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Stocks · Health care · Pharmaceutical Preparations

Spero Therapeutics, Inc.

SPRO Clue Score50
United States Fiscal year ends December CIK 0001701108 Results filed 12 Aug 2026
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What the insiders did Net selling

By person

12 insiders · 9 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Esther Rajavelu
See Remarks
—
$406.85K (5)
−$406.85K
986,851
1.69%
$2.48M
+135.0%
Timothy Keutzer
Chief Operating Officer
—
$145.19K (4)
−$145.19K
742,506
1.28%
$1.86M
+39.6%
Sath Shukla
CEO & President
—
—
—
1,736,883
2.98%
$4.36M
+52.3%
Ankit Mahadevia
Director
—
—
—
703,294
1.21%
$1.77M
−7.3%
Debra Zack
Chief Medical Officer
—
—
—
162,311
0.2787%
$407.40K
—
Milind Deshpande
Director
—
—
—
101,454
0.1742%
$254.65K
+42.0%
Kathleen Tregoning
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%
Cynthia Smith
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%
Frank E Thomas
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%
Scott Thomas Jackson
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%
Patrick V.j.j. Vink
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%
John C Pottage Jr
Director
—
—
—
85,000
0.1460%
$213.35K
+54.5%