Castleark Management’s Antero Midstream AM Stock Holding History

Castleark Management’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	$994K	Hold	43,680	–	–	0.03%	235
2026 Q1	$996K	Sell	43,680 -8,480	-16%	-$175K	0.03%	222
2025 Q4	$928K	Hold	52,160	–	–	0.03%	234
2025 Q3	$1.01M	Hold	52,160	–	–	0.03%	222
2025 Q2	$988K	Hold	52,160	–	–	0.03%	208
2025 Q1	$939K	Sell	52,160 -9,100	-15%	-$151K	0.03%	218
2024 Q4	$924K	Hold	61,260	–	–	0.03%	218
2024 Q3	$922K	Hold	61,260	–	–	0.04%	202
2024 Q2	$903K	Hold	61,260	–	–	0.04%	207
2024 Q1	$861K	Hold	61,260	–	–	0.04%	217
2023 Q4	$768K	Buy	61,260 +11,030	+22%	+$139K	0.03%	216
2023 Q3	$602K	Hold	50,230	–	–	0.03%	214
2023 Q2	$583K	Sell	50,230 -38,500	-43%	-$409K	0.03%	215
2023 Q1	$931K	Hold	88,730	–	–	0.05%	190
2022 Q4	$957K	Hold	88,730	–	–	0.05%	200
2022 Q3	$815K	Sell	88,730 -22,180	-20%	-$218K	0.05%	204
2022 Q2	$1M	Hold	110,910	–	–	0.05%	188
2022 Q1	$1.21M	Hold	110,910	–	–	0.05%	206
2021 Q4	$1.07M	Sell	110,910 -37,800	-25%	-$392K	0.04%	222
2021 Q3	$1.55M	Hold	148,710	–	–	0.06%	203
2021 Q2	$1.54M	Hold	148,710	–	–	0.05%	204
2021 Q1	$1.34M	Buy	+148,710	New	+$1.28M	0.05%	201
2019 Q2	–	Sell	-179,939	Closed	-$2.48M	–	350
2019 Q1	$2.48M	Buy	+179,939	New	+$2.35M	0.09%	214

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 $3.37T AUM 44.26% 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

Castleark Management's AM Position: Q2 2026 in Review

Castleark Management held its Antero Midstream (AM) position steady in Q2 2026 at 43,680 shares worth $994K. The position accounts for 0.03% of the portfolio, ranked #235.

Castleark Management first reported a position in AM in Q1 2019 and has held it in 23 quarters since. The position peaked at $2.48M in Q1 2019. 533 funds tracked by Wall St. Rank hold AM as of Q2 2026.

Castleark Management held 43,680 shares of Antero Midstream worth $994K as of Q2 2026.
Castleark Management left its Antero Midstream share count unchanged in Q2 2026.
Antero Midstream made up 0.03% of Castleark Management's portfolio in Q2 2026, its #235 holding.
Castleark Management first reported a position in Antero Midstream in Q1 2019 and has held it in 23 quarters since.
Castleark Management's Antero Midstream position peaked at $2.48M in Q1 2019.
533 funds tracked by Wall St. Rank held Antero Midstream as of Q2 2026.

Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.