Alector, Inc. - Common Stock, par value $0.0001 per share (ALEC)

Historical Holders from Q1 2019 to Q3 2025

Symbol
ALEC on Nasdaq
Type / Class
Equity / Common Stock, par value $0.0001 per share
Shares outstanding
109M
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
74.8M
Holdings value
$221M
% of all portfolios
0%
Grand Portfolio weight change
+0%
Number of holders
146
Number of buys
69
Number of sells
-51
Average Value change %
0%
Average buys %
+0%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Alector, Inc. - Common Stock, par value $0.0001 per share (ALEC)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
TCG Crossover GP II, LLC 9.2% $29.6M 10M Chen Yu 22 Oct 2025
Polaris Venture Partners VI, L.P. 6.5% $21M 7.1M Terrance G. McGuire 30 Sep 2025
RTW INVESTMENTS, LP 6.9% $20.7M 6.99M RTW Investments, LP 30 Sep 2025
BlackRock, Inc. 5.1% -18.3% $15.4M -$2.71M 5.2M -15% BlackRock, Inc. 30 Sep 2025
FMR LLC 3.6% $10.7M 3.6M FMR LLC 31 Oct 2025

Institutional Holders of Alector, Inc. - Common Stock, par value $0.0001 per share (ALEC)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 74.8M $221M +$17.8M $2.96 146
2025 Q2 70.5M $98.7M -$652K $1.40 134
2025 Q1 72.5M $89.2M -$1.7M $1.23 139
2024 Q4 73.4M $139M -$36.9M $1.89 147
2024 Q3 72.5M $338M -$1.02M $4.66 158
2024 Q2 72.7M $330M -$13.9M $4.54 157
2024 Q1 74.2M $447M +$61.3M $6.02 156
2023 Q4 63.9M $510M +$16.6M $7.98 144
2023 Q3 62.1M $403M +$20.7M $6.48 145
2023 Q2 59M $354M +$4.37M $6.01 142
2023 Q1 58.3M $361M +$17.9M $6.19 144
2022 Q4 54.8M $506M -$5.43M $9.23 154
2022 Q3 54.6M $516M +$5.67M $9.46 162
2022 Q2 53.8M $547M -$17.4M $10.16 148
2022 Q1 55.4M $790M -$5.07M $14.25 159
2021 Q4 54.7M $1.13B +$66.1M $20.65 160
2021 Q3 52.2M $1.19B +$72.8M $22.82 144
2021 Q2 49.2M $1.02B +$63.4M $20.83 133
2021 Q1 46.2M $929M +$13.1M $20.14 123
2020 Q4 46.3M $700M -$61.4M $15.13 130
2020 Q3 49.5M $522M -$50.1M $10.54 136
2020 Q2 50.1M $1.22B +$53.7M $24.44 133
2020 Q1 47.9M $1.16B +$264M $24.13 102
2019 Q4 37.1M $639M +$44.4M $17.23 81
2019 Q3 34.7M $500M +$80.6M $14.42 74
2019 Q2 29.1M $551M +$7.38M $19.00 63
2019 Q1 27.5M $515M +$515M $18.72 53