History
As of Q1 2026, Saturn V Capital Management LP reported 3,202,075 shares of ALUMIS INC (ALMS), worth $70.5M and representing 12.8% of its 13F equity book. Quarter-over-quarter share count change: + 66,122 (+2.1%) . The position first appeared in Q4 2025 and has been disclosed across 2 13F-HR filings in Pactolio's tracked window.
- 3,202,075Shares Held (Latest Filing)
- $70.5MReported Market Value (Latest Filing)
- 12.8%Portfolio Weight (% of 13F Equity Book)
- +66,122Quarter-over-Quarter Share Change
- +$39.9MQuarter-over-Quarter Value Change
- 3,202,075Peak Reported Shares (Historical)
Recent initiation: Saturn V Capital Management LP first reported ALMS on the Q4 2025 filing — fewer than three quarters of history are available.
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 2 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 3,202,075 | +66,122 | +2.1% | $70.5M | 12.8% | $22.0 |
| Q4 2025 | 3,135,953 | — | — | $30.6M | 5.6% | $9.8 |
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, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Saturn V Capital Management LP first disclose a ALMS position in 13F-HR filings?
Saturn V Capital Management LP first reported ALUMIS INC (ALMS) on its 13F-HR filing for the period ending 2025-12-31 (Q4 2025). The position has appeared on 2 reported quarters within Pactolio's tracked window.
What was Saturn V Capital Management LP's most recent quarter-over-quarter share-count change in ALMS?
Between Q4 2025 and Q1 2026, Saturn V Capital Management LP added 66,122 shares of ALMS (+2.1%), bringing the total reported position to 3,202,075 shares at a market value of $70.5M.
Does the implied price-per-share represent Saturn V Capital Management LP's cost basis in ALMS?
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.