Insiders Trades
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (21 ops.)
Latest filing published 15 Oct 2026 for Alector, Inc.. Read the official filing
Filing timeline
BuySaleArnon Rosenthal
Insider track record
Disclosed buys
0
Disclosed sells
21
Signal history
Arnon Rosenthal: trading record in brief
Arnon Rosenthal, listed as chief executive, appears in our data through filings on Alector, Inc. shares, published by SEC (Form 4). Between 7 May 2021 and 14 October 2026, the trades on record add up to 34 filings.
Sales make up the whole of the open-market record (21 sales, €9.2M). The rest of the record consists of 9 share grants. 2026 to date brings no purchases and 3 sales.
On 15 October 2026 came the latest disclosure, a share grant in Alector, Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. For comparison, the SEC allows two business days to file a Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
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Declarations34 total
217,500 shares0Common StockSEC:0001193125-26-422869:0
72,606 shares@ US$2.66470.087% mcap1.8% of flowCommon StockSEC:0001193125-26-383857:0
1,050,000 shares0Common StockSEC:0001193125-26-361376:0
350,000 shares0Common StockSEC:0001193125-26-361376:1
350,000 shares0Common StockSEC:0001193125-26-361376:2
350,000 shares0Common StockSEC:0001193125-26-361376:3
87,216 shares@ US$1.97430.062% mcap1.6% of flowCommon StockSEC:0001193125-26-255816:0
116,246 shares0Common StockSEC:0001193125-26-106250:0
81,864 shares@ US$2.12331.6% of flowCommon StockSEC:0001757770-26-000002:0
104,347 shares@ US$1.11961.1% of flowCommon StockSEC:0001757770-25-000007:0
174,167 shares0Common StockSEC:0001757770-25-000006:0
51,562 shares@ US$2.49681.2% of flowCommon StockSEC:0001415889-25-023670:0
137,125 shares0Common StockSEC:0000950170-25-092312:0
52,087 shares@ US$1.33840.7% of flowCommon StockSEC:0001415889-25-015583:0
40,330 shares@ US$1.46730.6% of flowCommon StockSEC:0000950170-25-033530:0
52,172 shares@ US$2.51941.4% of flowCommon StockSEC:0000950170-24-132912:0
610,500 shares0Common StockSEC:0000950170-24-111421:0
26,499 shares@ US$4.88271.3% of flowCommon StockSEC:0000950170-24-103408:0
25,135 shares@ US$4.79881.2% of flowCommon StockSEC:0000950170-24-068941:0
18,837 shares@ US$6.92181.3% of flowCommon StockSEC:0000950170-24-026424:0
23,831 shares@ US$5.561.3% of flowCommon StockSEC:0000950170-23-068619:0
397,600 shares0Common StockSEC:0000950170-23-051702:0
5,647 shares@ US$5.19450.3% of flowCommon StockSEC:0000950170-23-046836:0
5,255 shares@ US$6.90370.4% of flowCommon StockSEC:0000950170-23-026473:0
42,990 shares0Common StockSEC:0001209191-23-020421:0
25 of 34 declarations
