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person · Reporting owner

Mandel Peter

Disclosed activity across 1 company

Tapewire entity
75943
SEC CIK
0002035922

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
374Water Inc.SCWO · Entity 7200General CounselAugust 28, 2025September 03, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

374Water Inc.

Report date August 28, 2025 · Filed September 03, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock (restricted stock unit)SEC Table I · non-derivativeDirect638,575 Reported balance After 2025-08-28 transaction · row 1
1 source row

Row 1 · 2025-08-28 · Grant · Acquired 375,000 · Balance 638,575

F1: The restricted stock unit vests in equal monthly installments over 36 months, on the last day of each month, beginning on March 31, 2025, subject to the Reporting Person's continuous service through each vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The restricted stock unit vests in equal monthly installments over 36 months, on the last day of each month, beginning on March 31, 2025, subject to the Reporting Person's continuous service through each vesting date.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
August 28, 2025 Filed Sep 3, 2025 01:44 UTC 374Water Inc. SCWO · Entity 7200 GrantCommon Stock (restricted stock unit) 375,000 $0.00 $0.00
Disclosure

SEC source: 0001654954-25-010330 · section16.xml · nonDerivative · entry 1

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 638,575

F1 · shares: The restricted stock unit vests in equal monthly installments over 36 months, on the last day of each month, beginning on March 31, 2025, subject to the Reporting Person's continuous service through each vesting date.

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August 19, 2025 Filed Aug 20, 2025 20:06 UTC 374Water Inc. SCWO · Entity 7200 PurchaseCommon Stock 4,980 $0.25 $1,244.00
Disclosure

SEC source: 0001654954-25-009860 · section16.xml · nonDerivative · entry 2

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 263,575

Read SEC document
August 18, 2025 Filed Aug 20, 2025 20:06 UTC 374Water Inc. SCWO · Entity 7200 PurchaseCommon Stock 20 $0.25 $4.96
Disclosure

SEC source: 0001654954-25-009860 · section16.xml · nonDerivative · entry 1

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 258,595

Read SEC document
November 18, 2024 Filed Nov 20, 2024 02:07 UTC 374Water Inc. SCWO · Entity 7200 PurchaseWarrants (right to buy) · Derivative 16,200 Not disclosed Strike: $1.13 Not disclosed
Disclosure

SEC source: 0000950170-24-128977 · ownership.xml · derivative · entry 4

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,200

Underlying: Common Stock · 16,200 shares

Expires 2029-11-17

F2 · price: The purchase price for each share of the 10,800 shares of Common Stock reported in Table I and the accompanying warrants was $1.25.

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November 18, 2024 Filed Nov 20, 2024 02:07 UTC 374Water Inc. SCWO · Entity 7200 GrantStock options (right to buy) · Derivative 247,775 $0.00 Strike: $1.03 $0.00
Disclosure

SEC source: 0000950170-24-128977 · ownership.xml · derivative · entry 3

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247,775

Underlying: Common Stock · 247,775 shares

Expires 2034-11-17

F1 · shares: Vesting commencement date is August 19, 2024. 25% of the shares vest and become exercisable on the first annual anniversary of the vesting commencement date and the balance vest and become exercisable equally on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continuous service through each vesting date.

F1 · derivative.exercise_date: Vesting commencement date is August 19, 2024. 25% of the shares vest and become exercisable on the first annual anniversary of the vesting commencement date and the balance vest and become exercisable equally on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continuous service through each vesting date.

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November 18, 2024 Filed Nov 20, 2024 02:07 UTC 374Water Inc. SCWO · Entity 7200 PurchaseCommon Stock 10,800 $1.25 $13,500.00
Disclosure

SEC source: 0000950170-24-128977 · ownership.xml · nonDerivative · entry 2

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 258,575

F2 · price: The purchase price for each share of the 10,800 shares of Common Stock reported in Table I and the accompanying warrants was $1.25.

Read SEC document
November 15, 2024 Filed Nov 20, 2024 02:07 UTC 374Water Inc. SCWO · Entity 7200 GrantCommon Stock (restricted stock units) 247,775 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-128977 · ownership.xml · nonDerivative · entry 1

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247,775

F1 · shares: Vesting commencement date is August 19, 2024. 25% of the shares vest and become exercisable on the first annual anniversary of the vesting commencement date and the balance vest and become exercisable equally on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continuous service through each vesting date.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.