ROSENTHAL ARNON (Chief Executive Officer) reported 4 transactions at ALECTOR, INC.
Review the transaction codes below to understand the nature of each event.
Filed: 8/21/2026ACC: 0001193125-26-361376
DirectorOfficer· Chief Executive Officer
Since Feb 2019
0.00
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
4
Total transactions
1.05M acquired · 1.05M disposed
Non-Derivative Transactions4
Common Stock
Indirect
Shares
−1.05M
Price / share
—
Trade value
—
% of position
53.2%
8/19/2026
1.97M→922.88K
Common Stock
Indirect
Shares
+350K
Price / share
—
Trade value
—
% of position
53.6%
8/19/2026
652.50K→1M
Common Stock
Indirect
Shares
+350K
Price / share
—
Trade value
—
% of position
53.6%
8/19/2026
652.50K→1M
Common Stock
Indirect
Shares
+350K
Price / share
—
Trade value
—
% of position
53.6%
8/19/2026
652.50K→1M
Total
Net shares
+0.00
Net value
$0.00
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Indirect | 8/19/2026 | G · Gift | −1.05M | — | — | 53.2% | 1.97M | 922.88K |
| Common Stock Indirect | 8/19/2026 | G · Gift | +350K | — | — | 53.6% | 652.50K | 1M |
| Common Stock Indirect | 8/19/2026 | G · Gift | +350K | — | — | 53.6% | 652.50K | 1M |
| Common Stock Indirect | 8/19/2026 | G · Gift | +350K | — | — | 53.6% | 652.50K | 1M |
| Total | +0.00 | $0.00 | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1
Common Stock
DirectShares owned2.37M
Total
2.37M direct2.37M
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 2.37M | Direct |
| Total | 2.37M | 2.37M direct |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported