Janus Henderson Group Plc ownership in ROG / Rogers Corporation

Rogers Corporation

US ˙ NYSE ˙ US7751331015

Security	ROG / Rogers Corporation
Institution	Janus Henderson Group Plc
Latest Disclosed Ownership	817,543 shares
Ownership	4.40%

2021-02-11 - Janus Henderson Group Plc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 817,543 shares of Rogers Corporation (US:ROG). This represents 4.4 percent ownership of the company. In their previous filing dated 2020-02-13 , Janus Henderson Group Plc had reported owning 1,190,374 shares, indicating a decrease of -31.32 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2021-02-11	2021-02-11	13G/A	1,190,374	817,543	-31.32	4.40	-31.25
2020-02-13	2020-02-13	13G/A	1,138,641	1,190,374	4.54	6.40	3.23
2019-02-12	2019-02-12	13G		1,138,641		6.20

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-18	2026-03-31	13F/A-1	ROGERS	COM	775133101	7,886	0	0.00	845	16.90	0.0001
2026-05-15	2026-03-31	13F	ROGERS	COM	775133101	7,886	0	0.00	845	16.90	0.0002
2026-02-17	2025-12-31	13F	ROGERS	COM	775133101	7,886	0	0.00	722	13.88	0.0003
2025-11-14	2025-09-30	13F	ROGERS	COM	775133101	7,886	0	0.00	635	17.41	0.0003
2025-08-14	2025-06-30	13F	ROGERS	COM	775133101	7,886	0	0.00	541	1.31	0.0003
2025-05-15	2025-03-31	13F	ROGERS	COM	775133101	7,886	0	0.00	534	-33.54	0.0003
2025-02-14	2024-12-31	13F	ROGERS	COM	775133101	7,886	0	0.00	803	-9.99	0.0004
2024-11-14	2024-09-30	13F	ROGERS	COM	775133101	7,886	-90,691	-92.00	892	-92.51	0.0005
2024-08-14	2024-06-30	13F	ROGERS	COM	775133101	98,577	22,052	28.82	11,888	30.90	0.0064
2024-05-15	2024-03-31	13F	ROGERS	COM	775133101	76,525	-25,843	-25.25	9,082	-32.82	0.0050
2024-02-14	2023-12-31	13F	ROGERS	COM	775133101	102,368	-43,349	-29.75	13,519	-29.43	0.0081
2023-11-14	2023-09-30	13F	ROGERS	COM	775133101	145,717	-101	-0.07	19,157	-18.87	0.0125
2023-08-14	2023-06-30	13F	ROGERS	COM	775133101	145,818	-11	-0.01	23,614	-0.92	0.0147
2023-05-15	2023-03-31	13F	ROGERS	COM	775133101	145,829	4,771	3.38	23,832	41.58	0.0157
2023-02-14	2022-12-31	13F	ROGERS	COM	775133101	141,058	137,560	3,932.53	16,834	1,885.02	0.0120
2022-11-14	2022-09-30	13F	ROGERS	COM	775133101	3,498	-361	-9.35	848	-15.87	0.0006
2022-08-15	2022-06-30	13F	ROGERS	COM	775133101	3,859	-72,514	-94.95	1,008	-95.14	0.0007
2022-05-16	2022-03-31	13F	ROGERS	COM	775133101	76,373	-221,429	-74.35	20,751	-74.48	0.0100
2022-02-14	2021-12-31	13F	ROGERS	COM	775133101	297,802	-683,379	-69.65	81,300	-55.57	0.0339
2021-11-16	2021-09-30	13F	ROGERS	COM	775133101	981,181	77,810	8.61	182,971	0.87	0.0800
2021-08-16	2021-06-30	13F	ROGERS	COM	775133101	903,371	130,289	16.85	181,397	24.67	0.0776
2021-05-17	2021-03-31	13F	ROGERS	COM	775133101	773,082	-44,461	-5.44	145,502	14.61	0.0664
2021-02-16	2020-12-31	13F	ROGERS	COM	775133101	817,543	39,213	5.04	126,956	66.34	0.0590
2020-11-16	2020-09-30	13F	ROGERS	COM	775133101	778,330	-126,011	-13.93	76,323	-32.27	0.0398
2020-08-14	2020-06-30	13F	ROGERS	COM	775133101	904,341	113,484	14.35	112,681	50.90	0.0633
2020-05-14	2020-03-31	13F	ROGERS	COM	775133101	790,857	-391,431	-33.11	74,673	-49.36	0.0514
2020-02-18	2019-12-31	13F	ROGERS	COM	775133101	1,182,288	-1,877	-0.16	147,467	-8.91	0.0755
2019-11-14	2019-09-30	13F	ROGERS	COM	775133101	1,184,165	128,789	12.20	161,887	-11.12	0.0877
2019-07-31	2019-06-30	13F	ROGERS	COM	775133101	1,055,376	-40,622	-3.71	182,137	4.60	0.0992
2019-04-30	2019-03-31	13F	ROGERS	COM	775133101	1,095,998	-42,643	-3.75	174,132	54.38	0.0965
2019-02-06	2018-12-31	13F	ROGERS	COM	775133101	1,138,641	106,145	10.28	112,794	-25.85	0.0719
2018-11-09	2018-09-30	13F	ROGERS	COM	775133101	1,032,496	72,603	7.56	152,107	42.17	0.0813
2018-08-10	2018-06-30	13F	ROGERS	COM	775133101	959,893	531,945	124.30	106,990	109.14	0.0610
2018-05-14	2018-03-31	13F	ROGERS	COM	775133101	427,948	162,081	60.96	51,157	18.83	0.0301
2018-03-12	2017-12-31	13F/A-1	ROGERS	COM	775133101	265,867	265,867		43,049		0.0265
2018-02-09	2017-12-31	13F	ROGERS	COM	775133101	265,867			43,049		0.0265

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.