Investor Clarkston Capital Partners, LLC
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Clarkston Capital Partners, LLC . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

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Date Form Target Prev
Shares		 Current
Shares		 Change
(Percent)		 Ownership
(Percent)		 Change
(Percent)
2025-08-13 13G NEOG / Neogen Corporation 14,005,725
2025-08-13 13G/A WLY / John Wiley & Sons, Inc. 3,288,240 1,892,495
2025-08-13 13G/A HI / Hillenbrand, Inc. 4,409,076 3,346,801
2025-08-06 13G/A LESL / Leslie's, Inc. 14,037,110 80,000
2025-07-08 13G/A CABO / Cable One, Inc. 357,192 250
2025-07-08 13G/A LESL / Leslie's, Inc. 23,581,450 14,037,110
2025-05-13 13G CABO / Cable One, Inc. 357,192
2025-02-14 13G/A AMG / Affiliated Managers Group, Inc. 2,229,049 1,572,189
2024-12-05 13G/A CLVT / Clarivate Plc 56,341,399 72,209,043
2024-11-08 13G/A SRCL / Stericycle, Inc. 6,472,501 3,822,473
2024-11-08 13G/A WLY / John Wiley & Sons, Inc. 4,234,218 3,288,240
2024-09-04 13G/A ATUS / Altice USA, Inc. 35,512,191 6,015,580
2024-05-08 13G/A LESL / Leslie's, Inc. 18,242,993 23,581,450
2024-02-12 13G POST / Post Holdings, Inc. 3,562,796
2024-02-12 13G LESL / Leslie's, Inc. 18,242,993
2024-02-12 13G/A HI / Hillenbrand, Inc. 5,116,720 4,409,076
2024-02-12 13G/A ENR / Energizer Holdings, Inc. 4,036,587 4,141,169
2024-02-12 13G/A ATUS / Altice USA, Inc. 35,252,350 35,512,191
2024-02-12 13G/A WLY / John Wiley & Sons, Inc. 2,746,684 4,234,218
2024-02-12 13G/A CLVT / Clarivate Plc 48,465,749 56,341,399
2024-02-12 13G/A SRCL / Stericycle, Inc. 6,333,530 6,472,501
2024-02-12 13G/A EPAC / Enerpac Tool Group Corp. 5,005,747 0
2024-02-12 13G/A AMG / Affiliated Managers Group, Inc. 2,237,093 2,229,049
2023-05-17 13G/A ATUS / Altice USA, Inc. 35,252,350 35,252,350
2023-02-14 13G/A ATUS / Altice USA, Inc. 27,554,566 35,252,350
2023-02-14 13G/A HI / Hillenbrand, Inc. 5,310,365 5,116,720
2023-02-14 13G/A WLY / John Wiley & Sons, Inc. 2,845,010 2,746,684
2023-02-14 13G/A EPAC / Enerpac Tool Group Corp. 4,641,925 5,005,747
2023-02-14 13G AMG / Affiliated Managers Group, Inc. 2,237,093
2023-02-14 13G CLVT / Clarivate Plc 48,465,749
2023-02-14 13G ENR / Energizer Holdings, Inc. 4,036,587
2023-02-14 13G SRCL / Stericycle, Inc. 6,333,530
2022-08-02 13G/A CDK / CDK Global Inc 6,066,913 0
2022-05-10 13G/A NLSN / Nielsen Holdings plc 22,677,580 10,602,937
2022-04-07 13G/A ATUS / Altice USA, Inc. 20,408,200 27,554,566
2022-03-08 13G/A ECOL / US Ecology Inc. 3,152,809 0
2022-02-10 13G ECOL / US Ecology Inc. 3,152,809
2022-02-10 13G ECOL / US Ecology Inc. 3,152,809
2022-02-10 13G/A EPAC / Enerpac Tool Group Corp. 4,822,183 4,641,925
2022-02-10 13G/A NLSN / Nielsen Holdings plc 21,431,859 22,677,580
2022-02-10 13G/A WLY / John Wiley & Sons, Inc. 3,081,346 2,845,010
2022-02-10 13G/A HI / Hillenbrand, Inc. 5,703,462 5,310,365
2022-02-10 13G/A CHNG / Change Healthcare Inc 19,292,375 18,886,565
2022-02-10 13G CDK / CDK Global Inc 6,066,913
2022-02-10 13G ATUS / Altice USA, Inc. 20,408,200
2021-02-16 13G NLSN / Nielsen Holdings plc 21,431,859
2021-02-16 13G/A EPAC / Enerpac Tool Group Corp. 3,282,157 4,822,183
2021-02-16 13G JW.A / John Wiley & Sons Inc. - Class A 3,081,346
2021-02-16 13G HI / Hillenbrand, Inc. 5,703,462
2021-02-16 13G CHNG / Change Healthcare Inc 19,292,375
2020-03-20 13G/A US5249011058 / Legg Mason, Inc. 4,677,338 4,296,964
2020-02-20 13G/A MATW / Matthews International Corporation 1,504,499 1,504,499
2020-02-19 13G/A MATW / Matthews International Corporation 1,592,157 1,504,499
2020-02-14 13G MATW / Matthews International Corporation 1,592,157
2020-02-14 13G/A EPAC / Enerpac Tool Group Corp. 3,061,467 3,282,157
2020-02-14 13G/A US5249011058 / Legg Mason, Inc. 4,661,135 4,677,338
2019-02-14 13G US5249011058 / Legg Mason, Inc. 4,661,135
2019-02-14 13G EPAC / Enerpac Tool Group Corp. 3,061,467