Quarter-end position / Version 1 · published

MASCO CORP.

Reporting manager / owner
ARIEL INVESTMENTS, LLC
Relationship
Associated institution
Record date
2026-03-31
Date meaning
Original Form 13F report period
CUSIP / security class
574599106 / COM
Quantity
523,429 shares
Reported value / amount
$31,599,409
Weight / denominator
0.353688% · Calculated: issuer/class value divided by the complete original reported table; not personal wealth
Quarter-end reported price
Not disclosed; not purchase cost
Derived value per reported unit
60.370001; reported value ÷ quantity, not observed market price
Source-reported activity
Not disclosed
Coverage
Complete original information table grouped by CUSIP and security class
Reviewed by
DeepSeek AI
Published
20 Oct 2026

Original regulatory disclosure; 3 original filing line(s) grouped within this issuer/class. Absence from a disclosed table is not private account verification.

Reporting-entity association

Original filing attribution · 3 line(s)

Reporting manager: ARIEL INVESTMENTS, LLC. 13F HOLDINGS REPORT. These are reported investment-discretion relationships, not proof of beneficial ownership or a personal account. Each original line is counted once, including lines naming multiple managers.

Other included managers: 1 / CHARLES SCHWAB INVESTMENT MANAGEMENT INC · CIK 0000884546; 2 / VANGUARD GROUP INC · CIK 0000102909.

ORIGINAL LINEREPORTED QUANTITY / VALUEOTHER MANAGER / DISCRETIONVOTING AUTHORITY
1253,413 shares$206,043CHARLES SCHWAB INVESTMENT MANAGEMENT INC · CIK 0000884546Original field: 1 · Discretion: OTRSole 0Shared 0 · None 3,413
126112,492 shares$6,791,142VANGUARD GROUP INC · CIK 0000102909Original field: 2 · Discretion: OTRSole 112,492Shared 0 · None 0
127407,524 shares$24,602,224No included manager referencedOriginal field: Not stated · Discretion: SOLESole 273,873Shared 0 · None 133,651

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Sources.

ARIEL INVESTMENTS, LLC — 13F-HR — 2026-03-31 · U.S. SEC EDGAR · Published 14 May 2026 · Collected 20 Oct 2026 · Evidence details ↗

Version history.

Version 1 · published · 20 Oct 2026 · Full review note

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