Updated Jul 16, 2026
Russell Kline is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $12K. Historical track record: 5/5 stars across 3 tracked purchases.

Russell Kline is the Chief Financial Officer of 374Water Inc., a company that specializes in transforming wet wastes into recoverable resources. He has been involved in the company through various SEC filings, indicating his role in financial oversight.
| Role | Insider |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★★★ (5/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 10000% |
| 90-day win rate | 6667% |
| Avg 5-day return | +1361.14% |
| Avg 30-day return | +2846.01% |
| Avg 90-day return | +537.61% |
| Best 30-day return | +3068.09% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-28 | SCWO | 374Water Inc. | A — Grant or award | 250.0K | $0.00 | |
| 2025-08-21 | SCWO | 374Water Inc. | P — Open-market purchase | 15.0K | $0.25 | $4K |
| 2025-08-21 | SCWO | 374Water Inc. | P — Open-market purchase | 15.0K | $0.25 | $4K |
| 2025-08-20 | SCWO | 374Water Inc. | P — Open-market purchase | 20.0K | $0.24 | $5K |
Russell Kline is the Chief Financial Officer of 374Water Inc., a company that specializes in transforming wet wastes into recoverable resources. He has been involved in the company through various SEC filings, indicating his role in financial oversight.…
Recorded transactions: 3 open-market purchases ($12K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, Russell Kline averaged +2846.0% avg 30-day return with a 10000% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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