SYRE · NASDAQ · Biotechnology

Spyre Therapeutics (SYRE)

Develops extended-half-life antibody combinations for bowel, rheumatic, and dermatologic diseases.

$87.36
vs last close−4.61 (−5.01%)

13F · 13D/G · Form 4

Institutions≈ 107.30%94.61M shares
276 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail
Insiders0.81%713.1K shares
5 holders · as of Sep 3, 2026
Adds to108.11%

88.17M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.

These groups come from separate filings that can overlap, so they add to 108.11%; nothing is left for Other.

13F · 13D/G · Form 4

HolderStakeSharesDate
FMR LLCInstitution
14.77%13.03Mas of Jun 30, 2026
BlackRock, Inc.Institution
7.38%6.51Mas of Jun 30, 2026
Perceptive Advisors LLCInstitution
4.90%4.32Mas of Jun 30, 2026
RTW Investments, LPInstitution
4.82%4.25Mas of Jun 30, 2026
Paradigm Biocapital Advisors LPInstitution
4.36%3.84Mas of Jun 30, 2026
Vanguard Capital Management LLCInstitution
3.91%3.45Mas of Jun 30, 2026
State Street CorpInstitution
3.47%3.06Mas of Jun 30, 2026
VR Adviser, LLCInstitution
3.39%2.99Mas of Jun 30, 2026
Price T Rowe Associates Inc /MD/Institution
3.36%2.96Mas of Jun 30, 2026
Driehaus Capital Management LLCInstitution
3.17%2.80Mas of Jun 30, 2026
Geode Capital Management, LLCInstitution
2.91%2.56Mas of Jun 30, 2026
Vanguard Portfolio Management LLCInstitution
2.64%2.33Mas of Jun 30, 2026
Capital World InvestorsInstitution
2.63%2.32Mas of Jun 30, 2026
Jupiter Topco LLCInstitution
2.50%2.21Mas of Jun 30, 2026
TCG Crossover Management, LLCInstitution
2.16%1.90Mas of Jun 30, 2026
Tang Capital Management LLCInstitution
2.15%1.89Mas of Jun 30, 2026
Bank of America Corp /DE/Institution
2.02%1.78Mas of Jun 30, 2026
Adage Capital Partners GP, L.L.C.Institution
1.95%1.72Mas of Jun 30, 2026
Wellington Management Group LLPInstitution
1.79%1.58Mas of Jun 30, 2026
Goldman Sachs Group IncInstitution
1.68%1.48Mas of Jun 30, 2026
Franklin Resources IncInstitution
1.67%1.47Mas of Jun 30, 2026
Remedium Capital Partners, LLCInstitution
1.66%1.46Mas of Jun 30, 2026
Affinity Asset Advisors, LLCInstitution
1.45%1.28Mas of Jun 30, 2026
JPMorgan Chase & CoInstitution
1.24%1.09Mas of Jun 30, 2026
Holocene Advisors, LPInstitution
1.15%1.02Mas of Jun 30, 2026

13F, as of Jun 30, 2026

276 holders · 94.61M shares · 93 new positions · 198 increased · 56 reduced · 23 closed

HolderShares% outstandingChg q/qFiled
FMR LLC13.03M14.77%+1.25MAug 13, 2026
BlackRock, Inc.6.51M7.38%+985.4KAug 7, 2026
Perceptive Advisors LLC4.32M4.90%+536.3KAug 14, 2026
RTW Investments, LP4.25M4.82%+80.0KAug 14, 2026
Paradigm Biocapital Advisors LP3.84M4.36%+1.88MAug 14, 2026
Vanguard Capital Management LLC3.45M3.91%+391.3KAug 13, 2026
State Street Corp3.06M3.47%+450.4KAug 7, 2026
VR Adviser, LLC2.99M3.39%−700.0KAug 14, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Tomas Kiselakincl. Fairmount Healthcare Fund II L.P., Peter Evan Harwin +1 more9.99%9.67M13DJun 23, 2026
Peter E. Deutsch6.99%3.55M13GOct 23, 2024
BlackRock, Inc.6.60%3.96M13GJul 16, 2025
RTW Investments, LP6.20%3.62M13GFeb 14, 2025
Perceptive Advisors LLC5.00%4.32M13GApr 22, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
Sep 1, 2026
Cameron Turtledirector, officer: Chief Executive Officer
Sale · 4 lots15,000$87.29552,540
Sep 2, 2026
Scott L. Burrowsofficer: Chief Financial Officer
Sale18,232$89.3579,762
Sep 1, 2026
Scott L. Burrowsofficer: Chief Financial Officer
Sale · 4 lots7,500$87.3197,994
Sep 2, 2026
Heidy King-Jonesofficer: See Remarks
Sale400$90.002,845
Sep 1, 2026
Heidy King-Jonesofficer: See Remarks
Sale · 4 lots27,999$87.312,845
Aug 7, 2026
Jeffrey W. Albersdirector
Sale · 3 lots23,000$104.539,360
Aug 3, 2026
Cameron Turtledirector, officer: Chief Executive Officer
Sale · 5 lots15,000$95.51567,540
Aug 3, 2026
Scott L. Burrowsofficer: Chief Financial Officer
Sale · 3 lots7,500$95.5797,994
Jul 1, 2026
Cameron Turtledirector, officer: Chief Executive Officer
Sale · 3 lots15,000$87.69582,540
Jul 1, 2026
Sheldon Sloanofficer: Chief Medical Officer
Sale · 2 lots8,334$87.700

House and Senate disclosures

Not reported.