SEC Insider Transactions from Donoso Diego.

Last updated: 2026-03-14 11:19 UTC | Total transactions: 16

Donoso Diego, a director at Atmus Filtration Technologies Inc. ($ATMU), made two open market purchases of common shares in the last 365 days, totaling $1,812, with the most recent on September 5, 2025. These purchases rank 4,769th among 4,983 individual insiders, far below the average of $1.5 million per insider and 3.29 transactions. Diego also sold shares twice on the open market, for a total of $2,488, with the latest sale on November 13, 2025. These sales rank 11,476th out of 11,678 insiders, well under the average sale value of $8.6 million and 6.37 transactions.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
April 2, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director S Common Stock 40 $37.79 9,038.0000 83,600,000 0.44% 0.00%
Nov. 18, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director J Common Stock 20 $0.00 9,078.0000 83,300,000 0.22% 0.00%
Nov. 13, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director S Common Stock 20 $48.84 9,058.0000 83,300,000 0.22% 0.00%
Sept. 5, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director P Common Stock 15 $45.81 9,078.0000 83,600,000 0.17% 0.00%
Aug. 13, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director P Common Stock 25 $45.00 9,063.0000 83,600,000 0.28% 0.00%
May 20, 2025 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director A Common Stock 3886 $0.00 9,078.0000 83,600,000 74.85% 0.00%
March 31, 2025 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Deferred Share Units 16523 $0.00 26,931.2446 257,667,125 158.75% 0.01%
Nov. 9, 2024 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director M Restricted Stock Units 56497 $0.00 0.0000 25,769,616 100.00% 0.22%
Nov. 9, 2024 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director M Common Stock 56497 $0.00 56,497.0000 25,769,616 9999.99% 0.22%
May 14, 2024 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director A Common Stock 4565 $0.00 5,192.0000 83,400,000 728.07% 0.01%
May 9, 2024 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Restricted Stock Units 56497 $0.00 56,497.1751 257,042,843 9999.99% 0.02%
March 18, 2024 Atmus Filtration Technologies Inc. $ATMU Donoso Diego Director A Common Stock 627 $0.00 627.0000 83,400,000 9999.99% 0.00%
Dec. 29, 2023 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Deferred Share Units 6279 $0.00 10,408.2561 258,791,228 152.03% 0.00%
Sept. 29, 2023 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Deferred Share Units 3590 $0.00 4,129.7173 258,791,228 665.27% 0.00%
June 30, 2023 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Deferred Share Units 540 $0.00 539.6389 258,791,228 9999.99% 0.00%
June 16, 2023 GRAFTECH INTERNATIONAL LTD $EAF Donoso Diego Director A Deferred Restricted Stock Units 11068 $0.00 11,068.4932 258,791,228 9999.99% 0.00%