Insider transactions

John Wendell Thompson

CIK 1207433 · Chairman and CEO · last filed 2026-10-02

"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
$153.57M
Companies
5
Total Filings
285
Lifetime Open-Market Net
-$16.25M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

RBRK price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
C/O RUBRIK, INC.
3495 DEER CREEK ROAD
PALO ALTO, CA 94304
Related Filers
MICROSOFT CORP — 94 joint filings, latest 2023-12-15
NISOURCE INC/DE — 16 joint filings, latest 2005-09-01
ILLUMINA, INC. — 7 joint filings, latest 2022-05-27
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
RBRK Director 26,562 $114.94 $3.05M -$18.16M 28 2026-10-02
MSFT Director 28,345 $532.78 $15.10M $1.00M 91 2023-12-15
ILMN Director 10,162 $269.38 $2.74M $0 6 2022-05-27
UPS Director 17,135 $98.75 $1.69M $904.0K 14 2013-05-03
STX Director 193,608 $676.54 $130.98M $0 4 2010-10-29

Recent Filings · Page 19 of 29

285 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
2010-09-22 — Mixed −10,000 -$560.9K
2010-09-15 — Mixed −10,000 -$559.0K
2010-07-28 — Mixed −10,000 -$558.8K
2010-07-22 — Mixed −10,000 -$557.3K
2010-07-15 — Mixed −10,000 -$557.2K
2010-06-23 — Mixed −10,000 -$577.9K
2010-06-17 — Mixed −10,000 -$557.7K
2010-06-03 — Tax (F) −17,894 -$247.7K
2010-05-19 — Mixed −10,000 -$639.6K
2010-05-12 — Mixed −10,000 -$641.6K
Showing 181–190 of 285
Page 19 of 29
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.