Alector, Inc. — Institutional Ownership

Which tracked institutions hold ALEC, and how they changed the position last quarter. Latest holdings as of Mar 31, 2026. Source: SEC 13-F filings.

19
Funds holding
$34820111
Total value held
Buying
15 added/new · 3 reduced
# Institution Value Shares Δ Shares Change (QoQ)
1 Blackrock, Inc. $16643677 7741245 +593479 +8.30%
2 Merck & Co., Inc. $7623297 3545719 Held
3 State Street Corp $4010881 1865526 +51228 +2.82%
4 Northern Trust Corp $1488351 692256 +104603 +17.80%
5 Goldman Sachs Group Inc $1299809 604562 +166603 +38.04%
6 Bank Of America Corp /De/ $818951 380908 +246402 +183.19%
7 Morgan Stanley $783821 364567 +45495 +14.26%
8 Ameriprise Financial Inc $583234 271272 -83027 -23.43%
9 Bank Of New York Mellon Corp $542440 252297 +34435 +15.81%
10 Invesco Ltd. $435970 279468 +87157 +45.32%
11 Blackstone Inc. $165862 77145 NEW BUY
12 Wells Fargo & Company/Mn $140569 90108 +37683 +71.88%
13 Sei Investments Co $115769 53846 NEW BUY
14 Barclays Plc $91570 42591 NEW BUY
15 Prudential Financial Inc $51159 23795 -8430 -26.16%
16 Royal Bank Of Canada $15000 7047 NEW BUY
17 Citigroup Inc $9602 6155 -47783 -88.59%
18 Amalgamated Financial Corp. $136 9510 NEW BUY
19 Fifth Third Bancorp $13 6 NEW BUY

Aggregated across tracked institutional filers. Reported quarterly on SEC Form 13-F and may lag. For research only — not investment advice.