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Donald A. McCunniff

CIK 1355849 · EVP and CHRO · last filed 2026-03-03

Donald A. McCunniff is an EVP and CHRO who has filed 46 SEC Form 4 insider transactions across 2 companies since 2008. The most recent filing, for MLM, was dated Mar 3, 2026. Across all open-market trades the lifetime net is −$4.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.9M 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

$4.87M

Companies

2

Total Filings

46

Lifetime Open-Market Net

-$4.14M

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
MLM EVP and CHRO 7,518 $504.92 $3.80M -$4.14M 40 2026-03-03
AWI Sr. VP-Human Resources 6,377 $168.94 $1.08M $0 5 2009-09-01

Recent Filings

46 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
2026-03-03 MLM Grant (A) +2,960 $0 EDGAR
2026-02-25 MLM Tax (F) −192 -$131.3K EDGAR
2026-02-24 MLM Grant (A) +1,277 $0 EDGAR
2025-12-17 MLM Tax (F) −50 -$31.5K EDGAR
2025-03-06 MLM Mixed — -$426.8K EDGAR
2025-02-26 MLM Notice (144) −1,332 -$653.1K EDGAR
2025-02-25 MLM Grant (A) +1,543 $0 EDGAR
2019-05-07 MLM Mixed −695 -$864.3K EDGAR
2019-04-01 MLM Tax (F) −288 -$57.0K EDGAR
2019-02-28 MLM Sell (S) −2,223 -$421.9K EDGAR
Showing 1–10 of 46
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.