ATMU

Atmus Filtration Technologies Inc.$45.66+0.21 (+0.46%)

Prev Close$45.41·MCap$3.95B·P/E17.87·Vol130.5K·Yield0.00%

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Buys (12M)

$209.5K

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Sells (12M)

$1.84M

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Net Activity

Net Seller

$1.63M

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Active Insiders

last 12 mo

Over the past 12 months, insider activity at Atmus Filtration Technologies Inc. (ATMU) has been dominated by selling, with 2 insider purchases totaling $209.5K and 7 insider sales totaling $1.84M. The most recent insider transaction was by Swan Renee (officer: Chief People Officer), who sold $197.0K worth of shares on Aug 18, 2026. Atmus Filtration Technologies Inc. operates in the Consumer Cyclical sector, within the Auto - Parts industry, with a market cap of $3.95B.

ATMU Insider Trading Activity

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 18, 2026	Swan Renee	officer: Chief People Officer	Sell	3,870	$50.89	$197.0K	46,875
Aug 13, 2026	Macadam Stephen E.	director	Buy	2,000	$49.78	$99.6K	40,588
Jun 2, 2026	Swan Renee	officer: Chief People Officer	Sell	2,566	$45.25	$116.1K	50,745
Jun 2, 2026	Masters Charles	officer: Senior Vice President	Sell	2,890	$45.25	$130.8K	43,579
Jun 2, 2026	Disher Stephanie	director, officer: Chief Executive Officer	Sell	25,652	$45.25	$1.16M	363,024
Jun 2, 2026	Kienzler Jack	officer: Chief Financial Officer	Sell	5,132	$45.25	$232.2K	75,804
May 13, 2026	HAGGERTY GRETCHEN R	director	Buy	1,973	$55.74	$110.0K	25,741
Oct 3, 2025	Kienzler Jack	Chief Financial Officer	Sell	25	$44.50	$1.1K	0
Oct 3, 2025	Masters Charles	Senior Vice President	Sell	28	$44.50	$1.2K	0
Aug 14, 2025	Swan Renee	Chief People Officer	Sell	5,007	$45.18	$226.2K	0
Apr 2, 2025	Donoso Diego	Director	Buy	40	$45.30	$1.8K	0
Apr 2, 2025	Donoso Diego	Director	Sell	60	$41.47	$2.5K	0
Mar 3, 2025	Disher Stephanie	Chief Executive Officer	Sell	5,178	$39.80	$206.1K	0
Mar 3, 2025	Kienzler Jack	Chief Financial Officer	Sell	839	$39.80	$33.4K	0
Mar 3, 2025	Masters Charles	Senior Vice President	Sell	1,306	$39.80	$52.0K	0
Oct 3, 2024	Kienzler Jack	Chief Financial Officer	Sell	22	$37.96	$835.12	0
Oct 3, 2024	Masters Charles	VP, Engine Products	Sell	26	$37.96	$986.96	0
Aug 23, 2024	HAGGERTY GRETCHEN R	Director	Buy	5,849	$34.19	$200.0K	0
Aug 14, 2024	Swan Renee	Chief People Officer	Sell	3,536	$32.78	$115.9K	0
Aug 7, 2024	Macadam Stephen E.	Director	Buy	8,250	$31.56	$260.4K	0
Mar 1, 2024	Disher Stephanie	Chief Executive Officer	Sell	3,294	$23.96	$78.9K	0
Mar 1, 2024	Hickey Toni	Chief Legal Officer	Sell	795	$23.96	$19.0K	0
Mar 1, 2024	Kienzler Jack	Chief Financial Officer	Sell	931	$23.96	$22.3K	0
Mar 1, 2024	Masters Charles	VP, Engine Products	Sell	1,282	$23.96	$30.7K	0
Nov 9, 2023	Macadam Stephen E.	Director	Buy	5,200	$19.49	$101.3K	0
May 26, 2023	Macadam Stephen E.	Director	Buy	4,600	$21.75	$100.0K	0

ATMU Insider Buying Activity

The following table shows recent insider purchases of Atmus Filtration Technologies Inc. (ATMU) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 13, 2026	Macadam Stephen E.	director	Buy	2,000	$49.78	$99.6K	40,588
May 13, 2026	HAGGERTY GRETCHEN R	director	Buy	1,973	$55.74	$110.0K	25,741
Apr 2, 2025	Donoso Diego	Director	Buy	40	$45.30	$1.8K	0
Aug 23, 2024	HAGGERTY GRETCHEN R	Director	Buy	5,849	$34.19	$200.0K	0
Aug 7, 2024	Macadam Stephen E.	Director	Buy	8,250	$31.56	$260.4K	0
Nov 9, 2023	Macadam Stephen E.	Director	Buy	5,200	$19.49	$101.3K	0
May 26, 2023	Macadam Stephen E.	Director	Buy	4,600	$21.75	$100.0K	0

ATMU Insider Selling Activity

The following table shows recent insider sales of Atmus Filtration Technologies Inc. (ATMU) stock reported via SEC Form 4 filings.

Date	Insider	Role	Type	Shares	Avg Price	Value	Shares After
Aug 18, 2026	Swan Renee	officer: Chief People Officer	Sell	3,870	$50.89	$197.0K	46,875
Jun 2, 2026	Swan Renee	officer: Chief People Officer	Sell	2,566	$45.25	$116.1K	50,745
Jun 2, 2026	Masters Charles	officer: Senior Vice President	Sell	2,890	$45.25	$130.8K	43,579
Jun 2, 2026	Disher Stephanie	director, officer: Chief Executive Officer	Sell	25,652	$45.25	$1.16M	363,024
Jun 2, 2026	Kienzler Jack	officer: Chief Financial Officer	Sell	5,132	$45.25	$232.2K	75,804
Oct 3, 2025	Kienzler Jack	Chief Financial Officer	Sell	25	$44.50	$1.1K	0
Oct 3, 2025	Masters Charles	Senior Vice President	Sell	28	$44.50	$1.2K	0
Aug 14, 2025	Swan Renee	Chief People Officer	Sell	5,007	$45.18	$226.2K	0
Apr 2, 2025	Donoso Diego	Director	Sell	60	$41.47	$2.5K	0
Mar 3, 2025	Disher Stephanie	Chief Executive Officer	Sell	5,178	$39.80	$206.1K	0
Mar 3, 2025	Kienzler Jack	Chief Financial Officer	Sell	839	$39.80	$33.4K	0
Mar 3, 2025	Masters Charles	Senior Vice President	Sell	1,306	$39.80	$52.0K	0
Oct 3, 2024	Kienzler Jack	Chief Financial Officer	Sell	22	$37.96	$835.12	0
Oct 3, 2024	Masters Charles	VP, Engine Products	Sell	26	$37.96	$986.96	0
Aug 14, 2024	Swan Renee	Chief People Officer	Sell	3,536	$32.78	$115.9K	0
Mar 1, 2024	Disher Stephanie	Chief Executive Officer	Sell	3,294	$23.96	$78.9K	0
Mar 1, 2024	Hickey Toni	Chief Legal Officer	Sell	795	$23.96	$19.0K	0
Mar 1, 2024	Kienzler Jack	Chief Financial Officer	Sell	931	$23.96	$22.3K	0
Mar 1, 2024	Masters Charles	VP, Engine Products	Sell	1,282	$23.96	$30.7K	0