RAJAVELU ESTHER

PrivateCIK: 1903716
Location

CAMBRIDGE, MA

RAJAVELU ESTHER (See Remarks) sold 8.0% of their position (87.92K shares) of SPERO THERAPEUTICS, INC. on the open market

Open‑market sale worth $207.5K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales
InsiderRAJAVELU ESTHERCIK 1903716
IssuerSPERO THERAPEUTICS, INC.CIK 1701108
Officer· See Remarks
Since Feb 2026
-87.92K
Net shares
Net seller
$207.5K
Total sold
2
Open market trades
0B · 2S
2
Total transactions
87.92K disposed
Non-Derivative Transactions2

Common Stock

Direct
S · Sale

Shares

37.10K

Price / share

$2.36

Trade value

$87.56K

% of position

3.4%
2/6/2026
1.10M1.06M

Common Stock

Direct
S · Sale

Shares

50.82K

Price / share

$2.36

Trade value

$119.93K

% of position

4.8%
2/6/2026
1.06M1.01M
Total

Net shares

87.92K

Net value

-$207.48K

Derivative Transactions0
No derivative transactions reported
RAJAVELU ESTHER — Insider Transaction (Form 4) Filed Feb 9, 2026 | Finecho