Home

GARY S GUTHART

CIK 1280628 · Executive Chair of the Board o · last filed 2026-08-12

GARY S GUTHART is an Executive Chair of the Board o who has filed 140 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing shows the insider sold $4.0M of ISRG on Aug 12, 2026. Across all open-market trades the lifetime net is −$409.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $464.2M across reported positions. 12 SEC filings were submitted jointly with ILLUMINA, INC.

"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

$464.23M

Companies

3

Total Filings

140

Lifetime Open-Market Net

-$409.91M

Filer Profile

Reported Address
C/O INTUITIVE SURGICAL INC
1020 KIFER RD
SUNNYVALE, CA 94086
Related Filers
ILLUMINA, INC. — 12 joint filings, latest 2025-05-23
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
ISRG Director 1,256,193 $366.70 $460.65M -$409.91M 104 2026-08-12
ILMN Director 16,430 $218.22 $3.59M $0 10 2025-05-23
AFFYMETRIX INC (AFFX) Delisted Director 0 — — $0 8 2016-04-01

Recent Filings

140 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
2026-08-12 ISRG Sell (S) −10,000 -$4.00M EDGAR
2026-08-11 ISRG Notice (144) −20,095 -$7.90M EDGAR
2026-05-01 ISRG Grant (A) — $0 EDGAR
2026-03-03 ISRG Mixed +14,538 -$7.20M EDGAR
2026-02-27 ISRG Mixed +4,230 -$2.11M EDGAR
2026-02-10 ISRG Mixed +1,327 -$643.6K EDGAR
2026-01-30 ISRG Grant (A) — $0 EDGAR
2026-01-28 ISRG Mixed −1,800 -$10.03M EDGAR
2026-01-27 ISRG Notice (144) −24,500 -$12.99M EDGAR
2026-01-27 ISRG Notice (144) −2,800 -$1.49M EDGAR
Showing 1–10 of 140
Page 1 of 14
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.