CHACKO DAVID M.

PrivateCIK: 1871801
Location

SAN DIEGO, CA

CHACKO DAVID M. (Chief Financial Officer) reported 1 transaction at ERASCA, INC.

Review the transaction codes below to understand the nature of each event.

InsiderCHACKO DAVID M.CIK 1871801
IssuerERASCA, INC.CIK 1761918
Officer· Chief Financial Officer
Since Jul 2021
+657.79K
Net shares
Net buyer
$21.3K
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
657.79K acquired
Non-Derivative Transactions1

Common Stock

Direct
J · J

Shares

+17.79K

Price / share

$1.19

Trade value

$21.25K

% of position

6.8%
12/15/2025
262.19K279.98K
Total

Net shares

+17.79K

Net value

$21.25K

Derivative Transactions1

Stock option (right to buy)

Direct
A · Award
Converts to

Common Stock

640K shares

Shares

+640K

Strike price

10.31

Held after

640K

Exercisable

1/29/2026
CHACKO DAVID M. — Insider Transaction (Form 4) Filed Jan 30, 2026 | Finecho