MASTRANGELO JOE

PrivateCIK: 1833309
Location

PITTSBURGH, PA

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
-60.70K
Net shares
Net seller
$369.7K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
130.57K acquired · 191.27K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+130.57K

Price / share

Trade value

% of position

8.3%
6/26/2026
1.57M1.70M

Common Stock

Direct
F · Tax Withholding

Shares

60.70K

Price / share

$6.09

Trade value

$369.68K

% of position

3.6%
6/30/2026
1.70M1.64M
Total

Net shares

+69.87K

Net value

-$369.68K

Derivative Transactions1

Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

130.57K shares

Shares

130.57K

Strike price

Held after

261.14K

Exercisable

6/26/2026