Phio Pharmaceuticals Corp.
PHIO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001533040
In the last 90 days, Phio Pharmaceuticals Corp. insiders filed 9 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.
Holders of 5% or more of PHIO
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Phio Pharmaceuticals Corp., largest stake first. The change is against the holder's previous filing.
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
23 Schedule 13D and 13G filings on Phio Pharmaceuticals Corp., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 17, 20262:49 PM ET | CVI Investments, Inc.and 1 other | 13G/A | 9.90%1.19M shares | 0.00 ppfrom 9.90% | Dec 31, 2025 | SEC |
| Feb 13, 20264:46 PM ET | Intracoastal Capital, LLCand 2 others | 13G/A | 9.10%1.14M shares | +2.10 ppfrom 7.00% | Dec 31, 2025 | SEC |
| Dec 11, 20254:30 PM ET | Orca Capital AG | 13G/A | 4.90%538.7K shares | −1.60 ppfrom 6.50%Below 5% | Dec 8, 2025 | SEC |
| Nov 24, 20254:05 PM ET | Orca Capital AG | 13G/A | 6.50%700.4K shares | +1.60 ppfrom 4.90% | Nov 20, 2025 | SEC |
| Nov 12, 20256:10 AM ET | Orca Capital AG | 13G/A | 4.90%409.3K shares | −4.90 ppfrom 9.80%Below 5% | Nov 7, 2025 | SEC |
| Nov 10, 20256:36 PM ET | CVI Investments, Inc.and 1 other | 13G | 9.90%733.3K shares | +5.00 ppfrom 4.90% | Nov 3, 2025 | SEC |
| Nov 7, 20255:27 PM ET | Intracoastal Capital, LLCand 2 others | 13G/A | 7.00%430.0K shares | −2.99 ppfrom 9.99% | Sep 30, 2025 | SEC |
| Nov 6, 20255:00 PM ET | Orca Capital AG | 13G/A | 9.80%800.0K shares | +4.90 ppfrom 4.90% | Nov 3, 2025 | SEC |
| Aug 7, 20254:05 PM ET | Orca Capital AG | 13G/A | 4.90%280.6K shares | −5.00 ppfrom 9.90%Below 5% | Aug 4, 2025 | SEC |
| Feb 7, 20254:09 PM ET | CVI Investments, Inc.and 1 other | 13G/A | 4.90%91.0K shares | −2.40 ppfrom 7.30%Below 5% | Dec 31, 2024 | SEC |
| Jan 23, 20253:45 PM ET | Orca Capital AG | 13G | 9.90%515.0K shares | New | Dec 19, 2024 | SEC |
| Jan 17, 20254:44 PM ET | Intracoastal Capital, LLCand 2 others | 13G | 9.99%530.2K shares | +5.00 ppfrom 4.99% | Jan 13, 2025 | SEC |
| Dec 27, 20245:05 PM ET | Intracoastal Capital, LLCand 2 others | 13G | 4.99%91.0K shares | –Below 5% | Dec 19, 2024 | SEC |
| Dec 26, 20242:19 PM ET | CVI Investments, Inc.and 1 other | 13G | 7.30%109.3K shares | – | Dec 19, 2024 | SEC |
| Nov 13, 2024 | Intracoastal Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 6, 2024 | Intracoastal Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 8, 2023 | Intracoastal Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Feb 11, 2022 | Intracoastal Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Jan 20, 2022 | Empery Asset Management, LP | 13G/AOld format | – | – | – | SEC |
| Feb 19, 2021 | Empery Asset Management, LP | 13GOld format | – | New | – | SEC |
| Feb 16, 2021 | CVI Investments, Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 29, 2021 | Intracoastal Capital, LLC | 13G/AOld format | – | – | – | SEC |
| Jan 5, 2021 | Sabby Management, LLC | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Phio Pharmaceuticals Corp. shares.
No Form 144 notices for Phio Pharmaceuticals Corp. are on file.