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Antero Midstream

510 hedge funds and large institutions have $6.42B invested in Antero Midstream in 2026 Q1 according to their latest regulatory filings, with 82 funds opening new positions, 191 increasing their positions, 155 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed

227% more call options, than puts

Call options by funds: $56.5M | Put options by funds: $17.3M

67% more first-time investments, than exits

New positions opened: 82 | Existing positions closed: 49

50% more funds holding in top 10

Funds holding in top 10: 46 (+2)

30% more capital invested

Capital invested by funds: $4.95B → $6.42B (+$1.47B)

23% more repeat investments, than reductions

Existing positions increased: 191 | Existing positions reduced: 155

5% more funds holding

Funds holding: 488510 (+22)

0.72% more ownership

Funds ownership: 58.4%59.13% (+0.72%)

Holders
510
Holders Change
+22
Holders Change %
+4.51%
% of All Funds
6.28%
Holding in Top 10
6
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
82
Increased
191
Reduced
155
Closed
49
Calls
$56.5M
Puts
$17.3M
Net Calls
+$39.2M
Net Calls Change
-$713K
Name Holding Trade Value Shares
Change
Change in
Stake
SEI Investments
76
SEI Investments
Pennsylvania
$9.97M +$6.87M +332,822 +319%
California State Teachers Retirement System (CalSTRS)
77
California State Teachers Retirement System (CalSTRS)
California
$9.73M +$1.84M +88,900 +26%
D.E. Shaw & Co
78
D.E. Shaw & Co
New York
$9.46M +$1.01M +48,887 +13%
SG Americas Securities
79
SG Americas Securities
New York
$9.46M +$328K +15,890 +4%
Retirement Systems of Alabama
80
Retirement Systems of Alabama
Alabama
$9.26M +$121K +5,857 +1%
Wellington Management Group
81
Wellington Management Group
Massachusetts
$9.16M +$3.78M +183,201 +84%
Legal & General Group
82
Legal & General Group
United Kingdom
$8.97M -$1.8M -87,151 -18%
BAMF
83
BI Asset Management Fondsmaeglerselskab
Denmark
$8.52M +$5.35M +258,847 +225%
IIM
84
INTECH Investment Management
Florida
$8.34M -$8.36M -404,789 -53%
Wells Fargo
85
Wells Fargo
California
$8.02M -$376K -18,219 -5%
RL
86
Ruffer LLP
United Kingdom
$8.01M +$7.24M +350,360 New
VOYA Investment Management
87
VOYA Investment Management
Georgia
$8M +$1.78M +85,949 +32%
New York State Teachers Retirement System (NYSTRS)
88
New York State Teachers Retirement System (NYSTRS)
New York
$7.77M -$735K -35,564 -9%
MSRPS
89
Maryland State Retirement & Pension System
Maryland
$7.15M -$332K -16,087 -5%
T. Rowe Price Associates
90
T. Rowe Price Associates
Maryland
$6.82M +$742K +35,933 +14%
HAI
91
Hennessy Advisors Inc
California
$6.77M -$866K -41,930 -12%
PFC
92
Phocas Financial Corp
California
$6.53M -$1.64M -79,552 -22%
State Board of Administration of Florida Retirement System
93
State Board of Administration of Florida Retirement System
Florida
$6.48M -$2.15M -104,134 -27%
PH
94
Pinnacle Holdings
Oklahoma
$6.37M -$12.1K -588 -0.2%
ECM
95
Evergreen Capital Management
Washington
$6.31M -$214K -10,377 -4%
Janus Henderson Group
96
Janus Henderson Group
United Kingdom
$6.24M +$2.35M +113,696 +71%
VAM
97
Vanguard Asset Management
$6.21M +$5.62M +272,159 New
Deutsche Bank
98
Deutsche Bank
Germany
$5.99M +$31.7K +1,534 +0.6%
Citigroup
99
Citigroup
New York
$5.99M +$1.2M +58,050 +28%
AG
100
Algert Global
California
$5.68M +$2.57M +124,430 +100%

AM Hedge Fund Activity: Q1 2026 in Review

510 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Antero Midstream (AM) for Q1 2026, worth a combined $6.42B — up 30% from $4.95B a quarter earlier.

Buyers outnumbered sellers: 82 funds opened new AM positions and 49 closed out — a net gain of 33 holders — while 191 added to existing stakes and 155 trimmed.

The largest buyer was AllianceBernstein, adding an estimated $68.8M. The largest seller was BlackRock, cutting an estimated $42.8M.

  • 510 institutional investors held Antero Midstream (AM) as of Q1 2026, up from 488 in Q4 2025.
  • Funds reported $6.42B of Antero Midstream stock for Q1 2026, up 30% quarter-over-quarter.
  • 82 funds opened new Antero Midstream positions in Q1 2026 and 49 closed out, a net change of +33 holders.
  • The largest Antero Midstream buyer in Q1 2026 was AllianceBernstein, an estimated $68.8M added.
  • The largest Antero Midstream seller in Q1 2026 was BlackRock, an estimated $42.8M sold.

Based on aggregated 13F filings for Q1 2026.