Spyre Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
Spyre Therapeutics Inc.
Former names
Aeglea BioTherapeutics, Inc.
Ownership
Public
Status
Active
SIC code
2834 — Pharmaceutical Preparations
Jurisdiction of incorporation
Delaware
Headquarters city
Waltham
Headquarters state / province
Massachusetts
Headquarters country
United States
Fiscal year end
December
Ticker symbol
SYRE
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001636282
EIN
46-4312787

Board of directors

Chief executives

Cameron Turtle · Chief Executive Officer
Dates unknown

Director election results

Annual meeting of May 29, 2025. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

10 of this board's directors also sit on 22 other boards.

Network of Spyre Therapeutics Inc.'s board connections Dianthus Therapeutics Inc. Dianthus Therapeutics... Oruka Therapeutics Inc. Oruka Therapeutics Inc... Crescent Biopharma Inc. Crescent Biopharma Inc... Damora Therapeutics Inc. Damora Therapeutics In... Gossamer Bio Inc. Gossamer Bio Inc. Jade Biosciences Inc. Jade Biosciences Inc. Korsana Biosciences Inc. Korsana Biosciences In... Viridian Therapeutics Inc. Viridian Therapeutics... Zenas BioPharma Inc. Zenas BioPharma Inc. Acrivon Therapeutics Inc. Acrivon Therapeutics I... BridgeBio Oncology Therapeutics Inc. BridgeBio Oncology The... Cogent Biosciences Inc. Cogent Biosciences Inc... Freenome Inc. Freenome Inc. Helix Acquisition Corp. III Helix Acquisition Corp... Kymera Therapeutics Inc. Kymera Therapeutics In... MBX Biosciences Inc. MBX Biosciences Inc. Alison Frances Lawton Alison Frances Lawto... Cameron Turtle Cameron Turtle Ivana Magovcevic-Liebisch Ivana Magovcevic-Lie... Jeffrey W. Albers Jeffrey W. Albers Laurie Stelzer Laurie Stelzer Mark C. McKenna Mark C. McKenna Peter Evan Harwin Peter Evan Harwin Russell J. Cox Russell J. Cox Sandra Milligan Sandra Milligan Tomas Kiselak Tomas Kiselak Spyre Therapeutics Inc.
Shared director Other board Same sector +6 more in the list below

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$436,706,843
79 sales by 7 insiders
Date Insider Transaction Shares Price Value
Sep 2, 2026 Burrows Scott L Officer (Chief Financial Officer) Open-market sale −18,232 $89.35 $1,629,029
Sep 2, 2026 King-Jones Heidy Officer (See Remarks) Option exercise +400 $14.50 $5,800
Sep 2, 2026 King-Jones Heidy Officer (See Remarks) Open-market sale −400 $90.00 $36,000
Sep 1, 2026 Burrows Scott L Officer (Chief Financial Officer) Option exercise +7,500 $14.50 $108,750
Sep 1, 2026 King-Jones Heidy Officer (See Remarks) Option exercise +27,999 $14.50 $405,986
Sep 1, 2026 Cameron Turtle Director, Officer (Chief Executive Officer) Open-market sale −2,500 $86.36 $215,900
Sep 1, 2026 Burrows Scott L Officer (Chief Financial Officer) Open-market sale −900 $86.25 $77,625
Sep 1, 2026 King-Jones Heidy Officer (See Remarks) Open-market sale −4,845 $86.40 $418,608
Sep 1, 2026 Cameron Turtle Director, Officer (Chief Executive Officer) Open-market sale −8,400 $87.15 $732,060
Sep 1, 2026 Burrows Scott L Officer (Chief Financial Officer) Open-market sale −4,384 $87.11 $381,890
Sep 1, 2026 King-Jones Heidy Officer (See Remarks) Open-market sale −16,548 $87.20 $1,442,986
Sep 1, 2026 Cameron Turtle Director, Officer (Chief Executive Officer) Open-market sale −3,700 $88.06 $325,822
Sep 1, 2026 Burrows Scott L Officer (Chief Financial Officer) Open-market sale −2,016 $88.03 $177,468
Sep 1, 2026 King-Jones Heidy Officer (See Remarks) Open-market sale −6,206 $88.17 $547,183
Sep 1, 2026 Cameron Turtle Director, Officer (Chief Executive Officer) Open-market sale −400 $89.07 $35,628

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