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Irving Tan

CIK 1729518 · Chief Executive Officer · last filed 2026-09-02

Irving Tan is a Chief Executive Officer who has filed 99 SEC Form 4 insider transactions across 4 companies since 2018. The most recent filing, for WDC, was dated Sep 2, 2026. Across all open-market trades the lifetime net is −$36.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $196.1M across reported positions. 35 SEC filings were submitted jointly with WESTERN DIGITAL CORP.

"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.

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Disclosed Exposure

$196.12M

Companies

4

Total Filings

99

Lifetime Open-Market Net

-$36.81M

Filer Profile

Reported Address
C/O WESTERN DIGITAL CORPORATION
5601 GREAT OAKS PARKWAY
SAN JOSE, CA 95119
Related Filers
WESTERN DIGITAL CORP — 35 joint filings, latest 2026-08-27
CISCO SYSTEMS, INC. — 31 joint filings, latest 2020-11-24
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
WDC Chief Executive Officer 379,147 $467.46 $177.24M -$26.46M 29 2026-09-02
SWP Director 6,033 $28.57 $172.4K $0 13 2024-03-21
STANLEY BLACK & DECKER, INC. (SWT) Delisted Director 3,432 $51.06 $175.2K $0 21 2022-09-22
CSCO EVP, Chief of Operations 171,379 $109.20 $18.71M -$10.35M 30 2020-11-24

Recent Filings

99 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
2026-09-02 WDC Mixed — $0 EDGAR
2026-08-27 WDC Mixed +12,832 -$1.77M EDGAR
2026-08-24 WDC Mixed −651 -$317.9K EDGAR
2026-08-12 WDC Sell (S) −20,000 -$8.90M EDGAR
2026-08-11 WDC Notice (144) −20,000 -$8.90M EDGAR
2026-06-22 WDC Mixed −1,038 -$813.4K EDGAR
2026-05-27 WDC Mixed −449 -$232.0K EDGAR
2026-05-22 WDC Mixed −697 -$352.2K EDGAR
2026-05-05 WDC Sell (S) −20,000 -$8.24M EDGAR
2026-05-01 WDC Notice (144) −20,000 -$8.24M EDGAR
Showing 1–10 of 99
Page 1 of 10
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.