Horizon Investments’s Antero Midstream AM Stock Holding History

Horizon Investments’s Portfolio AM Stock Details AM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$281K	Buy	12,497 +1,874	+18%	+$40.7K	﹤0.01%	956
2026 Q1	$240K	Sell	10,623 -212,489	-95%	-$4.39M	﹤0.01%	955
2025 Q4	$3.92M	Buy	223,112 +46,963	+27%	+$846K	0.05%	303
2025 Q3	$3.38M	Sell	176,149 -15,581	-8%	-$282K	0.04%	316
2025 Q2	$3.59M	Buy	191,730 +191,661	+277,770%	+$3.42M	0.06%	251
2025 Q1	$1.23K	Buy	+69	New	+$1.14K	﹤0.01%	794
2024 Q4	–	Sell	-122	Closed	-$1.81K	–	868
2024 Q3	$1.81K	Buy	122 +39	+47%	+$568	﹤0.01%	715
2024 Q2	$1.21K	Hold	83	–	–	﹤0.01%	734
2024 Q1	$1.15K	Buy	+83	New	+$1.06K	﹤0.01%	731

Other funds holding AM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

TCA

Tortoise Capital Advisors Overland Park, Kansas $9.84B AUM 26.47% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Neuberger Berman Group New York $150B AUM 40.08% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Horizon Investments's AM Position: Q2 2026 in Review

Horizon Investments increased its Antero Midstream (AM) stake by 18% in Q2 2026, buying an estimated $40.7K and bringing the position to 12,497 shares worth $281K. The position accounts for ﹤0.01% of the portfolio, ranked #956.

Horizon Investments first reported a position in AM in Q1 2024 and has held it in 9 quarters since. The position peaked at $3.92M in Q4 2025. 534 funds tracked by Wall St. Rank hold AM as of Q2 2026.

Horizon Investments held 12,497 shares of Antero Midstream worth $281K as of Q2 2026.
Horizon Investments bought 1,874 Antero Midstream shares in Q2 2026, an estimated $40.7K.
Antero Midstream made up ﹤0.01% of Horizon Investments's portfolio in Q2 2026, its #956 holding.
Horizon Investments first reported a position in Antero Midstream in Q1 2024 and has held it in 9 quarters since.
Horizon Investments's Antero Midstream position peaked at $3.92M in Q4 2025.
534 funds tracked by Wall St. Rank held Antero Midstream as of Q2 2026.

Based on Horizon Investments's 13F filing for Q2 2026, filed 13 Aug 2026.