Latest Institutional Purchases of Alector, Inc. (ALEC)
This list provides information on the latest institutional transactions involving Alector, Inc. (ALEC) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 14, 2025
Q3 2025
|
Rtw Investments, LP
New York, NY |
BUY
|
- |
6.99MNew |
$9.93M - $22.2M
|
6.99M
$8.67M
|
|
|
Nov 14, 2025
Q3 2025
|
683 Capital Management, LLC
New York, NY |
BUY
|
- |
1MNew |
$1.42M - $3.18M
|
1M
$1.24M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
744K+ 181.16% |
$1.06M - $2.37M
|
1.16M
$1.43M
|
|
|
Nov 12, 2025
Q3 2025
|
Barclays PLC
London, X0 |
BUY
|
- |
704K+ 414.37% |
$999K - $2.24M
|
873K
$1.08M
|
|
|
Nov 14, 2025
Q3 2025
|
Logos Global Management LP
San Francisco, CA |
BUY
|
CALL |
500KNew |
$710K - $1.59M
|
500K
$620K
|
|
|
Nov 14, 2025
Q3 2025
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
- |
444K+ 83.12% |
$630K - $1.41M
|
978K
$1.21M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
326K+ 1362.22% |
$463K - $1.04M
|
350K
$434K
|
|
|
Nov 13, 2025
Q3 2025
|
Medici Capital LLC
Newport Beach, CA |
BUY
|
- |
315K+ 188.28% |
$447K - $1M
|
482K
$598K
|
|
|
Nov 14, 2025
Q3 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
260K+ 1838.75% |
$369K - $827K
|
274K
$340K
|
|
|
Nov 14, 2025
Q3 2025
|
Goldman Sachs Group Inc
New York, NY |
BUY
|
- |
235K+ 62.87% |
$334K - $749K
|
610K
$756K
|
|
|
Nov 13, 2025
Q3 2025
|
Panagora Asset Management Inc
Boston, MA |
BUY
|
- |
225K+ 43.47% |
$319K - $714K
|
741K
$919K
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
BUY
|
- |
203K+ 9.33% |
$288K - $644K
|
2.37M
$2.94M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
189K+ 450.21% |
$268K - $600K
|
230K
$286K
|
|
|
Nov 13, 2025
Q3 2025
|
Marshall Wace, LLP
London, X0 |
BUY
|
- |
152KNew |
$215K - $482K
|
152K
$188K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
146KNew |
$207K - $465K
|
146K
$181K
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
140K+ 37.24% |
$199K - $446K
|
517K
$642K
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
105K+ 51.45% |
$149K - $333K
|
309K
$383K
|
|
|
Nov 12, 2025
Q3 2025
|
Simplex Trading, LLC
|
BUY
|
- |
101KNew |
$143K - $321K
|
101K
$125K
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
85K+ 38.28% |
$121K - $270K
|
307K
$381K
|
|
|
Nov 13, 2025
Q3 2025
|
Deutsche Bank Ag\
Frankfurt Am Main, 2M |
BUY
|
- |
78.5K+ 7.93% |
$111K - $250K
|
1.07M
$1.32M
|
|
|
Nov 14, 2025
Q3 2025
|
Cubist Systematic Strategies, LLC
Stamford, CT |
BUY
|
- |
78.2K+ 358.62% |
$111K - $249K
|
100K
$124K
|
|
|
Nov 14, 2025
Q3 2025
|
Artia Global Partners LP
Miami, FL |
BUY
|
- |
71KNew |
$101K - $226K
|
71K
$88.1K
|
|
|
Nov 14, 2025
Q3 2025
|
Boothbay Fund Management, LLC
New York, NY |
BUY
|
- |
65.2K+ 14.21% |
$92.6K - $207K
|
524K
$650K
|
|
|
Nov 14, 2025
Q3 2025
|
Public Employees Retirement System Of Ohio
Columbus, OH |
BUY
|
- |
60.3K+ 763.29% |
$85.6K - $192K
|
68.2K
$84.6K
|
|
|
Nov 14, 2025
Q3 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
60.2KNew |
$85.4K - $191K
|
60.2K
$74.6K
|
|
|
Nov 14, 2025
Q3 2025
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
BUY
|
PUT |
50.5K+ 376.87% |
$71.7K - $161K
|
63.9K
$79.2K
|
|
|
Nov 07, 2025
Q3 2025
|
Vanguard Group Inc
Valley Forge, PA |
BUY
|
- |
47K+ 0.78% |
$66.7K - $149K
|
6.03M
$7.48M
|
|
|
Nov 10, 2025
Q3 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
41.9K+ 6.47% |
$59.5K - $133K
|
690K
$855K
|
|
|
Nov 17, 2025
Q3 2025
|
Jasper Ridge Partners, L.P.
Menlo Park, CA |
BUY
|
- |
41.1K+ 134.32% |
$58.4K - $131K
|
71.8K
$89K
|
|
|
Nov 14, 2025
Q3 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
31.5K+ 7.74% |
$44.7K - $100K
|
438K
$543K
|
|
|
Nov 13, 2025
Q3 2025
|
Met Life Investment Management, LLC
Whippany, NJ |
BUY
|
- |
28.8KNew |
$40.9K - $91.6K
|
28.8K
$35.7K
|
|
|
Nov 14, 2025
Q3 2025
|
Xtx Topco LTD
London, X0 |
BUY
|
- |
25.2K+ 34.33% |
$35.7K - $80.1K
|
98.5K
$122K
|
|
|
Nov 14, 2025
Q3 2025
|
State Street Corp
Boston, MA |
BUY
|
- |
24.8K+ 1.45% |
$35.2K - $78.8K
|
1.73M
$2.15M
|
|
|
Nov 12, 2025
Q3 2025
|
Group One Trading, L.P.
Chicago, IL |
BUY
|
- |
22.3KNew |
$31.7K - $71K
|
22.3K
$27.7K
|
|
|
Nov 14, 2025
Q3 2025
|
Utah Retirement Systems
Salt Lake City, UT |
BUY
|
- |
20.6K+ 40.0% |
$29.2K - $65.4K
|
72K
$89.3K
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
BUY
|
- |
20.5KNew |
$29.1K - $65.1K
|
20.5K
$25.4K
|
|
|
Nov 13, 2025
Q3 2025
|
Invesco Ltd.
Atlanta, GA |
BUY
|
- |
16.5K+ 9.39% |
$23.4K - $52.5K
|
192K
$238K
|
|
|
Nov 14, 2025
Q3 2025
|
Creative Planning
Overland Park, KS |
BUY
|
- |
15.7KNew |
$22.3K - $50K
|
15.7K
$19.5K
|
|
|
Nov 14, 2025
Q3 2025
|
Engineers Gate Manager LP
New York, NY |
BUY
|
- |
14.5KNew |
$20.6K - $46.1K
|
14.5K
$18K
|
|
|
Oct 07, 2025
Q3 2025
|
Hamilton Lane Advisors LLC
|
BUY
|
- |
14.4KNew |
$20.5K - $45.8K
|
14.4K
$17.9K
|
|
|
Nov 14, 2025
Q3 2025
|
Steven Cohen
Point72 Asset Management, L.P. | Stamford, Ct
|
BUY
|
PUT |
12.7KNew |
$18K - $40.4K
|
12.7K
$15.7K
|
|
|
Oct 29, 2025
Q3 2025
|
Wealth Enhancement Advisory Services, LLC
|
BUY
|
- |
12KNew |
$17K - $38.1K
|
12K
$14.8K
|
|
|
Nov 04, 2025
Q3 2025
|
Savant Capital, LLC
|
BUY
|
- |
11.7KNew |
$16.6K - $37.2K
|
11.7K
$14.5K
|
|
|
Oct 14, 2025
Q3 2025
|
Hbk Sorce Advisory LLC
Erie, PA |
BUY
|
- |
11.2KNew |
$15.9K - $35.5K
|
11.2K
$13.9K
|
|
|
Oct 27, 2025
Q3 2025
|
Belvedere Trading LLC
|
BUY
|
- |
10.5KNew |
$14.9K - $33.3K
|
10.5K
$13K
|
|
|
Nov 14, 2025
Q3 2025
|
Hershey Trust CO
Hershey, PA |
BUY
|
- |
10.3KNew |
$14.6K - $32.7K
|
10.3K
$12.8K
|
|
|
Nov 03, 2025
Q3 2025
|
Svb Capital Management, LLC
Menlo Park, CA |
BUY
|
- |
10.3KNew |
$14.6K - $32.7K
|
10.3K
$12.8K
|
|
|
Nov 06, 2025
Q3 2025
|
Lexington Partners L.P.
New York, NY |
BUY
|
- |
10.1KNew |
$14.4K - $32.1K
|
10.1K
$12.5K
|
|
|
Nov 14, 2025
Q3 2025
|
Point72 (Difc) LTD
Dubai, C0 |
BUY
|
- |
9.81KNew |
$13.9K - $31.2K
|
9.81K
$12.2K
|
|
|
Nov 13, 2025
Q3 2025
|
Mackenzie Financial Corp
Toronto Ontario, A6 |
BUY
|
- |
9.27K+ 3.38% |
$13.2K - $29.5K
|
284K
$352K
|
|