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Spero Therapeutics Inc (SPRO)  
$2.29 0.15 (7.01%) as of 4:30 Wed 2/4


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Total Insiders  : 22  
Total Direct Shares :
6,051,400
Total Indirect Shares :
17,974,130
 
% Held by Insiders:
22.25%
 
10 other people own 
 $1,562,460 Joseph Tamara L
 $1,217,398 Mahadevia Ankit
 $1,610,543 Keutzer Timothy
 $1,694,014 Hamed Kamal
 $1,804,788 Rajavelu Esther
 $2,519,018 Shukla Sath
 $3,977,462  
 
Filer's Name Relation Direct Date   Direct Shares Indirect Date Indirect Shares
   Rajavelu Esther 2026-02-02 1,100,008 2023-11-13 0
   Mahadevia Ankit 2025-08-28 703,294 2018-07-05 0
   Keutzer Timothy 2025-08-28 739,744 0
   Jackson Scott Thomas 2025-06-12 75,000 2022-09-15 0
   Deshpande Milind 2025-06-12 91,454 2022-09-15 0
   Thomas Frank E 2025-06-12 75,000 2022-09-15 0
   Tregoning Kathleen 2025-06-12 75,000 2022-09-15 0
   Pottage John C Jr 2025-06-12 75,000 2022-09-15 0
   Vink Patrick V.j.j. 2025-06-12 75,000 2022-09-15 0
   Smith Cynthia 2025-06-12 75,000 2022-09-15 0
   Shukla Sath 2025-02-05 1,736,883 2021-08-26 0
   Hamed Kamal 2024-02-02 788,117 2022-09-12 0
   Joseph Tamara L 2024-02-02 531,615 2021-08-26 0
   Larkin Cristina Chief Operating Officer 2022-02-01 63,581 2017-11-06 0
   Melnick David A. Chief Medical Officer 2022-02-01 62,081 0
   Sendek Joel Chief Financial Officer 2018-07-05 15,181 2017-11-06 10,181
   Glaxosmithkline Plc 10% Owner 2017-11-06 0 2022-11-07 9,190,606
   Breum Casper Director 2017-11-06 0 2017-11-06 1,091,774
   Goyal Vikas Director 2017-11-06 0 2017-11-06 1,854,006
   Formela Jean Francois Director 2017-11-06 0 2017-11-06 2,408,128
   Aquilo Capital, L.p. 10% Owner 0 2022-09-22 3,419,435
   Parr Thomas R Jr 0 0
22 Records found