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MACFARLANE CHARLES S

Disclosed activity across 1 company

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66704
SEC CIK
0001278053

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Otter Tail CorpOTTR · Entity 4087President & CEOFebruary 10, 2026February 12, 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.

Otter Tail Corp

Report date February 10, 2026 · Filed February 12, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect275,112 Reported balance After 2026-02-11 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-02-11 · Grant · Acquired 47,700 · Balance 275,112

F1: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2023).

Common StockSEC Table I · non-derivativeDirect251,597 Reported balance After 2026-02-11 transaction · row 2 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 2 · 2026-02-11 · Tax withholding · Disposed 23,515 · Balance 251,597

F2: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect9,400 Reported balance After 2026-02-10 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-02-10 · Grant · Acquired 9,400 · Balance 9,400

F4: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect2,500 Reported balance Holding disclosure · report date 2026-02-10 · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · Balance 2,500

F4: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect3,950 Reported balance Holding disclosure · report date 2026-02-10 · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · Balance 3,950

F4: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect7,425 Reported balance Holding disclosure · report date 2026-02-10 · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · Balance 7,425

F4: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.

Common StockSEC Table I · non-derivativeIndirectby ESOP3,051 Reported balance Holding disclosure · report date 2026-02-10 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 3,051

Common StockSEC Table I · non-derivativeIndirectby Spousal Lifetime Access Trust75,459 Reported balance Holding disclosure · report date 2026-02-10 · row 4 Holding and transaction disclosures are not merged.
1 source row

Row 4 · Balance 75,459

Filing footnotes · ownership attribution and instrument terms

F1: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2023).

F2: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

F4: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5: The restricted stock units vest in four equal annual installments beginning the date shown above.

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
February 11, 2026 Filed Feb 12, 2026 14:53 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 23,515 $86.43 $2,032,401.45
Disclosure

SEC source: 0001278053-26-000005 · wk-form4_1770908014.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 251,597

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 11, 2026 Filed Feb 12, 2026 14:53 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 47,700 $86.43 $4,122,711.00
Disclosure

SEC source: 0001278053-26-000005 · wk-form4_1770908014.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 275,112

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2023).

Read SEC document
February 10, 2026 Filed Feb 12, 2026 14:53 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 9,400 $0.00 $0.00
Disclosure

SEC source: 0001278053-26-000005 · wk-form4_1770908014.xml · derivative · entry 5

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,400

Underlying: Common Stock · 9,400 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,475 $0.00 $0.00
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · derivative · entry 8

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,425

Underlying: Common Stock · 7,425 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 1,975 $0.00 $0.00
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · derivative · entry 7

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,950

Underlying: Common Stock · 3,950 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,500 $0.00 $0.00
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500

Underlying: Common Stock · 2,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,175 $0.00 $0.00
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · derivative · entry 5

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 4,277 $87.83 $375,648.91
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 227,412

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 06, 2026 Filed Feb 9, 2026 22:05 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionCommon Stock 9,125 Not disclosed Not disclosed
Disclosure

SEC source: 0001278053-26-000002 · wk-form4_1770674731.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,689

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

Read SEC document
February 12, 2025 Filed Feb 13, 2025 22:10 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 20,435 $79.62 $1,626,932.53
Disclosure

SEC source: 0001466593-25-000023 · wk-form4_1739484651.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 221,495

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 12, 2025 Filed Feb 13, 2025 22:10 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 41,440 $79.62 $3,299,245.60
Disclosure

SEC source: 0001466593-25-000023 · wk-form4_1739484651.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 241,930

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2022).

Read SEC document
February 11, 2025 Filed Feb 13, 2025 22:10 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 9,900 $0.00 $0.00
Disclosure

SEC source: 0001466593-25-000023 · wk-form4_1739484651.xml · derivative · entry 5

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,900

Underlying: Common Stock · 9,900 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 1,975 $0.00 $0.00
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · derivative · entry 8

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,925

Underlying: Common Stock · 5,925 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,500 $0.00 $0.00
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · derivative · entry 7

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,175 $0.00 $0.00
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,175

Underlying: Common Stock · 2,175 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,875 $0.00 $0.00
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · derivative · entry 5

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 4,464 $78.99 $352,611.36
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,490

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 06, 2025 Filed Feb 7, 2025 19:32 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionCommon Stock 9,525 Not disclosed Not disclosed
Disclosure

SEC source: 0001466593-25-000010 · wk-form4_1738956721.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 204,954

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

Read SEC document
March 12, 2024 Filed Mar 13, 2024 13:52 UTC Otter Tail Corp OTTR · Entity 4087 GiftCommon Stock 23,046 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000059 · wk-form4_1710337928.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · by Grantor Retained Annuity Trust

Disclosed balance after: 0

F1 · shares: On March 1, 2021, the reporting person contributed 54,884 shares of Otter Tail Corporation common stock to a grantor retained annuity trust for the benefit of himself and his two adult children. Upon termination of the trust on March 12, 2024, 23,046 of the shares were transferred to the trusts of the reporting person`s children and 9,072 shares were distributed back to the reporting person`s direct holdings. The remaining 22,766 shares were previously distributed to the reporting person and continue to be reported in this Form 4 as directly owned.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,500 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · derivative · entry 12

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,500

Underlying: Common Stock · 7,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,175 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · derivative · entry 11

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,350

Underlying: Common Stock · 4,350 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,875 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · derivative · entry 10

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,875

Underlying: Common Stock · 2,875 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,000 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · derivative · entry 9

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 7,900 $0.00 $0.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · derivative · entry 8

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,901

Underlying: Common Stock · 7,900 shares

Expires not disclosed

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 4,475 $93.33 $417,651.75
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · nonDerivative · entry 4

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,428

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F4 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionCommon Stock 9,550 $93.33 $891,301.50
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · nonDerivative · entry 3

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,903

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 29,576 $93.33 $2,760,328.08
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,353

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

Read SEC document
February 06, 2024 Filed Feb 8, 2024 21:33 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 60,000 $93.33 $5,599,800.00
Disclosure

SEC source: 0001466593-24-000020 · wk-form4_1707427983.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 209,929

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2021).

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February 07, 2023 Filed Feb 9, 2023 21:31 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 10,000 $0.00 $0.00
Disclosure

SEC source: 0001466593-23-000039 · wf-form4_167597823497205.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 10,000 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 07, 2023 Filed Feb 9, 2023 21:31 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 20,443 $64.65 $1,321,639.95
Disclosure

SEC source: 0001466593-23-000039 · wf-form4_167597823497205.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,400

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 07, 2023 Filed Feb 9, 2023 21:31 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 41,400 $64.65 $2,676,510.00
Disclosure

SEC source: 0001466593-23-000039 · wf-form4_167597823497205.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 158,843

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award (granted in 2020).

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,175 $0.00 $0.00
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · derivative · entry 9

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,525

Underlying: Common Stock · 6,525 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,875 $0.00 $0.00
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · derivative · entry 8

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,750

Underlying: Common Stock · 5,750 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,000 $0.00 $0.00
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · derivative · entry 7

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Common Stock · 2,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 1,975 $0.00 $0.00
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

F4 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F4 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 4,230 $65.34 $276,367.05
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,443

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 06, 2023 Filed Feb 8, 2023 21:29 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionCommon Stock 9,025 Not disclosed Not disclosed
Disclosure

SEC source: 0001466593-23-000027 · wf-form4_167589174678397.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 121,673

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation stock.

Read SEC document
February 07, 2022 Filed Feb 9, 2022 16:19 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 8,700 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-002828 · rdgdoc.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,700

Underlying: Common Stock · 8,700 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 07, 2022 Filed Feb 9, 2022 16:19 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 20,436 $61.37 $1,254,157.32
Disclosure

SEC source: 0001437749-22-002828 · rdgdoc.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 99,432

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 07, 2022 Filed Feb 9, 2022 16:19 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 41,400 $61.37 $2,540,718.00
Disclosure

SEC source: 0001437749-22-002828 · rdgdoc.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 119,868

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award(granted in 2019).

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,875 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · derivative · entry 9

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,625

Underlying: Common Stock · 8,625 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 2,000 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · derivative · entry 8

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,000

Underlying: Common Stock · 4,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 1,975 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · derivative · entry 7

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,975

Underlying: Common Stock · 1,975 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionRestricted Stock Units · Derivative 1,800 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · derivative · entry 6

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 0 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 4,055 $60.90 $246,929.23
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,468

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

F4 · balance_after: The reporting person no longer has a reportable beneficial interest in 2,082 shares of Otter Tail Corporation stock owned by his daughter and included in the reporting person's prior reports as indirect holdings.

Read SEC document
February 06, 2022 Filed Feb 7, 2022 23:02 UTC Otter Tail Corp OTTR · Entity 4087 Exercise / conversionCommon Stock 8,650 Not disclosed Not disclosed
Disclosure

SEC source: 0001437749-22-002641 · rdgdoc.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,523

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

Read SEC document
October 29, 2021 Filed Jan 24, 2022 20:49 UTC Otter Tail Corp OTTR · Entity 4087 GiftCommon Stock 75,459 $0.00 $0.00
Disclosure

SEC source: 0001437749-22-001491 · rdgdoc.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · by Spousal Lifetime Access Trust

Disclosed balance after: 75,459

Read SEC document
February 10, 2021 Filed Feb 12, 2021 17:16 UTC Otter Tail Corp OTTR · Entity 4087 GrantRestricted Stock Units · Derivative 11,500 $0.00 $0.00
Disclosure

SEC source: 0001437749-21-002715 · rdgdoc.xml · derivative · entry 5

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,500

Underlying: Common Stock · 11,500 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Otter Tail Corporation common stock.

F5 · derivative.exercise_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

F5 · derivative.expiration_date: The restricted stock units vest in four equal annual installments beginning the date shown above.

Read SEC document
February 10, 2021 Filed Feb 12, 2021 17:16 UTC Otter Tail Corp OTTR · Entity 4087 Tax withholdingCommon Stock 13,495 $42.35 $571,445.78
Disclosure

SEC source: 0001437749-21-002715 · rdgdoc.xml · nonDerivative · entry 2

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 203,001

F2 · shares: These shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F3 · balance_after: Total direct holdings include shares acquired through the Dividend Reinvestment Plan, the Employee Stock Purchase Plan and shares acquired pursuant to Stock Options, Restricted Stock Awards, Restricted Stock Units and Performance Share Awards.

Read SEC document
February 10, 2021 Filed Feb 12, 2021 17:16 UTC Otter Tail Corp OTTR · Entity 4087 GrantCommon Stock 27,315 $42.35 $1,156,653.68
Disclosure

SEC source: 0001437749-21-002715 · rdgdoc.xml · nonDerivative · entry 1

MACFARLANE CHARLES S · CIK 0001278053 · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,496

F1 · shares: Represents shares received upon the vesting of certain performance criteria in connection with a Performance Share Award(granted in 2018).

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.