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person · Reporting owner

Ramanan Natarajan

Disclosed activity across 1 company

Tapewire entity
62332
SEC CIK
0002058874

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Energy Recovery, Inc.ERII · Entity 5679Chief Technology OfficerMarch 05, 2026March 06, 2026

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.

Energy Recovery, Inc.

Report date March 05, 2026 · Filed March 06, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect52,565 Reported balance After 2026-03-05 transaction · row 1
1 source row

Row 1 · 2026-03-05 · Sale · Disposed 272 · Balance 52,565

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
March 05, 2026 Filed Mar 6, 2026 18:48 UTC Energy Recovery, Inc. ERII · Entity 5679 SaleCommon Stock 272 $10.57 $2,875.04
Disclosure

SEC source: 0002058874-26-000002 · wk-form4_1772840909.xml · nonDerivative · entry 1

Ramanan Natarajan · CIK 0002058874 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,565

Read SEC document
March 03, 2026 Filed Mar 4, 2026 16:57 UTC Energy Recovery, Inc. ERII · Entity 5679 Tax withholdingCommon Stock 2,724 $10.22 $27,839.28
Disclosure

SEC source: 0001421517-26-000024 · wk-form4_1772661438.xml · nonDerivative · entry 1

Ramanan Natarajan · CIK 0002058874 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,837

F1 · shares: Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

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February 17, 2026 Filed Feb 19, 2026 16:55 UTC Energy Recovery, Inc. ERII · Entity 5679 GrantCommon Stock 29,106 $0.00 $0.00
Disclosure

SEC source: 0001421517-26-000013 · wk-form4_1771538142.xml · nonDerivative · entry 1

Ramanan Natarajan · CIK 0002058874 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,561

F1 · shares: These employee restricted stock units were granted on the transaction date. 25% of the restricted stock units will vest on the first four anniversaries of the grant date.

F2 · shares: Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

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March 03, 2025 Filed Mar 12, 2025 17:04 UTC Energy Recovery, Inc. ERII · Entity 5679 GrantEmployee Stock Option (Right to Buy) · Derivative 65,030 $15.12 Strike: $0.00 $983,253.60
Disclosure

SEC source: 0001421517-25-000056 · wk-form4_1741813453.xml · derivative · entry 2

Ramanan Natarajan · CIK 0002058874 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,030

Underlying: Common Stock · 65,030 shares

Expires 2035-03-03

F3 · derivative.exercise_date: This employee stock option was granted on the transaction date. 25% of the options will vest on the 1st anniversary of the grant date; thereafter, the remaining 75% vest 1/36th per month.

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March 03, 2025 Filed Mar 12, 2025 17:04 UTC Energy Recovery, Inc. ERII · Entity 5679 GrantCommon Stock 26,455 Not disclosed Not disclosed
Disclosure

SEC source: 0001421517-25-000056 · wk-form4_1741813453.xml · nonDerivative · entry 1

Ramanan Natarajan · CIK 0002058874 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,455

F1 · shares: Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

F2 · price: These employee restricted stock units were granted on the transaction date. 25% of the restricted stock units will vest on the first four anniversaries of the grant date. Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

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.