🕵️ Clearside Biomedical, Inc. ($CLSDQ)
SEC insider & ownership activity, last 12 months · CIK 1539029 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. 5 red-flag 8-Ks in the window, most recently Bankruptcy (1.03), Dec 19, 2025.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Bradford T. Whitmore | 8.6% | 13G | Mar 4, 2025 | filing ↗ | |
| Whitmore Holdings, LLC | 8.6% | 13G | Mar 4, 2025 | filing ↗ | |
| Bradford Whitmore Trust | 8.6% | 13G | Mar 4, 2025 | filing ↗ | |
| Stephen Boyd Wiles | 5.2% | 13G | Apr 1, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Bankruptcy (1.03) | Dec 19, 2025 | filing ↗ |
| Other events (8.01) | Dec 19, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 19, 2025 | filing ↗ |
| Delisting notice (3.01) | Dec 8, 2025 | filing ↗ |
| Bankruptcy (1.03) | Nov 23, 2025 | filing ↗ |
| Delisting notice (3.01) | Nov 23, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Nov 23, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 23, 2025 | filing ↗ |
| Other events (8.01) | Oct 7, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Sep 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 10, 2025 | filing ↗ |
| Charter/bylaw changes (5.03) | Sep 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 10, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 4, 2025 | filing ↗ |
| Delisting notice (3.01) | Aug 28, 2025 | filing ↗ |
| Shareholder vote (5.07) | Aug 28, 2025 | filing ↗ |
| Delisting notice (3.01) | Aug 14, 2025 | filing ↗ |
| Officer/director changes (5.02) | Aug 14, 2025 | filing ↗ |