PHIO Phio Pharmaceuticals Corp.: institutional ownership and insider trading
25 funds reported holding $755K of Phio Pharmaceuticals Corp. in their latest 13F filings; in Q2 2026 funds net sold $21.9K, with 4 new positions and 4 funds selling out; over the last 12 months insiders bought $91.2K and sold $0 on the open market.
Famous investors holding PHIO
- Ken Griffin (Citadel Advisors): $48.3K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $22.0K, 0.0% of the portfolio
Largest institutional holders of PHIO
- JANE STREET GROUP, LLC — $121K
- GEODE CAPITAL MANAGEMENT, LLC — $117K
- VANGUARD CAPITAL MANAGEMENT LLC — $96.6K
- VANGUARD GROUP INC — $92.0K
- NOMURA ASSET MANAGEMENT INTERNATIONAL INC. — $51.0K
- Cetera Investment Advisers — $48.7K
- CITADEL ADVISORS LLC — $48.3K
- VANGUARD FIDUCIARY TRUST CO — $39.1K
- NORTHERN TRUST CORP (NTRS, NTRSO) — $28.5K
- TWO SIGMA INVESTMENTS, LP — $22.0K
Recent PHIO insider trades
- Sep 29, 2026: Plott Ronald Todd bought 10,000 shares ($10.4K)
- Sep 24, 2026: Bradford Patricia A bought 6,500 shares ($6.57K)
- Sep 22, 2026: Bitterman Robert J bought 2,000 shares ($2.06K)
- Sep 15, 2026: Bradford Patricia A bought 12,000 shares ($12.4K)
5%+ owners
- CVI Investments, Inc.: 9.9% (Schedule 13G/A, filed Feb 17, 2026)
- Mitchell P. Kopin: 9.1% (Schedule 13G/A, filed Feb 13, 2026)