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Antero Midstream
AM

479 hedge funds and large institutions have $5.23B invested in Antero Midstream in 2025 Q2 according to their latest regulatory filings, with 69 funds opening new positions, 188 increasing their positions, 143 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed

268% more call options, than puts

Call options by funds: $58.7M | Put options by funds: $16M

92% more first-time investments, than exits

New positions opened: 69 | Existing positions closed: 36

31% more repeat investments, than reductions

Existing positions increased: 188 | Existing positions reduced: 143

7% more capital invested

Capital invested by funds: $4.88B → $5.23B (+$346M)

6% more funds holding

Funds holding: 453 → 479 (+26)

0.9% more ownership

Funds ownership: 56.67% → 57.57% (+0.9%)

14% less funds holding in top 10

Funds holding in top 10: 7 → 6 (-1)

Holders
479
Holders Change
+26
Holders Change %
+5.74%
% of All Funds
6.31%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.08%
New
69
Increased
188
Reduced
143
Closed
36
Calls
$58.7M
Puts
$16M
Net Calls
+$42.8M
Net Calls Change
+$4.99M

Top Buyers

Rank Fund Capital Flow
1
Blackstone Inc
Blackstone Inc
New York
+$39.7M
2
Citadel Advisors
Citadel Advisors
Florida
+$29.2M
3
TCA
Tortoise Capital Advisors
Kansas
+$28.8M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$25.8M
5
Morgan Stanley
Morgan Stanley
New York
+$19.4M

Top Sellers

Rank Fund Capital Flow
1
Invesco
Invesco
Georgia
-$94.7M
2
SCM
SIR Capital Management
New York
-$21.3M
3
Millennium Management
Millennium Management
New York
-$16.9M
4
REAM
Ripple Effect Asset Management
New York
-$16.2M
5
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$13.5M
Name Holding Trade Value Shares
Change 		Change in
Stake
JWCA
501
J.W. Cole Advisors
Florida
– -$205K -11,400 Closed
SWP
502
Stratos Wealth Partners
Ohio
– -$192K -10,649 Closed
PAS
503
Park Avenue Securities
New York
– -$187K -10,388 Closed
CS
504
Cannell & Spears
New York
– -$180K -10,000 Closed
QCG
505
Quadrant Capital Group
Ohio
– -$118K -6,537 Closed
SW
506
SVB Wealth
Massachusetts
– -$115K -6,382 Closed
QC
507
Quent Capital
New York
– -$25K -1,389 Closed
HCP
508
Hexagon Capital Partners
Arkansas
– -$24.7K -1,371 Closed
GFPC
509
Global Financial Private Client
Florida
– -$1.96K -109 Closed
GJIA
510
Glass Jacobson Investment Advisors
Maryland
– -$725 -48 Closed
BFS
511
Bare Financial Services
Pennsylvania
– -$558 -31 Closed
HWP
512
Highline Wealth Partners
California
– -$216 -12 Closed
GP
513
Greenline Partners
New York
– -$198 -11 Closed
BCM
514
Blume Capital Management
California
– -$144 -8 Closed
17 18 19 20
21

AM Hedge Fund Activity: Q2 2025 in Review

479 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Antero Midstream (AM) for Q2 2025, worth a combined $5.23B — up 7.1% from $4.88B a quarter earlier.

Buyers outnumbered sellers: 69 funds opened new AM positions and 36 closed out — a net gain of 33 holders — while 188 added to existing stakes and 143 trimmed.

The largest buyer was Blackstone Inc, adding an estimated $39.7M. The largest seller was Invesco, cutting an estimated $94.7M.

  • 479 institutional investors held Antero Midstream (AM) as of Q2 2025, up from 453 in Q1 2025.
  • Funds reported $5.23B of Antero Midstream stock for Q2 2025, up 7.1% quarter-over-quarter.
  • 69 funds opened new Antero Midstream positions in Q2 2025 and 36 closed out, a net change of +33 holders.
  • The largest Antero Midstream buyer in Q2 2025 was Blackstone Inc, an estimated $39.7M added.
  • The largest Antero Midstream seller in Q2 2025 was Invesco, an estimated $94.7M sold.

Based on aggregated 13F filings for Q2 2025.