KEUTZER TIMOTHY

PrivateCIK: 1798155
Location

CAMBRIDGE, MA

KEUTZER TIMOTHY (Chief Development Officer) sold 0.2% of their position (1.70K shares) of SPERO THERAPEUTICS, INC. on the open market

Open‑market sale worth $3.3K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderKEUTZER TIMOTHYCIK 1798155
IssuerSPERO THERAPEUTICS, INC.CIK 1701108
Officer· Chief Development Officer
Since Jan 2020
-1.70K
Net shares
Net seller
$3.3K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
1.70K disposed
Non-Derivative Transactions1

Common Stock

Direct
S · Sale

Shares

1.70K

Price / share

$1.97

Trade value

$3.34K

% of position

0.2%
8/28/2025
741.44K739.74K
Total

Net shares

1.70K

Net value

-$3.34K

Derivative Transactions0
No derivative transactions reported
KEUTZER TIMOTHY — Insider Transaction (Form 4) Filed Sep 3, 2025 | Finecho