Optiver Holding’s Antero Midstream AM Stock Holding History

Optiver Holding’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
2025 Q4	–	Sell	-433	Closed	-$8.42K	–	2467
2025 Q3	$8.42K	Buy	+433	New	+$7.82K	﹤0.01%	1401
2024 Q4	–	Sell	-425	Closed	-$6.4K	–	1034
2024 Q3	$6.4K	Buy	+425	New	+$6.19K	﹤0.01%	777

Other funds holding AM

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

TCA

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

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

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

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

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

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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Optiver Holding's AM Position: Q4 2025 in Review

Optiver Holding sold out of Antero Midstream (AM) in Q4 2025, closing a stake of 433 shares — an estimated $8.42K sold.

Optiver Holding first reported a position in AM in Q3 2024 and held it in 2 quarters. The position peaked at $8.42K in Q3 2025. 488 funds tracked by Wall St. Rank hold AM as of Q4 2025.

Optiver Holding reported no remaining Antero Midstream position as of Q4 2025 after selling out during the quarter.
Optiver Holding sold 433 Antero Midstream shares in Q4 2025, an estimated $8.42K.
Optiver Holding first reported a position in Antero Midstream in Q3 2024 and held it in 2 quarters.
Optiver Holding's Antero Midstream position peaked at $8.42K in Q3 2025.
488 funds tracked by Wall St. Rank held Antero Midstream as of Q4 2025.

Based on Optiver Holding's 13F filing for Q4 2025, filed 17 Feb 2026.