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person · Reporting owner

Guindo Chirfi

Disclosed activity across 3 companies

Tapewire entity
10468
SEC CIK
0001722753

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BIOGEN INC.BIIB · Entity 1675Head of Glob Prod Strat & ComFebruary 18, 2022February 23, 2022
Beam Therapeutics Inc.BEAM · Entity 4227DirectorJune 03, 2026June 05, 2026
Merck & Co., Inc.MRK · Entity 2807EVP, Access, Policy & CommsAugust 13, 2026August 13, 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.

BIOGEN INC.

Report date February 18, 2022 · Filed February 23, 2022

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect7,364 Ending reported balance After 2022-02-18 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2022-02-18 · Exercise / conversion · Acquired 1,981 · Balance 8,243

Row 2 · 2022-02-18 · Tax withholding · Disposed 879 · Balance 7,364

Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 · Expires 2024-02-18Direct12,519 Reported balance After 2022-02-18 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2022-02-18 · Exercise / conversion · Disposed 1,981 · Balance 12,519

F1: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price on the grant date]).

Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 · Expires 2024-02-18Direct9,668 Reported balance After 2022-02-18 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2022-02-18 · Other · Disposed 2,851 · Balance 9,668

F2: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F1: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price on the grant date]).

Filing footnotes · ownership attribution and instrument terms

F1: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price on the grant date]).

F2: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

Beam Therapeutics Inc.

Report date June 03, 2026 · Filed June 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $29.55 · Expires 2036-06-03Direct19,676 Reported balance After 2026-06-03 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-03 · Grant · Acquired 19,676 · Balance 19,676

F1: The option vests in full on the earlier of the first anniversary of the date of grant and immediately prior to the date of the next year's annual meeting of stockholders, subject to the reporting person's continued service to the board of directors of Beam Therapeutics Inc. through the vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The option vests in full on the earlier of the first anniversary of the date of grant and immediately prior to the date of the next year's annual meeting of stockholders, subject to the reporting person's continued service to the board of directors of Beam Therapeutics Inc. through the vesting date.

Merck & Co., Inc.

Report date August 13, 2026 · Filed August 13, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect36,613.127 Reported balance After 2026-08-13 transaction · row 1
1 source row

Row 1 · 2026-08-13 · Sale · Disposed 10,000 · Balance 36,613.127

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 13, 2026 Filed Aug 13, 2026 21:02 UTC Merck & Co., Inc. MRK · Entity 2807 SaleCommon Stock 10,000 $135.00 $1,350,000.00
Disclosure

SEC source: 0000310158-26-000223 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,613.127

Read SEC document
August 06, 2026 Filed Aug 7, 2026 20:17 UTC Merck & Co., Inc. MRK · Entity 2807 SaleCommon Stock 15,000 $131.00 $1,965,000.00
Disclosure

SEC source: 0000310158-26-000213 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,613.127

Read SEC document
June 03, 2026 Filed Jun 5, 2026 20:05 UTC Beam Therapeutics Inc. BEAM · Entity 4227 GrantStock Option (Right to Buy) · Derivative 19,676 $0.00 Strike: $29.55 $0.00
Disclosure

SEC source: 0001193125-26-259534 · ownership.xml · derivative · entry 1

Guindo Chirfi · CIK 0001722753 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,676

Underlying: Common Stock · 19,676 shares

Expires 2036-06-03

F1 · derivative.exercise_date: The option vests in full on the earlier of the first anniversary of the date of grant and immediately prior to the date of the next year's annual meeting of stockholders, subject to the reporting person's continued service to the board of directors of Beam Therapeutics Inc. through the vesting date.

Read SEC document
May 05, 2026 Filed May 7, 2026 15:36 UTC Merck & Co., Inc. MRK · Entity 2807 GrantStock Option (Right to Buy) · Derivative 19,402 $0.00 Strike: $113.15 $0.00
Disclosure

SEC source: 0000310158-26-000117 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,402

Underlying: Common Stock · 19,402 shares

Expires 2036-05-04

F3 · derivative.exercise_date: The option vests and becomes exercisable in equal installments on 5/5/2027, 5/5/2028, and, 5/5/2029.

Read SEC document
May 05, 2026 Filed May 7, 2026 15:36 UTC Merck & Co., Inc. MRK · Entity 2807 GrantRestricted Stock Unit · Derivative 6,628 $0.00 $0.00
Disclosure

SEC source: 0000310158-26-000117 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,628

Underlying: Common Stock · 6,628 shares

Expires 2029-05-05

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.

F2 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 5/5/2027, 5/5/2028, and, 5/5/2029.

Read SEC document
April 29, 2026 Filed May 1, 2026 22:54 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionRestricted Stock Unit · Derivative 1,967 $0.00 $0.00
Disclosure

SEC source: 0000310158-26-000102 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,935

Underlying: Common Stock · 1,967 shares

Expires 2028-04-29

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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.

F3 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/29/2026, 4/29/2027 and 4/29/2028.

Read SEC document
April 29, 2026 Filed May 1, 2026 22:54 UTC Merck & Co., Inc. MRK · Entity 2807 Tax withholdingCommon Stock 969 $110.03 $106,619.07
Disclosure

SEC source: 0000310158-26-000102 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,613.127

Read SEC document
April 29, 2026 Filed May 1, 2026 22:54 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionCommon Stock 1,967 $110.03 $216,429.01
Disclosure

SEC source: 0000310158-26-000102 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · EVP, Access, Policy & Comms

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,582.127

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
February 12, 2026 Filed Feb 12, 2026 21:02 UTC Merck & Co., Inc. MRK · Entity 2807 SaleCommon Stock 10,000 $121.46 $1,214,562.00
Disclosure

SEC source: 0000310158-26-000052 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,615.127

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.4400 to $121.5150, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote.

Read SEC document
February 09, 2026 Filed Feb 9, 2026 21:04 UTC Merck & Co., Inc. MRK · Entity 2807 SaleCommon Stock 10,000 $118.41 $1,184,101.00
Disclosure

SEC source: 0000310158-26-000048 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,615.127

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.4000 to $118.4502, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote.

Read SEC document
February 05, 2026 Filed Feb 6, 2026 21:10 UTC Merck & Co., Inc. MRK · Entity 2807 SaleCommon Stock 20,000 $121.88 $2,437,676.00
Disclosure

SEC source: 0000310158-26-000034 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,615.127

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $121.8400 to $121.9700, inclusive. The reporting person undertakes to provide to Merck & Co., Inc., any security holder of Merck & Co., Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above in this footnote.

Read SEC document
January 26, 2026 Filed Jan 28, 2026 21:08 UTC Merck & Co., Inc. MRK · Entity 2807 GrantCommon Stock 9,865 $107.40 $1,059,501.00
Disclosure

SEC source: 0000310158-26-000014 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,615.127

F1 · shares: Distribution of net after tax shares of common stock on satisfaction of performance criteria for performance share units granted on 3/31/23. Performance shares were paid out at 94 percent of target awards. Includes dividends accrued over the three-year performance period ending December 31, 2025.

F2 · balance_after: Holdings include shares acquired in dividend reinvestment transactions.

Read SEC document
August 04, 2025 Filed Aug 5, 2025 12:43 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionRestricted Stock Unit · Derivative 36,903 $0.00 $0.00
Disclosure

SEC source: 0000310158-25-000010 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 36,903 shares

Expires 2025-08-03

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 Merck & Co., Inc. common stock.

F4 · derivative.exercise_date: These restricted stock units vested and were distributed as shares of Merck & Co., Inc. common stock in three equal installments on 8/3/2023, 8/3/2024 and 8/3/2025 or, if such date was not a business day, the business day immediately thereafter.

F4 · derivative.expiration_date: These restricted stock units vested and were distributed as shares of Merck & Co., Inc. common stock in three equal installments on 8/3/2023, 8/3/2024 and 8/3/2025 or, if such date was not a business day, the business day immediately thereafter.

Read SEC document
August 04, 2025 Filed Aug 5, 2025 12:43 UTC Merck & Co., Inc. MRK · Entity 2807 Tax withholdingCommon Stock 18,175 $79.29 $1,441,095.75
Disclosure

SEC source: 0000310158-25-000010 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,233.973

Read SEC document
August 04, 2025 Filed Aug 5, 2025 12:43 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionCommon Stock 36,903 $79.29 $2,926,038.87
Disclosure

SEC source: 0000310158-25-000010 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,408.973

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 · balance_after: Holdings include shares acquired in dividend reinvestment transactions.

Read SEC document
June 04, 2025 Filed Jun 6, 2025 20:05 UTC Beam Therapeutics Inc. BEAM · Entity 4227 GrantStock Option (Right to Buy) · Derivative 33,662 $0.00 Strike: $17.15 $0.00
Disclosure

SEC source: 0000950170-25-083052 · ownership.xml · derivative · entry 1

Guindo Chirfi · CIK 0001722753 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,662

Underlying: Common Stock · 33,662 shares

Expires 2025-06-04

F1 · derivative.exercise_date: The option vests in full on the earlier of the first anniversary of the date of grant and immediately prior to the date of the next year's annual meeting of stockholders, subject to the reporting person's continued service to the board of directors of Beam Therapeutics Inc. through the vesting date.

Read SEC document
April 29, 2025 Filed May 1, 2025 21:45 UTC Merck & Co., Inc. MRK · Entity 2807 GrantStock Option (Right to Buy) · Derivative 26,867 $0.00 Strike: $84.71 $0.00
Disclosure

SEC source: 0001127602-25-013018 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,867

Underlying: Common Stock · 26,867 shares

Expires 2035-04-28

F5 · derivative.exercise_date: The option vests and becomes exercisable in three equal installments on 4/29/2026, 4/29/2027 and 4/29/2028.

Read SEC document
April 29, 2025 Filed May 1, 2025 21:45 UTC Merck & Co., Inc. MRK · Entity 2807 GrantRestricted Stock Unit · Derivative 5,902 $0.00 $0.00
Disclosure

SEC source: 0001127602-25-013018 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,902

Underlying: Common Stock · 5,902 shares

Expires 2028-04-29

F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.

F4 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 4/29/2026, 4/29/2027 and 4/29/2028.

Read SEC document
January 27, 2025 Filed Jan 29, 2025 23:07 UTC Merck & Co., Inc. MRK · Entity 2807 GrantCommon Stock 28,158 $97.94 $2,757,794.52
Disclosure

SEC source: 0001127602-25-002334 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,143.918

F1 · shares: Distribution of net after tax shares of common stock on satisfaction of performance criteria for performance share units granted on 8/3/22. Performance shares were paid out at 169 percent of target awards. Includes dividends accrued over the three-year performance period ending December 31, 2024.

F2 · balance_after: Holdings include shares acquired in dividend reinvestment transactions.

Read SEC document
December 02, 2024 Filed Dec 4, 2024 12:22 UTC Beam Therapeutics Inc. BEAM · Entity 4227 GrantStock Option (Right to Buy) · Derivative 39,086 $0.00 Strike: $28.30 $0.00
Disclosure

SEC source: 0000950170-24-133080 · ownership.xml · derivative · entry 1

Guindo Chirfi · CIK 0001722753 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,086

Underlying: Common Stock · 39,086 shares

Expires 2034-12-02

F1 · derivative.exercise_date: The option vests as to one-third of the shares subject to the option on the first anniversary of the date of grant and in equal monthly installments as to the remainder of the shares for two years thereafter, subject to the Reporting Person's continued service with the Company through each vesting date.

Read SEC document
August 05, 2024 Filed Aug 6, 2024 16:20 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionRestricted Stock Unit · Derivative 36,901 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-021690 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,903

Underlying: Common Stock · 36,901 shares

Expires 2025-08-03

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 Merck & Co., Inc. common stock.

F4 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 8/3/2023, 8/3/2024 and 8/3/2025 or, if such date is not a business day, the business day immediately thereafter.

Read SEC document
August 05, 2024 Filed Aug 6, 2024 16:20 UTC Merck & Co., Inc. MRK · Entity 2807 Tax withholdingCommon Stock 17,412 $115.20 $2,005,862.40
Disclosure

SEC source: 0001127602-24-021690 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,369.593

Read SEC document
August 05, 2024 Filed Aug 6, 2024 16:20 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionCommon Stock 36,901 $115.20 $4,250,995.20
Disclosure

SEC source: 0001127602-24-021690 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,781.593

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 · balance_after: Holdings include shares acquired in dividend reinvestment transactions.

Read SEC document
April 30, 2024 Filed May 2, 2024 20:22 UTC Merck & Co., Inc. MRK · Entity 2807 GrantStock Option (Right to Buy) · Derivative 29,297 $0.00 Strike: $129.22 $0.00
Disclosure

SEC source: 0001127602-24-013976 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,297

Underlying: Common Stock · 29,297 shares

Expires 2034-04-29

F3 · derivative.exercise_date: The option vests and becomes exercisable in equal installments on 4/30/2025, 4/30/2026 and 4/30/2027.

Read SEC document
August 03, 2023 Filed Aug 4, 2023 20:17 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionRestricted Stock Unit · Derivative 36,901 $0.00 $0.00
Disclosure

SEC source: 0001127602-23-022015 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,804

Underlying: Common Stock · 36,901 shares

Expires 2025-08-03

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 Merck & Co., Inc. common stock.

F4 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 8/3/2023, 8/3/2024 and 8/3/2025.

Read SEC document
August 03, 2023 Filed Aug 4, 2023 20:17 UTC Merck & Co., Inc. MRK · Entity 2807 Tax withholdingCommon Stock 17,989 $105.70 $1,901,437.30
Disclosure

SEC source: 0001127602-23-022015 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,352.684

Read SEC document
August 03, 2023 Filed Aug 4, 2023 20:17 UTC Merck & Co., Inc. MRK · Entity 2807 Exercise / conversionCommon Stock 36,901 $105.70 $3,900,435.70
Disclosure

SEC source: 0001127602-23-022015 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,341.684

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 · balance_after: Holdings include shares acquired in dividend reinvestment transactions.

Read SEC document
May 02, 2023 Filed May 4, 2023 21:43 UTC Merck & Co., Inc. MRK · Entity 2807 GrantStock Option (Right to Buy) · Derivative 34,578 $0.00 Strike: $117.89 $0.00
Disclosure

SEC source: 0001127602-23-014541 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,578

Underlying: Common Stock · 34,578 shares

Expires 2033-05-01

F3 · derivative.exercise_date: The option vests and becomes exercisable in equal installments on 5/2/2024, 5/2/2025 and 5/2/2026.

Read SEC document
August 03, 2022 Filed Aug 4, 2022 20:04 UTC Merck & Co., Inc. MRK · Entity 2807 GrantRestricted Stock Unit · Derivative 110,705 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-020472 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,705

Underlying: Common Stock · 110,705 shares

Expires 2025-08-03

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Merck & Co., Inc. common stock.

F2 · derivative.exercise_date: These restricted stock units vest and are distributed as shares of Merck & Co., Inc. common stock in three equal installments on 8/3/2023, 8/3/2024 and 8/3/2025.

Read SEC document
February 18, 2022 Filed Feb 23, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 OtherRestricted Stock Unit · Derivative 2,851 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-006266 · form4.xml · derivative · entry 4

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,668

Underlying: Common Stock · 2,851 shares

Expires 2024-02-18

F2 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price on the grant date]).

Read SEC document
February 18, 2022 Filed Feb 23, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionRestricted Stock Unit · Derivative 1,981 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-006266 · form4.xml · derivative · entry 3

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,519

Underlying: Common Stock · 1,981 shares

Expires 2024-02-18

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_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price on the grant date]).

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February 18, 2022 Filed Feb 23, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Tax withholdingCommon Stock 879 $209.79 $184,405.41
Disclosure

SEC source: 0001127602-22-006266 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,364

Read SEC document
February 18, 2022 Filed Feb 23, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionCommon Stock 1,981 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-006266 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,243

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
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 OtherRestricted Stock Unit · Derivative 2,480 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · derivative · entry 9

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,818

Underlying: Common Stock · 2,480 shares

Expires 2023-02-12

F3 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

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February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionRestricted Stock Unit · Derivative 1,336 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · derivative · entry 8

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,298

Underlying: Common Stock · 1,336 shares

Expires 2023-02-12

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.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 OtherRestricted Stock Unit · Derivative 2,395 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · derivative · entry 7

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,395 shares

Expires 2022-02-12

F3 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionRestricted Stock Unit · Derivative 1,261 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · derivative · entry 6

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,395

Underlying: Common Stock · 1,261 shares

Expires 2022-02-12

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.

F2 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

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February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Tax withholdingCommon Stock 1,189 $214.59 $255,147.51
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · nonDerivative · entry 5

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,262

F1 · kind: Represents shares withheld to satisfy the withholding tax liability due upon vesting of shares, as previously disclosed by reporting person on January 21, 2022.

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February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Tax withholdingCommon Stock 593 $214.59 $127,251.87
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · nonDerivative · entry 4

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,451

Read SEC document
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionCommon Stock 1,336 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · nonDerivative · entry 3

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,044

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
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Tax withholdingCommon Stock 560 $214.59 $120,170.40
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · nonDerivative · entry 2

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,708

Read SEC document
February 12, 2022 Filed Feb 15, 2022 21:15 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionCommon Stock 1,261 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004989 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,268

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
February 10, 2022 Filed Feb 14, 2022 21:26 UTC BIOGEN INC. BIIB · Entity 1675 GrantRestricted Stock Unit · Derivative 9,090 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-22-004801 · form4.xml · derivative · entry 2

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,090

Underlying: Common Stock · 9,090 shares

Expires 2025-02-10

F1 · derivative.exercise_date: The restricted stock units vest in three equal yearly installments beginning on the first anniversary of the grant date of February 10, 2022.

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January 19, 2022 Filed Jan 21, 2022 21:47 UTC BIOGEN INC. BIIB · Entity 1675 GrantCommon Stock 3,088 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-001862 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,007

F1 · shares: Represents shares earned upon satisfaction of certain performance conditions associated with performance stock units granted on February 12, 2019. The shares will vest on February 12, 2022.

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June 07, 2021 Filed Jun 9, 2021 23:04 UTC BIOGEN INC. BIIB · Entity 1675 SaleCommon Stock 3,087 $440.00 $1,358,280.00
Disclosure

SEC source: 0001127602-21-019552 · form4.xml · nonDerivative · entry 1

Guindo Chirfi · CIK 0001722753 · Head of Glob Prod Strat & Com

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,919

F1 · kind: Sale pursuant to a trading plan intended to comply with Rule 10b5-1 of the Securities Exchange Act of 1934.

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February 18, 2021 Filed Feb 22, 2021 21:11 UTC BIOGEN INC. BIIB · Entity 1675 GrantRestricted Stock Unit · Derivative 14,500 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-21-006982 · form4.xml · derivative · entry 1

Guindo Chirfi · CIK 0001722753 · EVP Glob. Prod Strat and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,500

Underlying: Common Stock · 14,500 shares

Expires 2024-02-18

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2021 Filed Feb 17, 2021 21:58 UTC BIOGEN INC. BIIB · Entity 1675 OtherRestricted Stock Unit · Derivative 2,194 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-21-006270 · form4.xml · derivative · entry 8

Guindo Chirfi · CIK 0001722753 · EVP Glob. Prod Strat and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,634

Underlying: Common Stock · 2,194 shares

Expires 2023-02-12

F2 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2021 Filed Feb 17, 2021 21:58 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionRestricted Stock Unit · Derivative 1,622 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-21-006270 · form4.xml · derivative · entry 7

Guindo Chirfi · CIK 0001722753 · EVP Glob. Prod Strat and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,828

Underlying: Common Stock · 1,622 shares

Expires 2023-02-12

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.

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2021 Filed Feb 17, 2021 21:58 UTC BIOGEN INC. BIIB · Entity 1675 OtherRestricted Stock Unit · Derivative 2,118 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-21-006270 · form4.xml · derivative · entry 6

Guindo Chirfi · CIK 0001722753 · EVP Glob. Prod Strat and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,656

Underlying: Common Stock · 2,118 shares

Expires 2022-02-12

F2 · kind: This represents the difference between the maximum possible number of shares that were eligible for vesting and the actual number that vested.

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including the grant date]).

Read SEC document
February 12, 2021 Filed Feb 17, 2021 21:58 UTC BIOGEN INC. BIIB · Entity 1675 Exercise / conversionRestricted Stock Unit · Derivative 1,534 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001127602-21-006270 · form4.xml · derivative · entry 5

Guindo Chirfi · CIK 0001722753 · EVP Glob. Prod Strat and Comm

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,774

Underlying: Common Stock · 1,534 shares

Expires 2022-02-12

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.

F1 · derivative.exercise_date: The number of RSUs reported represents the maximum possible number of shares that are eligible for vesting, which is 200% of the number of shares at target payout. One-third of these RSUs are eligible to vest on each of the first three anniversaries of the grant date. The actual number of shares that will vest on each vesting date will be determined by comparing the price of Biogen common stock on such vesting date to the price on the grant date (i.e., number of vested shares = number of shares at target payout times [the 30-day average closing stock price ending on the vesting date divided by the 30-day average closing stock price following and including 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.