AMPCO-PITTSBURGH CORP

Ticker: AP CUSIP: 032037103 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 334,973 Value ($000) $1,786 Avg Close $2.77 Range $1.75 - $5.82

Q3 2025

Shares 336,120 Value ($000) $770 Avg Close $2.97 Range $2.16 - $3.99

Q2 2025

Shares 337,844 Value ($000) $1,000 Avg Close $2.59 Range $1.78 - $3.99

Q1 2025

Shares 310,537 Value ($000) $674 Avg Close $2.21 Range $1.78 - $2.79

Q4 2024

Shares 292,310 Value ($000) $611 Avg Close $1.90 Range $1.61 - $2.44

Q3 2024

Shares 314,845 Value ($000) $630 Avg Close $1.68 Range $0.74 - $2.36

Q2 2024

Shares 420,297 Value ($000) $324 Avg Close $1.67 Range $0.75 - $2.40

Q1 2024

Shares 616,363 Value ($000) $1,338 Avg Close $2.51 Range $2.09 - $2.89

Q4 2023

Shares 631,157 Value ($000) $1,723 Avg Close $2.68 Range $2.44 - $3.02

Q3 2023

Shares 632,099 Value ($000) $1,662 Avg Close $3.29 Range $2.56 - $4.00

Q2 2023

Shares 645,203 Value ($000) $2,052 Avg Close $2.97 Range $2.49 - $3.38

Q1 2023

Shares 649,431 Value ($000) $1,591 Avg Close $2.86 Range $2.15 - $3.45

Q4 2022

Shares 660,768 Value ($000) $2 Avg Close $3.08 Range $2.26 - $4.06

Q3 2022

Shares 659,263 Value ($000) $2,425 Avg Close $4.09 Range $3.36 - $4.80

Q2 2022

Shares 661,673 Value ($000) $2,561 Avg Close $4.77 Range $3.06 - $6.40

Q1 2022

Shares 660,448 Value ($000) $4,167 Avg Close $6.02 Range $4.96 - $6.67

Q4 2021

Shares 647,423 Value ($000) $3,237 Avg Close $4.91 Range $4.37 - $5.73

Q3 2021

Shares 679,661 Value ($000) $3,194 Avg Close $5.34 Range $4.12 - $6.55

Q2 2021

Shares 723,146 Value ($000) $4,390 Avg Close $6.78 Range $5.52 - $8.19

Q1 2021

Shares 702,479 Value ($000) $4,742 Avg Close $7.33 Range $5.45 - $8.81

Q4 2020

Shares 648,353 Value ($000) $3,553 Avg Close $4.61 Range $3.27 - $6.81

Q3 2020

Shares 663,354 Value ($000) $2,183 Avg Close $3.21 Range $2.70 - $4.31

Q2 2020

Shares 695,244 Value ($000) $2,134 Avg Close $3.21 Range $2.29 - $4.50

Q1 2020

Shares 711,516 Value ($000) $1,779 Avg Close $2.77 Range $1.94 - $3.20

Q4 2019

Shares 720,251 Value ($000) $2,168 Avg Close $3.53 Range $2.85 - $4.24

Q3 2019

Shares 745,632 Value ($000) $2,744 Avg Close $3.75 Range $3.33 - $4.45

Q2 2019

Shares 752,859 Value ($000) $3,034 Avg Close $3.74 Range $3.00 - $4.92

Q1 2019

Shares 752,959 Value ($000) $2,485 Avg Close $3.80 Range $3.02 - $4.64

Q4 2018

Shares 760,578 Value ($000) $2,358 Avg Close $4.20 Range $2.79 - $6.00

Q3 2018

Shares 775,582 Value ($000) $4,576 Avg Close $8.53 Range $5.55 - $11.07

Q2 2018

Shares 747,324 Value ($000) $7,660 Avg Close $10.06 Range $8.49 - $11.35

Q1 2018

Shares 715,763 Value ($000) $6,370 Avg Close $12.00 Range $8.85 - $15.65

Q4 2017

Shares 673,086 Value ($000) $8,346 Avg Close $15.09 Range $12.15 - $18.60

Q3 2017

Shares 633,265 Value ($000) $11,020 Avg Close $15.08 Range $12.70 - $18.25

Q2 2017

Shares 596,848 Value ($000) $8,803 Avg Close $14.99 Range $12.40 - $17.20

Q1 2017

Shares 572,893 Value ($000) $8,049 Avg Close $14.78 Range $13.12 - $16.65

Q4 2016

Shares 544,897 Value ($000) $9,127 Avg Close $13.60 Range $10.08 - $18.04

Q3 2016

Shares 541,374 Value ($000) $6,004 Avg Close $11.45 Range $9.15 - $13.38

Q2 2016

Shares 518,143 Value ($000) $5,860 Avg Close $14.88 Range $10.10 - $18.70

Q1 2016

Shares 477,727 Value ($000) $6,645 Avg Close $10.91 Range $8.60 - $14.21

Q4 2015

Shares 467,607 Value ($000) $4,798 Avg Close $10.75 Range $9.18 - $11.94

Q3 2015

Shares 471,072 Value ($000) $5,139 Avg Close $11.85 Range $9.87 - $14.61

Q2 2015

Shares 477,528 Value ($000) $7,220 Avg Close $14.92 Range $13.41 - $16.13

Q1 2015

Shares 471,417 Value ($000) $8,231 Avg Close $16.56 Range $14.81 - $17.61

Q4 2014

Shares 457,815 Value ($000) $8,813 Avg Close $17.35 Range $15.18 - $20.19

Q3 2014

Shares 445,483 Value ($000) $8,910 Avg Close $18.97 Range $17.61 - $22.17

Q2 2014

Shares 437,632 Value ($000) $10,039 Avg Close $18.72 Range $16.51 - $21.13

Q1 2014

Shares 430,636 Value ($000) $8,126 Avg Close $16.52 Range $14.52 - $18.45

Q4 2013

Shares 425,821 Value ($000) $8,282 Avg Close $15.93 Range $14.95 - $17.22

Q3 2013

Shares 420,209 Value ($000) $7,530 Avg Close $16.17 Range $14.05 - $17.91

Q2 2013

Shares 418,490 Value ($000) $7,855 Avg Close $15.68 Range $14.54 - $16.71

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	334,973	$1,786	$2.77	$1.75 - $5.82
Q3 2025	336,120	$770	$2.97	$2.16 - $3.99
Q2 2025	337,844	$1,000	$2.59	$1.78 - $3.99
Q1 2025	310,537	$674	$2.21	$1.78 - $2.79
Q4 2024	292,310	$611	$1.90	$1.61 - $2.44
Q3 2024	314,845	$630	$1.68	$0.74 - $2.36
Q2 2024	420,297	$324	$1.67	$0.75 - $2.40
Q1 2024	616,363	$1,338	$2.51	$2.09 - $2.89
Q4 2023	631,157	$1,723	$2.68	$2.44 - $3.02
Q3 2023	632,099	$1,662	$3.29	$2.56 - $4.00
Q2 2023	645,203	$2,052	$2.97	$2.49 - $3.38
Q1 2023	649,431	$1,591	$2.86	$2.15 - $3.45
Q4 2022	660,768	$2	$3.08	$2.26 - $4.06
Q3 2022	659,263	$2,425	$4.09	$3.36 - $4.80
Q2 2022	661,673	$2,561	$4.77	$3.06 - $6.40
Q1 2022	660,448	$4,167	$6.02	$4.96 - $6.67
Q4 2021	647,423	$3,237	$4.91	$4.37 - $5.73
Q3 2021	679,661	$3,194	$5.34	$4.12 - $6.55
Q2 2021	723,146	$4,390	$6.78	$5.52 - $8.19
Q1 2021	702,479	$4,742	$7.33	$5.45 - $8.81
Q4 2020	648,353	$3,553	$4.61	$3.27 - $6.81
Q3 2020	663,354	$2,183	$3.21	$2.70 - $4.31
Q2 2020	695,244	$2,134	$3.21	$2.29 - $4.50
Q1 2020	711,516	$1,779	$2.77	$1.94 - $3.20
Q4 2019	720,251	$2,168	$3.53	$2.85 - $4.24
Q3 2019	745,632	$2,744	$3.75	$3.33 - $4.45
Q2 2019	752,859	$3,034	$3.74	$3.00 - $4.92
Q1 2019	752,959	$2,485	$3.80	$3.02 - $4.64
Q4 2018	760,578	$2,358	$4.20	$2.79 - $6.00
Q3 2018	775,582	$4,576	$8.53	$5.55 - $11.07
Q2 2018	747,324	$7,660	$10.06	$8.49 - $11.35
Q1 2018	715,763	$6,370	$12.00	$8.85 - $15.65
Q4 2017	673,086	$8,346	$15.09	$12.15 - $18.60
Q3 2017	633,265	$11,020	$15.08	$12.70 - $18.25
Q2 2017	596,848	$8,803	$14.99	$12.40 - $17.20
Q1 2017	572,893	$8,049	$14.78	$13.12 - $16.65
Q4 2016	544,897	$9,127	$13.60	$10.08 - $18.04
Q3 2016	541,374	$6,004	$11.45	$9.15 - $13.38
Q2 2016	518,143	$5,860	$14.88	$10.10 - $18.70
Q1 2016	477,727	$6,645	$10.91	$8.60 - $14.21
Q4 2015	467,607	$4,798	$10.75	$9.18 - $11.94
Q3 2015	471,072	$5,139	$11.85	$9.87 - $14.61
Q2 2015	477,528	$7,220	$14.92	$13.41 - $16.13
Q1 2015	471,417	$8,231	$16.56	$14.81 - $17.61
Q4 2014	457,815	$8,813	$17.35	$15.18 - $20.19
Q3 2014	445,483	$8,910	$18.97	$17.61 - $22.17
Q2 2014	437,632	$10,039	$18.72	$16.51 - $21.13
Q1 2014	430,636	$8,126	$16.52	$14.52 - $18.45
Q4 2013	425,821	$8,282	$15.93	$14.95 - $17.22
Q3 2013	420,209	$7,530	$16.17	$14.05 - $17.91
Q2 2013	418,490	$7,855	$15.68	$14.54 - $16.71