Home

Thomas William Burns

CIK 1644557 · CHAIRMAN & CEO · last filed 2026-06-29

Thomas William Burns is a CHAIRMAN & CEO who has filed 142 SEC Form 4 insider transactions across 3 companies since 2015. The most recent filing shows the insider had shares withheld for taxes covering $578.7K of GKOS on Jun 29, 2026. Across all open-market trades the lifetime net is −$104.7M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $28.7M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Loading insider history…
Disclosed Exposure

$28.74M

Companies

3

Total Filings

142

Lifetime Open-Market Net

-$104.69M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
GKOS CHAIRMAN & CEO 188,967 $151.33 $28.60M -$104.69M 106 2026-06-29
LUNG Director 113,399 $1.25 $141.7K $0 7 2026-06-09
AVEDRO INC (AVDR) Delisted Director — $24.25 — $0 2 2019-06-18

Recent Filings

142 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-06-29 GKOS Tax (F) −4,059 -$578.7K EDGAR
2026-06-09 LUNG Grant (A) +40,000 $0 EDGAR
2026-04-03 GKOS Mixed −9,937 -$1.09M EDGAR
2026-03-27 GKOS Grant (A) +23,564 $0 EDGAR
2026-03-25 GKOS Tax (F) −2,744 -$288.8K EDGAR
2026-03-19 GKOS Tax (F) −2,801 -$277.1K EDGAR
2026-03-17 GKOS Tax (F) −5,212 -$505.7K EDGAR
2026-03-09 GKOS Tax (F) −1,098 -$123.1K EDGAR
2026-02-26 GKOS Tax (F) −4,059 -$483.7K EDGAR
2026-02-10 GKOS Mixed +166,000 $5.13M EDGAR
Showing 1–10 of 142
Page 1 of 15
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.