Ampco Pittsburgh (AP)
Ampco Pittsburgh on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on NYSE, classified by the SEC as pumps & pumping equipment.
839K
Short interest
settlement 2026-09-30
9.0
Days to cover
-5.6 days vs prior
68.4%
Short share of volume
2026-10-12
170
Fails to deliver
settlement 2026-08-31
Wed 11 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-12.
Short interest
FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in AP is 839,351 shares, down 1,456 shares over the last month. Over the last 48 readings it ranged from 22,040 shares (30 January 2026) to 861,287 shares (15 September 2026). The latest reading sits at the top of that range. At the reported average volume of 93K shares a day that is 9.0 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/ap" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 839,351 | -2.5% | 93,289 | 9.00 |
| 2026-09-15 | 861,287 | +2.4% | 59,054 | 14.58 |
| 2026-08-31 | 840,807 | +1.9% | 75,376 | 11.15 |
| 2026-08-14 | 825,266 | +1.0% | 121,961 | 6.77 |
| 2026-07-31 | 817,073 | +20.6% | 125,168 | 6.53 |
| 2026-07-15 | 677,680 | +14.7% | 255,654 | 2.65 |
| 2026-06-30 | 590,728 | +108.5% | 346,271 | 1.71 |
| 2026-06-15 | 283,348 | -21.1% | 156,138 | 1.81 |
| 2026-05-29 | 359,250 | -19.0% | 151,923 | 2.36 |
| 2026-05-15 | 443,478 | -2.4% | 160,769 | 2.76 |
| 2026-04-30 | 454,475 | +10.4% | 156,528 | 2.90 |
| 2026-04-15 | 411,507 | -1.0% | 133,728 | 3.08 |
| 2026-03-31 | 415,673 | +19.9% | 376,584 | 1.10 |
| 2026-03-13 | 346,709 | -16.0% | 240,917 | 1.44 |
| 2026-02-27 | 412,932 | +154.8% | 324,465 | 1.27 |
| 2026-02-13 | 162,044 | +635.2% | 385,624 | 1.00 |
| 2026-01-30 | 22,040 | -35.5% | 190,424 | 1.00 |
| 2026-01-15 | 34,199 | -30.9% | 266,788 | 1.00 |
| 2025-12-31 | 49,461 | -28.1% | 249,188 | 1.00 |
| 2025-12-15 | 68,748 | +55.6% | 206,228 | 1.00 |
| 2025-11-28 | 44,168 | -52.8% | 182,332 | 1.00 |
| 2025-11-14 | 93,487 | -11.6% | 189,793 | 1.00 |
| 2025-10-31 | 105,793 | -15.7% | 55,095 | 1.92 |
| 2025-10-15 | 125,472 | -15.5% | 44,662 | 2.81 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 12 October 2026, the short share of AP volume is 68.4%, up 31.7 points over the last five sessions. Over the last 30 readings it ranged from 27.1% (7 October 2026) to 78.1% (2 September 2026). The latest reading is 10.7 points above the 30-session average of 57.6%, on 13K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-12 | 9K | 13K | 68.4% | 0 |
| 2026-10-09 | 9K | 14K | 62.1% | 0 |
| 2026-10-08 | 10K | 20K | 49.4% | 0 |
| 2026-10-07 | 8K | 30K | 27.1% | 23 |
| 2026-10-06 | 11K | 28K | 40.8% | 100 |
| 2026-10-05 | 15K | 41K | 36.7% | 0 |
| 2026-10-02 | 28K | 67K | 41.1% | 2,169 |
| 2026-10-01 | 30K | 48K | 62.1% | 4,608 |
| 2026-09-30 | 24K | 44K | 54.4% | 0 |
| 2026-09-29 | 14K | 24K | 58.0% | 0 |
| 2026-09-28 | 18K | 28K | 66.2% | 0 |
| 2026-09-25 | 21K | 43K | 49.3% | 982 |
| 2026-09-24 | 23K | 45K | 50.8% | 125 |
| 2026-09-23 | 26K | 47K | 56.1% | 0 |
| 2026-09-22 | 26K | 43K | 60.0% | 0 |
| 2026-09-21 | 18K | 34K | 54.5% | 0 |
| 2026-09-18 | 12K | 20K | 58.9% | 0 |
| 2026-09-17 | 13K | 20K | 65.7% | 390 |
| 2026-09-16 | 12K | 17K | 69.9% | 50 |
| 2026-09-15 | 12K | 20K | 59.2% | 21 |
| 2026-09-14 | 21K | 31K | 67.2% | 0 |
| 2026-09-11 | 8K | 14K | 58.4% | 65 |
| 2026-09-10 | 12K | 19K | 65.0% | 25 |
| 2026-09-09 | 15K | 19K | 78.0% | 0 |
| 2026-09-08 | 10K | 15K | 66.3% | 0 |
| 2026-09-04 | 16K | 30K | 53.7% | 0 |
| 2026-09-03 | 11K | 15K | 68.7% | 0 |
| 2026-09-02 | 13K | 17K | 78.1% | 0 |
| 2026-09-01 | 29K | 45K | 63.7% | 961 |
| 2026-08-31 | 13K | 32K | 39.7% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 31 August 2026, the fails-to-deliver balance in AP is 170 shares, up 161 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (4 February 2026) to 13,295 shares (29 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-08-31 | 170 | $8.86 | $2K |
| 2026-08-27 | 9 | $8.93 | $80 |
| 2026-08-26 | 2,635 | $8.82 | $23K |
| 2026-08-25 | 1,485 | $8.52 | $13K |
| 2026-08-20 | 5 | $8.92 | $45 |
| 2026-08-11 | 335 | $8.67 | $3K |
| 2026-07-28 | 11 | $8.69 | $96 |
| 2026-07-14 | 179 | $7.69 | $1K |
| 2026-07-13 | 5,171 | $7.85 | $41K |
| 2026-07-10 | 28 | $7.64 | $214 |
| 2026-07-08 | 35 | $7.38 | $258 |
| 2026-07-02 | 361 | $8.27 | $3K |
| 2026-06-30 | 16 | $8.79 | $141 |
| 2026-06-29 | 13,295 | $9.35 | $124K |
| 2026-06-18 | 3,676 | $10.88 | $40K |
| 2026-06-15 | 96 | $11.83 | $1K |
| 2026-04-28 | 5,907 | $10.58 | $62K |
| 2026-04-14 | 8 | $8.76 | $70 |
| 2026-04-07 | 1,470 | $7.12 | $10K |
| 2026-03-23 | 1,179 | $6.86 | $8K |
| 2026-03-20 | 274 | $6.90 | $2K |
| 2026-02-25 | 4,955 | $9.17 | $45K |
| 2026-02-24 | 4,927 | $8.77 | $43K |
| 2026-02-18 | 4,893 | $7.60 | $37K |
| 2026-02-17 | 4,899 | $7.79 | $38K |
| 2026-02-04 | 1 | $6.23 | $6 |
| 2026-02-03 | 13,166 | $5.66 | $75K |
| 2026-01-23 | 12,509 | $6.00 | $75K |
| 2025-12-30 | 1,646 | $5.04 | $8K |
| 2025-12-29 | 1,000 | $4.65 | $5K |
Insider trades
SEC Form 4, newest first, 50 of 100 shown. JSONNo open-market insider trades were reported for AP in the last 90 days. The most recent filings are listed below. Latest filing: McNair Darrell L (Director) on 2026-08-27.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-27 | McNair Darrell L | Director | Gift | 6K | $0.00 | $0 | 66K |
| 2026-06-25 | Lyon Samuel | President of Union Electric | Sell | 10K | $9.82 | $93K | 181K |
| 2026-06-18 | Lyon Samuel | President of Union Electric | Sell | 547 | $11.30 | $6K | 191K |
| 2026-05-19 | McBrayer Brett | Chief Executive Officer | Buy | 3K | $9.03 | $30K | 558K |
| 2026-05-15 | McNair Darrell L | Director | Grant | 7K | $0.00 | $0 | 71K |
| 2026-05-15 | PAUL LAURENCE E | Director | Grant | 7K | $0.00 | $0 | 92K |
| 2026-05-15 | GERMAN MICHAEL I | Director | Grant | 7K | $0.00 | $0 | 229K |
| 2026-05-15 | LIEBERMAN WILLIAM K | Director | Grant | 7K | $0.00 | $0 | 58K |
| 2026-05-15 | Fessenden Elizabeth Anne | Director | Grant | 7K | $0.00 | $0 | 127K |
| 2026-05-15 | DeMichiei Robert | Director | Grant | 7K | $0.00 | $0 | 86K |
| 2026-05-15 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Grant | 11K | $0.00 | $0 | 83K |
| 2026-05-15 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Tax withholding | 8K | $10.85 | $89K | 72K |
| 2026-05-15 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Tax withholding | 2K | $10.85 | $27K | 80K |
| 2026-05-15 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Tax withholding | 2K | $10.85 | $24K | 83K |
| 2026-05-15 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Tax withholding | 1K | $10.85 | $15K | 85K |
| 2026-05-15 | Lyon Samuel | President of Union Electric | Grant | 15K | $0.00 | $0 | 191K |
| 2026-05-15 | Lyon Samuel | President of Union Electric | Tax withholding | 18K | $10.85 | $197K | 176K |
| 2026-05-15 | Lyon Samuel | President of Union Electric | Tax withholding | 4K | $10.85 | $38K | 194K |
| 2026-05-15 | Lyon Samuel | President of Union Electric | Tax withholding | 3K | $10.85 | $34K | 198K |
| 2026-05-15 | Lyon Samuel | President of Union Electric | Tax withholding | 3K | $10.85 | $33K | 201K |
| 2026-05-15 | McBrayer Brett | Chief Executive Officer | Grant | 41K | $0.00 | $0 | 554K |
| 2026-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 47K | $10.85 | $506K | 513K |
| 2026-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 8K | $10.85 | $84K | 560K |
| 2026-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 9K | $10.85 | $93K | 568K |
| 2026-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 9K | $10.85 | $102K | 576K |
| 2026-03-19 | McBrayer Brett | Chief Executive Officer | Buy | 8K | $6.67 | $50K | 586K |
| 2026-03-04 | Anderson David George | VP, CFO & Treasurer, Pres. ALS | Grant | 20K | $0.00 | $0 | 86K |
| 2026-03-04 | Lyon Samuel | President of Union Electric | Grant | 42K | $0.00 | $0 | 204K |
| 2026-03-04 | McBrayer Brett | Chief Executive Officer | Grant | 130K | $0.00 | $0 | 578K |
| 2025-12-01 | McBrayer Brett | Chief Executive Officer | Buy | 19K | $2.58 | $49K | 449K |
| 2025-11-19 | McNair Darrell L | Director | Buy | 3K | $2.52 | $8K | 64K |
| 2025-11-17 | McNair Darrell L | Director | Buy | 10K | $2.68 | $27K | 61K |
| 2025-11-17 | GERMAN MICHAEL I | Director | Buy | 40K | $2.65 | $106K | 222K |
| 2025-11-17 | Louis Berkman Investment CO | 10% owner | Buy | 93K | $2.67 | $248K | 3.1M |
| 2025-05-15 | ABEL JAMES J | Director | Grant | 13K | $0.00 | $0 | 151K |
| 2025-05-15 | Fessenden Elizabeth Anne | Director | Grant | 13K | $0.00 | $0 | 119K |
| 2025-05-15 | DeMichiei Robert | Director | Grant | 13K | $0.00 | $0 | 78K |
| 2025-05-15 | GERMAN MICHAEL I | Director | Grant | 13K | $0.00 | $0 | 182K |
| 2025-05-15 | LIEBERMAN WILLIAM K | Director | Grant | 13K | $0.00 | $0 | 51K |
| 2025-05-15 | McNair Darrell L | Director | Grant | 13K | $0.00 | $0 | 51K |
| 2025-05-15 | PAUL LAURENCE E | Director | Grant | 13K | $0.00 | $0 | 84K |
| 2025-05-15 | McBrayer Brett | Chief Executive Officer | Grant | 78K | $0.00 | $0 | 430K |
| 2025-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 12K | $2.26 | $26K | 351K |
| 2025-05-15 | McBrayer Brett | Chief Executive Officer | Tax withholding | 10K | $2.26 | $24K | 363K |
| 2025-05-15 | McAuley Michael G | Senior V.P., CFO & Treasurer | Grant | 27K | $0.00 | $0 | 176K |
| 2025-05-15 | McAuley Michael G | Senior V.P., CFO & Treasurer | Tax withholding | 2K | $2.26 | $5K | 149K |
| 2025-05-15 | McAuley Michael G | Senior V.P., CFO & Treasurer | Tax withholding | 2K | $2.26 | $5K | 151K |
| 2025-05-15 | Lyon Samuel | President of Union Electric | Tax withholding | 3K | $2.26 | $8K | 137K |
| 2025-05-15 | Lyon Samuel | President of Union Electric | Grant | 25K | $0.00 | $0 | 162K |
| 2025-05-15 | Anderson David George | President, Air & Liquid Systms | Tax withholding | 1K | $2.26 | $3K | 48K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON4 holders report 5% or more of AP in their latest filing, all on Schedule 13D (active intent). The largest reported stake is The Louis Berkman Investment Company at 15.4% of the class (3,127,792 shares), filed 2025-11-26 for an event on 2025-11-17.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G/Ano. 7 | Ameriprise Financial, Inc.parent holding company | 906K | 4.5% | 2026-06-30 |
| 2026-08-14 | 13G/Ano. 7 | Columbia Management Investment Advisers, LLCinvestment adviser | 906K | 4.5% | 2026-06-30 |
| 2026-01-22 | 13G/Ano. 1 | RUTABAGA CAPITAL MANAGEMENT LLC/MAinvestment adviser | 0 | 0.0% | 2025-12-31 |
| 2025-12-19 | 13D | Galloway Capital Partners, LLCother entity | 1.1M | 5.2% | 2025-12-17 |
| 2025-12-19 | 13D | Galloway Capital, LPindividual | 1.1M | 5.2% | 2025-12-17 |
| 2025-12-19 | 13D | GALLOWAY BRUCEindividual | 1.1M | 5.2% | 2025-12-17 |
| 2025-11-26 | 13D/Ano. 8 | The Louis Berkman Investment Companycorporation | 3.1M | 15.4% | 2025-11-17 |
| 2025-11-14 | 13D/Ano. 3 | DiSanto Fredrick D.individual | 857K | 4.2% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | Ancora Holdings Group, LLCcorporation | 784K | 3.9% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | Ancora Alternatives LLCinvestment adviser, other entity | 784K | 3.9% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | ANCORA MERLIN INSTITUTIONAL, LPpartnership | 356K | 1.8% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | Ancora Catalyst Institutional, LPpartnership | 361K | 1.8% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | Ancora Merlin, LPpartnership | 36K | 0.2% | 2025-11-13 |
| 2025-11-14 | 13D/Ano. 3 | Ancora Catalyst, LPpartnership | 31K | 0.2% | 2025-11-13 |
13F holders
Tracked managers holding AP at their latest 13F. JSON3 of the 30 tracked managers held AP at their latest 13F, $4.2M in total at quarter-end prices. Renaissance Technologies is the largest at $3.6M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 414K | $3.6M | 0.00% | -9K |
| Citadel Advisors | 2026-06-30 | 51K | $445K | 0.00% | +37K |
| Millennium Management | 2026-06-30 | 20K | $171K | 0.00% | -141K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Ampco Pittsburgh in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Ampco Pittsburgh (AP), SEC CIK 6176, listed on NYSE, classified by the SEC as pumps & pumping equipment. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-08-31.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-11.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-27.JSON and CSV
- Company record
- EDGAR filing index for CIK 6176Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Frequently Asked Questions
How much of AP is sold short?
What is AP's daily short volume?
Does AP have fails to deliver?
Are AP insiders buying or selling?
Who owns 5% or more of AP?
Which tracked 13F managers own AP?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.