Estimated market cap $151.84MShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of Nov 5, 2026, last close Nov 13, 2026.20.66M shares, shares as of Nov 5, 2026CIK 6176The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
7 buys · 2 sells
$99.5K sold, open market
Congress trades, 24 mo
—
No disclosed trades
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
Ask your AI:
Latest 10-Q
What changed in Ampco-Pittsburgh Corporation's latest quarterly report, compared with the one before.
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Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
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13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
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Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
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Lobbying
What Ampco-Pittsburgh Corporation and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
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Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
58
41.5% of shares · 26 added
Latest 10-Q
Q3 2026
What changed in Ampco-Pittsburgh Corporation's latest quarterly report, compared with the one before.
Filed Nov 10, 2026 · Quarter ended Sep 30, 2026
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AI summary of changes vs the prior report. Written by AI from the paragraphs that changed, and checked against them. This is information, not investment advice.
Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No open-market insider trades reported since Jun 25, 2026. Insiders have two business days to file.
Recent insider trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
58 funds report AP. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds own 56% of shares (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 11.51M reported shares by 20.66M shares, from the company’s SEC filing as of Aug 6, 2026.
85 funds hold the stock.
Q3 2026: 41% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 202542%
Q3 202541%
Q4 202541%
Q1 202650%
Q2 202656%
Q3 2026 (so far)41%
Q3 2026. 11 new, 26 added to, 12 trimmed, 38 exited since Q2 2026.
One of these funds reports its values in thousands of dollars; its figures are shown in dollars.
Download CSVEvery fund that holds AP, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
No recent congressional trades for this company.
Lobbying
What Ampco-Pittsburgh Corporation and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report
Funds holding the stock by quarter
Q2 2013
61
—
6.39M
$119.9M
Q3 2013
66
+5
6.06M
$108.6M
Q4 2013
69
+3
6.01M
$116.8M
Q1 2014
69
0
5.53M
$104.4M
Q2 2014
80
+11
6.33M
$145.1M
Q3 2014
74
-6
6.24M
$124.9M
Q4 2014
67
-7
6.30M
$121.3M
Q1 2015
68
+1
6.44M
$112.6M
Q2 2015
61
-7
6.10M
$92.1M
Q3 2015
56
-5
6.12M
$66.7M
Q4 2015
56
0
6.02M
$62.0M
Q1 2016
59
+3
5.98M
$83.2M
Q2 2016
66
+7
6.65M
$75.2M
Q3 2016
60
-6
6.66M
$73.9M
Q4 2016
64
+4
6.97M
$116.8M
Q1 2017
58
-6
6.95M
$97.6M
Q2 2017
58
0
7.05M
$104.0M
Q3 2017
65
+7
7.16M
$124.6M
Q4 2017
62
-3
6.96M
$86.3M
Q1 2018
57
-5
7.22M
$64.3M
Q2 2018
53
-4
6.69M
$68.6M
Q3 2018
53
0
6.39M
$37.7M
Q4 2018
42
-11
6.00M
$18.6M
Q1 2019
42
0
6.07M
$20.0M
Q2 2019
40
-2
5.92M
$23.8M
Q3 2019
39
-1
5.93M
$21.8M
Q4 2019
31
-8
5.93M
$17.8M
Q1 2020
29
-2
5.80M
$14.5M
Q2 2020
34
+5
5.40M
$16.6M
Q3 2020
35
+1
7.79M
$25.6M
Q4 2020
40
+5
7.43M
$40.7M
Q1 2021
39
-1
8.24M
$96.8M
Q2 2021
37
-2
8.12M
$49.4M
Q3 2021
37
0
7.83M
$36.8M
Q4 2021
34
-3
8.36M
$41.8M
Q1 2022
32
-2
8.95M
$56.5M
Q2 2022
34
+2
8.90M
$34.4M
Q3 2022
35
+1
9.03M
$33.2M
Q4 2022
36
+1
9.09M
$22.8M
Q1 2023
38
+2
9.07M
$22.2M
Q2 2023
35
-3
8.98M
$28.6M
Q3 2023
37
+2
8.98M
$23.6M
Q4 2023
35
-2
8.76M
$24.2M
Q1 2024
34
-1
9.06M
$27.3M
Q2 2024
42
+8
8.78M
$6.8M
Q3 2024
32
-10
8.35M
$16.7M
Q4 2024
37
+5
8.34M
$17.4M
Q1 2025
38
+1
8.37M
$18.2M
Q2 2025
39
+1
8.56M
$25.3M
Q3 2025
36
-3
8.29M
$19.0M
Q4 2025
43
+7
8.38M
$44.7M
Q1 2026
63
+20
10.26M
$69.0M
Q2 2026
85
+22
11.51M
$99.6M
Q3 2026
58
-27
8.57M
$75.7M
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (032037103). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.