Masco Corporation
US ˙ NYSE ˙ US5745991068

SecurityMAS / Masco Corporation
InstitutionWalleye Capital LLC
Latest Disclosed Ownership1,092 shares
Latest Disclosed Value $ 65,924
Walleye Capital LLC ownership in MAS / Masco Corporation

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 1,092 shares of Masco Corporation (US:MAS) valued at $65,924 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 23,866 shares of Masco Corporation. This represents a change in shares of -95.42% during the quarter. The current value of the position is $75,796 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (MAS) in the form of stock options. The firm currently holds call options representing 6,400 of underlying shares valued at $386,368 USD and put options representing 3,300 of underlying shares valued at $199,221 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MAS / Masco Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F/A-1 MASCO COM 574599106 1,092 -22,774 -95.42 66 -95.71 0.0003
2026-05-08 2026-03-31 13F MASCO COM 574599106 1,092 -22,774 66 0.0003
2026-02-13 2025-12-31 13F MASCO COM 574599106 23,866 23,866 1,515 0.0046
2025-11-14 2025-09-30 13F MASCO COM 574599106 0 -237,692 -100.00 0 -100.00
2025-08-13 2025-06-30 13F MASCO COM 574599106 237,692 235,456 10,530.23 15,298 9,769.03 0.0594
2025-05-14 2025-03-31 13F MASCO COM 574599106 2,236 -305,597 -99.27 155 -99.31 0.0007
2025-02-13 2024-12-31 13F MASCO COM 574599106 307,833 141,067 84.59 22,339 59.59 0.0546
2024-11-14 2024-09-30 13F MASCO COM 574599106 166,766 49,801 42.58 13,998 79.51 0.0291
2024-08-14 2024-06-30 13F MASCO COM 574599106 116,965 24,507 26.51 7,798 6.92 0.0139
2024-05-15 2024-03-31 13F MASCO COM 574599106 92,458 92,458 7,293 0.0130
2023-08-14 2023-06-30 13F MASCO COM 574599106 0 -160,434 -100.00 0 -100.00
2023-05-15 2023-03-31 13F MASCO COM 574599106 160,434 160,434 7,977 0.1195
2023-02-14 2022-12-31 13F MASCO COM 574599106 0 -11,968 -100.00 0 -100.00
2022-11-14 2022-09-30 13F MASCO COM 574599106 11,968 11,968 559 0.0107
2022-05-27 2022-03-31 13F/A-01 MASCO COM 574599106 0 -70,920 -100.00 0 -100.00
2022-05-16 2022-03-31 13F MASCO COM 574599106 0 -70,920 0
2022-05-27 2021-12-31 13F/A-01 MASCO COM 574599106 70,920 70,920 4,980 0.1547
2022-03-03 2021-12-31 13F MASCO COM 574599106 70,920 70,920 4,980 0.1245
2021-11-15 2021-09-30 13F MASCO COM 574599106 0 -15,812 -100.00 0 -100.00
2021-08-16 2021-06-30 13F MASCO COM 574599106 15,812 15,812 931 0.0317
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A MASCO COM Call 6,400 28.00 386 21.77 n/a n/a n/a
2026-05-08 2026-03-31 13F MASCO COM Call 6,400 386 n/a n/a n/a
2026-02-13 2025-12-31 13F MASCO COM Call 5,000 21.95 317 10.07 n/a n/a n/a
2025-11-14 2025-09-30 13F MASCO COM Call 4,100 -53.41 289 -49.12 n/a n/a n/a
2025-08-13 2025-06-30 13F MASCO COM Call 8,800 83.33 566 69.97 n/a n/a n/a
2025-05-14 2025-03-31 13F MASCO COM Call 4,800 -43.53 334 -45.94 n/a n/a n/a
2025-02-13 2024-12-31 13F MASCO COM Call 8,500 -67.18 617 -71.67 n/a n/a n/a
2024-11-14 2024-09-30 13F MASCO COM Call 25,900 153.92 2,174 219.71 n/a n/a n/a
2024-08-14 2024-06-30 13F MASCO COM Call 10,200 -3.77 680 -18.66 n/a n/a n/a
2024-05-15 2024-03-31 13F MASCO COM Call 10,600 836 n/a n/a n/a
2024-02-14 2023-12-31 13F MASCO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-21 2023-09-30 13F/A MASCO COM Call 25,800 -35.34 1,379 -39.76 n/a n/a n/a
2023-11-14 2023-09-30 13F MASCO COM Call 25,800 1,379 n/a n/a n/a
2023-08-14 2023-06-30 13F MASCO COM Call 39,900 39,800.00 2,289 57,125.00 n/a n/a n/a
2023-05-15 2023-03-31 13F MASCO COM Call 100 5 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A MASCO COM Put 3,300 -37.74 199 -40.77 n/a n/a n/a
2026-05-08 2026-03-31 13F MASCO COM Put 3,300 199 n/a n/a n/a
2026-02-13 2025-12-31 13F MASCO COM Put 5,300 65.62 336 49.33 n/a n/a n/a
2025-11-14 2025-09-30 13F MASCO COM Put 3,200 -67.35 225 -64.29 n/a n/a n/a
2025-08-13 2025-06-30 13F MASCO COM Put 9,800 308.33 631 279.52 n/a n/a n/a
2025-05-14 2025-03-31 13F MASCO COM Put 2,400 -64.71 167 -66.33 n/a n/a n/a
2025-02-13 2024-12-31 13F MASCO COM Put 6,800 -75.97 493 -79.24 n/a n/a n/a
2024-11-14 2024-09-30 13F MASCO COM Put 28,300 106.57 2,376 160.13 n/a n/a n/a
2024-08-14 2024-06-30 13F MASCO COM Put 13,700 110.77 913 78.32 n/a n/a n/a
2024-05-15 2024-03-31 13F MASCO COM Put 6,500 513 n/a n/a n/a
2024-02-14 2023-12-31 13F MASCO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-21 2023-09-30 13F/A MASCO COM Put 6,800 363 n/a n/a n/a
2023-11-14 2023-09-30 13F MASCO COM Put 6,800 363 n/a n/a n/a
2023-08-14 2023-06-30 13F MASCO COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F MASCO COM Put 2,000 99 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.