SCWO

374Water Inc.

Insider trading activity for 374Water Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

-$45K

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 1 insiders): $45K

Past 12 months

-$1.7M

net selling

Bought(2 · 2 insiders): $108.4K
Sold(13 · 2 insiders): $1.8M

Transaction history

The 63 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Jul 1	Weiser Charles Maurice	Chief Financial Officer	AGRANT◆	125,000	—	—	—	Open the original filing on SEC.gov
Jul 1	Weiser Charles Maurice	Chief Financial Officer	AGRANT◆	150,000	—	—	—	Open the original filing on SEC.gov
Jun 12	Meyers Brad Ian	Chief Operating Officer	SSELL	9,831	$2.33	$22.9K	-24.6%	Open the original filing on SEC.gov
Jun 11	Meyers Brad Ian	Chief Operating Officer	SSELL	9,000	$2.46	$22.1K	-18.4%	Open the original filing on SEC.gov
Apr 30	Nagar Yaacov	10% Owner	GGIFT	1.4M	$2.48	$3.6M	-44.8%	Open the original filing on SEC.gov
Dec 16, 2025	Jones Stephen J	Interim CEO	PBUY▲↓	450,000	$0.2311	$104K	+74.3%	Open the original filing on SEC.gov
Dec 16, 2025	Russell Kline	Chief Financial Officer	PBUY	20,000	$0.22	$4.4K	+3.1%	Open the original filing on SEC.gov
Oct 23, 2025	Nagar Yaacov	10% Owner	SSELL	473,211	$0.434	$205.4K	-1.5%	Open the original filing on SEC.gov
Oct 22, 2025	Nagar Yaacov	10% Owner	SSELL	32,791	$0.4209	$13.8K	-0.1%	Open the original filing on SEC.gov
Oct 22, 2025	Nagar Yaacov	10% Owner	SSELL	61,000	$0.421	$25.7K	-0.2%	Open the original filing on SEC.gov
Oct 21, 2025	Nagar Yaacov	10% Owner	SSELL	284,394	$0.4204	$119.6K	-0.9%	Open the original filing on SEC.gov
Oct 20, 2025	Nagar Yaacov	10% Owner	SSELL	13,330	$0.4208	$5.6K	<0.1%	Open the original filing on SEC.gov
Oct 17, 2025	Nagar Yaacov	10% Owner	SSELL	131,680	$0.423	$55.7K	-0.4%	Open the original filing on SEC.gov
Oct 16, 2025	Nagar Yaacov	10% Owner	SSELL	85,419	$0.5126	$43.8K	-0.3%	Open the original filing on SEC.gov
Oct 15, 2025	Nagar Yaacov	10% Owner	SSELL	363,868	$0.5179	$188.4K	-1.1%	Open the original filing on SEC.gov
Oct 14, 2025	Nagar Yaacov	10% Owner	SSELL	700,000	$0.5163	$361.4K	-2.0%	Open the original filing on SEC.gov
Oct 9, 2025	Russell Kline	Chief Financial Officer	AGRANT◆	500,000	—	—	—	Open the original filing on SEC.gov
Oct 9, 2025	Meyers Brad Ian	Chief Operating Officer	AGRANT◆	500,000	—	—	—	Open the original filing on SEC.gov
Oct 9, 2025	Melkote Rajesh Ramaswamy	Chief Technology Officer	AGRANT◆	500,000	—	—	—	Open the original filing on SEC.gov
Oct 8, 2025	Nagar Yaacov	10% Owner	SSELL	1.5M	$0.4641	$695.7K	-4.2%	Open the original filing on SEC.gov
Oct 7, 2025	Nagar Yaacov	10% Owner	SSELL	1,000	$0.39	$390	0.0%	Open the original filing on SEC.gov
Oct 7, 2025	Jones Stephen J	Interim CEO	AGRANT◆	4.5M	—	—	—	Open the original filing on SEC.gov
Sep 8, 2025	Nagar Yaacov	10% Owner	SSELL	54,850	$0.3993	$21.9K	-0.1%	Open the original filing on SEC.gov
Sep 5, 2025	Nagar Yaacov	10% Owner	SSELL	122,439	$0.3928	$48.1K	-0.3%	Open the original filing on SEC.gov
Aug 29, 2025	Nagar Yaacov	10% Owner	SSELL	22,711	$0.39	$8.9K	<0.1%	Open the original filing on SEC.gov
Aug 28, 2025	Mandel Peter	General Counsel	AGRANT	375,000	—	—	+142.3%	Open the original filing on SEC.gov
Aug 28, 2025	Russell Kline	Chief Financial Officer	AGRANT	250,000	—	—	+62.7%	Open the original filing on SEC.gov
Aug 28, 2025	Melkote Rajesh Ramaswamy	Chief Technology Officer	AGRANT	125,000	—	—	+16.5%	Open the original filing on SEC.gov
Aug 28, 2025	Estes Deanna Rene	Director	AGRANT	616,970	—	—	+260.9%	Open the original filing on SEC.gov
Aug 28, 2025	Estes Deanna Rene	Director	AGRANT	130,000	—	—	+122.1%	Open the original filing on SEC.gov
Aug 28, 2025	Vanderhider James…	Director	AGRANT	426,130	—	—	+250.7%	Open the original filing on SEC.gov
Aug 28, 2025	Vanderhider James…	Director	AGRANT	130,000	—	—	+325.0%	Open the original filing on SEC.gov
Aug 28, 2025	Pawloski James	Director	AGRANT	426,131	—	—	+220.4%	Open the original filing on SEC.gov
Aug 28, 2025	Penn Buddie J	Director	AGRANT	387,962	—	—	+204.2%	Open the original filing on SEC.gov
Aug 28, 2025	Penn Buddie J	Director	AGRANT	130,000	—	—	+216.7%	Open the original filing on SEC.gov
Aug 28, 2025	Jones Stephen J	Director	AGRANT	426,130	—	—	+237.3%	Open the original filing on SEC.gov
Aug 28, 2025	Gannon Chris M	Chief Executive Officer	AGRANT	1.3M	—	—	+111.6%	Open the original filing on SEC.gov
Aug 28, 2025	Meyers Brad Ian	Chief Operating Officer	AGRANT	375,000	—	—	+326.1%	Open the original filing on SEC.gov
Aug 26, 2025	Estes Deanna Rene	Director	PBUY★	30,000	$0.2902	$8.7K	+39.2%	Open the original filing on SEC.gov
Aug 25, 2025	Pawloski James	Director	PBUY★	193,300	$0.2629	$50.8K	—	Open the original filing on SEC.gov
Aug 22, 2025	Russell Kline	Chief Financial Officer	PBUY	15,000	$0.2496	$3.7K	+3.9%	Open the original filing on SEC.gov
Aug 21, 2025	Russell Kline	Chief Financial Officer	PBUY	15,000	$0.2462	$3.7K	+4.1%	Open the original filing on SEC.gov
Aug 20, 2025	Russell Kline	Chief Financial Officer	PBUY★	20,000	$0.239	$4.8K	+5.7%	Open the original filing on SEC.gov
Aug 19, 2025	Mandel Peter	General Counsel	PBUY▲	4,980	$0.2498	$1.2K	+1.9%	Open the original filing on SEC.gov
Aug 18, 2025	Mandel Peter	General Counsel	PBUY★	20	$0.248	$5	+<0.1%	Open the original filing on SEC.gov
Jun 27, 2025	Nagar Yaacov	10% Owner	SSELL	23,396	$0.4201	$9.8K	<0.1%	Open the original filing on SEC.gov
Jun 26, 2025	Nagar Yaacov	10% Owner	SSELL	103,379	$0.4207	$43.5K	-0.3%	Open the original filing on SEC.gov
Jun 24, 2025	Nagar Yaacov	10% Owner	SSELL	59,946	$0.4224	$25.3K	-0.2%	Open the original filing on SEC.gov
Jun 23, 2025	Nagar Yaacov	10% Owner	SSELL	36,191	$0.423	$15.3K	-0.1%	Open the original filing on SEC.gov
Jun 18, 2025	Nagar Yaacov	10% Owner	SSELL	57,650	$0.402	$23.2K	-0.2%	Open the original filing on SEC.gov
Jun 18, 2025	Nagar Yaacov	10% Owner	SSELL↺	51,598	$0.402	$20.7K	-0.1%	Open the original filing on SEC.gov
Jun 16, 2025	Nagar Yaacov	10% Owner	SSELL	6,052	$0.4	$2.4K	<0.1%	Open the original filing on SEC.gov
Jun 12, 2025	Nagar Yaacov	10% Owner	SSELL	42,350	$0.4	$16.9K	-0.1%	Open the original filing on SEC.gov
Jun 3, 2025	Jones Stephen J	Director	PBUY	40,000	$0.475	$19K	+28.6%	Open the original filing on SEC.gov
May 30, 2025	Jones Stephen J	Director	PBUY	50,000	$0.4224	$21.1K	+55.8%	Open the original filing on SEC.gov
May 22, 2025	Jones Stephen J	Director	PBUY	40,000	$0.315	$12.6K	+80.7%	Open the original filing on SEC.gov
May 20, 2025	Jones Stephen J	Director	PBUY★	49,593	$0.3	$14.9K	—	Open the original filing on SEC.gov
May 16, 2025	Meyers Brad Ian	Chief Operating Officer	AGRANT◆↺	115,500	—	—	—	Open the original filing on SEC.gov
May 16, 2025	Meyers Brad Ian	Chief Operating Officer	AGRANT↺	115,500	—	—	—	Open the original filing on SEC.gov
Apr 30, 2025	Melkote Rajesh Ramaswamy	Chief Technology Officer	AGRANT◆	757,576	—	—	—	Open the original filing on SEC.gov
Apr 30, 2025	Melkote Rajesh Ramaswamy	Chief Technology Officer	AGRANT	757,756	—	—	—	Open the original filing on SEC.gov
Apr 22, 2024	Gannon Chris M	Chief Executive Officer	AGRANT◆	1.3M	—	—	—	Open the original filing on SEC.gov
Apr 22, 2024	Gannon Chris M	Chief Executive Officer	AGRANT	1M	—	—	+833.3%	Open the original filing on SEC.gov

AGRANT◆—

Weiser Charles Maurice · Chief Financial…Jul 1

125,000 sh

AGRANT◆—

Weiser Charles Maurice · Chief Financial…Jul 1

150,000 sh

SSELL$22.9K

Meyers Brad Ian · Chief Operating…Jun 12

9,831 sh @ $2.33 · -24.6% own

SSELL$22.1K

Meyers Brad Ian · Chief Operating…Jun 11

9,000 sh @ $2.46 · -18.4% own

GGIFT$3.6M

Nagar Yaacov · 10% OwnerApr 30

1.4M sh @ $2.48 · -44.8% own

PBUY▲↓$104K

Jones Stephen J · Interim CEODec 16, 2025

450,000 sh @ $0.2311 · +74.3% own

PBUY$4.4K

Russell Kline · Chief Financial…Dec 16, 2025

20,000 sh @ $0.22 · +3.1% own

SSELL$205.4K

Nagar Yaacov · 10% OwnerOct 23, 2025

473,211 sh @ $0.434 · -1.5% own

SSELL$13.8K

Nagar Yaacov · 10% OwnerOct 22, 2025

32,791 sh @ $0.4209 · -0.1% own

SSELL$25.7K

Nagar Yaacov · 10% OwnerOct 22, 2025

61,000 sh @ $0.421 · -0.2% own

SSELL$119.6K

Nagar Yaacov · 10% OwnerOct 21, 2025

284,394 sh @ $0.4204 · -0.9% own

SSELL$5.6K

Nagar Yaacov · 10% OwnerOct 20, 2025

13,330 sh @ $0.4208 · <0.1% own

SSELL$55.7K

Nagar Yaacov · 10% OwnerOct 17, 2025

131,680 sh @ $0.423 · -0.4% own

SSELL$43.8K

Nagar Yaacov · 10% OwnerOct 16, 2025

85,419 sh @ $0.5126 · -0.3% own

SSELL$188.4K

Nagar Yaacov · 10% OwnerOct 15, 2025

363,868 sh @ $0.5179 · -1.1% own

SSELL$361.4K

Nagar Yaacov · 10% OwnerOct 14, 2025

700,000 sh @ $0.5163 · -2.0% own

AGRANT◆—

Russell Kline · Chief Financial…Oct 9, 2025

500,000 sh

AGRANT◆—

Meyers Brad Ian · Chief Operating…Oct 9, 2025

500,000 sh

AGRANT◆—

Melkote Rajesh Ramaswamy · Chief Technology…Oct 9, 2025

500,000 sh

SSELL$695.7K

Nagar Yaacov · 10% OwnerOct 8, 2025

1.5M sh @ $0.4641 · -4.2% own

SSELL$390

Nagar Yaacov · 10% OwnerOct 7, 2025

1,000 sh @ $0.39 · 0.0% own

AGRANT◆—

Jones Stephen J · Interim CEOOct 7, 2025

4.5M sh

SSELL$21.9K

Nagar Yaacov · 10% OwnerSep 8, 2025

54,850 sh @ $0.3993 · -0.1% own

SSELL$48.1K

Nagar Yaacov · 10% OwnerSep 5, 2025

122,439 sh @ $0.3928 · -0.3% own

SSELL$8.9K

Nagar Yaacov · 10% OwnerAug 29, 2025

22,711 sh @ $0.39 · <0.1% own

AGRANT—

Mandel Peter · General CounselAug 28, 2025

375,000 sh · +142.3% own

AGRANT—

Russell Kline · Chief Financial…Aug 28, 2025

250,000 sh · +62.7% own

AGRANT—

Melkote Rajesh Ramaswamy · Chief Technology…Aug 28, 2025

125,000 sh · +16.5% own

AGRANT—

Estes Deanna Rene · DirectorAug 28, 2025

616,970 sh · +260.9% own

AGRANT—

Estes Deanna Rene · DirectorAug 28, 2025

130,000 sh · +122.1% own

AGRANT—

Vanderhider James… · DirectorAug 28, 2025

426,130 sh · +250.7% own

AGRANT—

Vanderhider James… · DirectorAug 28, 2025

130,000 sh · +325.0% own

AGRANT—

Pawloski James · DirectorAug 28, 2025

426,131 sh · +220.4% own

AGRANT—

Penn Buddie J · DirectorAug 28, 2025

387,962 sh · +204.2% own

AGRANT—

Penn Buddie J · DirectorAug 28, 2025

130,000 sh · +216.7% own

AGRANT—

Jones Stephen J · DirectorAug 28, 2025

426,130 sh · +237.3% own

AGRANT—

Gannon Chris M · Chief Executive…Aug 28, 2025

1.3M sh · +111.6% own

AGRANT—

Meyers Brad Ian · Chief Operating…Aug 28, 2025

375,000 sh · +326.1% own

PBUY★$8.7K

Estes Deanna Rene · DirectorAug 26, 2025

30,000 sh @ $0.2902 · +39.2% own

PBUY★$50.8K

Pawloski James · DirectorAug 25, 2025

193,300 sh @ $0.2629

PBUY$3.7K

Russell Kline · Chief Financial…Aug 22, 2025

15,000 sh @ $0.2496 · +3.9% own

PBUY$3.7K

Russell Kline · Chief Financial…Aug 21, 2025

15,000 sh @ $0.2462 · +4.1% own

PBUY★$4.8K

Russell Kline · Chief Financial…Aug 20, 2025

20,000 sh @ $0.239 · +5.7% own

PBUY▲$1.2K

Mandel Peter · General CounselAug 19, 2025

4,980 sh @ $0.2498 · +1.9% own

PBUY★$5

Mandel Peter · General CounselAug 18, 2025

20 sh @ $0.248 · +<0.1% own

SSELL$9.8K

Nagar Yaacov · 10% OwnerJun 27, 2025

23,396 sh @ $0.4201 · <0.1% own

SSELL$43.5K

Nagar Yaacov · 10% OwnerJun 26, 2025

103,379 sh @ $0.4207 · -0.3% own

SSELL$25.3K

Nagar Yaacov · 10% OwnerJun 24, 2025

59,946 sh @ $0.4224 · -0.2% own

SSELL$15.3K

Nagar Yaacov · 10% OwnerJun 23, 2025

36,191 sh @ $0.423 · -0.1% own

SSELL$23.2K

Nagar Yaacov · 10% OwnerJun 18, 2025

57,650 sh @ $0.402 · -0.2% own

SSELL↺$20.7K

Nagar Yaacov · 10% OwnerJun 18, 2025

51,598 sh @ $0.402 · -0.1% own

SSELL$2.4K

Nagar Yaacov · 10% OwnerJun 16, 2025

6,052 sh @ $0.4 · <0.1% own

SSELL$16.9K

Nagar Yaacov · 10% OwnerJun 12, 2025

42,350 sh @ $0.4 · -0.1% own

PBUY$19K

Jones Stephen J · DirectorJun 3, 2025

40,000 sh @ $0.475 · +28.6% own

PBUY$21.1K

Jones Stephen J · DirectorMay 30, 2025

50,000 sh @ $0.4224 · +55.8% own

PBUY$12.6K

Jones Stephen J · DirectorMay 22, 2025

40,000 sh @ $0.315 · +80.7% own

PBUY★$14.9K

Jones Stephen J · DirectorMay 20, 2025

49,593 sh @ $0.3

AGRANT◆↺—

Meyers Brad Ian · Chief Operating…May 16, 2025

115,500 sh

AGRANT↺—

Meyers Brad Ian · Chief Operating…May 16, 2025

115,500 sh

AGRANT◆—

Melkote Rajesh Ramaswamy · Chief Technology…Apr 30, 2025

757,576 sh

AGRANT—

Melkote Rajesh Ramaswamy · Chief Technology…Apr 30, 2025

757,756 sh

AGRANT◆—

Gannon Chris M · Chief Executive…Apr 22, 2024

1.3M sh

AGRANT—

Gannon Chris M · Chief Executive…Apr 22, 2024

1M sh · +833.3% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

4 of 40 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 338 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Apr 22, 2024	Sep 2, 2025	Gannon Chris MChief Executive Officer	338days · about 1.3 years	—	Filing ↗
Oct 9, 2025	Oct 22, 2025	Melkote Rajesh RamaswamyChief Technology Officer	6days	—	Filing ↗
Aug 29, 2025	Sep 7, 2025	Nagar Yaacov10% Owner	2days	$8.9K	Filing ↗
Jul 1	Jul 7	Weiser Charles MauriceChief Financial Officer	1day	—	Filing ↗

Gannon Chris MChief Executive Officer

338days · about 1.3 years

Traded Apr 22, 2024 · filed Sep 2, 2025Filing ↗

Melkote Rajesh RamaswamyChief Technology Officer

6days

Traded Oct 9, 2025 · filed Oct 22, 2025Filing ↗

Nagar Yaacov10% Owner

2days

Traded Aug 29, 2025 · filed Sep 7, 2025Filing ↗

Weiser Charles MauriceChief Financial Officer

1day

Traded Jul 1 · filed Jul 7Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

More industrials companies

Other issuers in the same industry with insider filings on record.

Whole sector →