Mariner’s HighPeak Energy HPK Stock Holding History

Mariner’s Portfolio HPK Stock Details HPK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$511K	Buy	73,051 +46,529	+175%	+$321K	﹤0.01%	2443
2026 Q1	$183K	Buy	+26,522	New	+$139K	﹤0.01%	3191
2025 Q3	–	Sell	-12,049	Closed	-$118K	–	3659
2025 Q2	$118K	Buy	+12,049	New	+$119K	﹤0.01%	3204

Other funds holding HPK

AAP

Arax Advisory Partners Denver, Colorado $15.1B AUM 27.93% 1-Year Est. Return

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

TCBWMS

Texas Capital Bank Wealth Management Services Dallas, Texas $1.87B AUM 24.49% 1-Year Est. Return

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

KCM

Kennedy Capital Management St Louis, Missouri $5.65B AUM 61.31% 1-Year Est. Return

Mariner's HPK Position: Q2 2026 in Review

Mariner increased its HighPeak Energy (HPK) stake by 175% in Q2 2026, buying an estimated $321K and bringing the position to 73,051 shares worth $511K. The position accounts for ﹤0.01% of the portfolio, ranked #2443.

Mariner first reported a position in HPK in Q2 2025 and has held it in 3 quarters since. 149 funds tracked by Wall St. Rank hold HPK as of Q2 2026.

Mariner held 73,051 shares of HighPeak Energy worth $511K as of Q2 2026.
Mariner bought 46,529 HighPeak Energy shares in Q2 2026, an estimated $321K.
HighPeak Energy made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2443 holding.
Mariner first reported a position in HighPeak Energy in Q2 2025 and has held it in 3 quarters since.
149 funds tracked by Wall St. Rank held HighPeak Energy as of Q2 2026.

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