OSTROWER SEAN WILLIAM

PrivateCIK: 2125266
Location

NEW YORK, NY

OSTROWER SEAN WILLIAM (Chief Financial Officer) received a stock award from AVALANCHE TREASURY CORP

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award
InsiderOSTROWER SEAN WILLIAMCIK 2125266
→
IssuerAVALANCHE TREASURY CORPCIK 2092446
Officer· Chief Financial Officer
Since Jun 2026
+283.86K
Net shares
Net buyer
$29.5K
Total sold
0
Open market trades
0B · 0S
2
Total transactions
299.40K acquired · 15.54K disposed
Non-Derivative Transactions2

Class A Common Stock

Direct
A · Award

Shares

+299.40K

Price / share

—

Trade value

—

% of position

New position
9/28/2026
0.00→299.40K

Class A Common Stock

Direct
F · Tax Withholding

Shares

−15.54K

Price / share

$1.90

Trade value

$29.53K

% of position

5.2%
9/30/2026
299.40K→283.86K
Total

Net shares

+283.86K

Net value

-$29.53K

Derivative Transactions0
No derivative transactions reported
OSTROWER SEAN WILLIAM — Insider Transaction (Form 4) Filed Sep 30, 2026 | Finecho