Company profile
374Water Inc. Insider Trading
SCWOEvery SEC Form 4 insider trading filing for 374Water Inc. (SCWO) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Motors & Generators
- CIK
- 0000933972
- Filings
- 74
- Insiders
- 17
- Last filing
- 2026-07-01
Activity summary
No insider transactions in the last 30 days. The most recent was on July 1, 2026, when Charles Maurice Weiser bought 150,000 shares. 74 filings from 17 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. 374Water Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $1.7M.
90 day insight
Over the last 90 days, 374Water Inc. insiders bought $0 across 2 transactions with no open-market sales.
- Most active insider: Charles Maurice Weiser with 2 transactions totaling $0.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 1, 2026 | Charles Maurice Weiser | SCWO | Award | 150,000 | — | — |
| Jul 1, 2026 | Charles Maurice Weiser | SCWO | Award | 125,000 | — | — |
| Jun 12, 2026 | Brad Ian Meyers | SCWO | Sale | 9,831 | $2.33 | $23K |
| Jun 11, 2026 | Brad Ian Meyers | SCWO | Sale | 9,000 | $2.46 | $22K |
| Apr 30, 2026 | Yaacov Nagar | SCWO | Gift | 1,440,000 | $2.48 | $3.57M |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of 374Water Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →