Clearwater Paper Corporation
US ˙ NYSE ˙ US18538R1032

SecurityCLW / Clearwater Paper Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership128,381 shares
Latest Disclosed Value $ 2,233,831
Sei Investments Co reports 108.29% increase in ownership of CLW / Clearwater Paper Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 128,381 shares of Clearwater Paper Corporation (US:CLW) valued at $2,233,829 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 61,637 shares of Clearwater Paper Corporation. This represents a change in shares of 108.29% during the quarter. The current value of the position is $1,975,784 USD.

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)
2026-02-13 2025-12-31 13F CLEARWATER PAPER COM 18538R103 128,381 66,744 108.29 2,234 74.59
2025-11-13 2025-09-30 13F CLEARWATER PAPER COM 18538R103 61,637 -5,941 -8.79 1,280 -30.49 0.0014
2025-08-14 2025-06-30 13F CLEARWATER PAPER COM 18538R103 67,578 -3,582 -5.03 1,841 1.94 0.0021
2025-05-14 2025-03-31 13F/A-1 CLEARWATER PAPER COM 18538R103 71,160 3,639 5.39 1,805 -10.20 0.0023
2025-05-13 2025-03-31 13F CLEARWATER PAPER COM 18538R103 67,521 0 2,010 0.0022
2025-02-11 2024-12-31 13F CLEARWATER PAPER COM 18538R103 67,521 67,521 2,010 0.0026
2024-11-12 2024-09-30 13F CLEARWATER PAPER COM 18538R103 0 -47,991 -100.00 0 -100.00
2024-08-13 2024-06-30 13F CLEARWATER PAPER COM 18538R103 47,991 8,533 21.63 2,326 34.84 0.0033
2024-05-07 2024-03-31 13F CLEARWATER PAPER COM 18538R103 39,458 6,178 18.56 1,726 43.51 0.0025
2024-02-14 2023-12-31 13F CLEARWATER PAPER COM 18538R103 33,280 704 2.16 1,202 1.86 0.0019
2023-11-14 2023-09-30 13F CLEARWATER PAPER COM 18538R103 32,576 -21,982 -40.29 1,181 -30.91 0.0021
2023-08-11 2023-06-30 13F CLEARWATER PAPER COM 18538R103 54,558 -5,175 -8.66 1,709 -14.43 0.0030
2023-05-12 2023-03-31 13F CLEARWATER PAPER COM 18538R103 59,733 5,231 9.60 1,996 -3.11 0.0037
2023-02-10 2022-12-31 13F CLEARWATER PAPER COM 18538R103 54,502 24,140 79.51 2,061 80.39 0.0046
2022-11-14 2022-09-30 13F CLEARWATER PAPER COM 18538R103 30,362 30,362 1,142 0.0025
2021-02-08 2020-12-31 13F CLEARWATER PAPER COM 18538R103 0 -29,736 -100.00 0 -100.00
2020-12-04 2020-09-30 13F/A-1 CLEARWATER PAPER COM 18538R103 29,736 29,736 1,128 0.0033
2020-11-06 2020-09-30 13F CLEARWATER PAPER COM 18538R103 29,736 29,736 1,128 2,715.9732
2019-08-14 2019-06-30 13F CLEARWATER PAPER COM 18538R103 0 -10,599 -100.00 0 -100.00
2019-05-15 2019-03-31 13F CLEARWATER PAPER COM 18538R103 10,599 9,634 998.34 206 610.34 0.0007
2019-02-13 2018-12-31 13F CLEARWATER PAPER COM 18538R103 965 0 0.00 29 0.00 0.0001
2018-11-08 2018-09-30 13F CLEARWATER PAPER COM 18538R103 965 343 55.14 29 107.14 0.0001
2018-08-03 2018-06-30 13F CLEARWATER PAPER COM 18538R103 622 306 96.84 14 16.67 0.0000
2018-05-11 2018-03-31 13F CLEARWATER PAPER COM 18538R103 316 316 12 0.0000
2017-11-06 2017-09-30 13F CLEARWATER PAPER COM 18538R103 0 -23,903 -100.00 0 -100.00
2017-07-31 2017-06-30 13F CLEARWATER PAPER COM 18538R103 23,903 3,599 17.73 1,117 -1.76 0.0045
2017-05-05 2017-03-31 13F CLEARWATER PAPER COM 18538R103 20,304 0 0.00 1,137 -14.58 0.0050
2017-02-02 2016-12-31 13F CLEARWATER PAPER COM 18538R103 20,304 6,734 49.62 1,331 51.59 0.0064
2016-11-04 2016-09-30 13F CLEARWATER PAPER COM 18538R103 13,570 3,282 31.90 878 30.46 0.0045
2016-08-11 2016-06-30 13F CLEARWATER PAPER COM 18538R103 10,288 -2,107 -17.00 673 11.98 0.0040
2016-05-10 2016-03-31 13F/A-1 CLEARWATER PAPER COM 18538R103 12,395 778 6.70 601 13.61 0.0037
2016-02-03 2015-12-31 13F CLEARWATER PAPER COM 18538R103 11,617 -27,739 -70.48 529 -71.54 0.0032
2015-11-02 2015-09-30 13F/A-1 CLEARWATER PAPER COM 18538R103 39,356 3,177 8.78 1,859 -10.32 0.0171
2015-10-30 2015-09-30 13F CLEARWATER PAPER COM 18538R103 39,356 1,860
2015-08-07 2015-06-30 13F/A-1 CLEARWATER PAPER COM 18538R103 36,179 -5,212 -12.59 2,073 -23.31 0.0187
2015-08-04 2015-06-30 13F CLEARWATER PAPER COM 18538R103 36,179 36,179 2,073 0.0187
2015-05-14 2015-03-31 13F/A-1 CLEARWATER PAPER COM 18538R103 41,391 -3,021 -6.80 2,703 -11.20 0.0235
2015-05-01 2015-03-31 13F CLEARWATER PAPER COM 18538R103 41,391 2,703
2015-02-10 2014-12-31 13F CLEARWATER PAPER COM 18538R103 44,412 44,412 3,044 0.0269
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.