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person · Reporting owner

Burrows Scott L

Disclosed activity across 2 companies

Tapewire entity
2651
SEC CIK
0001853327

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Arcutis Biotherapeutics, Inc.ARQT · Entity 4236Chief Financial OfficerMarch 06, 2023March 08, 2023
Spyre Therapeutics, Inc.SYRE · Entity 2649Chief Financial OfficerSeptember 30, 2026October 03, 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.

Arcutis Biotherapeutics, Inc.

Report date March 06, 2023 · Filed March 08, 2023

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect59,115 Reported balance After 2023-03-06 transaction · row 1
1 source row

Row 1 · 2023-03-06 · Sale · Disposed 291 · Balance 59,115

F1: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

F2: The transaction was executed in multiple trades in prices ranging from $15.120 to $15.440, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

Filing footnotes · ownership attribution and instrument terms

F1: The sale was effected pursuant to the Reporting Person's Rule 10b5-1 trading plan to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

F2: The transaction was executed in multiple trades in prices ranging from $15.120 to $15.440, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.

Spyre Therapeutics, Inc.

Report date September 30, 2026 · Filed October 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect97,262 Reported balance After 2026-09-30 transaction · row 1 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 1 · 2026-09-30 · Exercise / conversion · Acquired 17,500 · Balance 97,262

Common StockSEC Table I · non-derivativeDirect79,762 Reported balance After 2026-09-30 transaction · row 2 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 2 · 2026-09-30 · Sale · Disposed 17,500 · Balance 79,762

F1: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.00 to $90.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Common StockSEC Table I · non-derivativeDirect87,262 Reported balance After 2026-10-01 transaction · row 3 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 3 · 2026-10-01 · Exercise / conversion · Acquired 7,500 · Balance 87,262

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Common StockSEC Table I · non-derivativeDirect86,662 Reported balance After 2026-10-01 transaction · row 4 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 4 · 2026-10-01 · Sale · Disposed 600 · Balance 86,662

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.63 to $89.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Common StockSEC Table I · non-derivativeDirect85,162 Reported balance After 2026-10-01 transaction · row 5 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 5 · 2026-10-01 · Sale · Disposed 1,500 · Balance 85,162

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F4: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.96 to $90.95, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Common StockSEC Table I · non-derivativeDirect83,062 Reported balance After 2026-10-01 transaction · row 6 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 6 · 2026-10-01 · Sale · Disposed 2,100 · Balance 83,062

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $91.41 to $92.26, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Common StockSEC Table I · non-derivativeDirect79,991 Reported balance After 2026-10-01 transaction · row 7 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 7 · 2026-10-01 · Sale · Disposed 3,071 · Balance 79,991

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F6: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.54 to $93.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Common StockSEC Table I · non-derivativeDirect79,762 Reported balance After 2026-10-01 transaction · row 8 Account or security details depend on footnotes; rows are not merged.
1 source row

Row 8 · 2026-10-01 · Sale · Disposed 229 · Balance 79,762

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F7: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $93.54 to $93.59, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F8: Includes 33,738 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of the Issuer's common stock. The RSUs vest on September 1, 2027, subject to the Reporting Person's continued employment with the Issuer.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $14.50 · Expires 2033-09-01Direct319,857 Reported balance After 2026-09-30 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2026-09-30 · Exercise / conversion · Disposed 17,500 · Balance 319,857

F9: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $14.50 · Expires 2033-09-01Direct312,357 Reported balance After 2026-10-01 transaction · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · 2026-10-01 · Exercise / conversion · Disposed 7,500 · Balance 312,357

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F9: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.00 to $90.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

F2: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.63 to $89.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

F4: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.96 to $90.95, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F5: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $91.41 to $92.26, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F6: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.54 to $93.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F7: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $93.54 to $93.59, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F8: Includes 33,738 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of the Issuer's common stock. The RSUs vest on September 1, 2027, subject to the Reporting Person's continued employment with the Issuer.

F9: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

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
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · derivative · entry 10

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 312,357

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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.

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F9 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 229 $93.57 $21,427.53
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 8

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,762

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F7 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $93.54 to $93.59, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F8 · balance_after: Includes 33,738 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of the Issuer's common stock. The RSUs vest on September 1, 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 3,071 $92.95 $285,449.45
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 7

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,991

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F6 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.54 to $93.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 2,100 $91.92 $193,032.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 6

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,062

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $91.41 to $92.26, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 1,500 $90.27 $135,405.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 5

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 85,162

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F4 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.96 to $90.95, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 600 $89.07 $53,442.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 86,662

F2 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.63 to $89.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
October 01, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 87,262

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 executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
September 30, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 17,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · derivative · entry 9

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 319,857

Underlying: Common Stock · 17,500 shares

Expires 2033-09-01

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.

F9 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
September 30, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 17,500 $89.89 $1,573,075.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,762

F1 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $89.00 to $90.62, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 30, 2026 Filed Oct 3, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 17,500 $14.50 $253,750.00
Disclosure

SEC source: 0001636282-26-000117 · wk-form4_1790990964.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,262

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
September 02, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 18,232 $89.35 $1,629,029.20
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 6

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,762

F6 · shares: The transaction reported reflects the sale of shares of the Issuer's common stock in satisfaction of the Reporting Person's tax liability in connection with the settlement of 33,738 restricted stock units ("RSUs"). This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction and does not represent a discretionary trade made by the Reporting Person.

F7 · balance_after: Includes 33,738 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of the Issuer's common stock. The RSUs vest on September 1, 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · derivative · entry 7

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 337,357

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F8 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 200 $89.04 $17,808.00
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 5

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.69 to $89.38, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 2,016 $88.03 $177,468.48
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,194

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F4 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $87.64 to $88.59, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 4,384 $87.11 $381,890.24
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 100,210

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $86.60 to $87.57, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 900 $86.25 $77,625.00
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 104,594

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $85.60 to $86.53, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
September 01, 2026 Filed Sep 4, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001636282-26-000109 · wk-form4_1788485622.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
August 03, 2026 Filed Aug 6, 2026 01:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000100 · wk-form4_1785979922.xml · derivative · entry 5

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 344,857

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
August 03, 2026 Filed Aug 6, 2026 01:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 100 $97.10 $9,710.00
Disclosure

SEC source: 0001636282-26-000100 · wk-form4_1785979922.xml · nonDerivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F4 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
August 03, 2026 Filed Aug 6, 2026 01:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 2,300 $96.30 $221,490.00
Disclosure

SEC source: 0001636282-26-000100 · wk-form4_1785979922.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,094

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $95.85 to $96.82, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
August 03, 2026 Filed Aug 6, 2026 01:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 5,100 $95.21 $485,571.00
Disclosure

SEC source: 0001636282-26-000100 · wk-form4_1785979922.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 100,394

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $94.84 to $95.83, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
August 03, 2026 Filed Aug 6, 2026 01:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001636282-26-000100 · wk-form4_1785979922.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
July 01, 2026 Filed Jul 3, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000088 · wk-form4_1783042436.xml · derivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 352,357

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
July 01, 2026 Filed Jul 3, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 1,725 $88.37 $152,438.25
Disclosure

SEC source: 0001636282-26-000088 · wk-form4_1783042436.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.17 to $89.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F4 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
July 01, 2026 Filed Jul 3, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 5,775 $87.55 $505,601.25
Disclosure

SEC source: 0001636282-26-000088 · wk-form4_1783042436.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 99,719

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $87.13 to $88.05, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
July 01, 2026 Filed Jul 3, 2026 01:33 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001636282-26-000088 · wk-form4_1783042436.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
June 25, 2026 Filed Jun 27, 2026 01:31 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 15,000 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001853327-26-000008 · wk-form4_1782523902.xml · derivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 359,857

Underlying: Common Stock · 15,000 shares

Expires 2033-09-01

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.

F3 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
June 25, 2026 Filed Jun 27, 2026 01:31 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 10,000 $87.14 $871,400.00
Disclosure

SEC source: 0001853327-26-000008 · wk-form4_1782523902.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,994

F1 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $86.78 to $87.43, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

F2 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
June 25, 2026 Filed Jun 27, 2026 01:31 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 5,000 $87.12 $435,600.00
Disclosure

SEC source: 0001853327-26-000008 · wk-form4_1782523902.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,994

Read SEC document
June 25, 2026 Filed Jun 27, 2026 01:31 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 15,000 $14.50 $217,500.00
Disclosure

SEC source: 0001853327-26-000008 · wk-form4_1782523902.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,994

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
June 01, 2026 Filed Jun 4, 2026 01:30 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000076 · wk-form4_1780536638.xml · derivative · entry 5

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 374,857

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F6 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
June 01, 2026 Filed Jun 4, 2026 01:30 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 3,100 $72.06 $223,386.00
Disclosure

SEC source: 0001636282-26-000076 · wk-form4_1780536638.xml · nonDerivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F4 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $71.54 to $72.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F5 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
June 01, 2026 Filed Jun 4, 2026 01:30 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 2,599 $70.77 $183,931.23
Disclosure

SEC source: 0001636282-26-000076 · wk-form4_1780536638.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 101,094

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $70.38 to $71.34, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
June 01, 2026 Filed Jun 4, 2026 01:30 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 1,801 $69.75 $125,619.75
Disclosure

SEC source: 0001636282-26-000076 · wk-form4_1780536638.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 103,693

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $69.37 to $70.36, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
June 01, 2026 Filed Jun 4, 2026 01:30 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001636282-26-000076 · wk-form4_1780536638.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
May 01, 2026 Filed May 2, 2026 01:35 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 12,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001853327-26-000005 · wk-form4_1777685708.xml · derivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 382,357

Underlying: Common Stock · 12,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
May 01, 2026 Filed May 2, 2026 01:35 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 12,500 $71.37 $892,125.00
Disclosure

SEC source: 0001853327-26-000005 · wk-form4_1777685708.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
May 01, 2026 Filed May 2, 2026 01:35 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 12,500 $14.50 $181,250.00
Disclosure

SEC source: 0001853327-26-000005 · wk-form4_1777685708.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 110,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
April 01, 2026 Filed Apr 4, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 7,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001853327-26-000003 · wk-form4_1775266173.xml · derivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 394,857

Underlying: Common Stock · 7,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
April 01, 2026 Filed Apr 4, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 1,300 $49.98 $64,974.00
Disclosure

SEC source: 0001853327-26-000003 · wk-form4_1775266173.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $49.76 to $50.15, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F4 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
April 01, 2026 Filed Apr 4, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 6,200 $49.21 $305,102.00
Disclosure

SEC source: 0001853327-26-000003 · wk-form4_1775266173.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 99,294

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.69 to $49.63, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
April 01, 2026 Filed Apr 4, 2026 01:29 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 7,500 $14.50 $108,750.00
Disclosure

SEC source: 0001853327-26-000003 · wk-form4_1775266173.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
March 03, 2026 Filed Mar 4, 2026 02:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionStock Option (Right to Buy) · Derivative 2,500 $0.00 Strike: $14.50 $0.00
Disclosure

SEC source: 0001636282-26-000028 · wk-form4_1772591549.xml · derivative · entry 4

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 402,357

Underlying: Common Stock · 2,500 shares

Expires 2033-09-01

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 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F5 · derivative.exercise_date: This option represents a right to purchase 404,857 shares of the Issuer's common stock (which have been adjusted to reflect the Issuer's 1-for-25 reverse stock split on September 8, 2023), one quarter of which vested and became exercisable on September 1, 2024, with the remaining three quarters vesting in monthly installments over the following three years, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
March 03, 2026 Filed Mar 4, 2026 02:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 200 $41.66 $8,332.00
Disclosure

SEC source: 0001636282-26-000028 · wk-form4_1772591549.xml · nonDerivative · entry 3

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,994

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F3 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $41.55 to $41.76, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range.

F4 · balance_after: Includes 67,476 restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
March 03, 2026 Filed Mar 4, 2026 02:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 2,300 $40.56 $93,288.00
Disclosure

SEC source: 0001636282-26-000028 · wk-form4_1772591549.xml · nonDerivative · entry 2

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 98,194

F1 · kind: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

F2 · price: The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $40.17 to $41.11, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range.

Read SEC document
March 03, 2026 Filed Mar 4, 2026 02:32 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 Exercise / conversionCommon Stock 2,500 $14.50 $36,250.00
Disclosure

SEC source: 0001636282-26-000028 · wk-form4_1772591549.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 100,494

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: This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025.

Read SEC document
January 09, 2026 Filed Jan 14, 2026 02:27 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 GrantStock Option (Right to Buy) · Derivative 140,000 $0.00 Strike: $30.61 $0.00
Disclosure

SEC source: 0001636282-26-000004 · wk-form4_1768357662.xml · derivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,000

Underlying: Common Stock · 140,000 shares

Expires 2036-01-09

F1 · derivative.exercise_date: This option represents a right to purchase 140,000 shares of the Issuer's common stock, which will vest in equal monthly installments over four years, subject to the Reporting Person's continued employment with the Issuer at each vesting date.

Read SEC document
September 02, 2025 Filed Sep 3, 2025 22:53 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 18,428 $16.26 $299,639.28
Disclosure

SEC source: 0001636282-25-000095 · wk-form4_1756939995.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,994

F1 · shares: The transaction reported reflects the sale of shares of common stock, par value $0.0001 per share, of the Issuer ("Common Stock") in satisfaction of the Reporting Person's tax liability in connection with the settlement of 33,738 restricted stock units ("RSUs"). This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction and does not represent a discretionary trade made by the Reporting Person.

F2 · price: The price reported is a weighted average sale price of the Common Stock. These shares were sold in multiple transactions at prices ranging from $16.26 to $16.30, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: Includes 67,476 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in two equal installments on each of September 1, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

Read SEC document
January 15, 2025 Filed Jan 17, 2025 21:36 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 GrantStock Option (Right to Buy) · Derivative 95,500 $0.00 Strike: $21.66 $0.00
Disclosure

SEC source: 0001636282-25-000010 · wk-form4_1737149801.xml · derivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,500

Underlying: Common Stock · 95,500 shares

Expires 2035-01-15

F1 · derivative.exercise_date: This option represents a right to purchase 95,500 shares of the Issuer's common stock, which will vest in equal monthly installments over four years, subject to the Reporting Person's continued employment with the Issuer at each vesting date.

Read SEC document
September 03, 2024 Filed Sep 5, 2024 20:04 UTC Spyre Therapeutics, Inc. SYRE · Entity 2649 SaleCommon Stock 18,531 $28.17 $522,073.86
Disclosure

SEC source: 0001636282-24-000062 · wk-form4_1725566647.xml · nonDerivative · entry 1

Burrows Scott L · CIK 0001853327 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,422

F1 · shares: The transaction reported reflects the sale of shares of common stock, par value $0.0001 per share, of the Issuer ("Common Stock") in satisfaction of the Reporting Person's tax liability in connection with the settlement of 33,739 restricted stock units ("RSUs"). This sale was made to satisfy tax withholding obligations through a "sell to cover" transaction and does not represent a discretionary trade made by the Reporting Person.

F2 · price: The price reported is a weighted average sale price of the Common Stock. These shares were sold in multiple transactions at prices ranging from $27.72 to $28.18, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F3 · balance_after: Includes 101,214 RSUs. Each RSU represents a contingent right to receive, upon vesting, one share of Common Stock. The RSUs vest in three equal installments on each of September 1, 2025, 2026 and 2027, subject to the Reporting Person's continued employment with the Issuer.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.