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AM · Antero Midstream Corp

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Market Cap
$10.66B
Shares
474.67M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 534
Total Value: $6,536,760,101
Total Shares: 287,330,126
Showing 1–100 of 552 holdings by value · page 1 of 6

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 534 13F filers · Δ vs Mar 31, 2026
Top Holder
13.3%
Sep 2023 → Jun 2026 · range 13.1% – 14.8%
+0.1 pts
Top 5
36.1%
Sep 2023 → Jun 2026 · range 36.1% – 49.1%
−0.5 pts
Top 10
51.4%
Sep 2023 → Jun 2026 · range 51.4% – 61.5%
−1.7 pts
HHI
394
Sep 2023 → Jun 2026 · range 394 – 654
Broadly held−11

Quarterly Activity

vs Mar 31, 2026
New
65
Increased
191
Decreased
179
Sold Out
52
Unchanged
99
Holder count: +13
Institutional value: +1.6%
Shares held: +1.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 552
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1623925 CUSIP 03676B102 13F (30d) 350 filings 331 filers Visit website Investor relations