Rogers Corporation
US ˙ NYSE ˙ US7751331015

SecurityROG / Rogers Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership32,582 shares
Latest Disclosed Value $ 2,983,418
Sei Investments Co reports 7.55% decrease in ownership of ROG / Rogers Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 32,582 shares of Rogers Corporation (US:ROG) valued at $2,983,534 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 35,244 shares of Rogers Corporation. This represents a change in shares of -7.55% during the quarter. The current value of the position is $4,822,136 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 ROGERS COM 775133101 32,582 -2,662 -7.55 2,983 5.22 0.0029
2025-11-13 2025-09-30 13F ROGERS COM 775133101 35,244 1,436 4.25 2,835 22.46 0.0030
2025-08-14 2025-06-30 13F ROGERS COM 775133101 33,808 8,098 31.50 2,315 33.35 0.0027
2025-05-14 2025-03-31 13F/A-1 ROGERS COM 775133101 25,710 -17,658 -40.72 1,736 -60.60 0.0022
2025-05-13 2025-03-31 13F ROGERS COM 775133101 43,389 21 4,321 0.0047
2025-02-11 2024-12-31 13F ROGERS COM 775133101 43,368 3,177 7.90 4,407 -2.99 0.0057
2024-11-12 2024-09-30 13F ROGERS COM 775133101 40,191 -167 -0.41 4,542 -6.68 0.0059
2024-08-13 2024-06-30 13F ROGERS COM 775133101 40,358 3,667 9.99 4,867 11.78 0.0069
2024-05-07 2024-03-31 13F ROGERS COM 775133101 36,691 -2,346 -6.01 4,355 -15.54 0.0064
2024-02-14 2023-12-31 13F ROGERS COM 775133101 39,037 751 1.96 5,156 2.42 0.0083
2023-11-14 2023-09-30 13F ROGERS COM 775133101 38,286 4,419 13.05 5,033 -8.22 0.0090
2023-08-11 2023-06-30 13F ROGERS COM 775133101 33,867 4,647 15.90 5,484 14.85 0.0096
2023-05-12 2023-03-31 13F ROGERS COM 775133101 29,220 16,239 125.10 4,775 208.26 0.0089
2023-02-10 2022-12-31 13F ROGERS COM 775133101 12,981 522 4.19 1,549 -48.61 0.0034
2022-11-14 2022-09-30 13F ROGERS COM 775133101 12,459 -807 -6.08 3,014 -14.37 0.0067
2022-08-15 2022-06-30 13F ROGERS COM 775133101 13,266 -41,781 -75.90 3,520 -76.45 0.0076
2022-05-13 2022-03-31 13F ROGERS COM 775133101 55,047 -915 -1.64 14,948 -2.12 0.0300
2022-02-14 2021-12-31 13F ROGERS COM 775133101 55,962 -1,487 -2.59 15,271 42.31 0.0286
2021-11-12 2021-09-30 13F ROGERS COM 775133101 57,449 -11,584 -16.78 10,731 -22.62 0.0225
2021-08-06 2021-06-30 13F ROGERS COM 775133101 69,033 1,178 1.74 13,868 10.55 0.0308
2021-05-12 2021-03-31 13F ROGERS COM 775133101 67,855 -3,754 -5.24 12,545 12.43 0.0316
2021-02-08 2020-12-31 13F ROGERS COM 775133101 71,609 5,635 8.54 11,158 73.45 0.0288
2020-12-04 2020-09-30 13F/A-1 ROGERS COM 775133101 65,974 685 1.05 6,433 -21.37 0.0186
2020-11-06 2020-09-30 13F ROGERS COM 775133101 66,166 877 6,452 15,534.9815
2020-08-17 2020-06-30 13F/A-1 ROGERS COM 775133101 65,289 -8,375 -11.37 8,181 17.90 0.0254
2020-08-11 2020-06-30 13F ROGERS COM 775133101 100,751 27,087 12,612 34,210.7213
2020-05-14 2020-03-31 13F ROGERS COM 775133101 73,664 -26,792 -26.67 6,939 -44.87 0.0255
2020-02-06 2019-12-31 13F ROGERS COM 775133101 100,456 5,824 6.15 12,586 -3.04 0.0375
2019-11-12 2019-09-30 13F ROGERS COM 775133101 94,632 7,912 9.12 12,980 -13.10 0.0332
2019-08-14 2019-06-30 13F ROGERS COM 775133101 86,720 3,450 4.14 14,936 12.89 0.0488
2019-05-15 2019-03-31 13F ROGERS COM 775133101 83,270 18,454 28.47 13,230 38.55 0.0444
2019-02-13 2018-12-31 13F ROGERS COM 775133101 64,816 0 0.00 9,549 0.00 0.0340
2018-11-08 2018-09-30 13F ROGERS COM 775133101 64,816 7,211 12.52 9,549 48.72 0.0346
2018-08-03 2018-06-30 13F ROGERS COM 775133101 57,605 2,436 4.42 6,421 -2.64 0.0218
2018-05-11 2018-03-31 13F ROGERS COM 775133101 55,169 8,621 18.52 6,595 -12.51 0.0253
2018-02-08 2017-12-31 13F ROGERS COM 775133101 46,548 2,907 6.66 7,538 29.61 0.0262
2017-11-06 2017-09-30 13F ROGERS COM 775133101 43,641 28,738 192.83 5,816 259.46 0.0207
2017-07-31 2017-06-30 13F ROGERS COM 775133101 14,903 527 3.67 1,618 31.01 0.0065
2017-05-05 2017-03-31 13F ROGERS COM 775133101 14,376 10,369 258.77 1,235 300.97 0.0054
2017-02-02 2016-12-31 13F ROGERS COM 775133101 4,007 140 3.62 308 29.96 0.0015
2016-11-04 2016-09-30 13F ROGERS COM 775133101 3,867 829 27.29 237 27.42 0.0012
2016-08-11 2016-06-30 13F ROGERS COM 775133101 3,038 3,038 186 0.0011
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.