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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.

Overview All Filings Annual Quarterly Insiders
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