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person · Reporting owner

Peters Mark T

Disclosed activity across 3 companies

Tapewire entity
38353
SEC CIK
0001846010

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
IDACORP INCIDA · Entity 3650DirectorMarch 01, 2026March 04, 2026
IDAHO POWER COIDAHOPWR · Entity 45531DirectorFebruary 11, 2021February 18, 2021
Oklo Inc.OKLO · Entity 593DirectorJune 11, 2026June 15, 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.

IDACORP INC

Report date March 01, 2026 · Filed March 04, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect7,371 Reported balance After 2026-03-01 transaction · row 1
1 source row

Row 1 · 2026-03-01 · Grant · Acquired 1,007 · Balance 7,371

F1: Annual stock retainer issued under the IDACORP, Inc. 2000 Long-Term Incentive and Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

Filing footnotes · ownership attribution and instrument terms

F1: Annual stock retainer issued under the IDACORP, Inc. 2000 Long-Term Incentive and Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

IDAHO POWER CO

Report date February 11, 2021 · Filed February 18, 2021

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Preferred StockSEC Table I · non-derivativeDirect0 Reported balance Holding disclosure · report date 2021-02-11 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 0

Oklo Inc.

Report date June 11, 2026 · Filed June 15, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect7,912 Reported balance After 2026-06-11 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-11 · Grant · Acquired 3,213 · Balance 7,912

F1: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2: The restricted stock units vest in full on June 3, 2027.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2: The restricted stock units vest in full on June 3, 2027.

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
June 11, 2026 Filed Jun 15, 2026 20:32 UTC Oklo Inc. OKLO · Entity 593 GrantRestricted Stock Units · Derivative 3,213 $0.00 $0.00
Disclosure

SEC source: 0001849056-26-000030 · wk-form4_1781555526.xml · derivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,912

Underlying: Class A Common Stock · 3,213 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The restricted stock units vest in full on June 3, 2027.

F2 · derivative.expiration_date: The restricted stock units vest in full on June 3, 2027.

Read SEC document
April 10, 2026 Filed Apr 20, 2026 21:43 UTC Oklo Inc. OKLO · Entity 593 GrantRestricted Stock Units · Derivative 4,699 $0.00 $0.00
Disclosure

SEC source: 0001849056-26-000018 · wk-form4_1776721392.xml · derivative · entry 2

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,699

Underlying: Class A Common Stock · 4,699 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's Class A Common Stock.

F2 · derivative.exercise_date: The restricted stock units vest in full on April 10, 2027.

F2 · derivative.expiration_date: The restricted stock units vest in full on April 10, 2027.

Read SEC document
March 01, 2026 Filed Mar 4, 2026 00:28 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,007 $0.00 $0.00
Disclosure

SEC source: 0001057877-26-000082 · form4.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,371

F1 · shares: Annual stock retainer issued under the IDACORP, Inc. 2000 Long-Term Incentive and Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

Read SEC document
March 01, 2025 Filed Mar 4, 2025 22:17 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,187 $0.00 $0.00
Disclosure

SEC source: 0001062993-25-004372 · form4.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,364

F1 · shares: Annual stock retainer issued under the IDACORP, Inc. Non-Employee Directors Stock Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

Read SEC document
March 01, 2024 Filed Mar 4, 2024 22:40 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,588 $0.00 $0.00
Disclosure

SEC source: 0001062993-24-005267 · form4.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,177

F1 · shares: Annual stock retainer issued under the IDACORP, Inc. Non-Employee Directors Stock Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

Read SEC document
March 01, 2023 Filed Mar 2, 2023 00:05 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,160 $0.00 $0.00
Disclosure

SEC source: 0001062993-23-005442 · form4.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,589

F1 · shares: Annual stock retainer issued under the IDACORP, Inc. Non-Employee Directors Stock Compensation Plan in a transaction exempt under Rule 16(b)-3 of the Securities Exchange Act of 1934.

Read SEC document
March 01, 2022 Filed Mar 2, 2022 22:14 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,154 $0.00 $0.00
Disclosure

SEC source: 0001062993-22-006381 · form4.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,429

Read SEC document
March 01, 2021 Filed Mar 3, 2021 23:56 UTC IDACORP INC IDA · Entity 3650 GrantCommon Stock 1,275 $0.00 $0.00
Disclosure

SEC source: 0001057877-21-000078 · edgar.xml · nonDerivative · entry 1

Peters Mark T · CIK 0001846010 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,275

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.