AR
Insider
Arnon Rosenthal
Chief Executive OfficerArnon Rosenthal (Chief Executive Officer) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 sales), most often in Alector, Inc. (ALEC). The largest single filing was $193K of ALEC (72,606 sh × $2.66, as filed), executed Sep 3.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
4
0 buys · 4 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$656K
shares × price, as filed
Last traded
Sep 3
Filed Sep 4
Median ADV $2.5M across their filed names
Open performance→Volume by month
Buys $0
Sells $916K
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
4 filings
Sector per market data · by filing · past 12 months
Most traded names
ALEC
Alector, Inc.
ALEC · 0 buys · 6 sells
6 filings
Recent filings
ALECSALE
Alector, Inc.
View filing →
$193K72,606 sh × $2.66
Exec Sep 3
Filed Sep 4 · 5:45 PM ET ALECSALE Alector, Inc. View filing → $172K
87,216 sh × $1.97
Exec Jun 2
Filed Jun 3 · 5:30 PM ET ALECSALE Alector, Inc. View filing → $174K
81,864 sh × $2.12
Exec Mar 2
Filed Mar 3 · 5:30 PM ET ALECSALE Alector, Inc. View filing → $117K
104,347 sh × $1.12
Exec Dec 3 2025
Filed Dec 3 2025 · 5:30 PM ET ALECSALE Alector, Inc. View filing → $129K
51,562 sh × $2.50
Exec Sep 2 2025
Filed Sep 4 2025 · 5:30 PM ET ALECSALE Alector, Inc. View filing → $131K
52,172 sh × $2.52
Exec Dec 2 2024
Filed Dec 3 2024 · 5:30 PM ET