Weyerhaeuser Company
MX ˙ BMV ˙ US9621661043
SecurityMX:WY / Weyerhaeuser Company
InstitutionM&t Bank Corp
Latest Disclosed Ownership238,772 shares
Latest Disclosed Value $ 5,833,201
M&t Bank Corp ownership in WY / Weyerhaeuser Company

On May 12, 2026 - M&t Bank Corp filed a 13F-HR form disclosing ownership of 238,772 shares of Weyerhaeuser Company (MX:WY) valued at $5,833,201 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on January 30, 2026 disclosing 270,965 shares of Weyerhaeuser Company. This represents a change in shares of -11.88% during the quarter.

M&t Bank Corp has a history of taking positions in derivatives of the underlying security (WY) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 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.

MX:WY / Weyerhaeuser Company 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)
2026-05-12 2026-03-31 13F WEYERHAEUSER COM NEW 962166104 238,772 -32,193 -11.88 5,833 -9.11 0.0047
2026-01-30 2025-12-31 13F/A-1 WEYERHAEUSER CO MTN BE COM NEW 962166104 270,965 4,157 1.56 6,419 -2.96 0.0206
2026-01-28 2025-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 510,938 244,130 55,217 0.0329
2025-11-14 2025-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 266,808 -5,968 -2.19 6,614 -5.62 0.0222
2025-08-13 2025-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 272,776 26,282 10.66 7,008 -2.90 0.0241
2025-04-30 2025-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 246,494 2,058 0.84 7,217 4.90 0.0263
2025-02-06 2024-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 244,436 -129 -0.05 6,881 -16.92 0.0231
2024-11-19 2024-09-30 13F/A-1 WEYERHAEUSER CO MTN BE COM NEW 962166104 244,565 183 0.07 8,281 19.37 0.0272
2024-11-15 2024-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 244,565 183 8,281 0.0050
2024-07-31 2024-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 244,382 -1,984 -0.81 6,938 -21.59 0.0237
2024-05-07 2024-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 246,366 1,940 0.79 8,847 4.11 0.0308
2024-02-06 2023-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 244,426 127 0.05 8,499 13.46 0.0312
2023-11-02 2023-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 244,299 -9,770 -3.85 7,490 -12.02 0.0299
2023-08-09 2023-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 254,069 -2,219 -0.87 8,514 10.24 0.0318
2023-05-11 2023-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 256,288 8,046 3.24 7,723 0.35 0.0299
2023-02-13 2022-12-31 13F/A-1 WEYERHAEUSER CO MTN BE COM NEW 962166104 248,242 47,513 23.67 7,696 34.25 0.0310
2023-02-13 2022-12-31 13F WEWORK CL A 962166104 94,032 -106,697 2,327 0.0094
2022-11-17 2022-09-30 13F/A-1 WEYERHAEUSER CO MTN BE COM NEW 962166104 200,729 -1,140 -0.56 5,732 -6.40 0.0255
2022-11-14 2022-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 200,729 -1,140 5,631 0.0048
2022-08-05 2022-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 201,869 23,908 13.43 6,124 -9.19 0.0288
2022-05-09 2022-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 177,961 -51,198 -22.34 6,744 -28.54 0.0298
2022-02-07 2021-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 229,159 3,260 1.44 9,437 17.45 0.0396
2021-10-28 2021-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 225,899 218 0.10 8,035 3.44 0.0362
2021-08-13 2021-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 225,681 -2,493 -1.09 7,768 -4.37 0.0341
2021-05-06 2021-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 228,174 -4,386 -1.89 8,123 4.18 0.0351
2021-02-12 2020-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 232,560 -18,824 -7.49 7,797 8.76 0.0342
2020-11-06 2020-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 251,384 -15,060 -5.65 7,169 19.78 0.0352
2020-07-29 2020-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 266,444 -11,152 -4.02 5,985 27.21 0.0321
2020-05-14 2020-03-31 13F WEYERHAEUSER COM 962166104 277,596 -13,865 -4.76 4,705 -46.55 0.0278
2020-02-07 2019-12-31 13F WEYERHAEUSER COM 962166104 291,461 -1,719 -0.59 8,803 8.40 0.0413
2019-11-12 2019-09-30 13F WEYERHAEUSER COM 962166104 293,180 -4,591 -1.54 8,121 3.53 0.0405
2019-08-12 2019-06-30 13F WEYERHAEUSER COM 962166104 297,771 -10,733 -3.48 7,844 -3.47 0.0410
2019-05-15 2019-03-31 13F WEYERHAEUSER COM 962166104 308,504 6,030 1.99 8,126 22.90 0.0425
2019-02-01 2018-12-31 13F WEYERHAEUSER COM 962166104 302,474 -894,823 -74.74 6,612 -82.89 0.0380
2018-11-09 2018-09-30 13F WEYERHAEUSER COM 962166104 1,197,297 -16,122 -1.33 38,637 -12.67 0.1933
2018-08-10 2018-06-30 13F WEYERHAEUSER COM 962166104 1,213,419 -15,112 -1.23 44,242 2.89 0.2381
2018-05-04 2018-03-31 13F WEYERHAEUSER COM 962166104 1,228,531 -11,185 -0.90 42,999 -1.63 0.2310
2018-02-06 2017-12-31 13F WEYERHAEUSER COM 962166104 1,239,716 6,158 0.50 43,712 4.13 0.2291
2017-11-13 2017-09-30 13F WEYERHAEUSER COM 962166104 1,233,558 30,212 2.51 41,978 4.14 0.2277
2017-08-11 2017-06-30 13F WEYERHAEUSER COM 962166104 1,203,346 45,000 3.88 40,311 2.41 0.2380
2017-05-10 2017-03-31 13F WEYERHAEUSER COM 962166104 1,158,346 45,520 4.09 39,361 17.55 0.2377
2017-02-14 2016-12-31 13F WEYERHAEUSER COM 962166104 1,112,826 26,115 2.40 33,485 -3.53 0.2086
2016-11-04 2016-09-30 13F WEYERHAEUSER COM 962166104 1,086,711 1,075,461 9,559.65 34,709 6,021.52 0.2212
2016-08-04 2016-06-30 13F WEYERHAEUSER PREF CONV SER A 962166872 11,250 2,953 35.59 567 33.73 0.0038
2016-08-04 2016-06-30 13F WEYERHAEUSER COM 962166104 1,053,811 47,972 31,371 0.2111
2016-05-11 2016-03-31 13F WEYERHAEUSER PREF CONV SER A 962166872 8,297 -164,452 -95.20 424 -91.81 0.0029
2016-05-11 2016-03-31 13F WEYERHAEUSER COM 962166104 1,005,839 833,090 31,162 0.2109
2016-02-12 2015-12-31 13F WEYERHAEUSER COM 962166104 172,749 16,312 10.43 5,179 21.09 0.0344
2015-11-13 2015-09-30 13F WEYERHAEUSER COM 962166104 156,437 1,490 0.96 4,277 -12.39 0.0291
2015-08-14 2015-06-30 13F WEYERHAEUSER COM 962166104 154,947 4,947 3.30 4,882 -1.83 0.0294
2015-05-14 2015-03-31 13F WEYERHAEUSER COM 962166104 150,000 -703 -0.47 4,973 -8.04 0.0310
2015-02-12 2014-12-31 13F WEYERHAEUSER COM 962166104 150,703 2,693 1.82 5,408 14.70 0.0339
2014-11-14 2014-09-30 13F WEYERHAEUSER COM 962166104 148,010 139,943 1,734.76 4,715 1,665.92 0.0330
2014-08-13 2014-06-30 13F WEYERHAEUSER CO COM COMMON 962166104 8,067 0 0.00 267 12.66 0.0112
2014-05-14 2014-03-31 13F WEYERHAEUSER CO COM COMMON STOCK 962166104 8,067 180 2.28 237 -4.82 0.0098
2014-02-12 2013-12-31 13F WEYERHAEUSER CO COM COMMON STOCK 962166104 7,887 0 0.00 249 10.18 0.0104
2013-11-13 2013-09-30 13F WEYERHAEUSER CO COM COMMON STOCK 962166104 7,887 -2,048 -20.61 226 -20.14 0.0108
2013-07-30 2013-06-30 13F WEYERHAEUSER CO COM COMMON STOCK 962166104 9,935 9,935 283 0.0137
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
(%)
2026-05-12 2026-03-31 13F WEYERHAEUSER CO MTN BE COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-01-28 2025-12-31 13F WEYERHAEUSER CO MTN BE COM NEW Call 32 4 n/a n/a n/a
2021-05-05 2021-03-31 13F WEYERHAEUSER CO MTN BE COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-12 2020-12-31 13F WEYERHAEUSER CO MTN BE COM NEW Call 6 0.00 3 50.00 n/a n/a n/a
2020-11-06 2020-09-30 13F WEYERHAEUSER CO MTN BE COM NEW Call 6 0.00 2 100.00 n/a n/a n/a
2020-07-29 2020-06-30 13F WEYERHAEUSER CO MTN BE COM NEW Call 6 0.00 1 n/a n/a n/a
2020-05-14 2020-03-31 13F WEYERHAEUSER COM Call 6 0.00 0 -100.00 n/a n/a n/a
2020-02-07 2019-12-31 13F WEYERHAEUSER COM Call 6 0.00 2 100.00 n/a n/a n/a
2019-11-12 2019-09-30 13F WEYERHAEUSER COM Call 6 0.00 1 0.00 n/a n/a n/a
2019-08-12 2019-06-30 13F WEYERHAEUSER COM Call 6 1 n/a n/a n/a
2019-05-15 2019-03-31 13F WEYERHAEUSER COM Call 0 -100.00 0 n/a n/a n/a
2019-02-01 2018-12-31 13F WEYERHAEUSER COM Call 1 -50.00 0 n/a n/a n/a
2018-11-09 2018-09-30 13F WEYERHAEUSER COM Call 2 0.00 0 n/a n/a n/a
2018-08-10 2018-06-30 13F WEYERHAEUSER COM Call 2 -50.00 0 n/a n/a n/a
2018-05-04 2018-03-31 13F WEYERHAEUSER COM Call 4 33.33 0 n/a n/a n/a
2018-02-06 2017-12-31 13F WEYERHAEUSER COM Call 3 0 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.