Artisan Partners’s Antero Midstream AM Stock Holding History

Artisan Partners’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	$8.99M	Buy	+395,008	New	+$8.58M	0.01%	311
2018 Q4	–	Sell	-1,214,003	Closed	-$20.5M	–	273
2018 Q3	$20.5M	Buy	1,214,003 +87,570	+8%	+$1.6M	0.04%	211
2018 Q2	$21.2M	Buy	1,126,433 +7,427	+0.7%	+$132K	0.04%	212
2018 Q1	$17.9M	Buy	1,119,006 +373,715	+50%	+$7.23M	0.04%	226
2017 Q4	$14.7M	Sell	745,291 -13,459	-2%	-$250K	0.03%	232
2017 Q3	$15.5M	Buy	758,750 +193,905	+34%	+$3.87M	0.03%	228
2017 Q2	$12.4M	Buy	+564,845	New	+$12.2M	0.02%	232

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

Artisan Partners's AM Position: Q2 2026 in Review

Artisan Partners opened a new position in Antero Midstream (AM) in Q2 2026: 395,008 shares worth $8.99M. The stake represents 0.01% of the portfolio and ranks #311 among its holdings. This is a return to the name: Artisan Partners previously reported a position in AM as recently as Q3 2018.

Artisan Partners first reported a position in AM in Q2 2017 and has held it in 7 quarters since. The position peaked at $21.2M in Q2 2018. 531 funds tracked by Wall St. Rank hold AM as of Q2 2026.

Artisan Partners held 395,008 shares of Antero Midstream worth $8.99M as of Q2 2026.
Antero Midstream was a new Artisan Partners position in Q2 2026.
Antero Midstream made up 0.01% of Artisan Partners's portfolio in Q2 2026, its #311 holding.
Artisan Partners first reported a position in Antero Midstream in Q2 2017 and has held it in 7 quarters since.
Artisan Partners's Antero Midstream position peaked at $21.2M in Q2 2018.
531 funds tracked by Wall St. Rank held Antero Midstream as of Q2 2026.

Based on Artisan Partners's 13F filing for Q2 2026, filed 13 Aug 2026.