SCWO 374Water Inc.

NASDAQ
$3.10

374Water Inc. (SCWO) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal In line Selling ran in line with SCWO's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 0 sellers in the last 90 days
Insiders buying
2
2 transactions
Insiders selling
1
11 transactions
Purchases
$108.4K
470,000 shares
Sales
$1.7M
3,645,693 shares
Net activity
-$1.6M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $1.7M 11 transactions · 3,645,693 shares

Largest single sale: $695.7K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: December 16, 2025 , by Jones Stephen J .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Jones Stephen J Interim CEO Buy 450,000 $0.23 $104.0K 1,055,723
Russell Kline Chief Financial Officer Buy 20,000 $0.22 $4.4K 668,642
Nagar Yaacov 10% Owner Sell 473,211 $0.43 $205.4K 32,112,632 −1.5% of holding
Nagar Yaacov 2 fills 10% Owner Sell 93,791 $0.42 $39.5K 32,646,843 −0.3% of holding
Nagar Yaacov 10% Owner Sell 284,394 $0.42 $119.6K 32,679,634 −0.9% of holding
Nagar Yaacov 10% Owner Sell 13,330 $0.42 $5.6K 32,964,028 −0% of holding
Nagar Yaacov 10% Owner Sell 131,680 $0.42 $55.7K 32,977,358 −0.4% of holding
Nagar Yaacov 10% Owner Sell 85,419 $0.51 $43.8K 33,109,038 −0.3% of holding
Nagar Yaacov 10% Owner Sell 363,868 $0.52 $188.4K 33,194,457 −1.1% of holding
Nagar Yaacov 10% Owner Sell 700,000 $0.52 $361.4K 33,558,325 −2% of holding
Nagar Yaacov 10% Owner Sell 1,499,000 $0.46 $695.7K 34,258,325 −4.2% of holding
Nagar Yaacov 10% Owner Sell 1,000 $0.39 $390 35,757,325 −0% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.