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person · Reporting owner

Knell Michael Gunnar

Disclosed activity across 2 companies

Tapewire entity
25131
SEC CIK
0001543779

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BRUKER CORPBRKR · Entity 3609Chief Accounting OfficerOctober 04, 2016October 06, 2016
CHARLES RIVER LABORATORIES INTERNATIONAL, INC.CRL · Entity 3398SVP, Finance and CAOAugust 06, 2026August 10, 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.

BRUKER CORP

Report date October 04, 2016 · Filed October 06, 2016

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect1,839 Reported balance After 2016-10-04 transaction · row 1
1 source row

Row 1 · 2016-10-04 · Grant · Acquired 1,839 · Balance 1,839

F1: Shares are represented by restricted stock units. Shares of restricted common stock vest in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $22.19 · Expires 2026-10-04Direct5,856 Reported balance After 2016-10-04 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2016-10-04 · Grant · Acquired 5,856 · Balance 5,856

F2: The option vests in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

Filing footnotes · ownership attribution and instrument terms

F1: Shares are represented by restricted stock units. Shares of restricted common stock vest in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

F2: The option vests in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

Report date August 06, 2026 · Filed August 10, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect11,852 Ending reported balance After 2026-08-06 transaction · row 12
12 source rows · reconciled sequence

Row 1 · 2026-08-06 · Sale · Disposed 1,274 · Balance 14,878

F1: This transaction was executed in multiple trades at prices ranging from $258.77 to $259.43. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 2 · 2026-08-06 · Sale · Disposed 901 · Balance 13,977

F2: This transaction was executed in multiple trades at prices ranging from $259.97 to $260.94. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 3 · 2026-08-06 · Sale · Disposed 810 · Balance 13,167

F3: This transaction was executed in multiple trades at prices ranging from $261.00 to $261.84. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 4 · 2026-08-06 · Sale · Disposed 213 · Balance 12,954

F4: This transaction was executed in multiple trades at prices ranging from $262.26 to $262.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 5 · 2026-08-06 · Sale · Disposed 620 · Balance 12,334

F5: This transaction was executed in multiple trades at prices ranging from $263.39 to $264.29. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 6 · 2026-08-06 · Sale · Disposed 482 · Balance 11,852

F6: This transaction was executed in multiple trades at prices ranging from $264.91 to $265.60. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Row 7 · 2026-08-06 · Exercise / conversion · Acquired 404 · Balance 12,256

Row 8 · 2026-08-06 · Exercise / conversion · Acquired 1,205 · Balance 13,461

Row 9 · 2026-08-06 · Exercise / conversion · Acquired 736 · Balance 14,197

Row 10 · 2026-08-06 · Sale · Disposed 404 · Balance 13,793

Row 11 · 2026-08-06 · Sale · Disposed 1,205 · Balance 12,588

Row 12 · 2026-08-06 · Sale · Disposed 736 · Balance 11,852

Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $179.66 · Expires 2030-05-29Direct0 Reported balance After 2026-08-06 transaction · row 13 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 13 · 2026-08-06 · Exercise / conversion · Disposed 404 · Balance 0

Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $194.12 · Expires 2033-05-26Direct402 Reported balance After 2026-08-06 transaction · row 14 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 14 · 2026-08-06 · Exercise / conversion · Disposed 1,205 · Balance 402

Stock Options (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $208.44 · Expires 2034-05-31Direct736 Reported balance After 2026-08-06 transaction · row 15 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 15 · 2026-08-06 · Exercise / conversion · Disposed 736 · Balance 736

Filing footnotes · ownership attribution and instrument terms

F1: This transaction was executed in multiple trades at prices ranging from $258.77 to $259.43. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2: This transaction was executed in multiple trades at prices ranging from $259.97 to $260.94. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3: This transaction was executed in multiple trades at prices ranging from $261.00 to $261.84. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F4: This transaction was executed in multiple trades at prices ranging from $262.26 to $262.50. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F5: This transaction was executed in multiple trades at prices ranging from $263.39 to $264.29. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F6: This transaction was executed in multiple trades at prices ranging from $264.91 to $265.60. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

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
May 29, 2020 Filed Jun 2, 2020 18:15 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantCommon Stock 484 $0.00 $0.00
Disclosure

SEC source: 0001127602-20-018388 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,414

F1 · shares: Unvested restricted stock units vest in one-fourth increments on May 29, 2021, 2022, 2023 and 2024.

Read SEC document
May 01, 2020 Filed May 4, 2020 16:27 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 62 $144.67 $8,969.54
Disclosure

SEC source: 0001127602-20-015124 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,930

Read SEC document
February 23, 2020 Filed Feb 24, 2020 17:20 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 56 $173.64 $9,723.84
Disclosure

SEC source: 0001127602-20-007121 · form4.xml · nonDerivative · entry 2

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,992

Read SEC document
February 22, 2020 Filed Feb 24, 2020 17:20 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 51 $173.64 $8,855.64
Disclosure

SEC source: 0001127602-20-007121 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,048

Read SEC document
May 01, 2019 Filed May 1, 2019 17:29 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 62 $140.47 $8,709.14
Disclosure

SEC source: 0001127602-19-016669 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,099

Read SEC document
February 23, 2019 Filed Feb 26, 2019 19:44 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 56 $144.67 $8,101.52
Disclosure

SEC source: 0001127602-19-008318 · form4.xml · nonDerivative · entry 2

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,161

Read SEC document
February 22, 2019 Filed Feb 26, 2019 19:44 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantStock Options (Right to Buy) · Derivative 2,941 $0.00 Strike: $144.67 $0.00
Disclosure

SEC source: 0001127602-19-008318 · form4.xml · derivative · entry 3

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,941

Underlying: Common Stock · 2,941 shares

Expires 2024-02-22

F2 · derivative.exercise_date: Stock options vest as follows: 735 options vest one (1) year from the date of grant, 735 options vest two (2) years from the date of grant, 735 options vest (3) years from the date of grant, and 736 options vest four (4) years from the date of grant.

Read SEC document
February 22, 2019 Filed Feb 26, 2019 19:44 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantCommon Stock 690 $0.00 $0.00
Disclosure

SEC source: 0001127602-19-008318 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,217

F1 · security: Consists of 690 unvested restricted stock units that vest as follows: 172 shares vest one (1) year from the date of issuance, 173 shares vest two (2) years from the date of issuance, 172 shares vest three (3) years from the date of issuance, and 173 shares vest four (4) years from the date of issuance.

Read SEC document
May 01, 2018 Filed May 1, 2018 20:49 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 Tax withholdingCommon Stock 61 $104.19 $6,355.59
Disclosure

SEC source: 0001127602-18-015752 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,527

Read SEC document
February 23, 2018 Filed Feb 26, 2018 18:57 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantStock Options (Right to Buy) · Derivative 3,419 $0.00 Strike: $109.34 $0.00
Disclosure

SEC source: 0001127602-18-008322 · form4.xml · derivative · entry 2

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,419

Underlying: Common Stock · 3,419 shares

Expires 2023-02-23

F2 · derivative.exercise_date: Stock options vest as follows: 854 options vest one (1) year from the date of grant, 855 options vest two (2) years from the date of grant, 855 options vest three (3) years from the date of grant, and 855 options vest four (4) years from the date of grant.

Read SEC document
February 23, 2018 Filed Feb 26, 2018 18:57 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantCommon Stock 758 $0.00 $0.00
Disclosure

SEC source: 0001127602-18-008322 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,588

F1 · security: Consists of 758 unvested restricted stock units that vest as follows: 189 shares vest one (1) year from the date of issuance, 190 shares vest two (2) years from the date of issuance, 189 shares vest three (3) years from the date of issuance and 190 shares vest four (4) years from the date of issuance.

Read SEC document
May 01, 2017 Filed May 3, 2017 19:08 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantStock Options (Right to Buy) · Derivative 1,330 $0.00 Strike: $90.43 $0.00
Disclosure

SEC source: 0001127602-17-016577 · form4.xml · derivative · entry 2

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,330

Underlying: Common Stock · 1,330 shares

Expires 2022-05-01

F2 · derivative.exercise_date: Stock options vest as follows: 332 options vest one (1) year from the date of grant, 333 options vest two (2) years from the date of grant, 332 options vest three (3) years from the date of grant, and 333 options vest four (4) years from the date of grant.

Read SEC document
May 01, 2017 Filed May 3, 2017 19:08 UTC CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL · Entity 3398 GrantCommon Stock 830 $0.00 $0.00
Disclosure

SEC source: 0001127602-17-016577 · form4.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · CSVP&Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 830

F1 · security: Consists of 830 unvested restricted stock units that vest as follows: 207 shares vest one (1) year from the date of issuance, 208 shares vest two (2) years from the date of issuance, 207 shares vest three (3) years from the date of issuance and 208 shares vest four (4) years from the date of issuance.

Read SEC document
October 04, 2016 Filed Oct 6, 2016 17:27 UTC BRUKER CORP BRKR · Entity 3609 GrantStock Option (Right to Buy) · Derivative 5,856 $0.00 Strike: $22.19 $0.00
Disclosure

SEC source: 0001179110-16-030517 · edgar.xml · derivative · entry 2

Knell Michael Gunnar · CIK 0001543779 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,856

Underlying: Common Stock · 5,856 shares

Expires 2026-10-04

F2 · derivative.exercise_date: The option vests in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

Read SEC document
October 04, 2016 Filed Oct 6, 2016 17:27 UTC BRUKER CORP BRKR · Entity 3609 GrantCommon Stock 1,839 $0.00 $0.00
Disclosure

SEC source: 0001179110-16-030517 · edgar.xml · nonDerivative · entry 1

Knell Michael Gunnar · CIK 0001543779 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,839

F1 · shares: Shares are represented by restricted stock units. Shares of restricted common stock vest in four approximately equal annual installments on the anniversary of the grant date, commencing October 4, 2017.

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.