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374Water, Inc. (SCWO) institutional ownership

Latest close $2.16 Jul 24, 2026
Market cap$359M 52-week range SectorIndustrials
Funds holding · Q1 2026
26
reported SCWO position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
14 buyers · 12 sellers

374Water, Inc. (SCWO) price and institutional activity

Dates

Q1 2026

$0 bought by 14 investors
Captrust Financial AdvisorsVanguard +12 more
$0 sold by 12 investors
Jane Street Group, LLCMillennium Management LLC +10 more
Bought Sold Totals per quarter; hover a bar for the names.

374Water, Inc. (SCWO) institutional activity · 26

Investor Type Est. change Change Δ Own Date
Captrust Financial Advisors · Added
Change +124K Date Q1 2026
Captrust Financial Advisors Added· Q1 2026 +124K Q1 2026
Jane Street Group, LLC · Exited
Change −62K Δ Own −100.0% Date Q1 2026
Jane Street Group, LLC Exited· Q1 2026 −62K −100.0% Q1 2026
Vanguard · Added
Change +46K Date Q1 2026
Vanguard Added· Q1 2026 +46K Q1 2026
Susquehanna International Group, LLP · New
Change +37K Date Q1 2026
Susquehanna International Group, LLP New· Q1 2026 +37K Q1 2026
D.a. Davidson & Co. · Added
Change +26K Date Q1 2026
D.a. Davidson & Co. Added· Q1 2026 +26K Q1 2026
Millennium Management LLC · Reduced
Change −25K Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −25K Q1 2026
UBS Group AG · Added
Change +20K Date Q1 2026
UBS Group AG Added· Q1 2026 +20K Q1 2026
Prospera Financial Services Inc · New
Change +18K Date Q1 2026
Prospera Financial Services Inc New· Q1 2026 +18K Q1 2026
Geode · Added
Change +17K Date Q1 2026
Geode Added· Q1 2026 +17K Q1 2026
Westend Capital Management, LLC · New
Change +13K Date Q1 2026
Westend Capital Management, LLC New· Q1 2026 +13K Q1 2026
Virtu Financial LLC · Exited
Change −13K Δ Own −100.0% Date Q1 2026
Virtu Financial LLC Exited· Q1 2026 −13K −100.0% Q1 2026
Sigma Planning Corp · Added
Change +7K Date Q1 2026
Sigma Planning Corp Added· Q1 2026 +7K Q1 2026
Tower Research Capital LLC (trc) · Reduced
Change −3K Date Q1 2026
Tower Research Capital LLC (trc) Reduced· Q1 2026 −3K Q1 2026
Patron Partners, LLC · Added
Change +1K Date Q1 2026
Patron Partners, LLC Added· Q1 2026 +1K Q1 2026
Royal Bank of Canada · Added
Change +911 Date Q1 2026
Royal Bank of Canada Added· Q1 2026 +911 Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 26

Famous investor activity in 374Water, Inc. (SCWO)

374Water, Inc. (SCWO) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Weiser Charles Maurice · Director 2 operations 275K
Owned 125K Trade date Jul 1, 2026 Filed date Jul 8, 2026
Weiser Charles Maurice Director 2 operations 275K 125K Jul 1, 2026 Jul 8, 2026
Meyers Brad Ian · Officer Sell −$23K
Price $2.33 Qty −10K Owned 30K Trade date Jun 12, 2026 Filed date Jun 15, 2026
Meyers Brad Ian Officer Sell $2.33 −10K −$23K 30K Jun 12, 2026 Jun 15, 2026
Meyers Brad Ian · Officer Sell −$22K
Price $2.46 Qty −9K Owned 40K Trade date Jun 11, 2026 Filed date Jun 15, 2026
Meyers Brad Ian Officer Sell $2.46 −9K −$22K 40K Jun 11, 2026 Jun 15, 2026
Nagar Yaacov · 10% Owner Gift (G) -$3.6M
Price $2.48 Qty -1.4M Owned 1.8M Trade date Apr 30, 2026 Filed date Apr 30, 2026
Nagar Yaacov 10% Owner Gift (G) $2.48 -1.4M -$3.6M 1.8M Apr 30, 2026 Apr 30, 2026
Russell Kline · Officer Buy +$4K
Price $0.22 Qty +20K Owned 669K Trade date Dec 16, 2025 Filed date Dec 18, 2025
Russell Kline Officer Buy $0.22 +20K +$4K 669K Dec 16, 2025 Dec 18, 2025
Jones Stephen J. · Director, Officer Buy +$104K
Price $0.23 Qty +450K Owned 1.1M Trade date Dec 16, 2025 Filed date Dec 17, 2025
Jones Stephen J. Director, Officer Buy $0.23 +450K +$104K 1.1M Dec 16, 2025 Dec 17, 2025
Nagar Yaacov · 10% Owner Sell −$203K
Price $0.43 Qty −473K Owned 32.1M Trade date Oct 23, 2025 Filed date Oct 24, 2025
Nagar Yaacov 10% Owner Sell $0.43 −473K −$203K 32.1M Oct 23, 2025 Oct 24, 2025
Nagar Yaacov · 10% Owner 2 operations −$39K
Price $0.42 Qty −94K Owned 32.6M Trade date Oct 22, 2025 Filed date Oct 24, 2025
Nagar Yaacov 10% Owner 2 operations $0.42 −94K −$39K 32.6M Oct 22, 2025 Oct 24, 2025
Nagar Yaacov · 10% Owner Sell −$119K
Price $0.42 Qty −284K Owned 32.7M Trade date Oct 21, 2025 Filed date Oct 22, 2025
Nagar Yaacov 10% Owner Sell $0.42 −284K −$119K 32.7M Oct 21, 2025 Oct 22, 2025
Nagar Yaacov · 10% Owner Sell −$6K
Price $0.42 Qty −13K Owned 33.0M Trade date Oct 20, 2025 Filed date Oct 22, 2025
Nagar Yaacov 10% Owner Sell $0.42 −13K −$6K 33.0M Oct 20, 2025 Oct 22, 2025
Nagar Yaacov · 10% Owner Sell −$55K
Price $0.42 Qty −132K Owned 33.0M Trade date Oct 17, 2025 Filed date Oct 20, 2025
Nagar Yaacov 10% Owner Sell $0.42 −132K −$55K 33.0M Oct 17, 2025 Oct 20, 2025
Nagar Yaacov · 10% Owner Sell −$44K
Price $0.51 Qty −85K Owned 33.1M Trade date Oct 16, 2025 Filed date Oct 20, 2025
Nagar Yaacov 10% Owner Sell $0.51 −85K −$44K 33.1M Oct 16, 2025 Oct 20, 2025
Nagar Yaacov · 10% Owner Sell −$188K
Price $0.52 Qty −364K Owned 33.2M Trade date Oct 15, 2025 Filed date Oct 16, 2025
Nagar Yaacov 10% Owner Sell $0.52 −364K −$188K 33.2M Oct 15, 2025 Oct 16, 2025
Nagar Yaacov · 10% Owner Sell −$361K
Price $0.52 Qty −700K Owned 33.6M Trade date Oct 14, 2025 Filed date Oct 16, 2025
Nagar Yaacov 10% Owner Sell $0.52 −700K −$361K 33.6M Oct 14, 2025 Oct 16, 2025
Melkote Rajesh Ramaswamy · Officer Grant (A) 500K
Owned 500K Trade date Oct 9, 2025 Filed date Oct 23, 2025
Melkote Rajesh Ramaswamy Officer Grant (A) 500K 500K Oct 9, 2025 Oct 23, 2025
15 of 40
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374Water, Inc. (SCWO) activist and large shareholders

Dates
No Schedule 13D or 13G filing is available for SCWO in this range.

374Water, Inc. (SCWO) ownership FAQ

Who owns SCWO?

26 reporting institutions disclosed SCWO position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.