Phio Pharmaceuticals Corp.
PHIO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001533040
In the last 90 days, Phio Pharmaceuticals Corp. insiders filed 5 open-market purchases and 0 sales; 24 institutions reported holding it in 13F filings for Q2 2026, worth $662.6K in total; no superinvestor holds it.
Q1 2026 vs. Q4 2025
How the institutions holding Phio Pharmaceuticals Corp. changed between Q4 2025 and Q1 2026.
All holders in Q1 2026All holders in Q4 2025
| Measure | Q4 2025 | Of which not filed for Q1 2026 | Q1 2026 | Change |
|---|---|---|---|---|
| Holders | 17 | 1 | 24 | +8 |
| Shares | 363.8K | 87.6K | 668.5K | +392.3K (+142.0%) |
| Value | $382.3K | $92.0K | $815.0K | +$524.6K (+180.7%) |
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.
New holders (14)
Institutions that held Phio Pharmaceuticals Corp. at the end of Q1 2026 but not at the end of Q4 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Jane Street Group, LLC | 119,189 | $145.4K | 0.00% |
| Vanguard Capital Management LLC | 79,853 | $97.4K | 0.00% |
| Vanguard Fiduciary Trust Co | 38,169 | $46.6K | 0.00% |
| HRT Financial LP | 34,732 | $42.0K | 0.00% |
| Scientech Research LLC | 30,032 | $36.6K | 0.03% |
| XTX Topco Ltd | 24,868 | $30.3K | 0.00% |
| Gsa Capital Partners LLP | 19,864 | $24.0K | 0.00% |
| Two Sigma Securities, LLC | 15,224 | $18.6K | 0.00% |
| Tower Research Capital LLC (TRC) | 7,620 | $9.30K | 0.00% |
| Advisor Group Holdings, Inc. | 2,000 | $2.44K | 0.00% |
| Spire Wealth Management | 2,000 | $2.44K | 0.00% |
| NBC Securities, Inc. | 1,074 | $1.31K | 0.00% |
| Citigroup Inc | 1,025 | $1.25K | 0.00% |
| Caitong International Asset Management Co., Ltd | 3 | $4 | 0.00% |
Sold out (6)
Institutions that held Phio Pharmaceuticals Corp. at the end of Q4 2025 and filed for Q1 2026 without it.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| DRW Securities, LLC | 22,636 | $23.8K |
| Susquehanna International Group, LLP | 20,091 | $21.1K |
| StoneX Group Inc. | 11,828 | $12.4K |
| Robertson Stephens Wealth Management, LLC | 10,800 | $11.3K |
| Virtu Financial LLC | 10,214 | $11.0K |
| Bank of America Corp | 1,413 | $1.48K |
Not filed for Q1 2026 yet (1)
Institutions that held Phio Pharmaceuticals Corp. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2025 | Value, Q4 2025 |
|---|---|---|
| Vanguard Group Inc | 87,628 | $92.0K |