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Mary Katherine Lawler

CIK 1435059 · SVP & Chief HR Officer · last filed 2026-06-01

Mary Katherine Lawler is a SVP & Chief HR Officer who has filed 41 SEC Form 4 insider transactions across 3 companies since 2008. The most recent filing, for NX, was dated Jun 1, 2026. Across all open-market trades the lifetime net is −$18.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.1M 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

$9.12M

Companies

3

Total Filings

41

Lifetime Open-Market Net

-$18.43M

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
NX Director — $17.90 — $0 4 2026-06-01
ITW SVP & Chief HR Officer 32,019 $284.95 $9.12M -$18.33M 21 2026-02-17
GATX CORP (GMT) Delisted Exec. VP HR 14,449 — — -$102.0K 13 2014-02-03

Recent Filings

41 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
2026-06-01 NX Grant (A) — $0 EDGAR
2026-02-27 NX Grant (A) — $0 EDGAR
2026-02-17 ITW Mixed +1,526 -$362.4K EDGAR
2026-02-10 ITW Mixed — -$2.22M EDGAR
2026-02-06 ITW Notice (144) −17,279 -$5.04M EDGAR
2025-12-08 NX Grant (A) — $0 EDGAR
2025-11-04 NX Grant (A) — $0 EDGAR
2025-02-18 ITW Mixed +1,904 -$210.2K EDGAR
2024-11-08 ITW Mixed — -$1.69M EDGAR
2024-11-06 ITW Notice (144) −11,647 -$3.18M EDGAR
Showing 1–10 of 41
Page 1 of 5
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.