Who owns Park-Ohio Holdings (PKOH)
Which tracked institutional funds hold PKOH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PKOH company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on PKOH is one-sided between 2026-Q1 and 2026-Q2: 44 added or opened and 5 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
PKOH’s largest tracked holder by dollar value, GAMCO INVESTORS, INC. ET AL, sizes it at 0.4% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in PKOH divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 97 tracked filers holding PKOH, 54 increased or opened the position and 43 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in PKOH between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- ALGERT GLOBAL LLC$2M
- Informed Momentum Co LLC$1M
- Manatuck Hill Partners, LLC$1M
- Prescott Group Capital Management, L.L.C.$1M
- FRANKLIN RESOURCES INC$887K
- Schneider Downs Wealth Management Advisors, LP$827K
Full exits 5
- ACADIAN ASSET MANAGEMENT LLC$5M
- LSV ASSET MANAGEMENT$3M
- ARISTEIA CAPITAL, L.L.C.$658K
- Qube Research & Technologies Ltd$597K
- GSA CAPITAL PARTNERS LLP$504K
Largest adds
- GAMCO INVESTORS, INC. ET AL$17M
- BlackRock, Inc.$13M
- DIMENSIONAL FUND ADVISORS LP$13M
- PRIVATE MANAGEMENT GROUP INC$10M
- AMERICAN CENTURY COMPANIES INC$8M
- VANGUARD CAPITAL MANAGEMENT LLC$7M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| GAMCO INVESTORS, INC. ET AL trimmed | 1,225,526 | $47M | 15.0% | 2026-Q2 |
| PRIVATE MANAGEMENT GROUP INC trimmed | 892,294 | $34M | 10.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 857,476 | $33M | 10.5% | 2026-Q2 |
| BlackRock, Inc. added | 733,129 | $28M | 9.0% | 2026-Q2 |
| GABELLI FUNDS LLC trimmed | 496,201 | $19M | 6.1% | 2026-Q2 |
| First Eagle Investment Management, LLC trimmed | 477,847 | $18M | 5.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 443,880 | $17M | 5.4% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 341,508 | $13M | 4.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 252,035 | $10M | 3.1% | 2026-Q2 |
| STATE STREET CORP added | 177,180 | $7M | 2.2% | 2026-Q2 |
| Teton Advisors, LLC trimmed | 153,000 | $6M | 1.9% | 2026-Q2 |
| JB CAPITAL PARTNERS LP | 121,899 | $5M | 1.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 114,518 | $4M | 1.4% | 2026-Q2 |
| CM WEALTH ADVISORS LLC added | 111,892 | $4M | 1.4% | 2026-Q2 |
| NORTHERN TRUST CORP added | 89,737 | $3M | 1.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 77,068 | $3M | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 64,507 | $2M | 0.8% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 58,900 | $2M | 0.7% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 58,136 | $2M | 0.7% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 56,724 | $2M | 0.7% | 2026-Q2 |
| Trexquant Investment LP added | 49,980 | $2M | 0.6% | 2026-Q2 |
| ALGERT GLOBAL LLC new | 48,504 | $2M | 0.6% | 2026-Q2 |
| KING LUTHER CAPITAL MANAGEMENT CORP | 45,905 | $2M | 0.6% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 41,150 | $2M | 0.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 37,712 | $1M | 0.5% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC added | 37,373 | $1M | 0.5% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 33,880 | $1M | 0.4% | 2026-Q2 |
| Informed Momentum Co LLC new | 33,395 | $1M | 0.4% | 2026-Q2 |
| Manatuck Hill Partners, LLC new | 32,984 | $1M | 0.4% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 27,568 | $1M | 0.3% | 2026-Q2 |
| Prescott Group Capital Management, L.L.C. added | 27,024 | $1M | 0.3% | 2026-Q2 |
| MORGAN STANLEY trimmed | 25,073 | $964K | 0.3% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 25,051 | $963K | 0.3% | 2026-Q2 |
| FRANKLIN RESOURCES INC new | 23,065 | $887K | 0.3% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 22,856 | $879K | 0.3% | 2026-Q2 |
| Schneider Downs Wealth Management Advisors, LP trimmed | 21,500 | $827K | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 20,990 | $807K | 0.3% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 17,843 | $687K | 0.2% | 2026-Q2 |
| Jump Financial, LLC new | 17,284 | $665K | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 15,272 | $587K | 0.2% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 14,765 | $560K | 0.2% | 2026-Q2 |
| HSBC HOLDINGS PLC new | 14,342 | $549K | 0.2% | 2026-Q2 |
| OCCUDO QUANTITATIVE STRATEGIES LP new | 13,241 | $509K | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 12,538 | $482K | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 12,053 | $463K | 0.1% | 2026-Q2 |
| Empowered Funds, LLC | 11,396 | $438K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 10,854 | $417K | 0.1% | 2026-Q2 |
| UBS Group AG added | 10,490 | $403K | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 10,426 | $401K | 0.1% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC trimmed | 9,078 | $349K | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 9,037 | $347K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 9,020 | $347K | 0.1% | 2026-Q2 |
| BAILARD, INC. trimmed | 9,000 | $346K | 0.1% | 2026-Q2 |
| Invesco Ltd. trimmed | 8,973 | $345K | 0.1% | 2026-Q2 |
| XTX Topco Ltd new | 8,967 | $345K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 8,612 | $331K | 0.1% | 2026-Q2 |
| Ancora Advisors LLC added | 7,856 | $302K | 0.1% | 2026-Q2 |
| BFSG, LLC trimmed | 7,365 | $283K | 0.1% | 2026-Q2 |
| Mariner, LLC new | 7,256 | $279K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 6,886 | $265K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 5,404 | $208K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 4,872 | $187K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 4,647 | $179K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 4,296 | $164K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 3,479 | $134K | 0.0% | 2026-Q2 |
| Kemnay Advisory Services Inc. new | 3,271 | $126K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 3,268 | $126K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey | 2,560 | $98K | 0.0% | 2026-Q2 |
| STRS OHIO trimmed | 2,400 | $92K | 0.0% | 2026-Q2 |
| FMR LLC added | 2,211 | $85K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 1,180 | $46K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 1,184 | $46K | 0.0% | 2026-Q2 |
| Clearstead Advisors, LLC | 1,000 | $38K | 0.0% | 2026-Q2 |
| LOM Asset Management Ltd | 1,000 | $38K | 0.0% | 2026-Q2 |
| Legal & General Group Plc added | 995 | $38K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. added | 916 | $35K | 0.0% | 2026-Q2 |
| FEDERATED HERMES, INC. | 744 | $29K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC added | 669 | $26K | 0.0% | 2026-Q2 |
| Arax Advisory Partners added | 610 | $23K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC trimmed | 203 | $8K | 0.0% | 2026-Q2 |
| BELLEVUE ASSET MANAGEMENT, LLC | 200 | $8K | 0.0% | 2026-Q2 |
| North Star Investment Management Corp. trimmed | 165 | $6K | 0.0% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 137 | $5K | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 116 | $4K | 0.0% | 2026-Q2 |
| Optiver Holding B.V. trimmed | 88 | $3K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC | 88 | $3K | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. | 67 | $3K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 55 | $2K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 41 | $2K | 0.0% | 2026-Q2 |
| Essential Partners LLC trimmed | 39 | $2K | 0.0% | 2026-Q2 |
| Allworth Financial LP added | 35 | $1K | 0.0% | 2026-Q2 |
| True Wealth Design, LLC trimmed | 17 | $654 | 0.0% | 2026-Q2 |
| IFP Advisors, Inc | 9 | $346 | 0.0% | 2026-Q2 |
| ROTHSCHILD INVESTMENT LLC | 7 | $269 | 0.0% | 2026-Q2 |
| SJS Investment Consulting Inc. new | 1 | $39 | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC trimmed | 1 | $38 | 0.0% | 2026-Q2 |
| Kingdom Financial Group LLC. | 1 | $22 | 0.0% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC | 222,250 | $5M | 1.7% | 2026-Q1 stale (1 quarter behind) |
| LSV ASSET MANAGEMENT trimmed | 141,912 | $3M | 1.1% | 2026-Q1 stale (1 quarter behind) |
| VANGUARD GROUP INC added | 546,887 | $11M | 3.6% | 2025-Q4 stale (2 quarters behind) |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.