Optiver Holding’s 374Water SCWO Stock Holding History

Optiver Holding’s Portfolio SCWO Stock Details SCWO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-2	Closed	-$6	–	3048
2026 Q1	$6	Hold	2	–	–	﹤0.01%	2282
2025 Q4	$4	Sell	2 -3	-60%	-$10	﹤0.01%	2436
2025 Q3	$14	Buy	+5	New	+$14	﹤0.01%	2650

Other funds holding SCWO

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

CAPTRUST Financial Advisors Raleigh, North Carolina $65.5B AUM 24.25% 1-Year Est. Return

HLA

Hamilton Lane Advisors Conshohocken, Pennsylvania $149M AUM 14.17% 1-Year Est. Return

DADC

D.A. Davidson & Co Great Falls, Montana $18.1B AUM 24.63% 1-Year Est. Return

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

IWA

Icon Wealth Advisors Houston, Texas $1.66B AUM 24.99% 1-Year Est. Return

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

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

SPC

Sigma Planning Corp Ann Arbor, Michigan $3.97B AUM 32.34% 1-Year Est. Return

Optiver Holding's SCWO Position: Q2 2026 in Review

Optiver Holding sold out of 374Water (SCWO) in Q2 2026, closing a stake of 2 shares — an estimated $6 sold.

Optiver Holding first reported a position in SCWO in Q3 2025 and held it in 3 quarters. The position peaked at $14 in Q3 2025. 44 funds tracked by Wall St. Rank hold SCWO as of Q2 2026.

Optiver Holding reported no remaining 374Water position as of Q2 2026 after selling out during the quarter.
Optiver Holding sold 2 374Water shares in Q2 2026, an estimated $6.
Optiver Holding first reported a position in 374Water in Q3 2025 and held it in 3 quarters.
Optiver Holding's 374Water position peaked at $14 in Q3 2025.
44 funds tracked by Wall St. Rank held 374Water as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.