Octagon Capital Advisors LP: COGENT BIOSCIENCES INC (COGT): Quarterly 13F Position History
As of Q1 2026, Octagon Capital Advisors LP reported 2,350,000 shares of COGENT BIOSCIENCES INC (COGT), worth $90.5M and representing 10.0% of its 13F equity book. The position first appeared in Q3 2024 and has been disclosed across 7 13F-HR filings in Pactolio's tracked window.
- 2,350,000Shares Held (Latest Filing)
- $90.5MReported Market Value (Latest Filing)
- 10.0%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$7.0MQuarter-over-Quarter Value Change
- 2,874,111Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 7 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 2,350,000 | 0 | — | $90.5M | 10.0% | $38.5 |
| Q4 2025 | 2,350,000 | 524,111 | -18.2% | $83.5M | 10.5% | $35.5 |
| Q3 2025 | 2,874,111 | +111,111 | +4.0% | $41.3M | 6.4% | $14.4 |
| Q2 2025 | 2,763,000 | +669,000 | +31.9% | $19.8M | 4.4% | $7.2 |
| Q1 2025 | 2,094,000 | 669,000 | -24.2% | $45.8M | 9.0% | $21.9 |
| Q4 2024 | 2,763,000 | +1,458,000 | +111.7% | $21.6M | 3.7% | $7.8 |
| Q3 2024 | 1,305,000 | — | — | $14.1M | 2.3% | $10.8 |
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 Octagon Capital Advisors LP first disclose a COGT position in 13F-HR filings?
Octagon Capital Advisors LP first reported COGENT BIOSCIENCES INC (COGT) on its 13F-HR filing for the period ending 2024-09-30 (Q3 2024). The position has appeared on 7 reported quarters within Pactolio's tracked window.
What was Octagon Capital Advisors LP's most recent quarter-over-quarter share-count change in COGT?
Octagon Capital Advisors LP held the same 2,350,000 shares of COGT between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Octagon Capital Advisors LP's cost basis in COGT?
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.