Mark Shteiman

CIK 2072237 · Chief Product Officer · last filed 2026-06-16

Mark Shteiman is a Chief Product Officer who has filed 10 SEC Form 4 insider transactions across 1 company since 2026. The most recent filing shows the insider sold $15.0K of ALLT on Jun 16, 2026. Across all open-market trades the lifetime net is −$155.4K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.7M 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.

Disclosed Exposure

$1.70M

Companies

1

Total Filings

10

Lifetime Open-Market Net

-$155.4K

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
ALLT	Chief Product Officer	212,000	$8.02	$1.70M	-$155.4K	4	2026-06-16

Recent Filings

10 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
2026-06-16	ALLT	Sell (S)	−2,000	-$15.0K	EDGAR
2026-06-16	ALLT	Notice (144)	−2,000	-$14.4K	EDGAR
2026-05-26	ALLT	Sell (S)	−11,000	-$82.4K	EDGAR
2026-05-26	ALLT	Notice (144)	−6,000	-$44.4K	EDGAR
2026-05-22	ALLT	Notice (144)	−5,000	-$36.2K	EDGAR
2026-05-20	ALLT	Sell (S)	−5,000	-$36.6K	EDGAR
2026-05-20	ALLT	Notice (144)	−5,000	-$35.9K	EDGAR
2026-05-19	ALLT	Sell (S)	−3,000	-$21.4K	EDGAR
2025-11-25	ALLT	Notice (144)	−10,000	-$93.1K	EDGAR
2025-06-12	ALLT	Notice (144)	−15,000	-$124.2K	EDGAR

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.