Tatnall Christopher

CIK 1990732 · EVP Global Customer Operations · last filed 2026-05-21

Tatnall Christopher is an EVP Global Customer Operations who has filed 12 SEC Form 4 insider transactions across 1 company since 2023. The most recent filing shows the insider sold $174.6K of ACLS on May 21, 2026. Across all open-market trades the lifetime net is −$174.6K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.5M 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

$4.55M

Companies

1

Total Filings

12

Lifetime Open-Market Net

-$174.6K

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
ACLS EVP Global Customer Operations 27,627 $164.57 $4.55M -$174.6K 12 2026-05-21

Recent Filings

12 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2026-05-21 ACLS Sell (S) −1,166 -$174.6K EDGAR
2026-05-19 ACLS Mixed +5,749 -$195.4K EDGAR
2026-04-21 ACLS Tax (F) −907 -$118.8K EDGAR
2026-03-03 ACLS Tax (F) −1,121 -$97.1K EDGAR
2025-09-17 ACLS Tax (F) −137 -$12.0K EDGAR
2025-05-19 ACLS Mixed +11,781 -$32.3K EDGAR
2025-04-22 ACLS Tax (F) −907 -$41.0K EDGAR
2025-03-04 ACLS Tax (F) −1,146 -$62.8K EDGAR
2024-09-17 ACLS Tax (F) −83 -$8.2K EDGAR
2024-05-16 ACLS Mixed +5,595 -$11.6K EDGAR
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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.