Quarterly Put Option Transactions in Alector, Inc. (ALEC)
This table provides information about the institutional ownership of Alector, Inc. (ALEC). The information is specifically focused on institutions that hold put options of Alector, Inc..
Puts Purchased
Puts Sold
| Quarter | Buy | Sell | Net Activity | |||||
|---|---|---|---|---|---|---|---|---|
| New Holding | Increment | Total Shares Bought | Closed Position | Reduction | Total Shares Sold | |||
| Q3 2021 | 42,400 | 0 | 42,400 | 0 | 22,300 | 22,300 | 20,100 | |
| Q4 2021 | — | 49,400 | 0 | 49,400 | -49,400 | |||
| Q1 2022 | — | 2,200 | 0 | 2,200 | -2,200 | |||
| Q2 2022 | — | — | 0 | |||||
| Q3 2022 | 43,000 | 0 | 43,000 | — | 43,000 | |||
| Q4 2022 | 39,200 | 8,100 | 47,300 | — | 47,300 | |||
| Q1 2023 | 200 | 0 | 200 | 67,600 | 0 | 67,600 | -67,400 | |
| Q2 2023 | 300 | 0 | 300 | — | 300 | |||
| Q3 2023 | 7,300 | 31,400 | 38,700 | — | 38,700 | |||
| Q4 2023 | 24,000 | 5,400 | 29,400 | — | 29,400 | |||
| Q1 2024 | — | 15,900 | 0 | 15,900 | -15,900 | |||
| Q2 2024 | 4,600 | 10,100 | 14,700 | — | 14,700 | |||
| Q3 2024 | 76,000 | 0 | 76,000 | 100 | 0 | 100 | 75,900 | |