GLAUKOS CORP (GKOS) — insider trading
Health Care · NYSE
GLAUKOS CORP (GKOS) has 86 reported SEC Form 4 insider transactions in our data, including 36 open-market sales among the most recent 86 (latest 2026-10-05).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-10-05 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 312 | $165.60 | $51.7K | Form 4 |
| 2026-10-05 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 327 | $164.78 | $53.9K | Form 4 |
| 2026-10-05 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 888 | $163.93 | $145.6K | Form 4 |
| 2026-09-25 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 1,083 | $154.88 | $167.7K | Form 4 |
| 2026-09-25 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 229 | $154.24 | $35.3K | Form 4 |
| 2026-09-25 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 136 | $152.71 | $20.8K | Form 4 |
| 2026-09-25 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 167 | $151.70 | $25.3K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 4 | $172.00 | $688 | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 234 | $170.95 | $40.0K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 120 | $168.38 | $20.2K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 460 | $167.32 | $77.0K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 191 | $166.20 | $31.7K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 345 | $164.60 | $56.8K | Form 4 |
| 2026-09-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 103 | $163.20 | $16.8K | Form 4 |
| 2026-08-28 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 10 | $182.50 | $1.8K | Form 4 |
| 2026-08-28 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 6,091 | $181.19 | $1.10M | Form 4 |
| 2026-08-28 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 7,643 | $180.25 | $1.38M | Form 4 |
| 2026-08-19 | Kliman Gilbert H | Director | Option exercise / conversion (derivative) | 2,500 | — | $0 | Form 4 |
| 2026-08-19 | Kliman Gilbert H | Director | Open-market sale | 2,500 | $190.00 | $475.0K | Form 4 |
| 2026-08-19 | Kliman Gilbert H | Director | Option exercise / conversion | 2,500 | $25.77 | $64.4K | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion (derivative) | 20,000 | — | $0 | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion (derivative) | 20,000 | — | $0 | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Open-market sale | 32,037 | $180.49 | $5.78M | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Open-market sale | 27,963 | $178.89 | $5.00M | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion | 10,000 | $48.46 | $484.6K | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion | 20,000 | $55.18 | $1.10M | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion | 20,000 | $55.18 | $1.10M | Form 4 |
| 2026-08-11 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Option exercise / conversion | 10,000 | $48.46 | $484.6K | Form 4 |
| 2026-08-07 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion (derivative) | 20,000 | — | $0 | Form 4 |
| 2026-08-07 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Open-market sale | 20,000 | $180.13 | $3.60M | Form 4 |
| 2026-08-07 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion | 20,000 | $33.81 | $676.2K | Form 4 |
| 2026-07-31 | WEN LEANA | Director | Open-market sale | 525 | $167.63 | $88.0K | Form 4 |
| 2026-07-16 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-07-16 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Open-market sale | 10,000 | $160.00 | $1.60M | Form 4 |
| 2026-07-16 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-07-09 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion (derivative) | 10,000 | — | $0 | Form 4 |
| 2026-07-09 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Open-market sale | 10,000 | $155.00 | $1.55M | Form 4 |
| 2026-07-09 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-07-06 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion (derivative) | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-07-06 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Open-market sale | 10,000 | $150.00 | $1.50M | Form 4 |
| 2026-07-06 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-07-01 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 716 | $139.06 | $99.6K | Form 4 |
| 2026-06-25 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Shares withheld for taxes / exercise cost | 483 | $142.57 | $68.9K | Form 4 |
| 2026-06-25 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Shares withheld for taxes / exercise cost | 1,056 | $142.57 | $150.6K | Form 4 |
| 2026-06-25 | Burns Thomas William | Director, Officer (CHAIRMAN & CEO) | Shares withheld for taxes / exercise cost | 4,059 | $142.57 | $578.7K | Form 4 |
| 2026-06-16 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 1,537 | $130.68 | $200.9K | Form 4 |
| 2026-05-28 | Torres Denice | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | Hoffmeister David F | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | Kliman Gilbert H | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | WEISNER AIMEE S | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | Stapley Marc | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | WEN LEANA | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | Foley Mark J | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4/A |
| 2026-05-28 | Stapley Marc | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | Stapley Marc | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | Kliman Gilbert H | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | Kliman Gilbert H | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | Hoffmeister David F | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | Hoffmeister David F | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | Foley Mark J | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | Foley Mark J | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | Torres Denice | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | Torres Denice | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | WEISNER AIMEE S | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | WEISNER AIMEE S | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-28 | WEN LEANA | Director | Grant / award / vesting (derivative) | 2,987 | — | $0 | Form 4 |
| 2026-05-28 | WEN LEANA | Director | Grant / award / vesting | 1,878 | — | $0 | Form 4 |
| 2026-05-26 | Hoffmeister David F | Director | Option exercise / conversion (derivative) | 15,000 | $24.69 | $370.4K | Form 4 |
| 2026-05-26 | Hoffmeister David F | Director | Option exercise / conversion | 15,000 | $24.69 | $370.4K | Form 4 |
| 2026-05-14 | Kliman Gilbert H | Director | Option exercise / conversion (derivative) | 5,000 | $24.69 | $123.5K | Form 4 |
| 2026-05-14 | Kliman Gilbert H | Director | Open-market sale | 5,000 | $140.76 | $703.8K | Form 4 |
| 2026-05-14 | Kliman Gilbert H | Director | Option exercise / conversion | 5,000 | $24.69 | $123.5K | Form 4 |
| 2026-05-11 | Kliman Gilbert H | Director | Option exercise / conversion (derivative) | 5,000 | $24.69 | $123.5K | Form 4 |
| 2026-05-11 | Kliman Gilbert H | Director | Open-market sale | 5,000 | $135.00 | $675.0K | Form 4 |
| 2026-05-11 | Kliman Gilbert H | Director | Option exercise / conversion | 5,000 | $24.69 | $123.5K | Form 4 |
| 2026-05-01 | WEN LEANA | Director | Open-market sale | 1,700 | $143.35 | $243.7K | Form 4 |
| 2026-05-01 | Gilliam Joseph E | Officer (PRESIDENT & COO) | Open-market sale | 19,573 | $143.54 | $2.81M | Form 4 |
| 2026-04-30 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion (derivative) | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-04-30 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Open-market sale | 10,000 | $140.00 | $1.40M | Form 4 |
| 2026-04-30 | Thurman Alex R. | Officer (SVP & CHIEF FINANCIAL OFFICER) | Option exercise / conversion | 10,000 | $38.68 | $386.8K | Form 4 |
| 2026-04-10 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 32 | $120.23 | $3.8K | Form 4 |
| 2026-04-10 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 614 | $119.35 | $73.3K | Form 4 |
| 2026-04-10 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 210 | $117.45 | $24.7K | Form 4 |
| 2026-04-10 | Navratil Tomas | Officer (CHIEF DEVELOPMENT OFFICER) | Open-market sale | 1,237 | $116.72 | $144.4K | Form 4 |
Ask the chat about GKOS's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: GLAUKOS CORP (GKOS).
Last updated 2026-10-05 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.