AM
Antero Midstream Corp
Natural Gas TransmissionNYSELarge accelerated filer
Total Trades
14
Buys
4
Sells
10
Largest Trade
$1M+
Insiders
7
Institutional Funds
415
Inst. Value
$1M+
Activist Filings
6
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| KLIMLEY BROOKS J | Director | SELL | $50K–$100K | 5K | $17.59 | Dec 17, 2025 |
| KLIMLEY BROOKS J | Director | SELL | $50K–$100K | 5K | $18.88 | May 29, 2025 |
| KLIMLEY BROOKS J | Director | SELL | $100K–$500K | 10K | $14.66 | Nov 7, 2024 |
| Pearce Sheri | See Remarks | SELL | $100K–$500K | 24K | $14.59 | Aug 22, 2024 |
| MCARDLE JANINE J | Director | BUY | $50K–$100K | 6K | $11.96 | Aug 22, 2023 |
| KLIMLEY BROOKS J | Director | SELL | $50K–$100K | 5K | $12.01 | Aug 9, 2023 |
| Pearce Sheri | See Remarks | SELL | $100K–$500K | 17K | $12.05 | Aug 9, 2023 |
| Pearce Sheri | See Remarks | SELL | $100K–$500K | 20K | $10.25 | Jun 1, 2023 |
| Kennedy Michael N. | See Remarks | SELL | $1M+ | 300K | $10.47 | May 6, 2023 |
| KEYTE DAVID H | Director | BUY | $100K–$500K | 10K | $10.01 | Mar 15, 2023 |
| Keenan W Howard JR | Director | SELL | $1M+ | 793K | $10.33 | May 26, 2022 |
| Keenan W Howard JR | Director | SELL | $1M+ | 826K | $10.24 | May 20, 2022 |
| KEYTE DAVID H | Director | BUY | $50K–$100K | 10K | $9.80 | May 12, 2022 |
| Krueger Brendan E. | See Remarks | BUY | $100K–$500K | 10K | $10.53 | May 5, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 415 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VANGUARD GROUP INC | 33.6M | $1M+ | SH |
| TORTOISE CAPITAL ADVISORS, L.L.C. | 11.4M | $1M+ | SH |
| STATE STREET CORP | 11.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 9.3M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 8.3M | $1M+ | SH |
| Neuberger Berman Group LLC | 7.4M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 3.8M | $1M+ | SH |
| NORGES BANK | 3.8M | $1M+ | SH |
| Clearbridge Investments, LLC | 3.6M | $1M+ | SH |
| BlackRock, Inc. | 3.6M | $1M+ | SH |
| Boston Trust Walden Corp | 2.8M | $1M+ | SH |
| WESTWOOD HOLDINGS GROUP INC | 2.6M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 2.3M | $1M+ | SH |
| BROOKFIELD Corp /ON/ | 2.2M | $1M+ | SH |
| MILLER HOWARD INVESTMENTS INC /NY | 2.0M | $1M+ | SH |
| SIR Capital Management, L.P. | 1.8M | $1M+ | SH |
| RR Advisors, LLC | 1.7M | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 1.6M | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 1.6M | $1M+ | SH |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 1.4M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Nov 6, 2025
4.7%
22.7M shares
SC 13G/A · Aug 7, 2025
5.3%
25.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
7.4%
35.5M shares
SC 13G/A · Jan 25, 2024
8.0%
38.4M shares
SC 13G/A · Feb 3, 2023
8.1%
38.9M shares
SC 13G/A · Feb 3, 2023
7.0%
33.3M shares