Thomas William Burns

CIK 1644557 · View on SEC EDGAR ↗

Insider

First SEC filing: June 24, 2015 · Latest: June 9, 2026

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 69 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

69 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 26, 2020 GKOS S 10b5-1 13,458 $39.72 $534,552 305,889 Direct -4.21% Disposed 371.7% (price as of 2026-08-19)
May 26, 2020 GKOS S 10b5-1 193,989 $39.19 $7,602,429 319,347 Direct -37.79% Disposed 378.0% (price as of 2026-08-19)
May 20, 2020 GKOS S 10b5-1 400 $38.05 $15,220 305,889 Direct -0.13% Disposed 392.4% (price as of 2026-08-19)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 24, 2022 GKOS Stock Option (Right to Buy) Common Stock (42,078) $55.18 March 24, 2032 42,078 Acquired
March 24, 2022 GKOS Stock Option (Right to Buy) Common Stock (42,993) $55.18 March 24, 2032 42,993 Acquired
March 24, 2022 GKOS Stock Option (Right to Buy) Common Stock (12,381) $39.10 March 12, 2030 12,381 Acquired
Aug. 6, 2021 GKOS Stock Options (Right to Buy) Common Stock (20,000) $7.28 July 10, 2024 20,000 Disposed
Aug. 6, 2021 GKOS Stock Options (Right to Buy) Common Stock (10,880) $4.22 April 25, 2023 10,880 Disposed
Aug. 6, 2021 GKOS Stock Options (Right to Buy) Common Stock (256,000) $4.22 Jan. 29, 2023 256,000 Disposed
March 18, 2021 GKOS Stock Options (Right to Buy) Common Stock (16,074) $39.10 March 12, 2030 16,074 Acquired
May 26, 2020 GKOS Stock Option (Right to Buy) Common Stock (68,847) $3.98 April 28, 2021 68,847 Disposed
May 26, 2020 GKOS Stock Option (Right to Buy) Common Stock (138,600) $3.98 Jan. 27, 2021 138,600 Disposed
May 20, 2020 GKOS Stock Option (Right to Buy) Common Stock (200) $3.98 April 28, 2021 200 Disposed
May 20, 2020 GKOS Stock Option (Right to Buy) Common Stock (200) $3.98 Jan. 27, 2021 200 Disposed
March 12, 2020 GKOS Stock Option (Right to Buy) Common Stock (65,170) $39.10 March 12, 2030 65,170 Acquired
Feb. 28, 2020 GKOS Stock Option (Right to Buy) Common Stock (3,034) $34.88 Nov. 1, 2020 3,034 Disposed
Feb. 28, 2020 GKOS Stock Option (Right to Buy) Common Stock (40,682) $10.11 Nov. 1, 2020 40,682 Disposed
Feb. 28, 2020 GKOS Stock Option (Right to Buy) Common Stock (80,000) $3.98 Jan. 27, 2021 80,000 Disposed
Feb. 28, 2020 GKOS Stock Option (Right to Buy) Common Stock (88,880) $3.98 Jan. 27, 2021 88,880 Disposed
Dec. 20, 2019 GKOS Stock Option (Right to Buy) Common Stock (10,000) $3.98 Jan. 27, 2021 10,000 Disposed
Dec. 9, 2019 GKOS Stock Option (Right to Buy) Common Stock (3,583) $3.70 July 13, 2022 3,583 Disposed
Nov. 21, 2019 GKOS Stock Option (Right to Buy) Common Stock (3,034) $34.88 Nov. 1, 2020 3,034 Acquired
Nov. 21, 2019 GKOS Stock Option (Right to Buy) Common Stock (40,682) $10.11 Nov. 1, 2020 40,682 Acquired
March 14, 2019 GKOS Stock Option (Right to Buy) Common Stock (50,000) $69.30 March 14, 2029 50,000 Acquired
June 30, 2015 GKOS Series D Convertible Preferred Stock Common Stock (65,359) — — 65,359 Disposed
June 30, 2015 GKOS Series B Convertible Preferred Stock Common Stock (100,000) — — 100,000 Disposed
June 30, 2015 GKOS Series B Convertible Preferred Stock Common Stock (100,000) — — 100,000 Disposed
June 30, 2015 GKOS Series B Convertible Preferred Stock Common Stock (200,000) — — 200,000 Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 18 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
June 24, 2015 GKOS Common Stock 238,107 Indirect
June 24, 2015 GKOS Common Stock 120,000 Indirect
June 24, 2015 GKOS Common Stock 341,892 Indirect
June 24, 2015 GKOS Series B Convertible Preferred Stock→ Common Stock (200,000) 200,000 Indirect
June 24, 2015 GKOS Series B Convertible Preferred Stock→ Common Stock (100,000) 100,000 Indirect
June 24, 2015 GKOS Series B Convertible Preferred Stock→ Common Stock (100,000) 100,000 Indirect
June 24, 2015 GKOS Series D Convertible Preferred Stock→ Common Stock (65,359) 65,359 Indirect
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (100,000) 100,000 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (170,640) 170,640 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (19,480) 19,480 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (170,640) 170,640 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (19,040) 19,040 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (328,000) 328,000 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (69,047) 69,047 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (3,583) 3,583 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (256,000) 256,000 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (10,880) 10,880 Direct
June 24, 2015 GKOS Stock option (right to buy)→ Common Stock (540,000) 540,000 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

GKOS

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2021 $702,000 — $5,299,920 — $1,247,524 — $10,700 $7,260,144
2020 $608,400 $160,250 $2,524,400 — $374,166 — $1,014 $6,019,242
2019 $643,750 — $3,416,322 — — — $5,488 $5,716,560

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.