MASTRANGELO JOE

PrivateCIK: 1833309
Location

FRANKLIN TOWNSHIP, NJ

MASTRANGELO JOE (Chief Executive Officer) exercised options at EOS ENERGY ENTERPRISES, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise
InsiderMASTRANGELO JOECIK 1833309
DirectorOfficer· Chief Executive Officer
Since Nov 2020
-116.65K
Net shares
Net seller
$706.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
200K acquired · 316.65K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+200K

Price / share

$1.34

Trade value

$268K

% of position

13.4%
6/12/2026
1.49M1.69M

Common Stock

Direct
F · Tax Withholding

Shares

116.65K

Price / share

$6.06

Trade value

$706.87K

% of position

6.9%
6/12/2026
1.69M1.57M
Total

Net shares

+83.35K

Net value

-$438.87K

Derivative Transactions1

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

200K shares

Shares

200K

Strike price

1.34

Held after

0.00

Exercisable

6/12/2026
MASTRANGELO JOE — Insider Transaction (Form 4) Filed Jun 15, 2026 | Finecho