SEC Form 4
Antero Midstream Corporation (AM) insider trading
In the 12 months to Oct 23, 2026, 4 AM insiders reported open-market sales of $5.3M across 8 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $5.3M
- 8 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 8
- $2.2M of $5.3M sold (42%)
Who traded AM, and when
- Sale
- Sale, pre-arranged (10b5-1)
AM daily close from Oct 23, 2025 to Oct 23, 2026, between $17.15 and $23.60, last $20.85. 8 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Michael N. Kennedy, Officer (see filing): sold $2.2M across 1 filing, first filed May 4, 2026, last May 4, 2026. Yvette K. Schultz, Officer (see filing): sold $2.1M across 2 filings, first filed Mar 10, 2026, last May 4, 2026. Sheri Pearce, Officer (see filing): sold $670.8K across 2 filings, first filed Mar 10, 2026, last Aug 5, 2026. Brooks J. Klimley, Director: sold $310.1K across 3 filings, first filed Dec 16, 2025, last Aug 6, 2026.
Largest mark · tap a row for others
Michael N. Kennedy · Officer (see filing)
Sale $2,192,000
100,000 shares at $21.92 avg
Filed May 4, 2026
Pre-arranged (10b5-1) · close on filing date $21.99
Michael N. Kennedy · Officer (see filing)
Officer (see filing)
$2.2M soldYvette K. Schultz · Officer (see filing)
Officer (see filing)
$2.1M soldSheri Pearce · Officer (see filing)
Officer (see filing)
$670.8K soldBrooks J. Klimley · Director
Director
$310.1K soldOpen-market trades
8 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Michael N. Kennedy | Officer (see filing) | $2.2M | — | 1 | 100% of sales | |
| Yvette K. Schultz | Officer (see filing) | $2.1M | — | 2 | — | |
| Sheri Pearce | Officer (see filing) | $670.8K | — | 2 | — | |
| Brooks J. Klimley | Director | $310.1K | — | 3 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Brooks J. Klimley Director | Sale | 5,000 | $21.27 | $106.4K | 68,204 | |
traded | Sheri Pearce Officer (see filing) | Sale | 16,000 | $22.01 | $352.2K | 83,900 | |
traded | Michael N. Kennedy Officer (see filing) | SalePre-arranged (10b5-1) | 100,000 | $21.92 | $2.2M | 1,500,594 | |
traded | Yvette K. Schultz Officer (see filing) | Sale | 69,269 | $21.90 | $1.5M | 580,565 | |
traded | Brooks J. Klimley Director | Sale | 5,000 | $23.16 | $115.8K | 69,680 | |
traded | Yvette K. Schultz Officer (see filing) | Sale | 25,000 | $22.81 | $570.3K | 649,834 | |
traded | Sheri Pearce Officer (see filing) | Sale | 14,000 | $22.76 | $318.6K | 99,900 | |
traded | Brooks J. Klimley Director | Sale | 5,000 | $17.59 | $88.0K | 72,622 |
GET /stocks/filings/vX/form-4?tickers=AM&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"AM"
],
"issuer_cik": "0001623925",
"owner_cik": "0001235158",
"accession_number": "0001104659-26-092194",
"form_type": "4",
"filing_date": "2026-08-06",
"period_of_report": "2026-08-06",
"issuer_name": "Antero Midstream Corp",
"issuer_trading_symbol": "AM",
"owner_name": "KLIMLEY BROOKS J",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common stock, par value $0.01 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-06",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 5000,
"transaction_price_per_share": 21.27,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 68204,
"transaction_value": 106350,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.21 to $21.30, inclusive. The reporting person undertakes to provide to Antero Midstream Corporation (the \"Issuer\"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1)."
}
]
},
{
"tickers": [
"AM"
],
"issuer_cik": "0001623925",
"owner_cik": "0001808080",
"accession_number": "0001104659-26-091154",
"form_type": "4",
"filing_date": "2026-08-05",
"period_of_report": "2026-08-04",
"issuer_name": "Antero Midstream Corp",
"issuer_trading_symbol": "AM",
"owner_name": "Pearce Sheri",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "See Remarks",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common stock, par value $0.01 per share",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-08-04",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 16000,
"transaction_price_per_share": 22.01,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 83900,
"transaction_value": 352160,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $21.96 to $22.06, inclusive. The reporting person undertakes to provide to Antero Midstream Corporation (the \"Issuer\"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1)."
},
{
"id": "F2",
"description": "Includes 81,755 shares of common stock, par value $0.01 per share, of the Issuer subject to previously granted restricted stock units that remain subject to vesting."
}
],
"remarks": "Senior Vice President - Accounting and Chief Accounting Officer"
}
]
}
// 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) · 50 records
- Tax withholding8 records
- Grants and awards40 records
- Gifts2 records
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 AM 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.