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Hankamer Brittany

Disclosed activity across 1 company

Tapewire entity
22334
SEC CIK
0001990909

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Avantor, Inc.AVTR · Entity 3546EVP, Chief HR OfficerAugust 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.

Avantor, Inc.

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

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect248,864 Reported balance After 2026-08-14 transaction · row 1
1 source row

Row 1 · 2026-08-14 · Tax withholding · Disposed 181 · Balance 248,864

F1: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Filing footnotes · ownership attribution and instrument terms

F1: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

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 14, 2026 Filed Aug 18, 2026 20:12 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 181 $13.66 $2,472.46
Disclosure

SEC source: 0001628280-26-057645 · wk-form4_1787083918.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 248,864

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 24, 2026 Filed Feb 25, 2026 22:28 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 359 $9.11 $3,270.49
Disclosure

SEC source: 0001628280-26-011811 · wk-form4_1772058478.xml · nonDerivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 249,045

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 23, 2026 Filed Feb 25, 2026 22:28 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 1,324 $8.89 $11,770.36
Disclosure

SEC source: 0001628280-26-011811 · wk-form4_1772058478.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 249,404

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 20, 2026 Filed Feb 24, 2026 01:53 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 1,453 $9.03 $13,120.59
Disclosure

SEC source: 0001628280-26-010833 · wk-form4_1771898036.xml · nonDerivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 250,728

F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 19, 2026 Filed Feb 24, 2026 01:53 UTC Avantor, Inc. AVTR · Entity 3546 GrantStock Options (Right to Buy) · Derivative 317,310 $0.00 Strike: $11.05 $0.00
Disclosure

SEC source: 0001628280-26-010833 · wk-form4_1771898036.xml · derivative · entry 3

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 317,310

Underlying: Common Stock · 317,310 shares

Expires 2036-02-19

F3 · derivative.exercise_date: Reflects a grant of stock options that vest in three equal installments beginning on February 19, 2027.

Read SEC document
February 19, 2026 Filed Feb 24, 2026 01:53 UTC Avantor, Inc. AVTR · Entity 3546 GrantCommon Stock 80,618 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-010833 · wk-form4_1771898036.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 252,181

F1 · kind: Reflects a grant of restricted stock units that vest in three equal annual installments beginning on February 19, 2027.

Read SEC document
August 14, 2025 Filed Aug 15, 2025 20:35 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 181 $12.98 $2,349.38
Disclosure

SEC source: 0001722482-25-000202 · wk-form4_1755290112.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,563

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
May 09, 2025 Filed May 12, 2025 21:34 UTC Avantor, Inc. AVTR · Entity 3546 GrantCommon Stock 122,149 $0.00 $0.00
Disclosure

SEC source: 0001722482-25-000153 · wk-form4_1747085675.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,744

F1 · kind: Reflects a grant of restricted stock units that vest on May 9, 2027.

Read SEC document
February 25, 2025 Filed Feb 26, 2025 21:44 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 369 $17.56 $6,479.64
Disclosure

SEC source: 0001722482-25-000046 · wk-form4_1740606260.xml · nonDerivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,595

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 24, 2025 Filed Feb 26, 2025 21:44 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 437 $17.47 $7,634.39
Disclosure

SEC source: 0001722482-25-000046 · wk-form4_1740606260.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,964

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 23, 2025 Filed Feb 24, 2025 22:30 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 1,537 $17.30 $26,590.10
Disclosure

SEC source: 0001722482-25-000038 · wk-form4_1740436247.xml · nonDerivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,401

F2 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 20, 2025 Filed Feb 24, 2025 22:30 UTC Avantor, Inc. AVTR · Entity 3546 GrantStock Options (Right to Buy) · Derivative 41,551 $0.00 Strike: $17.49 $0.00
Disclosure

SEC source: 0001722482-25-000038 · wk-form4_1740436247.xml · derivative · entry 3

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,551

Underlying: Common Stock · 41,551 shares

Expires 2035-02-20

F3 · derivative.exercise_date: Reflects a grant of stock options that vest in three equal installments beginning on February 20, 2026.

Read SEC document
February 20, 2025 Filed Feb 24, 2025 22:30 UTC Avantor, Inc. AVTR · Entity 3546 GrantCommon Stock 17,152 $0.00 $0.00
Disclosure

SEC source: 0001722482-25-000038 · wk-form4_1740436247.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,938

F1 · kind: Reflects a grant of restricted stock units that vest in three equal annual installments beginning on February 20, 2026.

Read SEC document
August 14, 2024 Filed Aug 16, 2024 20:39 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 180 $25.07 $4,512.60
Disclosure

SEC source: 0001722482-24-000153 · wk-form4_1723840764.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,786

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 25, 2024 Filed Feb 26, 2024 23:56 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 369 $24.35 $8,985.15
Disclosure

SEC source: 0001722482-24-000041 · wk-form4_1708991743.xml · nonDerivative · entry 3

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,673

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 24, 2024 Filed Feb 26, 2024 23:56 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 437 $24.35 $10,640.95
Disclosure

SEC source: 0001722482-24-000041 · wk-form4_1708991743.xml · nonDerivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,042

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 23, 2024 Filed Feb 26, 2024 23:56 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 421 $24.35 $10,251.35
Disclosure

SEC source: 0001722482-24-000041 · wk-form4_1708991743.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,479

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
February 23, 2024 Filed Feb 27, 2024 22:04 UTC Avantor, Inc. AVTR · Entity 3546 GrantStock Options (Right to Buy) · Derivative 27,612 $0.00 Strike: $24.35 $0.00
Disclosure

SEC source: 0001722482-24-000066 · wk-form4_1709071452.xml · derivative · entry 2

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,612

Underlying: Common Stock · 27,612 shares

Expires 2034-02-23

F2 · derivative.exercise_date: Reflects a grant of stock options that vest in three equal installments beginning on February 23, 2025.

Read SEC document
February 23, 2024 Filed Feb 27, 2024 22:04 UTC Avantor, Inc. AVTR · Entity 3546 GrantCommon Stock 11,293 $0.00 $0.00
Disclosure

SEC source: 0001722482-24-000066 · wk-form4_1709071452.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,966

F1 · kind: Reflects a grant of restricted stock units that vest in three equal annual installments beginning on February 23, 2025.

Read SEC document
February 20, 2024 Filed Feb 22, 2024 22:04 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 289 $24.05 $6,950.45
Disclosure

SEC source: 0001722482-24-000026 · wk-form4_1708639482.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,900

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

Read SEC document
September 05, 2023 Filed Sep 5, 2023 20:58 UTC Avantor, Inc. AVTR · Entity 3546 Tax withholdingCommon Stock 309 $21.70 $6,705.30
Disclosure

SEC source: 0001722482-23-000170 · wk-form4_1693947495.xml · nonDerivative · entry 1

Hankamer Brittany · CIK 0001990909 · EVP, Chief HR Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,189

F1 · kind: Represents the number of shares withheld by the Issuer to cover tax withholding obligations in connection with the vesting of RSUs.

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.