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person · Reporting owner

Biebighauser Lon A.

Disclosed activity across 1 company

Tapewire entity
22671
SEC CIK
0002050559

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
FIRST FINANCIAL BANKSHARES INCFFIN · Entity 3952Trust Company PresidentAugust 14, 2026August 18, 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.

FIRST FINANCIAL BANKSHARES INC

Report date August 14, 2026 · Filed August 18, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect11,778 Ending reported balance After 2026-08-17 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2026-08-14 · Grant · Acquired 1,429 · Balance 12,442

F1: Reflects grant of restricted stock units (RSUs) which vest in three approximately equal installments on each of the three anniversaries of the grant date.

Row 2 · 2026-08-14 · Tax withholding · Disposed 94 · Balance 12,348

F2: The reporting person elected, in accordance with the Registrant's 2021 Omnibus Stock and Incentive Plan, to exercise his right to have the Registrant withhold 94 shares of the Registrant's common stock to pay income taxes related to vesting of previously granted restricted stock units.

Row 3 · 2026-08-17 · Gift · Disposed 570 · Balance 11,778

Employee Stock Option, Right to BuySEC Table II · derivative / convertible security · Conversion / exercise price $35.28 · Expires 2036-08-14Direct2,653 Reported balance After 2026-08-14 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-08-14 · Grant · Acquired 2,653 · Balance 2,653

F3: The options vest 33.33% after one year from the grant date, 66.66% after the second year, and 100% after the third year.

Filing footnotes · ownership attribution and instrument terms

F1: Reflects grant of restricted stock units (RSUs) which vest in three approximately equal installments on each of the three anniversaries of the grant date.

F2: The reporting person elected, in accordance with the Registrant's 2021 Omnibus Stock and Incentive Plan, to exercise his right to have the Registrant withhold 94 shares of the Registrant's common stock to pay income taxes related to vesting of previously granted restricted stock units.

F3: The options vest 33.33% after one year from the grant date, 66.66% after the second year, and 100% after the third year.

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 17, 2026 Filed Aug 18, 2026 20:51 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 GiftCommon Stock 570 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-355636 · ownership.xml · nonDerivative · entry 3

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,778

Read SEC document
August 14, 2026 Filed Aug 18, 2026 20:51 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 GrantEmployee Stock Option, Right to Buy · Derivative 2,653 $35.28 Strike: $35.28 $93,597.84
Disclosure

SEC source: 0001193125-26-355636 · ownership.xml · derivative · entry 4

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,653

Underlying: Common Stock · 2,653 shares

Expires 2036-08-14

F3 · derivative.exercise_date: The options vest 33.33% after one year from the grant date, 66.66% after the second year, and 100% after the third year.

Read SEC document
August 14, 2026 Filed Aug 18, 2026 20:51 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 Tax withholdingCommon Stock 94 $35.28 $3,316.32
Disclosure

SEC source: 0001193125-26-355636 · ownership.xml · nonDerivative · entry 2

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,348

F2 · shares: The reporting person elected, in accordance with the Registrant's 2021 Omnibus Stock and Incentive Plan, to exercise his right to have the Registrant withhold 94 shares of the Registrant's common stock to pay income taxes related to vesting of previously granted restricted stock units.

Read SEC document
August 14, 2026 Filed Aug 18, 2026 20:51 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 GrantCommon Stock 1,429 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-355636 · ownership.xml · nonDerivative · entry 1

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,442

F1 · shares: Reflects grant of restricted stock units (RSUs) which vest in three approximately equal installments on each of the three anniversaries of the grant date.

Read SEC document
May 06, 2026 Filed May 7, 2026 20:20 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 Exercise / conversionEmployee Stock Option, Right to Buy · Derivative 490 $21.18 Strike: $21.18 $10,378.20
Disclosure

SEC source: 0001193125-26-212056 · ownership.xml · derivative · entry 2

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 490 shares

Expires 2027-06-12

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.

Read SEC document
May 06, 2026 Filed May 7, 2026 20:20 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 Exercise / conversionCommon Stock 490 $21.18 $10,378.20
Disclosure

SEC source: 0001193125-26-212056 · ownership.xml · nonDerivative · entry 1

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,013

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.

Read SEC document
August 14, 2025 Filed Aug 18, 2025 18:52 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 GrantEmployee Stock Option, Right to Buy · Derivative 3,872 $36.43 Strike: $36.43 $141,056.96
Disclosure

SEC source: 0000950170-25-109639 · ownership.xml · derivative · entry 2

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,872

Underlying: Common Stock · 3,872 shares

Expires 2035-08-14

F2 · derivative.exercise_date: The options vest 33.33% after one year from the grant date, 66.66% after the second year, and 100% after the third year.

Read SEC document
August 14, 2025 Filed Aug 18, 2025 18:52 UTC FIRST FINANCIAL BANKSHARES INC FFIN · Entity 3952 GrantCommon Stock 1,153 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-109639 · ownership.xml · nonDerivative · entry 1

Biebighauser Lon A. · CIK 0002050559 · Trust Company President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,523

F1 · shares: Reflects grant of restricted stock units (RSUs) which vest in three approximately equal installments on each of the three anniversaries of the grant 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.