There is a long list of 280 institutional holders of CPK within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of CPK by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-CPK table below, the initial column indicates the name of each top institutional holder of CPK, with a link to that fund's top holdings. The next columns indicate the amount of CPK stock held by each of the institutional holders of CPK, followed by the CPK position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	3,584,083	$378,587	12/31/2023
CPK	3,584,083	$378,587	12/31/2023
T. Rowe Price Investment Management Inc.	2,099,243	$221,744	12/31/2023
CPK	2,099,243	$221,744	12/31/2023
Vanguard Group Inc.	1,740,123	$183,809	12/31/2023
CPK	1,740,123	$183,809	12/31/2023
State Street Corp	830,813	$88,242	12/31/2023
CPK	830,813	$88,242	12/31/2023
First Trust Advisors LP	628,529	$66,392	12/31/2023
CPK	628,529	$66,392	12/31/2023
Zimmer Partners LP	622,625	$65,768	12/31/2023
CPK	622,625	$65,768	12/31/2023
Copeland Capital Management LLC	536,856	$57,605	03/31/2024
CPK	536,856	$57,605	03/31/2024
Dimensional Fund Advisors LP	455,969	$48,164	12/31/2023
CPK	455,969	$48,164	12/31/2023
Geode Capital Management LLC	452,789	$47,834	12/31/2023
CPK	452,789	$47,834	12/31/2023
Bank of New York Mellon Corp	418,224	$44,177	12/31/2023
CPK	418,224	$44,177	12/31/2023
Morgan Stanley	344,471	$36,387	12/31/2023
CPK	344,471	$36,387	12/31/2023
Jennison Associates LLC	333,854	$35,265	12/31/2023
CPK	333,854	$35,265	12/31/2023
Adage Capital Partners GP L.L.C.	321,136	$33,922	12/31/2023
CPK	321,136	$33,922	12/31/2023
JPMorgan Chase & Co.	308,454	$32,582	12/31/2023
CPK	308,454	$32,582	12/31/2023
Northern Trust Corp	289,591	$30,589	12/31/2023
CPK	289,591	$30,589	12/31/2023
Schroder Investment Management Group	234,996	$24,823	12/31/2023
CPK	234,996	$24,823	12/31/2023
Charles Schwab Investment Management Inc.	230,444	$24,342	12/31/2023
CPK	230,444	$24,342	12/31/2023
Goldman Sachs Group Inc.	228,507	$24,137	12/31/2023
CPK	228,507	$24,137	12/31/2023
Janus Henderson Group PLC	170,354	$17,995	12/31/2023
CPK	170,354	$17,995	12/31/2023
Boston Trust Walden Corp	155,844	$16,722	03/31/2024
CPK	155,844	$16,722	03/31/2024
Tributary Capital Management LLC	133,259	$14,299	03/31/2024
CPK	133,259	$14,299	03/31/2024
Millennium Management LLC	127,608	$13,479	12/31/2023
CPK	127,608	$13,479	12/31/2023
Principal Financial Group Inc.	112,667	$11,901	12/31/2023
CPK	112,667	$11,901	12/31/2023
Deutsche Bank AG	105,006	$11,092	12/31/2023
CPK	105,006	$11,092	12/31/2023
Legal & General Group Plc	104,687	$11,058	12/31/2023
CPK	104,687	$11,058	12/31/2023
Soros Fund Management LLC	100,000	$10,563	12/31/2023
CPK	100,000	$10,563	12/31/2023
RMB Capital Management LLC	99,100	$10,468	12/31/2023
CPK	99,100	$10,468	12/31/2023
Envestnet Asset Management Inc.	91,441	$9,659	12/31/2023
CPK	91,441	$9,659	12/31/2023
Invesco Ltd.	88,228	$9,320	12/31/2023
CPK	88,228	$9,320	12/31/2023
Hudson Bay Capital Management LP	83,000	$8,767	12/31/2023
CPK	83,000	$8,767	12/31/2023
ProShare Advisors LLC	81,941	$8,655	12/31/2023
CPK	81,941	$8,655	12/31/2023
Strs Ohio	81,200	$8,577	12/31/2023
CPK	81,200	$8,577	12/31/2023
TD Asset Management Inc.	76,824	$8,115	12/31/2023
CPK	76,824	$8,115	12/31/2023
Tufton Capital Management	71,250	$7,526	12/31/2023
CPK	71,250	$7,526	12/31/2023
Alliancebernstein L.P.	69,082	$7,297	12/31/2023
CPK	69,082	$7,297	12/31/2023
Rhumbline Advisers	66,200	$6,993	12/31/2023
CPK	66,200	$6,993	12/31/2023
Cramer Rosenthal Mcglynn LLC	64,416	$6,804	12/31/2023
CPK	64,416	$6,804	12/31/2023
Ameriprise Financial Inc.	63,312	$6,688	12/31/2023
CPK	63,312	$6,688	12/31/2023
Nuveen Asset Management LLC	62,791	$6,633	12/31/2023
CPK	62,791	$6,633	12/31/2023
Clear Harbor Asset Management LLC	61,607	$6,507	12/31/2023
CPK	61,607	$6,507	12/31/2023
Voloridge Investment Management LLC	57,381	$6,061	12/31/2023
CPK	57,381	$6,061	12/31/2023
Peregrine Capital Management LLC	54,485	$5,755	12/31/2023
CPK	54,485	$5,755	12/31/2023
Mutual of America Capital Management LLC	52,730	$5,570	12/31/2023
CPK	52,730	$5,570	12/31/2023
Brandywine Global Investment Management LLC	52,548	$5,551	12/31/2023
CPK	52,548	$5,551	12/31/2023
Gabelli Funds LLC	51,800	$5,472	12/31/2023
CPK	51,800	$5,472	12/31/2023
Ghisallo Capital Management LLC	50,000	$5,282	12/31/2023
CPK	50,000	$5,282	12/31/2023
Citigroup Inc.	48,014	$5,072	12/31/2023
CPK	48,014	$5,072	12/31/2023
UBS Group AG	47,631	$5,031	12/31/2023
CPK	47,631	$5,031	12/31/2023
Brasada Capital Management LP	46,556	$4,918	12/31/2023
CPK	46,556	$4,918	12/31/2023
Public Sector Pension Investment Board	44,947	$4,748	12/31/2023
CPK	44,947	$4,748	12/31/2023