Octagon Capital Advisors LP: DEFINIUM THERAPEUTICS INC (DFTX): Quarterly 13F Position History
As of Q2 2026, Octagon Capital Advisors LP reported 2,950,000 shares of DEFINIUM THERAPEUTICS INC (DFTX), worth $138.8M and representing 12.7% of its 13F equity book. Quarter-over-quarter share count change: + 510,000 (+20.9%) . The position first appeared in Q1 2026 and has been disclosed across 2 13F-HR filings in Pactolio's tracked window.
- 2,950,000Shares Held (Latest Filing)
- $138.8MReported Market Value (Latest Filing)
- 12.7%Portfolio Weight (% of 13F Equity Book)
- +510,000Quarter-over-Quarter Share Change
- +$92.7MQuarter-over-Quarter Value Change
- 2,950,000Peak Reported Shares (Historical)
Recent initiation: Octagon Capital Advisors LP first reported DFTX on the Q1 2026 filing, so 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 2,950,000 | +510,000 | +20.9% | $138.8M | 12.7% | $47.0 |
| Q1 2026 | 2,440,000 | – | – | $46.1M | 5.1% | $18.9 |
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 rather than the manager's cost basis. See the full methodology document for the normalization rules.
When did Octagon Capital Advisors LP first disclose a DFTX position in 13F-HR filings?
Octagon Capital Advisors LP first reported DEFINIUM THERAPEUTICS INC (DFTX) on its 13F-HR filing for the period ending 2026-03-31 (Q1 2026). The position has appeared on 2 reported quarters within Pactolio's tracked window.
What was Octagon Capital Advisors LP's most recent quarter-over-quarter share-count change in DFTX?
Between Q1 2026 and Q2 2026, Octagon Capital Advisors LP added 510,000 shares of DFTX (+20.9%), bringing the total reported position to 2,950,000 shares at a market value of $138.8M.
Does the implied price-per-share represent Octagon Capital Advisors LP's cost basis in DFTX?
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.