There is a long list of 90 institutional holders of PKOH 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 PKOH by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-PKOH table below, the initial column indicates the name of each top institutional holder of PKOH, with a link to that fund's top holdings. The next columns indicate the amount of PKOH stock held by each of the institutional holders of PKOH, followed by the PKOH 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
Private Management Group Inc.	981,414	$26,459	12/31/2023
PKOH	981,414	$26,459	12/31/2023
Gamco Investors INC. ET AL	954,227	$25,726	12/31/2023
PKOH	954,227	$25,726	12/31/2023
Dimensional Fund Advisors LP	751,077	$20,249	12/31/2023
PKOH	751,077	$20,249	12/31/2023
BlackRock Inc.	585,188	$15,777	12/31/2023
PKOH	585,188	$15,777	12/31/2023
Gabelli Funds LLC	477,800	$12,881	12/31/2023
PKOH	477,800	$12,881	12/31/2023
Vanguard Group Inc.	439,594	$11,851	12/31/2023
PKOH	439,594	$11,851	12/31/2023
Acadian Asset Management LLC	245,894	$6,624	12/31/2023
PKOH	245,894	$6,624	12/31/2023
LSV Asset Management	213,257	$5,749	12/31/2023
PKOH	213,257	$5,749	12/31/2023
Teton Advisors Inc.	189,000	$5,095	12/31/2023
PKOH	189,000	$5,095	12/31/2023
Geode Capital Management LLC	182,275	$4,915	12/31/2023
PKOH	182,275	$4,915	12/31/2023
State Street Corp	124,438	$3,355	12/31/2023
PKOH	124,438	$3,355	12/31/2023
CM Wealth Advisors LLC	117,626	$3,171	12/31/2023
PKOH	117,626	$3,171	12/31/2023
Prescott Group Capital Management L.L.C.	110,000	$2,966	12/31/2023
PKOH	110,000	$2,966	12/31/2023
First Eagle Investment Management LLC	106,178	$2,863	12/31/2023
PKOH	106,178	$2,863	12/31/2023
Bank of New York Mellon Corp	97,304	$2,623	12/31/2023
PKOH	97,304	$2,623	12/31/2023
American Century Companies Inc.	88,181	$2,377	12/31/2023
PKOH	88,181	$2,377	12/31/2023
JB Capital Partners LP	76,899	$2,073	12/31/2023
PKOH	76,899	$2,073	12/31/2023
Northern Trust Corp	67,963	$1,832	12/31/2023
PKOH	67,963	$1,832	12/31/2023
Los Angeles Capital Management & Equity Research Inc.	55,462	$1,480	03/31/2024
PKOH	55,462	$1,480	03/31/2024
Connor Clark & Lunn Investment Management Ltd.	50,742	$1,368	12/31/2023
PKOH	50,742	$1,368	12/31/2023
Arrowstreet Capital Limited Partnership	46,640	$1,257	12/31/2023
PKOH	46,640	$1,257	12/31/2023
Millennium Management LLC	43,731	$1,179	12/31/2023
PKOH	43,731	$1,179	12/31/2023
Two Sigma Investments LP	41,082	$1,108	12/31/2023
PKOH	41,082	$1,108	12/31/2023
Bridgeway Capital Management Inc.	41,018	$1,106	12/31/2023
PKOH	41,018	$1,106	12/31/2023
Two Sigma Advisers LP	39,447	$1,063	12/31/2023
PKOH	39,447	$1,063	12/31/2023
EAM Investors LLC	34,798	$938	12/31/2023
PKOH	34,798	$938	12/31/2023
Morgan Stanley	29,539	$796	12/31/2023
PKOH	29,539	$796	12/31/2023
Invesco Ltd.	27,836	$750	12/31/2023
PKOH	27,836	$750	12/31/2023
O Shaughnessy Asset Management LLC	24,966	$673	12/31/2023
PKOH	24,966	$673	12/31/2023
Trexquant Investment LP	24,777	$668	12/31/2023
PKOH	24,777	$668	12/31/2023
Charles Schwab Investment Management Inc.	24,235	$653	12/31/2023
PKOH	24,235	$653	12/31/2023
Victory Capital Management Inc.	24,200	$652	12/31/2023
PKOH	24,200	$652	12/31/2023
First Trust Advisors LP	22,659	$611	12/31/2023
PKOH	22,659	$611	12/31/2023
Quadrature Capital Ltd	22,632	$610	12/31/2023
PKOH	22,632	$610	12/31/2023
JPMorgan Chase & Co.	21,922	$591	12/31/2023
PKOH	21,922	$591	12/31/2023
Cornercap Investment Counsel Inc.	20,864	$562	12/31/2023
PKOH	20,864	$562	12/31/2023
Sei Investments Co.	20,566	$554	12/31/2023
PKOH	20,566	$554	12/31/2023
Nuveen Asset Management LLC	19,198	$518	12/31/2023
PKOH	19,198	$518	12/31/2023
Schneider Downs Wealth Management Advisors LP	19,155	$516	12/31/2023
PKOH	19,155	$516	12/31/2023
Assenagon Asset Management S.A.	18,187	$490	12/31/2023
PKOH	18,187	$490	12/31/2023
Citadel Advisors LLC	17,768	$479	12/31/2023
PKOH	17,768	$479	12/31/2023
Heritage Investors Management Corp	15,580	$420	12/31/2023
PKOH	15,580	$420	12/31/2023
GSA Capital Partners LLP	15,251	$411	12/31/2023
PKOH	15,251	$411	12/31/2023
Barclays PLC	12,518	$338	12/31/2023
PKOH	12,518	$338	12/31/2023
Bank of America Corp DE	10,854	$293	12/31/2023
PKOH	10,854	$293	12/31/2023
UBS Group AG	9,742	$263	12/31/2023
PKOH	9,742	$263	12/31/2023
Russell Investments Group Ltd.	9,717	$262	12/31/2023
PKOH	9,717	$262	12/31/2023
Bailard Inc.	9,399	$253	12/31/2023
PKOH	9,399	$253	12/31/2023
Rhumbline Advisers	9,181	$248	12/31/2023
PKOH	9,181	$248	12/31/2023
Empowered Funds LLC	8,918	$240	12/31/2023
PKOH	8,918	$240	12/31/2023