The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 28, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 10 | $182.50 | $2K |
| Aug 28, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 6K | $181.19 | $1.1M |
| Aug 28, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 8K | $180.25 | $1.4M |
| Aug 19, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 3K | — | $0 |
| Aug 19, 2026 | Kliman Gilbert H | Director | Sell(S) | 3K | $190.00 | $475K |
| Aug 19, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 3K | $25.77 | $64K |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 10K | $48.46 | $485K |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 20K | $55.18 | $1.1M |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 20K | $55.18 | $1.1M |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 10K | $48.46 | $485K |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Sell(S) | 28K | $178.89 | $5.0M |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Sell(S) | 32K | $180.49 | $5.8M |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 20K | — | $0 |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 20K | — | $0 |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 10K | — | $0 |
| Aug 11, 2026 | Gilliam Joseph E | PRESIDENT & COO | Option exercise(M) | 10K | — | $0 |
| Aug 7, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 20K | $33.81 | $676K |
| Aug 7, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 20K | $180.13 | $3.6M |
| Aug 7, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 20K | — | $0 |
| Jul 31, 2026 | Wen Leana | Director | Sell(S) | 525 | $167.63 | $88K |
| Jul 16, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Jul 16, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 10K | $160.00 | $1.6M |
| Jul 16, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | — | $0 |
| Jul 9, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Jul 9, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 10K | $155.00 | $1.6M |
| Jul 9, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | — | $0 |
| Jul 6, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Jul 6, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 10K | $150.00 | $1.5M |
| Jul 6, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Jul 1, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 716 | $139.06 | $100K |
| Jun 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Tax withholding(F) | 4K | $142.57 | $579K |
| Jun 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Tax withholding(F) | 1K | $142.57 | $151K |
| Jun 25, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax withholding(F) | 483 | $142.57 | $69K |
| Jun 16, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 2K | $130.68 | $201K |
| May 28, 2026 | Weisner Aimee S | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Kliman Gilbert H | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Stapley Marc | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Foley Mark J | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Hoffmeister David F | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Torres Denice | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Wen Leana | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Wen Leana | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Wen Leana | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Weisner Aimee S | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Weisner Aimee S | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Kliman Gilbert H | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Kliman Gilbert H | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Hoffmeister David F | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Hoffmeister David F | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Stapley Marc | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Stapley Marc | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Foley Mark J | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Foley Mark J | Director | Grant(A) | 3K | — | $0 |
| May 28, 2026 | Torres Denice | Director | Grant(A) | 2K | — | $0 |
| May 28, 2026 | Torres Denice | Director | Grant(A) | 3K | — | $0 |
| May 26, 2026 | Hoffmeister David F | Director | Option exercise(M) | 15K | $24.69 | $370K |
| May 26, 2026 | Hoffmeister David F | Director | Option exercise(M) | 15K | $24.69 | $370K |
| May 14, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 5K | $24.69 | $123K |
| May 14, 2026 | Kliman Gilbert H | Director | Sell(S) | 5K | $140.76 | $704K |
| May 14, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 5K | $24.69 | $123K |
| May 11, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 5K | $24.69 | $123K |
| May 11, 2026 | Kliman Gilbert H | Director | Sell(S) | 5K | $135.00 | $675K |
| May 11, 2026 | Kliman Gilbert H | Director | Option exercise(M) | 5K | $24.69 | $123K |
| May 1, 2026 | Gilliam Joseph E | PRESIDENT & COO | Sell(S) | 20K | $143.54 | $2.8M |
| May 1, 2026 | Wen Leana | Director | Sell(S) | 2K | $143.35 | $244K |
| Apr 30, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Apr 30, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 10K | $140.00 | $1.4M |
| Apr 30, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Option exercise(M) | 10K | $38.68 | $387K |
| Apr 10, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 1K | $116.72 | $144K |
| Apr 10, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 210 | $117.45 | $25K |
| Apr 10, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 614 | $119.35 | $73K |
| Apr 10, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Sell(S) | 32 | $120.23 | $4K |
| Apr 2, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Tax withholding(F) | 2K | $109.60 | $271K |
| Apr 2, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Tax withholding(F) | 7K | $109.60 | $818K |
| Apr 2, 2026 | Gilliam Joseph E | PRESIDENT & COO | Tax withholding(F) | 3K | $109.60 | $347K |
| Apr 2, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax withholding(F) | 1K | $109.60 | $126K |
| Apr 2, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax withholding(F) | 2K | $109.60 | $201K |
| Apr 2, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Tax withholding(F) | 2K | $109.60 | $174K |
| Apr 1, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Gift(G) | 180K | — | $0 |
| Apr 1, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Gift(G) | 180K | — | $0 |
| Mar 31, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Tax withholding(F) | 6K | $109.60 | $635K |
| Mar 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Grant(A) | 9K | — | $0 |
| Mar 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Grant(A) | 14K | — | $0 |
| Mar 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Grant(A) | 6K | — | $0 |
| Mar 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Grant(A) | 18K | — | $0 |
| Mar 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Grant(A) | 37K | — | $0 |
| Mar 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Grant(A) | 22K | — | $0 |
| Mar 25, 2026 | Gilliam Joseph E | PRESIDENT & COO | Grant(A) | 16K | — | $0 |
| Mar 25, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Grant(A) | 12K | — | $0 |
| Mar 25, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Grant(A) | 5K | — | $0 |
| Mar 25, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Grant(A) | 4K | — | $0 |
| Mar 25, 2026 | Navratil Tomas | CHIEF DEVELOPMENT OFFICER | Grant(A) | 13K | — | $0 |
| Mar 25, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Grant(A) | 3K | — | $0 |
| Mar 25, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Sell(S) | 3K | $106.46 | $267K |
| Mar 25, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Grant(A) | 21K | — | $0 |
| Mar 25, 2026 | Thurman Alex R. | SVP & CHIEF FINANCIAL OFFICER | Grant(A) | 8K | — | $0 |
| Mar 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Grant(A) | 19K | $18,933.00as filed | — |
| Mar 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Grant(A) | 98K | $98,474.00as filed | — |
| Mar 25, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Grant(A) | 110K | $110,254.00as filed | — |
| Mar 24, 2026 | Burns Thomas William | CHAIRMAN & CEO, Director | Tax withholding(F) | 3K | $105.23 | $289K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-03. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for GKOS