Ellen F Siminoff

CIK 1386430 · Executive Chair · last filed 2026-07-06

Ellen F Siminoff is an Executive Chair who has filed 241 SEC Form 4 insider transactions across 8 companies since 2007. The most recent filing, for TTWO, was dated Jul 6, 2026. Across all open-market trades the lifetime net is −$4.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.0M 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.

Disclosed Exposure

$4.00M

Companies

8

Total Filings

241

Lifetime Open-Market Net

-$4.52M

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
TTWO	Director	10,404	$247.93	$2.58M	-$1.23M	29	2026-07-06
CMRC	Executive Chair	431,319	$3.15	$1.36M	$294.1K	2	2026-02-19
Commerce.com, Inc. (BIGC) Delisted	Director	331,319	$4.78	$1.58M	$170.6K	27	2025-03-10
ZYNGA INC (ZNGA) Delisted	Director	0	$8.18	$0	-$1.94M	98	2022-05-24
SolarWinds, Inc. (SWI) Delisted	Director	11,164	$18.49	$206.4K	-$1.31M	23	2015-10-30
PRTS	Director	10,623	$5.44	$57.8K	$106.8K	16	2013-07-09
JOURNAL COMMUNICATIONS INC (JRN) Delisted	Director	—	—	—	$0	30	2013-05-09
GLU MOBILE INC (GLUU) Delisted	Director	0	$12.50	$0	-$606.5K	5	2011-05-27

Recent Filings

241 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
2026-07-06	TTWO	Mixed	−230	-$84.3K	EDGAR
2026-07-01	TTWO	Notice (144)	−501	-$125.2K	EDGAR
2026-07-01	TTWO	Notice (144)	−501	-$125.2K	EDGAR
2026-04-16	TTWO	Sell (S)	−413	-$85.8K	EDGAR
2026-04-02	TTWO	Grant (A)	+116	$0	EDGAR
2026-03-17	TTWO	Sell (S)	−413	-$86.5K	EDGAR
2026-03-16	TTWO	Notice (144)	−286	-$59.7K	EDGAR
2026-03-16	TTWO	Notice (144)	−540	-$112.6K	EDGAR
2026-02-19	CMRC	Buy (P)	+100,000	$294.1K	EDGAR
2026-02-19	TTWO	Sell (S)	−413	-$82.6K	EDGAR

Showing 1–10 of 241

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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.