# MASCO CORP (MAS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 574599106
Page URL: https://superinvestorclub.com/stock/MAS
Last updated: 2026-08-29T13:48:30.685Z

## Summary

As of the most recent 13F filing period, MASCO CORP (MAS) is held by 4 tracked superinvestors with an aggregate position value of $838.6M representing 08318944163509628608566385 shares.

## Top institutional holders (4)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Bill Nygren](https://superinvestorclub.com/manager/73) | Harris Associates | 8318944 | $676.9M | 0.90% | 2026-06-30 |
| 2 | [John Rogers](https://superinvestorclub.com/manager/76) | Ariel Investments | 1635096 | $133.0M | 1.33% | 2026-06-30 |
| 3 | [Donald Yacktman](https://superinvestorclub.com/manager/13) | Yacktman Asset Management | 286085 | $23.3M | 0.29% | 2026-06-30 |
| 4 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 66385 | $5.4M | 0.02% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-12-31: 2 holders, $686.2M aggregate, 09769194475183 shares
- 2024-03-31: 3 holders, $658.5M aggregate, 07703566463472181325 shares
- 2024-06-30: 4 holders, $579.0M aggregate, 069976621093202458348135471 shares
- 2024-09-30: 4 holders, $672.9M aggregate, 06617159103172331045556766 shares
- 2024-12-31: 3 holders, $558.8M aggregate, 063747951027939296914 shares
- 2025-03-31: 3 holders, $520.1M aggregate, 06270597941986266686 shares
- 2025-06-30: 3 holders, $513.4M aggregate, 07316545401924258206 shares
- 2025-09-30: 4 holders, $570.2M aggregate, 0741119239871225299537662 shares
- 2025-12-31: 3 holders, $770.5M aggregate, 011501911405488233847 shares
- 2026-03-31: 4 holders, $566.9M aggregate, 0859673452342924471824950 shares
- 2026-06-30: 4 holders, $838.6M aggregate, 08318944163509628608566385 shares

## Recent congressional trades (7)

- 2025-10-07: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-08-26: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-08-04: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-04-07: Julie Johnson (Democrat-TX) sale $1,001 - $15,000
- 2025-02-19: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-01-17: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2024-11-12: Ro Khanna (Democrat-CA) sale $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "MASCO CORP (MAS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/MAS), aggregating SEC 13F, Form 4, and congressional disclosures."