Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 15 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Feb. 7, 2019 MAS A 5,270 · · 45,692 Direct +13.04% Acquired (price as of 2026-10-05)
Feb. 7, 2019 MAS A 23,880 · · 23,880 Direct · Acquired (price as of 2026-10-05)
Jan. 14, 2019 MAS F 3,097 $32.44 $100,467 40,422 Direct -7.12% Disposed 111.0% (price as of 2026-10-05)
Feb. 9, 2018 MAS A 5,240 · · 43,519 Direct +13.69% Acquired (price as of 2026-10-05)
Feb. 9, 2018 MAS A 15,480 · · 15,480 Direct · Acquired (price as of 2026-10-05)
Jan. 14, 2018 MAS F 3,018 $45.76 $138,104 38,279 Direct -7.31% Disposed 49.6% (price as of 2026-10-05)
Feb. 10, 2017 MAS A 18,020 · · 18,020 Direct · Acquired (price as of 2026-10-05)
Feb. 10, 2017 MAS A 7,530 · · 41,297 Direct +22.30% Acquired (price as of 2026-10-05)
Jan. 14, 2017 MAS F 2,593 $32.05 $83,106 33,767 Direct -7.13% Disposed 113.6% (price as of 2026-10-05)
Feb. 10, 2016 MAS A 21,875 · · 21,875 Direct · Acquired (price as of 2026-10-05)
Feb. 10, 2016 MAS A 9,880 · · 36,360 Direct +37.31% Acquired (price as of 2026-10-05)
Jan. 14, 2016 MAS F 2,011 $24.95 $50,174 26,480 Direct -7.06% Disposed 174.4% (price as of 2026-10-05)
Feb. 11, 2015 MAS A 17,500 · · 42,500 Direct +70.00% Acquired (price as of 2026-10-05)
Feb. 11, 2015 MAS A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-05)
Feb. 11, 2015 MAS A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-05)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 7, 2019 MAS Employee Stock Option Common Stock (23,880) $35.52 Feb. 7, 2029 23,880 Acquired
Feb. 9, 2018 MAS Employee Stock Option Common Stock (15,480) $42.13 Feb. 9, 2028 15,480 Acquired
Feb. 10, 2017 MAS Employee Stock Option Common Stock (18,020) $33.75 Feb. 10, 2027 18,020 Acquired
Feb. 10, 2016 MAS Employee Stock Option Common Stock (21,875) $25.51 Feb. 10, 2026 21,875 Acquired
Feb. 11, 2015 MAS Employee Stock Option Common Stock (17,500) $26.12 Feb. 11, 2025 17,500 Acquired
Feb. 11, 2015 MAS Employee Stock Option Common Stock (25,000) $26.12 Feb. 11, 2025 25,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).