Clearside Biomedical, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Thorp Clay | — | Purchase | 15,000 | $0.92 | $13,800 | 176,141 | Feb 24, 2025 |
| Chong Ngai Hang Victor | Chief Medical Officer | Purchase | 36,500 | $1.00 | $36,500 | 100,000 | Nov 1, 2024 |
| Chong Ngai Hang Victor | Chief Medical Officer | Purchase | 23,500 | $1.06 | $24,910 | 63,500 | Jun 24, 2024 |
| YERXA BENJAMIN R | — | Purchase | 7,813 | $1.31 | $10,235 | 17,957 | May 15, 2024 |
| Gibney Anthony S | — | Purchase | 93,290 | $1.30 | $121,277 | 100,000 | Apr 17, 2024 |
| Chong Ngai Hang Victor | CHIEF MEDICAL OFFICER | Purchase | 30,000 | $1.60 | $48,000 | 30,000 | Mar 20, 2024 |
| WHITMORE BRADFORD T | — | Purchase | 444,444 | $1.35 | $599,999 | 4,495,034 | Feb 7, 2024 |
| LASEZKAY GEORGE M | CEO | Sale | 18,000 | $1.27 | $22,860 | 466,577 | Jan 19, 2024 |
| Deignan Charles A. | Chief Financial Officer | Sale | 12,900 | $1.28 | $16,512 | 384,662 | Jan 19, 2024 |
| WHITMORE BRADFORD T | — | Purchase | 70,812 | $0.73 | $51,693 | 3,986,224 | Oct 30, 2023 |
| Hutson Nancy J | — | Purchase | 10,000 | $0.86 | $8,600 | 93,000 | Oct 3, 2023 |
| Thorp Clay | — | Purchase | 10,000 | $0.86 | $8,600 | 40,522 | Sep 25, 2023 |
| Humphries William D. | — | Option Exercise | 22,727 | $0.40 | $9,091 | 51,040 | Sep 22, 2023 |
| Deignan Charles A. | Chief Financial Officer | Option Exercise | 34,090 | $0.40 | $13,636 | 397,562 | Sep 13, 2023 |
| Ciulla Thomas | Chief Medical Officer | Sale | 13,700 | $1.47 | $20,139 | 291,890 | Jan 20, 2023 |
| LASEZKAY GEORGE M | CEO | Sale | 20,030 | $1.46 | $29,244 | 484,577 | Jan 19, 2023 |
| Deignan Charles A. | Chief Financial Officer | Sale | 14,030 | $1.50 | $21,045 | 363,472 | Jan 19, 2023 |
| Ciulla Thomas | Chief Medical Officer | Sale | 2,170 | $1.62 | $3,515 | 305,590 | Jan 10, 2023 |
| Thorp Clay | — | Purchase | 14,000 | $1.02 | $14,280 | 30,522 | Dec 21, 2022 |
| Deignan Charles A. | Chief Financial Officer | Option Exercise | 23,636 | $0.40 | $9,454 | 377,502 | Dec 20, 2022 |
| Thorp Clay | — | Other | 8,522 | — | — | 16,522 | Dec 15, 2022 |
| Hutson Nancy J | — | Purchase | 30,000 | $1.33 | $39,900 | 83,000 | Nov 17, 2022 |
| Ciulla Thomas | Chief Medical Officer | Award / Grant | 5,000 | $0.95 | $4,750 | 307,760 | Jun 30, 2022 |
| Deignan Charles A. | Chief Financial Officer | Award / Grant | 43,750 | — | — | 360,199 | Jan 19, 2022 |
| LASEZKAY GEORGE M | CEO | Award / Grant | 97,500 | — | — | 515,407 | Jan 19, 2022 |
| Ciulla Thomas | Chief Medical Officer | Award / Grant | 46,250 | — | — | 301,810 | Jan 18, 2022 |
| Deignan Charles A. | Chief Financial Officer | Award / Grant | 46,250 | — | — | 362,699 | Jan 18, 2022 |
| Ciulla Thomas | Chief Medical Officer | Sale | 9,050 | $2.13 | $19,277 | 295,260 | Jan 18, 2022 |
| LASEZKAY GEORGE M | CEO | Sale | 5,100 | $2.46 | $12,546 | 417,907 | Jan 11, 2022 |
| Humphries William D. | — | Option Exercise | 22,727 | $0.15 | $3,409 | 28,313 | Jan 10, 2022 |
| Hutson Nancy J | — | Option Exercise | 25,000 | $2.00 | $50,000 | 38,000 | Oct 29, 2021 |
| Ciulla Thomas | Chief Medical Officer | Sale | 2,560 | $6.40 | $16,384 | 255,560 | Sep 21, 2021 |
| LASEZKAY GEORGE M | CEO | Sale | 3,525 | $6.46 | $22,772 | 423,007 | Sep 21, 2021 |
| Deignan Charles A. | Chief Financial Officer | Sale | 2,800 | $6.41 | $17,948 | 316,449 | Sep 21, 2021 |
| WHITMORE BRADFORD T | — | Sale | 213,203 | $6.89 | $1,468,969 | 2,415,056 | Aug 31, 2021 |
| Hutson Nancy J | — | Purchase | 3,000 | $5.68 | $17,040 | 13,000 | Aug 16, 2021 |
| LASEZKAY GEORGE M | CEO | Sale | 3,707 | $4.38 | $16,237 | 426,532 | Jun 21, 2021 |
| Deignan Charles A. | Chief Financial Officer | Sale | 2,938 | $4.37 | $12,839 | 319,249 | Jun 21, 2021 |
| LASEZKAY GEORGE M | CEO | Sale | 3,370 | $2.82 | $9,503 | 430,239 | Mar 19, 2021 |
| Hutson Nancy J | — | Purchase | 5,000 | $3.11 | $15,550 | 10,000 | Mar 12, 2021 |
| LASEZKAY GEORGE M | CEO | Sale | 6,000 | $3.37 | $20,220 | 433,609 | Mar 2, 2021 |
| Thorp Clay | — | Sale | 32,873 | $4.43 | $145,627 | 3,433,521 | Feb 10, 2021 |
| Thorp Clay | — | Sale | 32,873 | $4.43 | $145,627 | 4,951,547 | Feb 10, 2021 |
| LASEZKAY GEORGE M | CEO | Award / Grant | 140,250 | — | — | 439,609 | Jan 18, 2021 |
| Deignan Charles A. | Chief Financial Officer | Award / Grant | 96,360 | — | — | 322,187 | Jan 18, 2021 |
| Ciulla Thomas | Chief Medical Officer | Award / Grant | 103,125 | — | — | 253,122 | Jan 18, 2021 |
| WHITMORE BRADFORD T | — | Purchase | 350,750 | $2.85 | $999,638 | 3,529,845 | Jan 6, 2021 |
| WHITMORE BRADFORD T | — | Purchase | 51,195 | $1.95 | $99,830 | 3,179,095 | Dec 24, 2020 |
| LASEZKAY GEORGE M | CEO | Sale | 3,330 | $2.07 | $6,893 | 299,359 | Dec 21, 2020 |
| WHITMORE BRADFORD T | — | Purchase | 53,900 | $1.95 | $105,105 | 3,127,900 | Dec 2, 2020 |