Louis Berkman Investment CO

10% owner at AMPCO PITTSBURGH CORP · on record since Sep 27, 2007
Owned by Founder at AMPCO PITTSBURGH CORP · on record since Aug 6, 2007

Insider trading activity of Louis Berkman Investment CO

Transactions on record: 5,385; since Aug 3, 2007

Open-market buys: 19; $1.9M

Open-market sells: 5,363; $37.9M

Companies traded: 1; last filing Nov 26, 2025

Figures computed from official regulatory filings — .

Companies where Louis Berkman Investment CO has traded

AMPCO PITTSBURGH CORP5385 tx · $39.8M · Nov 26, 2025

Track record of Louis Berkman Investment CO

Statistical track record

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Open-market buys: 19

Last buy: Nov 17, 2025

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Transaction history of Louis Berkman Investment CO

Co-insiders of Louis Berkman Investment CO

2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. CrawfordAMPCO PITTSBURGH CORP
ABEL JAMES JAMPCO PITTSBURGH CORP
Altor Fund II GP LtdAMPCO PITTSBURGH CORP
Altor Holdings LtdAMPCO PITTSBURGH CORP
Altor II Aggregator Topco LtdAMPCO PITTSBURGH CORP
Anderson David GeorgeAMPCO PITTSBURGH CORP
APPEL ROBERT JAMPCO PITTSBURGH CORP
Associated Capital Group, Inc.AMPCO PITTSBURGH CORP
BERKMAN LOUISAMPCO PITTSBURGH CORP

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
AMPCO PITTSBURGH CORPListing on record	Nov 26, 2025	Buy	93,000	2.67 USD	$248.3K	conv 48ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Nov 23, 2022	Buy	551,604	2.50 USD	$1.4M	conv 65Unusual sizeFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	OtherD (derivative)	1,161,427	—	n/a (No price was disclosed in the filing)		SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	Other	1,161,427	—	n/a (No price was disclosed in the filing)		SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	OtherD (derivative)	-2,601,762	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AMPCO PITTSBURGH CORPListing on record	May 28, 2019	Buy	4,745	4.34 USD	$20.6K	conv 22Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 23, 2019	Buy	10,000	4.31 USD	$43.1K	conv 33Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 22, 2019	Buy	10,000	4.31 USD	$43.1K	conv 35Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-500	4.03 USD	$2K	conv 28Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-8,226	4.36 USD	$35.9K	conv 41Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-1,585	4.05 USD	$6.4K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-9,000	4.01 USD	$36.1K	conv 43Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-500	4.02 USD	$2K	conv 28Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-1,500	4.45 USD	$6.7K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 20, 2019	Buy	-1,585	4.05 USD	$6.4K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 20, 2019	Buy	-8,226	4.36 USD	$35.9K	conv 47ClusterUnusual size	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-9,000	4.01 USD	$36.1K	conv 69ClusterUnusual size+1	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-500	4.02 USD	$2K	conv 40ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-500	4.03 USD	$2K	conv 40ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Jul 31, 2018	Sell	-100	11.00 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Jun 1, 2018	Sell	-100	11.05 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Jun 1, 2018	Sell	-579	11.00 USD	$6.4K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 25, 2018	Sell	-1,767	11.00 USD	$19.4K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 24, 2018	Sell	-100	11.20 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 24, 2018	Sell	-200	11.05 USD	$2.2K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
AMPCO PITTSBURGH CORPListing on record	Nov 26, 2025	Buy	93,000	2.67 USD	$248.3K	conv 48ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Nov 23, 2022	Buy	551,604	2.50 USD	$1.4M	conv 65Unusual sizeFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	OtherD (derivative)	1,161,427	—	n/a (No price was disclosed in the filing)		SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	Other	1,161,427	—	n/a (No price was disclosed in the filing)		SEC
AMPCO PITTSBURGH CORPListing on record	Sep 18, 2020	OtherD (derivative)	-2,601,762	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
AMPCO PITTSBURGH CORPListing on record	May 28, 2019	Buy	4,745	4.34 USD	$20.6K	conv 22Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 23, 2019	Buy	10,000	4.31 USD	$43.1K	conv 33Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 22, 2019	Buy	10,000	4.31 USD	$43.1K	conv 35Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-500	4.03 USD	$2K	conv 28Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-8,226	4.36 USD	$35.9K	conv 41Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-1,585	4.05 USD	$6.4K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-9,000	4.01 USD	$36.1K	conv 43Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-500	4.02 USD	$2K	conv 28Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 21, 2019	Buy	-1,500	4.45 USD	$6.7K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 20, 2019	Buy	-1,585	4.05 USD	$6.4K	conv 26Cluster	SEC
AMPCO PITTSBURGH CORPListing on record	May 20, 2019	Buy	-8,226	4.36 USD	$35.9K	conv 47ClusterUnusual size	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-9,000	4.01 USD	$36.1K	conv 69ClusterUnusual size+1	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-500	4.02 USD	$2K	conv 40ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	May 17, 2019	Buy	-500	4.03 USD	$2K	conv 40ClusterFirst in 12mo	SEC
AMPCO PITTSBURGH CORPListing on record	Jul 31, 2018	Sell	-100	11.00 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Jun 1, 2018	Sell	-100	11.05 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Jun 1, 2018	Sell	-579	11.00 USD	$6.4K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 25, 2018	Sell	-1,767	11.00 USD	$19.4K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 24, 2018	Sell	-100	11.20 USD	$1.1K		SEC
AMPCO PITTSBURGH CORPListing on record	Apr 24, 2018	Sell	-200	11.05 USD	$2.2K		SEC