Park-Ohio Holdings Corp.
US ˙ NasdaqGS ˙ US7006661000

SecurityPKOH / Park-Ohio Holdings Corp.
InstitutionMorgan Stanley
Latest Disclosed Ownership37,799 shares
Latest Disclosed Value $ 908,687
Morgan Stanley reports 7.69% increase in ownership of PKOH / Park-Ohio Holdings Corp.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 37,799 shares of Park-Ohio Holdings Corp. (US:PKOH) valued at $908,688 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 35,099 shares of Park-Ohio Holdings Corp.. This represents a change in shares of 7.69% during the quarter. The current value of the position is $1,209,946 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F PARK-OHIO HLDGS COM 700666100 37,799 2,700 7.69 909 23.71 0.0001
2026-05-27 2025-12-31 13F/A-1 PARK-OHIO HLDGS COM 700666100 35,099 13,419 61.90 735 59.57 0.0000
2026-02-13 2025-12-31 13F PARK-OHIO HLDGS COM 700666100 35,099 13,419 735 0.0000
2026-05-27 2025-09-30 13F/A-1 PARK-OHIO HLDGS COM 700666100 21,680 -5,850 -21.25 460 -6.31 0.0000
2025-11-14 2025-09-30 13F PARK-OHIO HLDGS COM 700666100 21,680 -5,850 460 0.0000
2025-08-15 2025-06-30 13F PARK-OHIO HLDGS COM 700666100 27,530 -3,050 -9.97 492 -25.61 0.0000
2025-05-15 2025-03-31 13F PARK-OHIO HLDGS COM 700666100 30,580 -6,100 -16.63 661 -31.46 0.0000
2025-05-15 2024-12-31 13F/A-1 PARK-OHIO HLDGS COM 700666100 36,680 -1,821 -4.73 964 -18.53 0.0001
2025-02-14 2024-12-31 13F PARK-OHIO HLDGS COM 700666100 36,680 -1,821 964 0.0001
2025-05-14 2024-09-30 13F/A-2 PARK-OHIO HLDGS COM 700666100 38,501 15,402 66.68 1,182 97.66 0.0001
2025-02-14 2024-09-30 13F/A-1 PARK-OHIO HLDGS COM 700666100 38,501 15,402 1,182 0.0001
2024-11-14 2024-09-30 13F PARK-OHIO HLDGS COM 700666100 38,501 15,402 1,182 0.0000
2025-05-14 2024-06-30 13F/A-2 PARK-OHIO HLDGS COM 700666100 23,099 -3,332 -12.61 598 -15.18 0.0000
2024-10-17 2024-06-30 13F/A-1 PARK-OHIO HLDGS COM 700666100 23,099 -3,332 598 0.0000
2024-08-14 2024-06-30 13F PARK-OHIO HLDGS COM 700666100 23,099 -3,332 598 0.0000
2024-10-17 2024-03-31 13F/A-2 PARK-OHIO HLDGS COM 700666100 26,431 -3,108 -10.52 705 -11.43 0.0001
2024-08-16 2024-03-31 13F/A-1 PARK-OHIO HLDGS COM 700666100 26,431 -3,108 705 0.0000
2024-05-15 2024-03-31 13F PARK-OHIO HLDGS COM 700666100 26,431 -3,108 705 0.0001
2024-08-16 2023-12-31 13F/A-1 PARK-OHIO HLDGS COM 700666100 29,539 12,523 73.60 796 135.50 0.0001
2024-02-13 2023-12-31 13F PARK-OHIO HLDGS COM 700666100 29,539 12,523 796 0.0001
2023-11-15 2023-09-30 13F PARK-OHIO HLDGS COM 700666100 17,016 -1,372 -7.46 339 -3.15 0.0000
2023-08-14 2023-06-30 13F PARK-OHIO HLDGS COM 700666100 18,388 -1,905 -9.39 349 42.45 0.0000
2023-05-15 2023-03-31 13F PARK-OHIO HLDGS COM 700666100 20,293 3,498 20.83 245 19.51 0.0000
2023-02-14 2022-12-31 13F PARK-OHIO HLDGS COM 700666100 16,795 -19,168 -53.30 205 -49.63 0.0000
2022-11-14 2022-09-30 13F PARK-OHIO HLDGS COM 700666100 35,963 -6,557 -15.42 407 -39.70 0.0001
2022-10-27 2022-06-30 13F/A-1 PARK-OHIO HLDGS COM 700666100 42,520 20,566 93.68 675 118.45 0.0001
2022-08-15 2022-06-30 13F PARK-OHIO HLDGS COM 700666100 42,520 20,566 675 0.0000
2022-10-27 2022-03-31 13F/A-1 PARK-OHIO HLDGS COM 700666100 21,954 -1,204 -5.20 309 -36.94 0.0000
2022-05-13 2022-03-31 13F PARK-OHIO HLDGS COM 700666100 21,954 -1,204 309 0.0000
2022-02-14 2021-12-31 13F PARK-OHIO HLDGS COM 700666100 23,158 4,070 21.32 490 0.62 0.0001
2021-11-15 2021-09-30 13F PARK-OHIO HLDGS COM 700666100 19,088 -3,707 -16.26 487 -33.38 0.0001
2021-08-23 2021-06-30 13F/A-1 PARK-OHIO HLDGS COM 700666100 22,795 -1,997 -8.06 731 -6.40 0.0001
2021-08-16 2021-06-30 13F PARK-OHIO HLDGS COM 700666100 22,795 -1,997 731 0.0000
2021-05-17 2021-03-31 13F PARK-OHIO HLDGS COM 700666100 24,792 -30 -0.12 781 1.83 0.0001
2021-02-16 2020-12-31 13F PARK-OHIO HLDGS COM 700666100 24,822 -38,360 -60.71 767 -24.51 0.0001
2020-11-13 2020-09-30 13F PARK OHIO HLDGS COM 700666100 63,182 14,087 28.69 1,016 24.66 0.0002
2020-08-14 2020-06-30 13F PARK OHIO HLDGS COM 700666100 49,095 32,149 189.71 815 153.89 0.0002
2020-05-26 2020-03-31 13F/A-1 PARK OHIO HLDGS COM 700666100 16,946 -21,274 -55.66 321 -75.04 0.0001
2020-05-15 2020-03-31 13F PARK OHIO HLDGS COM 700666100 16,946 -21,274 321 24.6595
2020-02-14 2019-12-31 13F PARK OHIO HLDGS COM 700666100 38,220 27,734 264.49 1,286 310.86 0.0003
2019-11-14 2019-09-30 13F PARK OHIO HLDGS COM 700666100 10,486 -26,104 -71.34 313 -73.74 0.0001
2019-08-14 2019-06-30 13F PARK OHIO HLDGS COM 700666100 36,590 22,167 153.69 1,192 155.25 0.0003
2019-05-15 2019-03-31 13F PARK OHIO HLDGS COM 700666100 14,423 -14,728 -50.52 467 -47.82 0.0001
2019-02-14 2018-12-31 13F PARK OHIO HLDGS COM 700666100 29,151 -17,906 -38.05 895 -50.42 0.0003
2019-04-23 2018-09-30 13F/A-2 PARK OHIO HLDGS COM 700666100 47,057 1,990 4.42 1,805 7.38 0.0005
2018-11-20 2018-09-30 13F/A-1 PARK OHIO HLDGS COM 700666100 47,057 0 1,805 0.0005
2018-11-14 2018-09-30 13F PARK OHIO HLDGS COM 700666100 47,057 1,990 1,805
2019-04-23 2018-06-30 13F/A-1 PARK OHIO HLDGS COM 700666100 45,067 -728 -1.59 1,681 -5.56 0.0005
2018-08-14 2018-06-30 13F PARK OHIO HLDGS COM 700666100 45,067 -728 1,681
2019-04-23 2018-03-31 13F/A-1 PARK OHIO HLDGS COM 700666100 45,795 4,871 11.90 1,780 -5.32 0.0005
2018-05-14 2018-03-31 13F PARK OHIO HLDGS COM 700666100 45,795 4,871 1,780
2019-04-23 2017-12-31 13F/A-1 PARK OHIO HLDGS COM 700666100 40,924 -2,971 -6.77 1,880 -6.09 0.0005
2018-02-14 2017-12-31 13F PARK OHIO HLDGS COM 700666100 40,924 -2,971 1,880
2017-11-14 2017-09-30 13F PARK OHIO HLDGS COM 700666100 43,895 7,734 21.39 2,002 45.28 0.0006
2017-08-11 2017-06-30 13F PARK OHIO HLDGS COM 700666100 36,161 -11,304 -23.82 1,378 -19.23 0.0004
2017-05-22 2017-03-31 13F/A-1 PARK OHIO HLDGS COM 700666100 47,465 2,618 5.84 1,706 -10.68 0.0005
2017-05-12 2017-03-31 13F PARK OHIO HLDGS COM 700666100 47,465 1,706
2017-02-22 2016-12-31 13F/A-1 PARK OHIO HLDGS COM 700666100 44,847 32,316 257.89 1,910 317.94 0.0006
2017-02-13 2016-12-31 13F PARK OHIO HLDGS COM 700666100 44,847 1,910
2016-11-10 2016-09-30 13F PARK OHIO HLDGS COM 700666100 12,531 -3,439 -21.53 457 1.11 0.0002
2016-08-12 2016-06-30 13F PARK OHIO HLDGS COM 700666100 15,970 -12,030 -42.96 452 -62.30 0.0002
2016-05-12 2016-03-31 13F PARK OHIO HLDGS COM 700666100 28,000 15,266 119.88 1,199 156.20 0.0005
2016-02-09 2015-12-31 13F PARK OHIO HLDGS COM 700666100 12,734 -7,080 -35.73 468 -18.18 0.0002
2016-02-08 2015-09-30 13F/A-1 PARK OHIO HLDGS COM 700666100 19,814 13,600 218.86 572 90.03 0.0002
2015-11-09 2015-09-30 13F PARK OHIO HLDGS COM 700666100 19,814 572
2015-08-12 2015-06-30 13F PARK OHIO HLDGS COM 700666100 6,214 -24,903 -80.03 301 -81.64 0.0001
2015-05-14 2015-03-31 13F PARK OHIO HLDGS COM 700666100 31,117 22,074 244.10 1,639 187.54 0.0006
2015-02-13 2014-12-31 13F PARK OHIO HLDGS COM 700666100 9,043 42 0.47 570 32.25 0.0002
2014-12-16 2014-09-30 13F/A-1 PARK OHIO HLDGS COM 700666100 9,001 -505 -5.31 431 -19.44 0.0002
2014-11-14 2014-09-30 13F PARK OHIO HLDGS COM 700666100 9,001 431
2014-05-13 2014-03-31 13F PARK OHIO HLDGS COM 700666100 9,506 3,024 46.65 535 57.35 0.0002
2014-02-13 2013-12-31 13F PARK OHIO HLDGS COM 700666100 6,482 -8,169 -55.76 340 -39.61 0.0001
2013-11-13 2013-09-30 13F PARK-OHIO HLDGS CORP COM ST COM 700666100 14,651 576 4.09 563 21.34 0.0003
2013-08-08 2013-06-30 13F PARK-OHIO HLDGS CORP COM ST COM 700666100 14,075 14,075 464 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.