Clearside Biomedical, Inc.
CLSDDelisted Dec 8, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001539029
Clearside Biomedical, Inc. was delisted on Dec 8, 2025; its insiders filed their last Form 4 on Feb 24, 2025; 26 institutions reported holding it in 13F filings for Q3 2025, worth $2.18M in total; no superinvestor held it.
Key figures
- Insider buys
- 0
- Open market, last 90 days
- Insider sells
- 0
- Open market, last 90 days
- 13F holders
- 26
- Q3 2025, −18 vs. previous quarter
- 13F value
- $2.18M
- Reported value at the end of Q3 2025
- Superinvestors holding
- 0
- At the end of Q3 2025
Superinvestors holding CLSD, Q3 2025
No superinvestor reported holding CLSD at the end of Q3 2025.
Latest insider trades
Open-market purchases and sales by Clearside Biomedical, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Feb 24, 2025 (view filing) | Feb 24 | Same day | Thorp ClayDirector | PPurchase | +15.0K | $0.92 | +$13.8K | +9.3%176.1K after | |
| Nov 4, 2024 (view filing) | Nov 1 | 3 days | Chong Ngai Hang VictorChief Medical Officer | PPurchase | +36.5K | $1.00 | +$36.5K | +57.5%100.0K after | |
| Jun 24, 2024 (view filing) | Jun 24 | Same day | Chong Ngai Hang VictorChief Medical Officer | PPurchase | +23.5K | $1.06 | +$24.9K | +58.8%63.5K after | |
| May 15, 2024 (view filing) | May 15 | Same day | Yerxa Benjamin RDirector | PPurchase | +7.81K | $1.31 | +$10.2K | +77.0%18.0K after | |
| Apr 19, 2024 (view filing) | Apr 17-18 | 2 days | Gibney Anthony SDirector | PPurchase | +100.0K | $1.30 | +$129.7K | New position100.0K after | 2 lots |
| Mar 20, 2024 (view filing) | Mar 20 | Same day | Chong Ngai Hang VictorCHIEF MEDICAL OFFICER | PPurchase | +30.0K | $1.60 | +$48.0K | New position30.0K after | |
| Feb 9, 2024 (view filing) | Feb 7 | 2 days | Whitmore Bradford T10% Owner | PPurchase | +444.4K | $1.35 | +$600.0K | +11.0%4.50M after | |
| Feb 9, 2024 (view filing) | Feb 7 | 2 days | Whitmore Bradford T10% Owner | PPurchase | +444.4K | $0.00 | $0 | –444.4K after | Derivative |
| Jan 19, 2024 (view filing) | Jan 19 | Same day | Lasezkay George MCEO | SSale | −18.0K | $1.27 | −$22.9K | −3.7%466.6K after | |
| Jan 19, 2024 (view filing) | Jan 19 | Same day | Deignan Charles A.Chief Financial Officer | SSale | −12.9K | $1.28 | −$16.5K | −3.2%384.7K after |
Top 10 13F holders, Q3 2025
The largest institutional positions in Clearside Biomedical, Inc. at the end of Q3 2025; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 221,968 | $881.2K | 0.00% | −2,236−1.0% | ReducedConverted for a 1-for-15 split |
| Carmignac Gestion | 100,556 | $399.2K | 0.01% | 00.0% | UnchangedConverted for a 1-for-15 split |
| Geode Capital Management, LLC | 52,741 | $209.4K | 0.00% | 00.0% | UnchangedConverted for a 1-for-15 split |
| BlackRock, Inc. | 41,677 | $165.5K | 0.00% | 00.0% | UnchangedConverted for a 1-for-15 split |
| Renaissance Technologies LLC | 25,247 | $100.2K | 0.00% | −7,859−23.7% | ReducedConverted for a 1-for-15 split |
| Apollon Wealth Management, LLC | 23,586 | $93.6K | 0.00% | +23,586 | New |
| First Manhattan Co | 22,846 | $90.7K | 0.00% | 00.0% | UnchangedConverted for a 1-for-15 split |
| State Street Corp | 16,387 | $65.1K | 0.00% | −1,297−7.3% | ReducedConverted for a 1-for-15 split |
| Gsa Capital Partners LLP | 12,885 | $51.0K | 0.00% | −22,683−63.8% | ReducedConverted for a 1-for-15 split |
| Northern Trust Corp | 11,032 | $43.8K | 0.00% | 00.0% | UnchangedConverted for a 1-for-15 split |
Holders of 5% or more of CLSD
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Clearside Biomedical, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Whitmore Bradford T | 13G/A | 8.60%6.52M shares | – | Mar 4, 20251 filing | Mar 4, 2025 | SEC |
| Wiles Stephen Boyd | 13G | 5.20%4.00M shares | New | Apr 1, 20251 filing | Apr 1, 2025 | SEC |