KABOT BRIAN

PrivateCIK: 1786113
Location

SAN JOSE, CA

KABOT BRIAN (Chief Executive Officer) purchased 5.9% of their position (250.00 shares) of MOMENTUS INC. on the open market

Open‑market purchase worth $1.4K — a moderate purchase. The strongest form of insider conviction signal.

P · 1 purchase
InsiderKABOT BRIANCIK 1786113
IssuerMOMENTUS INC.CIK 1781162
DirectorOfficer10% Owner· Chief Executive Officer
Since Nov 2019
+7.20K
Net shares
Net buyer
$1.4K
Total acquired
1
Open market trades
1B · 0S
3
Total transactions
7.20K acquired
Non-Derivative Transactions2

Class A Common Stock

Direct
M · Option Exercise

Shares

+913.00

Price / share

Trade value

% of position

27.7%
5/18/2026
3.29K4.21K

Class A Common Stock

Direct
P · Purchase

Shares

+250.00

Price / share

$5.62

Trade value

$1.40K

% of position

5.9%
5/19/2026
4.21K4.46K
Total

Net shares

+1.16K

Net value

$1.40K

Derivative Transactions1

Restricted Stock Units

Direct
A · Award
Converts to

Class A Common Stock

6.04K shares

Shares

+6.04K

Strike price

Held after

6.04K

Exercisable

5/18/2026
KABOT BRIAN — Insider Transaction (Form 4) Filed May 21, 2026 | Finecho