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$SPRO All transactions

Spero Therapeutics, Inc.

A

$ Value

$0

Shares

185,000

Price

$0

Filed

May 6

Insider

Name

Rajavelu Esther

Title

See Remarks

CIK

0001903716

Roles

Officer

Transaction Details

Transaction Date

2025-05-02

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

909,720

Footnotes

Consists of restricted stock units ("RSUs"). Each RSU represents the right to receive one share of common stock upon vesting. The RSUs vest in four equal annual installments beginning on May 2, 2026, subject to the Reporting Person's continued service through the applicable vesting date.

Filing Info

Accession No.

0000950170-25-064821

Form Type

4

Issuer CIK

0001701108

Rajavelu Esther's History

Date Ticker Type Value
2026-02-06 SPRO $88K
2026-02-06 SPRO $120K
2026-02-02 SPRO A $0
2026-02-02 SPRO $41K
2026-02-02 SPRO A $0
2025-11-07 SPRO $95K
2025-05-02 SPRO A $0

Other Insiders at SPRO (90d)

Insider Bought Sold Last
Keutzer Timothy
Chief Operating Officer
$145K 2026-02-06
Rajavelu Esther
See Remarks
$248K 2026-02-06