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CHRISTOPHER A O'HERLIHY

CIK 1504646 · President & CEO · last filed 2026-05-12

CHRISTOPHER A O'HERLIHY is a President & CEO who has filed 47 SEC Form 4 insider transactions across 2 companies since 2010. The most recent filing, for MAS, was dated May 12, 2026. Across all open-market trades the lifetime net is −$57.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $22.0M 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

$21.98M

Companies

2

Total Filings

47

Lifetime Open-Market Net

-$57.95M

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
MAS Director 51,766 $71.94 $3.72M $0 13 2026-05-12
ITW President & CEO 64,100 $284.82 $18.26M -$57.95M 33 2026-02-17

Recent Filings

47 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
2026-05-12 MAS Grant (A) +2,650 $0 EDGAR
2026-02-17 ITW Mixed +4,414 -$779.1K EDGAR
2025-05-13 MAS Grant (A) +2,900 $0 EDGAR
2025-03-11 ITW Mixed — -$7.09M EDGAR
2025-03-07 ITW Notice (144) −48,453 -$13.29M EDGAR
2025-02-18 ITW Mixed +4,454 -$652.3K EDGAR
2024-05-14 MAS Grant (A) +2,490 $0 EDGAR
2024-02-14 ITW Mixed +7,357 -$1.50M EDGAR
2024-02-13 ITW Grant (A) — $0 EDGAR
2023-05-12 MAS Grant (A) +3,040 $0 EDGAR
Showing 1–10 of 47
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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.