Parallax Volatility Advisers’s Antero Midstream AM Stock Holding History

Parallax Volatility Advisers’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 Q1	$2.06M	Buy	+100,000	New	+$2.07M	0.01%	778
2024 Q2	–	Sell	-408,100	Closed	-$5.74M	–	1971
2024 Q1	$5.74M	Buy	408,100 +358,100	+716%	+$4.58M	0.01%	690
2023 Q4	$627K	Hold	50,000	–	–	﹤0.01%	1544
2023 Q3	$599K	Hold	50,000	–	–	﹤0.01%	1534
2023 Q2	$580K	Buy	+50,000	New	+$531K	﹤0.01%	1596
2019 Q1	–	Sell	-45,000	Closed	-$503K	–	2721
2018 Q4	$503K	Sell	45,000 -38,200	-46%	-$583K	﹤0.01%	1500
2018 Q3	$1.41M	Buy	83,200 +45,000	+118%	+$824K	﹤0.01%	1156
2018 Q2	$720K	Buy	+38,200	New	+$678K	﹤0.01%	1180

Other funds holding AM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

TCA

Tortoise Capital Advisors Overland Park, Kansas $9.6B AUM 19.53% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Bank of New York Mellon New York $544B AUM 28.31% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Neuberger Berman Group New York $131B AUM 28.36% 1-Year Est. Return

Parallax Volatility Advisers's AM Position: Q1 2026 in Review

Parallax Volatility Advisers opened a new position in Antero Midstream (AM) in Q1 2026: 16,077 shares worth $331K. The stake represents ﹤0.01% of the portfolio and ranks #1111 among its holdings. This is a return to the name: Parallax Volatility Advisers previously reported a position in AM as recently as Q2 2019.

Parallax Volatility Advisers first reported a position in AM in Q4 2017 and has held it in 5 quarters since. The position peaked at $455K in Q2 2019. 511 funds tracked by Wall St. Rank hold AM as of Q1 2026.

Parallax Volatility Advisers held 16,077 shares of Antero Midstream worth $331K as of Q1 2026.
Antero Midstream was a new Parallax Volatility Advisers position in Q1 2026.
Antero Midstream made up ﹤0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #1111 holding.
Parallax Volatility Advisers first reported a position in Antero Midstream in Q4 2017 and has held it in 5 quarters since.
Parallax Volatility Advisers's Antero Midstream position peaked at $455K in Q2 2019.
511 funds tracked by Wall St. Rank held Antero Midstream as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.