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STEPHEN D CHUBB

CIK 1144771 · Chairman and CEO · last filed 2021-02-24

STEPHEN D CHUBB is a Chairman and CEO who has filed 52 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing, for CRL, was dated Feb 24, 2021. Across all open-market trades the lifetime net is −$5.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.3M 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

$9.29M

Companies

2

Total Filings

52

Lifetime Open-Market Net

-$5.47M

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
CRL Director 40,529 $229.29 $9.29M -$5.47M 51 2021-02-24
MZT Holdings, Inc. (MZT) Delisted Chairman and CEO — — — $0 1 2007-04-04

Recent Filings

52 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
2021-02-24 CRL Mixed +2,872 -$747 EDGAR
2020-08-19 CRL Mixed −2,625 -$217.7K EDGAR
2020-05-13 CRL Grant (A) +741 $0 EDGAR
2020-02-28 CRL Mixed +4,706 -$865 EDGAR
2019-05-23 CRL Mixed +997 $0 EDGAR
2019-02-21 CRL Mixed — -$487.1K EDGAR
2018-05-15 CRL Grant (A) +2,004 $0 EDGAR
2018-02-16 CRL Mixed +4,868 -$482 EDGAR
2017-05-16 CRL Grant (A) +2,436 $0 EDGAR
2016-12-05 CRL Mixed +6,146 -$633 EDGAR
Showing 1–10 of 52
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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.