Spero Therapeutics Inc

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Spero Therapeutics Inc
CIK #0001701108
EDGAR Form CIK 2011 - 2026
10-K [0001701108]
10-Q [0001701108]
3 [0001701108]
4 [0001701108]
8-K [0001701108]
D [0001701108]
SC 13D [0001701108]
SC 13G [0001701108]
Form 13D/13G Filer Form 13D/13G Subject Filed
Anson Funds Management LP Spero Therapeutics Inc [2024-02-14]
BlackRock Inc Spero Therapeutics Inc [2022-07-08]
Pfizer Inc Spero Therapeutics Inc [2021-07-09]
BlackRock Inc Spero Therapeutics Inc [2021-02-02]
Atlas Venture Fund X LP Spero Therapeutics Inc [2018-03-14]
RA Capital Management LLC Spero Therapeutics Inc [2018-02-14]
Lundbeckfond Invest A/S Spero Therapeutics Inc [2018-02-14]
GV 2015 LP Spero Therapeutics Inc [2018-02-14]
Atlas Venture Associates IX LP Spero Therapeutics Inc [2018-02-13]
FMR LLC Spero Therapeutics Inc [2018-02-13]
GlaxoSmithKline PLC Spero Therapeutics Inc [2017-11-16]
Merck & Co Inc Spero Therapeutics Inc [2017-11-15]
Biotechnology Value Fund L P Spero Therapeutics Inc [2017-11-09]
Form 3/4/5 Subject 2011 - 2026
Jackson Scott Thomas
Spero Therapeutics Inc
Pottage John C Jr
Deshpande Milind
Tregoning Kathleen
Smith Cynthia
VINK Patrick VJJ
Thomas Frank E
Rajavelu Esther
Keutzer Timothy
View All
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Spero Therapeutics Inc SPRO
Common Stock
2026-02-06 Sell 37,101 $2.36 87,558
Spero Therapeutics Inc SPRO
Common Stock
2026-02-06 Sell 50,816 $2.36 119,926
Spero Therapeutics Inc SPRO
Common Stock
2026-02-06 Sell 18,652 $2.36 44,019
Spero Therapeutics Inc SPRO
Common Stock
2026-02-04 Sell 3,471 $2.24 7,775
Spero Therapeutics Inc SPRO
Common Stock
2026-02-03 Sell 24,224 $2.14 51,839
Spero Therapeutics Inc SPRO
Common Stock
2026-02-02 Sell 18,891 $2.20 41,560
Spero Therapeutics Inc SPRO
Common Stock
2026-02-02 Grant 68,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2026-02-02 Sell 18,442 $2.20 40,572
Spero Therapeutics Inc SPRO
Common Stock
2026-02-02 Grant 249,000 $0.00
Spero Therapeutics Inc SPRO
Stock Option (Right to Buy) · derivative
2026-02-02 Grant 137,000 $0.00
Spero Therapeutics Inc SPRO
Stock Option (Right to Buy) · derivative
2026-02-02 Grant 498,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-11-07 Sell 40,270 $2.37 95,440
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
Spero Therapeutics Inc SPRO
Common Stock
2025-06-12 Grant 20,000 $0.00
showing 20 of 200 most recent transactions
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