New Leaf Venture Partners, L.L.C.

Holdings History for Alector, Inc. - Common Stock, $0.0001 par value (ALEC)

Symbol: ALEC on Nasdaq
Investment type: Equity / Common Stock, $0.0001 par value

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
30 Sep 2025	2.3%	0%	$1,005,124	339,569	0		$2.96	Q3 2025
30 Jun 2025	1.4%	0%	$475,397	339,569	0		$1.40	Q2 2025
31 Mar 2025	0.93%	0%	$417,670	339,569	0		$1.23	Q1 2025
31 Dec 2024	0.86%	0%	$641,785	339,569	0		$1.89	Q4 2024
30 Sep 2024	1.6%	0%	$1,582,392	339,569	0		$4.66	Q3 2024
30 Jun 2024	1.9%	0%	$1,541,643	339,569	0		$4.54	Q2 2024
31 Mar 2024	1.8%	0%	$2,044,205	339,569	0		$6.02	Q1 2024
31 Dec 2023	2.2%	0%	$2,709,761	339,569	0		$7.98	Q4 2023
30 Sep 2023	2.8%	0%	$2,200,407	339,569	0		$6.48	Q3 2023
30 Jun 2023	1.8%	0%	$2,040,810	339,569	0		$6.01	Q2 2023
31 Mar 2023	1.7%	0%	$2,101,932	339,569	0		$6.19	Q1 2023
31 Dec 2022	2.3%	0%	$3,134,222	339,569	0		$9.23	Q4 2022
30 Sep 2022	1.9%	0%	$3,212,000	339,569	0		$9.46	Q3 2022
30 Jun 2022	2.2%	0%	$3,450,000	339,569	0		$10.16	Q2 2022
31 Mar 2022	2.4%	0%	$4,839,000	339,569	0		$14.25	Q1 2022
31 Dec 2021	2.5%	0%	$7,012,000	339,569	0		$20.65	Q4 2021
30 Sep 2021	2.2%	0%	$7,749,000	339,569	0		$22.82	Q3 2021
30 Jun 2021	3.2%	0%	$7,073,000	339,569	0		$20.83	Q2 2021
31 Mar 2021	1.6%	0%	$6,839,000	339,569	0		$20.14	Q1 2021
31 Dec 2020	1.2%	0%	$5,138,000	339,569	0		$15.13	Q4 2020
30 Sep 2020	1.4%	0%	$3,577,000	339,569	0		$10.53	Q3 2020
30 Jun 2020	2.4%	-2.1%	$8,299,000	339,569	-300,000	-47%	$24.44	Q2 2020
31 Mar 2020	4.6%	0%	$15,433,000	639,569	0		$24.13	Q1 2020
31 Dec 2019	2.8%	0%	$11,020,000	639,569	0		$17.23	Q4 2019
30 Sep 2019	2.8%	-0.65%	$9,223,000	639,569	-148,200	-19%	$14.42	Q3 2019
30 Jun 2019	4%	0%	$14,968,000	787,769	0		$19.00	Q2 2019
31 Mar 2019	4%	+4%	$14,747,000	787,769	+787,769	NEW	$18.72	Q1 2019

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.