Mariner’s OPAL Fuels OPAL Stock Holding History

Mariner’s Portfolio OPAL Stock Details OPAL Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$31.3K	Buy	+14,210	New	+$31.2K	﹤0.01%	3454
2026 Q1	–	Sell	-11,425	Closed	-$26.9K	–	3744
2025 Q4	$26.9K	Buy	+11,425	New	+$27.5K	﹤0.01%	3464

Other funds holding OPAL

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Ares Management Los Angeles, California $2.29B AUM 0.27% 1-Year Est. Return

ECP

Electron Capital Partners New York $2.5B AUM 97.62% 1-Year Est. Return

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

YCM

Yaupon Capital Management New York $5.08B AUM 53.49% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

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

Rockefeller Capital Management New York $65.2B AUM 31.44% 1-Year Est. Return

SCM

SIR Capital Management New York $870M AUM 51.93% 1-Year Est. Return

Mariner's OPAL Position: Q2 2026 in Review

Mariner opened a new position in OPAL Fuels (OPAL) in Q2 2026: 14,210 shares worth $31.3K. The stake represents ﹤0.01% of the portfolio and ranks #3454 among its holdings. This is a return to the name: Mariner previously reported a position in OPAL as recently as Q4 2025.

Mariner first reported a position in OPAL in Q4 2025 and has held it in 2 quarters since. 78 funds tracked by Wall St. Rank hold OPAL as of Q2 2026.

Mariner held 14,210 shares of OPAL Fuels worth $31.3K as of Q2 2026.
OPAL Fuels was a new Mariner position in Q2 2026.
OPAL Fuels made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #3454 holding.
Mariner first reported a position in OPAL Fuels in Q4 2025 and has held it in 2 quarters since.
78 funds tracked by Wall St. Rank held OPAL Fuels as of Q2 2026.

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