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person · Reporting owner

Stonehouse Jon P

Disclosed activity across 3 companies

Tapewire entity
471
SEC CIK
0001385496

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
BELLICUM PHARMACEUTICALS, INCBLCM · Entity 107976DirectorJanuary 03, 2023January 05, 2023
BIOCRYST PHARMACEUTICALS INCBCRX · Entity 315DirectorAugust 31, 2026September 02, 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.

BELLICUM PHARMACEUTICALS, INC

Report date January 03, 2023 · Filed January 05, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect204,086 Reported balance After 2023-01-03 transaction · row 1
1 source row

Row 1 · 2023-01-03 · Exercise / conversion · Acquired 121,452 · Balance 204,086

F1: The Reporting Person was granted Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of BLCM common stock. The RSUs vest in full on January 3, 2024, the one-year anniversary of the grant date.

Filing footnotes · ownership attribution and instrument terms

F1: The Reporting Person was granted Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of BLCM common stock. The RSUs vest in full on January 3, 2024, the one-year anniversary of the grant date.

BIOCRYST PHARMACEUTICALS INC

Report date August 31, 2026 · Filed September 02, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect1,340,419 Reported balance After 2026-08-31 transaction · row 1
1 source row

Row 1 · 2026-08-31 · Grant · Acquired 644 · Balance 1,340,419

F1: Shares of Common Stock issued to the reporting person in lieu of 50% of the quarterly cash Board Member retainer of $12,500.

Common StockSEC Table I · non-derivativeIndirectBy wife as co-trustee of the Caroline Stonehouse Irrevocable Trust40,000 Reported balance Holding disclosure · report date 2026-08-31 · row 2 Holding and transaction disclosures are not merged.
1 source row

Row 2 · Balance 40,000

Common StockSEC Table I · non-derivativeIndirectBy wife as co-trustee of the Samuel Stonehouse Irrevocable Trust40,000 Reported balance Holding disclosure · report date 2026-08-31 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 40,000

Filing footnotes · ownership attribution and instrument terms

F1: Shares of Common Stock issued to the reporting person in lieu of 50% of the quarterly cash Board Member retainer of $12,500.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Metsera, Inc.

Report date November 13, 2025 · Filed November 13, 2025

Section 16 reporting ended · disclosed 2025-11-13. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2025-11-13 transaction · row 1
1 source row

Row 1 · 2025-11-13 · Disposition to issuer · Disposed 2,688 · Balance 0

F1: Pursuant to the Agreement and Plan of Merger dated September 21, 2025, as amended on November 7, 2025 (the "Merger Agreement"), by and among Metsera, Inc. (the "Company"), Pfizer Inc., a Delaware corporation ("Parent"), and Mayfair Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (the "Merger Sub"), the Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a wholly owned subsidiary of the Parent (the "Merger"). At the Effective Time of the Merger (as defined in the Merger Agreement), each issued and outstanding share of common stock, par value $0.00001 per share of the Company (the "Common Stock") was converted automatically into the right to receive (i) cash in an amount equal to $65.60 per share without interest (the "Closing Amount"), net of all applicable withholding taxes, plus

F2: (Continued from footnote 1) (ii) one contractual contingent value right representing the right to receive contingent payments (a "CVR") in cash, without interest, upon the achievement of certain specified milestones, in accordance with the terms and conditions of the contingent value rights agreement entered into by the Parent and Equiniti Trust Company, LLC, dated November 13, 2025 (collectively, the "Merger Consideration").

F5: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

Restricted Stock UnitSEC Table II · derivative / convertible security · Conversion / exercise price $0.00Direct2,688 Reported balance After 2025-11-13 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2025-11-13 · Grant · Acquired 2,688 · Balance 2,688

F5: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $19.81 · Expires 2035-04-27Direct0 Reported balance After 2025-11-13 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2025-11-13 · Disposition to issuer · Disposed 47,730 · Balance 0

F3: Pursuant to the Merger Agreement, each outstanding and unexercised option immediately prior to the Effective Time, whether vested or unvested, was cancelled in exchange for the right to receive (x) an amount in cash equal to the product of (i) the excess, if any, of the Closing Amount minus the exercise price of such option, multiplied by (ii) the number of shares of Common Stock subject to such option immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) one CVR for each share of the Common Stock subject to such stock option immediately prior to the Effective Time. In the case of any unvested stock options, the cash payment and the CVRs are subject to the same vesting schedule terms as were applicable to the stock options,

F4: (Continued from footnote 3) except that all such payments will become vested upon the first anniversary of the closing of the Merger, subject to the holder's continued service with the Parent or its subsidiaries through the first anniversary of the Merger.

F6: This option provided for vesting in 36 substantially equal monthly installments from April 28, 2025.

Filing footnotes · ownership attribution and instrument terms

F1: Pursuant to the Agreement and Plan of Merger dated September 21, 2025, as amended on November 7, 2025 (the "Merger Agreement"), by and among Metsera, Inc. (the "Company"), Pfizer Inc., a Delaware corporation ("Parent"), and Mayfair Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (the "Merger Sub"), the Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a wholly owned subsidiary of the Parent (the "Merger"). At the Effective Time of the Merger (as defined in the Merger Agreement), each issued and outstanding share of common stock, par value $0.00001 per share of the Company (the "Common Stock") was converted automatically into the right to receive (i) cash in an amount equal to $65.60 per share without interest (the "Closing Amount"), net of all applicable withholding taxes, plus

F2: (Continued from footnote 1) (ii) one contractual contingent value right representing the right to receive contingent payments (a "CVR") in cash, without interest, upon the achievement of certain specified milestones, in accordance with the terms and conditions of the contingent value rights agreement entered into by the Parent and Equiniti Trust Company, LLC, dated November 13, 2025 (collectively, the "Merger Consideration").

F3: Pursuant to the Merger Agreement, each outstanding and unexercised option immediately prior to the Effective Time, whether vested or unvested, was cancelled in exchange for the right to receive (x) an amount in cash equal to the product of (i) the excess, if any, of the Closing Amount minus the exercise price of such option, multiplied by (ii) the number of shares of Common Stock subject to such option immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) one CVR for each share of the Common Stock subject to such stock option immediately prior to the Effective Time. In the case of any unvested stock options, the cash payment and the CVRs are subject to the same vesting schedule terms as were applicable to the stock options,

F4: (Continued from footnote 3) except that all such payments will become vested upon the first anniversary of the closing of the Merger, subject to the holder's continued service with the Parent or its subsidiaries through the first anniversary of the Merger.

F5: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

F6: This option provided for vesting in 36 substantially equal monthly installments from April 28, 2025.

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 31, 2026 Filed Sep 2, 2026 20:16 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 644 $9.70 $6,246.80
Disclosure

SEC source: 0000882796-26-000065 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,340,419

F1 · shares: Shares of Common Stock issued to the reporting person in lieu of 50% of the quarterly cash Board Member retainer of $12,500.

Read SEC document
June 11, 2026 Filed Jun 15, 2026 20:10 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantAutomatic Stock Option Grant · Derivative 33,540 $0.00 Strike: $8.50 $0.00
Disclosure

SEC source: 0000882796-26-000039 · form4.xml · derivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,540

Underlying: Common Stock · 33,540 shares

Expires 2036-06-11

F2 · security: Automatic non-employee director grant of stock options pursuant to the Director Compensation Policy.

Read SEC document
June 11, 2026 Filed Jun 15, 2026 20:10 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 15,294 $0.00 $0.00
Disclosure

SEC source: 0000882796-26-000039 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,339,775

F1 · shares: Automatic non-employee director grant of Restricted Stock Units pursuant to the BioCryst Pharmaceuticals, Inc. Non-Employee Director Compensation Policy, as amended (the "Director Compensation Policy"), which will vest on the first anniversary of the date of grant.

Read SEC document
May 29, 2026 Filed Jun 2, 2026 20:14 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 631 $8.91 $5,622.21
Disclosure

SEC source: 0000882796-26-000031 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,324,481

F1 · shares: Shares of Common Stock issued to the reporting person in lieu of 50% of the quarterly cash Board Member retainer of $11,250.

Read SEC document
March 02, 2026 Filed Mar 3, 2026 21:34 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionEmp. Stock Option (Right to Buy) · Derivative 305,995 $0.00 Strike: $3.22 $0.00
Disclosure

SEC source: 0000882796-26-000011 · form4.xml · derivative · entry 6

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 305,995 shares

Expires 2026-05-23

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 · shares: This transaction was made pursuant to a plan adopted by the reporting person on November 28, 2022, as modified on May 13, 2024 and further modified on May 29, 2024, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The options were originally granted to the reporting person on May 23, 2016 and would have expired on May 23, 2026. The transaction occurred automatically and does not represent a discretionary transaction by the reporting person.

Read SEC document
March 02, 2026 Filed Mar 3, 2026 21:34 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Disposition to issuerCommon Stock 305,995 $8.64 $2,643,796.80
Disclosure

SEC source: 0000882796-26-000011 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,323,850

F2 · shares: This transaction was made pursuant to a plan adopted by the reporting person on November 28, 2022, as modified on May 13, 2024 and further modified on May 29, 2024, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The options were originally granted to the reporting person on May 23, 2016 and would have expired on May 23, 2026. The transaction occurred automatically and does not represent a discretionary transaction by the reporting person.

F3 · price: The price in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $8.54 to $8.81. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

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March 02, 2026 Filed Mar 3, 2026 21:34 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionCommon Stock 305,995 $3.22 $985,303.90
Disclosure

SEC source: 0000882796-26-000011 · form4.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,629,845

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 · shares: This transaction was made pursuant to a plan adopted by the reporting person on November 28, 2022, as modified on May 13, 2024 and further modified on May 29, 2024, in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. The options were originally granted to the reporting person on May 23, 2016 and would have expired on May 23, 2026. The transaction occurred automatically and does not represent a discretionary transaction by the reporting person.

Read SEC document
February 27, 2026 Filed Mar 3, 2026 21:34 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 421 $8.75 $3,683.75
Disclosure

SEC source: 0000882796-26-000011 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,323,850

F1 · shares: Shares of Common Stock issued to the reporting person in lieu of 50% of the prorated quarterly cash Board Member retainer of $7,375.

Read SEC document
December 19, 2025 Filed Dec 23, 2025 21:13 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 61,793 $7.41 $457,886.13
Disclosure

SEC source: 0000882796-25-000045 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,323,429

F1 · shares: Represents shares withheld by the Issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted restricted stock units. This transaction does not represent a sale by the reporting person.

Read SEC document
December 18, 2025 Filed Dec 19, 2025 21:21 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001171843-25-008039 · ownership.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Samuel Stonehouse Irrevocable Trust

Disclosed balance after: 40,000

F1 · kind: On December 18, 2025, the reporting person gifted 10,000 shares held directly by him to each of the Caroline Stonehouse Irrevocable Trust and the Samuel Stonehouse Irrevocable Trust.

Read SEC document
December 18, 2025 Filed Dec 19, 2025 21:21 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001171843-25-008039 · ownership.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Caroline Stonehouse Irrevocable Trust

Disclosed balance after: 40,000

F1 · kind: On December 18, 2025, the reporting person gifted 10,000 shares held directly by him to each of the Caroline Stonehouse Irrevocable Trust and the Samuel Stonehouse Irrevocable Trust.

Read SEC document
December 18, 2025 Filed Dec 19, 2025 21:21 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 20,000 $0.00 $0.00
Disclosure

SEC source: 0001171843-25-008039 · ownership.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,385,222

F1 · kind: On December 18, 2025, the reporting person gifted 10,000 shares held directly by him to each of the Caroline Stonehouse Irrevocable Trust and the Samuel Stonehouse Irrevocable Trust.

Read SEC document
December 12, 2025 Filed Dec 16, 2025 21:09 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 27,368 $7.57 $207,175.76
Disclosure

SEC source: 0000882796-25-000031 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,405,222

F1 · shares: Represents shares withheld by the Issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted restricted stock units. This transaction does not represent a sale by the reporting person.

Read SEC document
November 13, 2025 Filed Nov 13, 2025 21:00 UTC Metsera, Inc. MTSR · Entity 73102 Disposition to issuerStock Option (right to buy) · Derivative 47,730 Not disclosed Strike: $19.81 Not disclosed
Disclosure

SEC source: 0001193125-25-280798 · ownership.xml · derivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 47,730 shares

Expires 2035-04-27

F3 · security: Pursuant to the Merger Agreement, each outstanding and unexercised option immediately prior to the Effective Time, whether vested or unvested, was cancelled in exchange for the right to receive (x) an amount in cash equal to the product of (i) the excess, if any, of the Closing Amount minus the exercise price of such option, multiplied by (ii) the number of shares of Common Stock subject to such option immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) one CVR for each share of the Common Stock subject to such stock option immediately prior to the Effective Time. In the case of any unvested stock options, the cash payment and the CVRs are subject to the same vesting schedule terms as were applicable to the stock options,

F4 · security: (Continued from footnote 3) except that all such payments will become vested upon the first anniversary of the closing of the Merger, subject to the holder's continued service with the Parent or its subsidiaries through the first anniversary of the Merger.

F3 · price: Pursuant to the Merger Agreement, each outstanding and unexercised option immediately prior to the Effective Time, whether vested or unvested, was cancelled in exchange for the right to receive (x) an amount in cash equal to the product of (i) the excess, if any, of the Closing Amount minus the exercise price of such option, multiplied by (ii) the number of shares of Common Stock subject to such option immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) one CVR for each share of the Common Stock subject to such stock option immediately prior to the Effective Time. In the case of any unvested stock options, the cash payment and the CVRs are subject to the same vesting schedule terms as were applicable to the stock options,

F4 · price: (Continued from footnote 3) except that all such payments will become vested upon the first anniversary of the closing of the Merger, subject to the holder's continued service with the Parent or its subsidiaries through the first anniversary of the Merger.

F6 · derivative.exercise_date: This option provided for vesting in 36 substantially equal monthly installments from April 28, 2025.

Read SEC document
November 13, 2025 Filed Nov 13, 2025 21:00 UTC Metsera, Inc. MTSR · Entity 73102 GrantRestricted Stock Unit · Derivative 2,688 Not disclosed Strike: $0.00 Not disclosed
Disclosure

SEC source: 0001193125-25-280798 · ownership.xml · derivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,688

Underlying: Common Stock · 2,688 shares

Expires not disclosed

F5 · price: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

F5 · derivative.exercise_date: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

F5 · derivative.expiration_date: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

Read SEC document
November 13, 2025 Filed Nov 13, 2025 21:00 UTC Metsera, Inc. MTSR · Entity 73102 Disposition to issuerCommon Stock 2,688 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-280798 · ownership.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Pursuant to the Agreement and Plan of Merger dated September 21, 2025, as amended on November 7, 2025 (the "Merger Agreement"), by and among Metsera, Inc. (the "Company"), Pfizer Inc., a Delaware corporation ("Parent"), and Mayfair Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (the "Merger Sub"), the Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a wholly owned subsidiary of the Parent (the "Merger"). At the Effective Time of the Merger (as defined in the Merger Agreement), each issued and outstanding share of common stock, par value $0.00001 per share of the Company (the "Common Stock") was converted automatically into the right to receive (i) cash in an amount equal to $65.60 per share without interest (the "Closing Amount"), net of all applicable withholding taxes, plus

F2 · kind: (Continued from footnote 1) (ii) one contractual contingent value right representing the right to receive contingent payments (a "CVR") in cash, without interest, upon the achievement of certain specified milestones, in accordance with the terms and conditions of the contingent value rights agreement entered into by the Parent and Equiniti Trust Company, LLC, dated November 13, 2025 (collectively, the "Merger Consideration").

F1 · price: Pursuant to the Agreement and Plan of Merger dated September 21, 2025, as amended on November 7, 2025 (the "Merger Agreement"), by and among Metsera, Inc. (the "Company"), Pfizer Inc., a Delaware corporation ("Parent"), and Mayfair Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of the Parent (the "Merger Sub"), the Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation and a wholly owned subsidiary of the Parent (the "Merger"). At the Effective Time of the Merger (as defined in the Merger Agreement), each issued and outstanding share of common stock, par value $0.00001 per share of the Company (the "Common Stock") was converted automatically into the right to receive (i) cash in an amount equal to $65.60 per share without interest (the "Closing Amount"), net of all applicable withholding taxes, plus

F2 · price: (Continued from footnote 1) (ii) one contractual contingent value right representing the right to receive contingent payments (a "CVR") in cash, without interest, upon the achievement of certain specified milestones, in accordance with the terms and conditions of the contingent value rights agreement entered into by the Parent and Equiniti Trust Company, LLC, dated November 13, 2025 (collectively, the "Merger Consideration").

F5 · price: On November 12, 2025, the Reporting Person was granted restricted stock units ("RSUs") under the Company's 2025 Incentive Award Plan in a transaction exempt under Rule 16b-3. Each RSU represents a contingent right to receive one share of Common Stock. The RSUs vest in 36 substantially equal monthly installments from November 12, 2025. Pursuant to the Merger Agreement, all RSUs were cancelled and converted into the right to receive (x) an amount of cash equal to the Closing Amount multiplied by the number of shares of Common Stock subject to such RSU immediately prior to the Effective Time, net of all applicable withholding taxes, and (y) a number of CVRs equal to the under of the shares of Common Stock underlying the RSU. The cash payment and the CVRs are not subject to vesting.

Read SEC document
April 28, 2025 Filed Apr 30, 2025 21:11 UTC Metsera, Inc. MTSR · Entity 73102 GrantStock Option (Right to Buy) · Derivative 47,730 $19.81 Strike: $19.81 $945,531.30
Disclosure

SEC source: 0000950170-25-061391 · ownership.xml · derivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,730

Underlying: Common Stock · 47,730 shares

Expires 2035-04-27

F1 · derivative.exercise_date: The options will vest and become exercisable in 36 substantially equal monthly installments after the date of grant, such that the option will be vested in full on the third anniversary of the date of grant, subject to the Reporting Person's continued service through each such vesting date.

Read SEC document
December 20, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · nonDerivative · entry 5

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Samuel Stonehouse Irrevocable Trust

Disclosed balance after: 30,000

F3 · kind: On December 20, 2024, the Reporting Person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 20, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · nonDerivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Caroline Stonehouse Irrevocable Trust

Disclosed balance after: 30,000

F3 · kind: On December 20, 2024, the Reporting Person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 20, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 20,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,429,109

F3 · kind: On December 20, 2024, the Reporting Person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 19, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantEmp. Stock Option (Right to Buy) · Derivative 750,250 $0.00 Strike: $7.39 $0.00
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · derivative · entry 6

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 750,250

Underlying: Common Stock · 750,250 shares

Expires 2034-12-19

F4 · derivative.exercise_date: Annual Employee Option Grant becomes exercisable at the rate of 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
December 19, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 14,010 $7.39 $103,533.90
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,449,109

F2 · shares: Represents shares withheld by the Issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted Restricted Stock Units. This transaction does not represent a sale by the Reporting Person.

Read SEC document
December 19, 2024 Filed Dec 23, 2024 21:01 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 362,100 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-029948 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,463,119

F1 · shares: Annual award of Restricted Stock Units which will vest 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
December 14, 2024 Filed Dec 17, 2024 21:16 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 27,525 $7.53 $207,263.25
Disclosure

SEC source: 0001127602-24-029592 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,101,019

F1 · shares: Represents shares withheld by the Issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted Restricted Stock Units. This transaction does not represent a sale by the Reporting Person.

Read SEC document
May 13, 2024 Filed May 15, 2024 11:08 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 PurchaseCommon Stock 30,000 $5.55 $166,500.00
Disclosure

SEC source: 0001127602-24-015365 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,127,770

F1 · price: The price in column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $5.34 to $5.68. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares purchased at each price within the range set forth in this footnote.

Read SEC document
January 03, 2024 Filed Jan 4, 2024 21:31 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-000832 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Caroline Stonehouse Irrevocable Trust

Disclosed balance after: 20,000

F1 · kind: On January 3, 2024, the reporting person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
January 03, 2024 Filed Jan 4, 2024 21:31 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-000832 · form4.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By wife as co-trustee of the Samuel Stonehouse Irrevocable Trust

Disclosed balance after: 20,000

F1 · kind: On January 3, 2024, the reporting person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
January 03, 2024 Filed Jan 4, 2024 21:31 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 20,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-24-000832 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,094,770

F1 · kind: On January 3, 2024, the reporting person gifted 10,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 19, 2023 Filed Dec 20, 2023 21:40 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 14,089 $6.05 $85,238.45
Disclosure

SEC source: 0001127602-23-030187 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,114,770

F1 · shares: Represents shares withheld by the issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted Restricted Stock Units. This transaction does not represent a sale by the reporting person.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:43 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantEmp. Stock Option (Right to Buy) · Derivative 595,000 $0.00 Strike: $6.43 $0.00
Disclosure

SEC source: 0001127602-23-029835 · form4.xml · derivative · entry 5

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 595,000

Underlying: Common Stock · 595,000 shares

Expires 2033-12-14

F3 · derivative.exercise_date: Annual Employee Option Grant becomes exercisable at the rate of 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:43 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Tax withholdingCommon Stock 13,592 $6.43 $87,396.56
Disclosure

SEC source: 0001127602-23-029835 · form4.xml · nonDerivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,128,859

F2 · shares: Represents shares withheld by the issuer to satisfy required tax withholding obligations in connection with the vesting of previously granted Restricted Stock Units. This transaction does not represent a sale by the reporting person.

Read SEC document
December 14, 2023 Filed Dec 18, 2023 21:43 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 127,500 $0.00 $0.00
Disclosure

SEC source: 0001127602-23-029835 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,142,451

F1 · shares: Annual award of Restricted Stock Units which will vest 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
June 13, 2023 Filed Jun 15, 2023 20:50 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 25,000 $0.00 $0.00
Disclosure

SEC source: 0001171843-23-003946 · ownership.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,014,794

F1 · kind: This transaction reflects a gift by the reporting person of shares of the issuer's common stock to a charitable donor advised fund.

Read SEC document
March 21, 2023 Filed Mar 23, 2023 20:40 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionEmp. Stock Option (Right to Buy) · Derivative 31,055 $0.00 Strike: $3.22 $0.00
Disclosure

SEC source: 0001127602-23-011193 · form4.xml · derivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 305,995

Underlying: Common Stock · 31,055 shares

Expires 2026-05-23

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 · kind: The reporting person engaged in a non-market, cash exercise and hold transaction to purchase shares of issuer common stock underlying stock options that were originally granted to the reporting person on May 23, 2016. No sales of the issuer's common stock have occurred as part of this transaction.

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March 21, 2023 Filed Mar 23, 2023 20:40 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionCommon Stock 31,055 $3.22 $99,997.10
Disclosure

SEC source: 0001127602-23-011193 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,039,794

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 · kind: The reporting person engaged in a non-market, cash exercise and hold transaction to purchase shares of issuer common stock underlying stock options that were originally granted to the reporting person on May 23, 2016. No sales of the issuer's common stock have occurred as part of this transaction.

Read SEC document
February 01, 2023 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionEmp. Stock Option (Right to Buy) · Derivative 100,000 $0.00 Strike: $5.45 $0.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · derivative · entry 6

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 100,000 shares

Expires 2023-08-08

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 · kind: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on August 8, 2013 and would have expired on August 8, 2023. The shares sold subsequent to the exercise of such options represent less than 2% of the reporting person's holdings of the issuer's securities.

F4 · derivative.exercise_date: The options vested upon the achievement of performance-based vesting criteria with respect to 25,000 shares on each of May 26, 2014, December 19, 2014, May 13, 2015 and December 3, 2020.

Read SEC document
February 01, 2023 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 SaleCommon Stock 100,000 $10.38 $1,038,000.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · nonDerivative · entry 5

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,008,739

F2 · kind: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on August 8, 2013 and would have expired on August 8, 2023. The shares sold subsequent to the exercise of such options represent less than 2% of the reporting person's holdings of the issuer's securities.

F3 · price: The price in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $10.22 to $10.65. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

Read SEC document
February 01, 2023 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionCommon Stock 100,000 $5.45 $545,000.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · nonDerivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,108,739

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 · kind: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on August 8, 2013 and would have expired on August 8, 2023. The shares sold subsequent to the exercise of such options represent less than 2% of the reporting person's holdings of the issuer's securities.

Read SEC document
January 03, 2023 Filed Jan 5, 2023 13:11 UTC BELLICUM PHARMACEUTICALS, INC BLCM · Entity 107976 Exercise / conversionCommon Stock 121,452 $0.00 $0.00
Disclosure

SEC source: 0001628280-23-000419 · wf-form4_167294230117045.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,086

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: The Reporting Person was granted Restricted Stock Units ("RSUs"). Each RSU represents a contingent right to receive one share of BLCM common stock. The RSUs vest in full on January 3, 2024, the one-year anniversary of the grant date.

Read SEC document
December 29, 2022 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 5,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By wife as co-trustee of the Caroline Stonehouse Irrevocable Trust

Disclosed balance after: 10,000

F1 · kind: On December 29, 2022, the reporting person gifted 5,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 29, 2022 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 5,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By wife as co-trustee of the Samuel Stonehouse Irrevocable Trust

Disclosed balance after: 10,000

F1 · kind: On December 29, 2022, the reporting person gifted 5,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 29, 2022 Filed Feb 2, 2023 22:20 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GiftCommon Stock 10,000 $0.00 $0.00
Disclosure

SEC source: 0001127602-23-003172 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,008,739

F1 · kind: On December 29, 2022, the reporting person gifted 5,000 shares held directly by him to each of the Samuel Stonehouse Irrevocable Trust and the Caroline Stonehouse Irrevocable Trust.

Read SEC document
December 19, 2022 Filed Dec 21, 2022 21:38 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantEmp. Stock Option (Right to Buy) · Derivative 595,000 $0.00 Strike: $10.63 $0.00
Disclosure

SEC source: 0001127602-22-028080 · form4.xml · derivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 595,000

Underlying: Common Stock · 595,000 shares

Expires 2032-12-19

F2 · derivative.exercise_date: Annual Employee Option Grant becomes exercisable at the rate of 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
December 19, 2022 Filed Dec 21, 2022 21:38 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 GrantCommon Stock 127,500 $0.00 $0.00
Disclosure

SEC source: 0001127602-22-028080 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,015,230

F1 · shares: Annual award of Restricted Stock Units which will vest 25% on each of the first, second, third and fourth anniversaries of the date of grant.

Read SEC document
December 15, 2022 Filed Dec 19, 2022 22:09 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 SaleCommon Stock 14,100 $10.90 $153,690.00
Disclosure

SEC source: 0001127602-22-027894 · form4.xml · nonDerivative · entry 1

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 887,730

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 11, 2022 to cover tax withholding obligations in connection with the vesting of 30,750 Restricted Stock Units. The sale occurred automatically to satisfy tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $10.50 to $11.39. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

Read SEC document
December 02, 2022 Filed Dec 2, 2022 23:33 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionEmp. Stock Option (Right to Buy) · Derivative 82,656 $0.00 Strike: $1.42 $0.00
Disclosure

SEC source: 0001127602-22-026832 · form4.xml · derivative · entry 8

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 82,656 shares

Expires 2023-01-01

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 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on January 1, 2013 and would have expired on January 1, 2023. The shares sold subsequent to the exercise of such options represent less than 10% of the reporting person's holdings of the issuer's securities.

Read SEC document
December 02, 2022 Filed Dec 2, 2022 23:33 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 SaleCommon Stock 82,656 $12.80 $1,057,996.80
Disclosure

SEC source: 0001127602-22-026832 · form4.xml · nonDerivative · entry 4

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 901,830

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on January 1, 2013 and would have expired on January 1, 2023. The shares sold subsequent to the exercise of such options represent less than 10% of the reporting person's holdings of the issuer's securities.

F3 · price: The price in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $12.69 to $12.92. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

Read SEC document
December 02, 2022 Filed Dec 2, 2022 23:33 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionCommon Stock 82,656 $1.42 $117,371.52
Disclosure

SEC source: 0001127602-22-026832 · form4.xml · nonDerivative · entry 3

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 984,486

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 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on January 1, 2013 and would have expired on January 1, 2023. The shares sold subsequent to the exercise of such options represent less than 10% of the reporting person's holdings of the issuer's securities.

Read SEC document
December 01, 2022 Filed Dec 2, 2022 23:33 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 Exercise / conversionEmp. Stock Option (Right to Buy) · Derivative 214,917 $0.00 Strike: $1.42 $0.00
Disclosure

SEC source: 0001127602-22-026832 · form4.xml · derivative · entry 7

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,656

Underlying: Common Stock · 214,917 shares

Expires 2023-01-01

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 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on January 1, 2013 and would have expired on January 1, 2023. The shares sold subsequent to the exercise of such options represent less than 10% of the reporting person's holdings of the issuer's securities.

Read SEC document
December 01, 2022 Filed Dec 2, 2022 23:33 UTC BIOCRYST PHARMACEUTICALS INC BCRX · Entity 315 SaleCommon Stock 214,917 $13.00 $2,793,921.00
Disclosure

SEC source: 0001127602-22-026832 · form4.xml · nonDerivative · entry 2

Stonehouse Jon P · CIK 0001385496 · Director · President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 901,830

F1 · security: This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 10, 2021. The options were originally granted to the reporting person on January 1, 2013 and would have expired on January 1, 2023. The shares sold subsequent to the exercise of such options represent less than 10% of the reporting person's holdings of the issuer's securities.

F2 · price: The price in column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $12.75 to $13.45. The reporting person will provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each price within the range set forth in this footnote.

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.