SEC Form 4
ARDMORE SHIPPING CORPORATION (ASC) insider trading
In the 12 months to Oct 24, 2026, 5 ASC insiders reported open-market sales of $1.1M across 7 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $1.1M
- 7 filings · 5 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 7
- $152.6K of $1.1M sold (13%)
Who traded ASC, and when
- Sale
- Sale, pre-arranged (10b5-1)
ASC daily close from Oct 24, 2025 to Oct 23, 2026, between $10.45 and $20.13, last $20.03. 7 sale and 0 purchase filings by 5 insiders, marked at their filing dates. Curtis B. McWilliams, Director: sold $386.3K across 2 filings, first filed May 14, 2026, last May 19, 2026. Aideen Siobhan O'Driscoll, SVP & Sr. Dir. of Corp. Svcs: sold $300.5K across 1 filing, first filed May 13, 2026, last May 13, 2026. Kirsi Tikka, Director: sold $227.2K across 1 filing, first filed May 13, 2026, last May 13, 2026. Bart B. Kelleher, President: sold $152.6K across 1 filing, first filed May 6, 2026, last May 6, 2026. Jong Helen Johanna de, Director: sold $66.4K across 2 filings, first filed May 14, 2026, last May 19, 2026.
Largest mark · tap a row for others
Curtis B. McWilliams · Director
Filing 1 of 2 within a week · $386,328 total
Sale $54,760
2,875 shares at $19.05 avg
Filed May 14, 2026 · traded May 12
Close on filing date $18.76
Curtis B. McWilliams · Director
Director
$386.3K soldAideen Siobhan O'Driscoll · SVP & Sr. Dir. of Corp. Svcs
SVP & Sr. Dir. of Corp. Svcs
$300.5K soldKirsi Tikka · Director
Director
$227.2K soldBart B. Kelleher · President
President
$152.6K soldJong Helen Johanna de · Director
Director
$66.4K soldOpen-market trades
7 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Curtis B. McWilliams | Director | $386.3K | — | 2 | — | |
| Aideen Siobhan O'Driscoll | SVP & Sr. Dir. of Corp. Svcs | $300.5K | — | 1 | — | |
| Kirsi Tikka | Director | $227.2K | — | 1 | — | |
| Bart B. Kelleher | President | $152.6K | — | 1 | 100% of sales | |
| Jong Helen Johanna de | Director | $66.4K | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Curtis B. McWilliams Director | Sale | 17,125 | $19.36 | $331.6K | 60,673 | |
traded | Jong Helen Johanna de Director | Sale | 1,534 | $18.93 | $29.0K | 24,793 | |
traded | Curtis B. McWilliams Director | Sale | 2,875 | $19.05 | $54.8K | 77,798 | |
traded | Jong Helen Johanna de Director | Sale | 1,966 | $19.02 | $37.4K | 26,327 | |
traded | Aideen Siobhan O'Driscoll SVP & Sr. Dir. of Corp. Svcs | Sale | 15,848 | $18.96 | $300.5K | 19,613 | |
traded | Kirsi Tikka Director | Sale | 12,000 | $18.93 | $227.2K | 35,471 | |
traded | Bart B. Kelleher President | SalePre-arranged (10b5-1) | 8,000 | $19.07 | $152.6K | 60,039 |
GET /stocks/filings/vX/form-4?tickers=ASC&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ASC"
],
"issuer_cik": "0001577437",
"owner_cik": "0001983553",
"accession_number": "0001225208-26-005489",
"form_type": "4",
"filing_date": "2026-05-19",
"period_of_report": "2026-05-15",
"issuer_name": "Ardmore Shipping Corp",
"issuer_trading_symbol": "ASC",
"owner_name": "de Jong Helen Johanna",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 1534,
"transaction_price_per_share": 18.93,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 24793,
"transaction_value": 29038.62,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price in Column 4 is a weighted average sale price. The prices actually received ranged from $18.85 to $18.93. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range."
}
]
},
{
"tickers": [
"ASC"
],
"issuer_cik": "0001577437",
"owner_cik": "0001313188",
"accession_number": "0001225208-26-005488",
"form_type": "4",
"filing_date": "2026-05-19",
"period_of_report": "2026-05-15",
"issuer_name": "Ardmore Shipping Corp",
"issuer_trading_symbol": "ASC",
"owner_name": "McWilliams Curtis B",
"is_director": true,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-05-18",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 16277,
"transaction_price_per_share": 19.38,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 60673,
"transaction_value": 315448.26,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F2",
"description": "The price in Column 4 is a weighted average sale price. The prices actually received ranged from $19.03 to $19.90. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 6 records
- Option exercises5 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ASC every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.