ROSENTHAL ARNON

PrivateCIK: 1757770
Location

SOUTH SAN FRANCISCO, CA

ROSENTHAL ARNON (Chief Executive Officer) received a stock award from ALECTOR, INC.

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

A · 1 award
InsiderROSENTHAL ARNONCIK 1757770
IssuerALECTOR, INC.CIK 1653087
DirectorOfficer· Chief Executive Officer
Since Feb 2019
+116.25K
Net shares
Net buyer
$0.00
Total acquired
0
Open market trades
0B · 0S
1
Total transactions
116.25K acquired
Non-Derivative Transactions1

Common Stock

Direct
A · Award

Shares

+116.25K

Price / share

Trade value

% of position

5.0%
3/13/2026
2.34M2.45M
Total

Net shares

+116.25K

Net value

$0.00

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)4

Common Stock

Indirect
Shares owned1.97M

Common Stock

Indirect
Shares owned652.50K

Common Stock

Indirect
Shares owned652.50K

Common Stock

Indirect
Shares owned652.50K
Total
3.93M indirect3.93M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
ROSENTHAL ARNON — Insider Transaction (Form 4) Filed Mar 13, 2026 | Finecho