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Spero Therapeutics Inc

Spero Therapeutics Inc (SPRO)

2.605
0.065
( 2.56% )
Updated: 09:18:04

Spero Therapeutics Inc (SPRO) Ownership Distribution

Institutions
19.79%
Insiders
3.78%
Public and Others
76.43%

Spero Therapeutics Inc (SPRO) Ownership

Holder Type Held (Actual) % of Outstanding Market Value Date Reported
GSK Equity Investments, LimitedInstitution9,190,60615.87%US$ 23.34M2026-03-31
Pfizer Venture Investments LLCInstitution2,362,3484.08%US$ 6.00M2026-03-31
Vanguard Capital Management, LLCInstitution1,799,8803.11%US$ 4.57M2026-03-31
Renaissance Technologies LLCInstitution1,189,2352.05%US$ 3.02M2026-03-31
Ms. Esther RajaveluInsider986,8511.70%US$ 2.51M2026-05-04
GV Management Company, LLCInstitution889,9791.54%US$ 2.26M2026-03-31
Two Sigma Investments, LPInstitution885,6311.53%US$ 2.25M2026-03-31
Geode Capital Management, LLCInstitution519,9220.90%US$ 1.32M2026-03-31
BlackRock, Inc.Institution433,2020.75%US$ 1.10M2026-03-31
Anson GroupInstitution421,9560.73%US$ 1.07M2026-03-31
Dr. Ankit MahadeviaInsider383,7950.66%US$ 974.84k2025-08-28
Citadel Advisors LLCInstitution376,4580.65%US$ 956.20k2026-03-31
Susquehanna International Group, LLPInstitution333,1150.58%US$ 846.11k2026-03-31
Mr. Timothy KeutzerInsider288,5470.50%US$ 732.91k2026-02-06
GSA Capital Partners LLPInstitution278,3040.48%US$ 706.89k2026-03-31
Vanguard Fiduciary Trust CompanyInstitution264,1150.46%US$ 670.85k2026-03-31
State Street Global Advisors, Inc.Institution214,7510.37%US$ 545.47k2026-03-31
Ionic Capital Management LLCInstitution195,9390.34%US$ 497.69k2026-03-31
Squarepoint OPS LLCInstitution194,3010.34%US$ 493.52k2026-03-31
Marshall Wace LLPInstitution157,0720.27%US$ 398.96k2026-03-31
Mr. Satyavrat ShuklaInsider127,8560.22%US$ 324.75k2025-04-01
Coutts Diversifying Alternatives Multi-Manager FundInstitution125,7620.22%US$ 319.44k2025-12-31
Northern Trust Global InvestmentsInstitution120,9840.21%US$ 307.30k2026-03-31
Bridgeway Capital Management, LLCInstitution114,8000.20%US$ 291.59k2026-03-31
Jane Street Group, LLCInstitution106,3450.18%US$ 270.12k2026-03-31
Dr. Milind DeshpandeInsider71,4540.12%US$ 181.49k2025-06-12
Shay Capital LLCInstitution70,3540.12%US$ 178.70k2026-03-31
Point72 Asset Management, L.P.Institution59,6680.10%US$ 151.56k2026-03-31
Mr. Scott JacksonInsider55,0000.09%US$ 139.70k2025-06-12
Dr. John PottageInsider55,0000.09%US$ 139.70k2025-06-12
Dr. Patrick VinkInsider55,0000.09%US$ 139.70k2025-06-12
Ms. Kathleen TregoningInsider55,0000.09%US$ 139.70k2025-06-12
Ms. Cynthia SmithInsider55,0000.09%US$ 139.70k2025-06-12
Mr. Frank ThomasInsider55,0000.09%US$ 139.70k2025-06-12
Invesco Capital Management LLCInstitution45,3740.08%US$ 115.25k2026-03-31
Quadrature Capital LimitedInstitution40,1280.07%US$ 101.93k2026-03-31
OMERS Administration CorporationInstitution39,4000.07%US$ 100.08k2026-03-31
Verdad Advisers, L.P.Institution33,4550.06%US$ 84.98k2026-03-31