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CITADEL ADVISORS LLC
> ALEC
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | Alector, Inc. | ALEC | 221,151 | -269,687 | 1,329,118,000 | -3,201,316,000 | $6,010.00 |
| 12/31/2022 | Alector, Inc. | ALEC | 490,838 | 405,014 | 4,530,434,000 | 4,529,622,000 | $9,230.00 |
| 09/30/2022 | Alector, Inc. | ALEC | 85,824 | -36,053 | 812,000 | -426,000 | $9.46 |
| 06/30/2022 | Alector, Inc. | ALEC | 121,877 | 16,934 | 1,238,000 | -257,000 | $10.16 |
| 03/31/2022 | Alector, Inc. | ALEC | 104,943 | 74,002 | 1,495,000 | 856,000 | $14.25 |
| 12/31/2021 | Alector, Inc. | ALEC | 30,941 | -143,229 | 639,000 | -3,336,000 | $20.65 |
| 09/30/2021 | Alector, Inc. | ALEC | 174,170 | -120,727 | 3,975,000 | -2,168,000 | $22.82 |
| 06/30/2021 | Alector, Inc. | ALEC | 294,897 | 253,608 | 6,143,000 | 5,311,000 | $20.83 |
| 03/31/2021 | Alector, Inc. | ALEC | 41,289 | -163,372 | 832,000 | -2,265,000 | $20.15 |
| 12/31/2020 | Alector, Inc. | ALEC | 204,661 | -89,003 | 3,097,000 | 3,000 | $15.13 |
| 09/30/2020 | Alector, Inc. | ALEC | 293,664 | 245,376 | 3,094,000 | 1,914,000 | $10.54 |
| 06/30/2020 | Alector, Inc. | ALEC | 48,288 | 6,515 | 1,180,000 | 172,000 | $24.44 |
| 03/31/2020 | Alector, Inc. | ALEC | 41,773 | 41,773 | 1,008,000 | 1,008,000 | $24.13 |
| 09/30/2019 | Alector, Inc. | ALEC | 0 | -41,980 | 0 | -798,000 | |
| 06/30/2019 | Alector, Inc. | ALEC | 41,980 | 41,980 | 798,000 | 798,000 | $19.01 |
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