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Kaitlin M. Kestenberg-Messina

CIK 2017423 · COO and SVP, Compliance · last filed 2026-07-28

Kaitlin M. Kestenberg-Messina is a COO and SVP, Compliance who has filed 20 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing shows the insider had shares withheld for taxes covering $26.6K of ADMA on Jul 28, 2026. Across all open-market trades the lifetime net is −$565.9K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.4M 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.

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Disclosed Exposure

$4.39M

Companies

1

Total Filings

20

Lifetime Open-Market Net

-$565.9K

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
ADMA COO and SVP, Compliance 443,061 $9.90 $4.39M -$565.9K 18 2026-07-28

Recent Filings

20 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
2026-07-28 ADMA Tax (F) −3,177 -$26.6K EDGAR
2026-04-03 ADMA Tax (F) −20,362 -$185.5K EDGAR
2026-03-10 ADMA Mixed −105,560 -$345.5K EDGAR
2026-03-09 ADMA Notice (144) −10,096 -$155.4K EDGAR
2026-02-23 ADMA Tax (F) −8,161 -$133.2K EDGAR
2026-02-11 ADMA Grant (A) +91,631 $0 EDGAR
2025-08-01 ADMA Mixed +1,292 -$7 EDGAR
2025-07-28 ADMA Tax (F) −3,027 -$52.4K EDGAR
2025-04-02 ADMA Tax (F) −18,920 -$367.4K EDGAR
2025-03-10 ADMA Tax (F) −12,816 -$217.2K EDGAR
Showing 1–10 of 20
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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.