Phio PharmaceuticalsPHIO

13F holders, Q4 2025 (December 31)
17holders +6
8new positions
2sold out
$1.05avg. 13F price*

At the end of Q4 2025, 17 institutions reported holding Phio Pharmaceuticals Corp. (PHIO) in their 13F filings, up 6 from Q3 2025. 8 opened new positions and 2 sold out. The largest holders were Geode Capital Management, LLC ($97K), Vanguard Group Inc. ($92K) and Cetera Investment Advisers ($45K).

Company
Phio Pharmaceuticals Corp.
CUSIP
71880W501
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q3 2024: 6Q3 2024Q4 2024: 11Q4 2024Q1 2025: 11Q1 2025Q2 2025: 11Q2 2025Q3 2025: 11Q3 2025Q4 2025: 17Q4 2025Q1 2026: 24Q1 2026Q2 2026: 24Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions8$130K
Exits2$2K

All 13F filers, Q3 2025 → Q4 2025: 176,181 shares bought and 819 shares sold, net +175,362 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 17 holders

Geode Capital Management, LLC 0.00% Add +60.0% 92,638 $97K
Vanguard Group Inc. 0.00% No change 87,628 $92K
Cetera Investment Advisers 0.00% Add +26.9% 42,500 $45K
Northern Trust Corp. 0.00% New 23,758 $25K
DRW Securities, LLC 0.00% New 22,636 $24K
Susquehanna International Group, LLP 0.00% New 20,091 $21K
Two Sigma Investments, LP 0.00% New 14,494 $15K
StoneX Group Inc. 0.00% New 11,828 $12K
Robertson Stephens Wealth Management, LLC 0.00% New 10,800 $11K
Virtu Financial LLC 0.00% New 10,214 $11K
Captrust Financial Advisors 0.00% New 10,000 $11K
UBS Group AG 0.00% Add +66007.7% 8,594 $9K
Morgan Stanley 0.00% No change 6,000 $6K
Bank of America Corp. 0.00% Add +0.9% 1,413 $1K
SBI Securities Co., Ltd. 0.00% Add +3.1% 1,135 $1K
Assetmark, Inc. 0.00% No change 110 $116
Activest Wealth Management 0.00% No change 9 $9

"% of holder's portfolio" is PHIO's weight in each manager's 13F, not the share of Phio Pharmaceuticals Corp. the manager owns.