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MX ˙ BMV ˙ US9621661043
SecurityMX:WY / Weyerhaeuser Company
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership1,310,981 shares
Latest Disclosed Value $ 32,027,266
Renaissance Technologies Llc reports 15.93% decrease in ownership of WY / Weyerhaeuser Company

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 1,310,981 shares of Weyerhaeuser Company (MX:WY) valued at $32,027,266 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 1,559,381 shares of Weyerhaeuser Company. This represents a change in shares of -15.93% during the quarter.

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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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)
2026-05-14 2026-03-31 13F WEYERHAEUSER COM NEW 962166104 1,310,981 -248,400 -15.93 32,027 -13.30 0.0501
2026-02-12 2025-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,559,381 1,559,381 36,942 0.0573
2024-05-13 2024-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 0 -834,081 -100.00 0 -100.00
2024-02-13 2023-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 834,081 184,800 28.46 29 52.63 0.0449
2023-11-14 2023-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 649,281 649,281 20 0.0339
2023-08-11 2023-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 0 -222,900 -100.00 0 -100.00
2023-05-12 2023-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 222,900 -479,640 -68.27 7 -71.43 0.0089
2023-02-13 2022-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 702,540 -768,181 -52.23 22 -99.95 0.0298
2022-11-14 2022-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,470,721 -278,060 -15.90 42,004 -27.48 0.0594
2022-08-12 2022-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,748,781 1,748,781 57,920 0.0686
2022-05-13 2022-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 0 -327,195 -100.00 0 -100.00
2022-02-11 2021-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 327,195 -251,586 -43.47 13,474 -34.55 0.0168
2021-11-12 2021-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 578,781 -834,000 -59.03 20,587 -57.66 0.0266
2021-08-13 2021-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,412,781 -77,000 -5.17 48,628 -8.31 0.0607
2021-05-13 2021-03-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,489,781 -446,000 -23.04 53,036 -18.29 0.0660
2021-02-10 2020-12-31 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,935,781 -10,600 -0.54 64,907 16.93 0.0705
2020-11-13 2020-09-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 1,946,381 1,004,100 106.56 55,511 162.29 0.0554
2020-08-13 2020-06-30 13F WEYERHAEUSER CO MTN BE COM NEW 962166104 942,281 -596,361 -38.76 21,164 -18.85 0.0183
2020-05-14 2020-03-31 13F WEYERHAEUSER COM 962166104 1,538,642 -1,049,698 -40.55 26,080 -66.64 0.0253
2020-02-13 2019-12-31 13F WEYERHAEUSER COM 962166104 2,588,340 -92,400 -3.45 78,168 5.27 0.0601
2019-11-13 2019-09-30 13F WEYERHAEUSER COM 962166104 2,680,740 1,516,200 130.20 74,256 142.08 0.0629
2019-08-12 2019-06-30 13F WEYERHAEUSER COM 962166104 1,164,540 1,027,340 748.79 30,674 748.75 0.0270
2019-05-14 2019-03-31 13F WEYERHAEUSER COM 962166104 137,200 -2,466,581 -94.73 3,614 -93.65 0.0033
2019-02-12 2018-12-31 13F WEYERHAEUSER COM 962166104 2,603,781 1,514,500 139.04 56,919 61.93 0.0623
2018-11-13 2018-09-30 13F WEYERHAEUSER COM 962166104 1,089,281 -1,182,500 -52.05 35,151 -57.56 0.0361
2018-08-13 2018-06-30 13F/A-1 WEYERHAEUSER COM 962166104 2,271,781 2,271,781 108.56 82,829 135.64 0.0903
2018-05-14 2018-03-31 13F WEYERHAEUSER COM 962166104 0 -122,981 -100.00 0 -100.00
2018-02-13 2017-12-31 13F WEYERHAEUSER COM 962166104 122,981 122,981 4,336 0.0048
2017-05-12 2017-03-31 13F WEYERHAEUSER COM 962166104 0 -189,181 -100.00 0 -100.00
2017-02-13 2016-12-31 13F WEYERHAEUSER COM 962166104 189,181 189,181 5,692 0.0090
2016-11-14 2016-09-30 13F WEYERHAEUSER COM 962166104 0 -299,260 -100.00 0 -100.00
2016-08-12 2016-06-30 13F WEYERHAEUSER COM 962166104 299,260 -1,138,260 -79.18 8,909 -80.00 0.0170
2016-05-13 2016-03-31 13F WEYERHAEUSER COM 962166104 1,437,520 1,437,520 380.36 44,534 399.88 0.0847
2016-02-11 2015-12-31 13F WEYERHAEUSER COM 962166104 0 -9,300 -100.00 0 -100.00
2015-11-12 2015-09-30 13F WEYERHAEUSER COM 962166104 9,300 9,300 0.00 254 0.0006
2015-05-13 2015-03-31 13F WEYERHAEUSER COM 962166104 0 -171,600 -100.00 0 -100.00
2015-02-13 2014-12-31 13F WEYERHAEUSER COM 962166104 171,600 -210,063 -55.04 6,159 -49.35 0.0149
2014-11-12 2014-09-30 13F WEYERHAEUSER COM 962166104 381,663 -1,970,530 -83.77 12,160 -84.38 0.0333
2014-08-13 2014-06-30 13F WEYERHAEUSER COM 962166104 2,352,193 2,352,193 77,834 0.1815
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.