BlackRock’s Alector ALEC Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $15.8M | Buy |
7,847,879
+106,634
| +1% | +$229K | ﹤0.01% | 3424 |
|
|
2026
Q1 | $16.6M | Buy |
7,741,245
+593,479
| +8% | +$1.19M | ﹤0.01% | 3190 |
|
|
2025
Q4 | $11.2M | Sell |
7,147,766
-50,207
| -0.7% | -$89.1K | ﹤0.01% | 3408 |
|
|
2025
Q3 | $21.3M | Sell |
7,197,973
-775,607
| -10% | -$1.71M | ﹤0.01% | 3060 |
|
|
2025
Q2 | $11.2M | Sell |
7,973,580
-306,122
| -4% | -$383K | ﹤0.01% | 3358 |
|
|
2025
Q1 | $10.2M | Sell |
8,279,702
-857,045
| -9% | -$1.4M | ﹤0.01% | 3309 |
|
|
2024
Q4 | $17.3M | Sell |
9,136,747
-215,297
| -2% | -$810K | ﹤0.01% | 3132 |
|
|
2024
Q3 | $43.6M | Buy |
9,352,044
+250,607
| +3% | +$1.34M | ﹤0.01% | 2552 |
|
|
2024
Q2 | $41.3M | Buy |
9,101,437
+617,872
| +7% | +$3.18M | ﹤0.01% | 2538 |
|
|
2024
Q1 | $51.1M | Buy |
8,483,565
+415,012
| +5% | +$2.71M | ﹤0.01% | 2427 |
|
|
2023
Q4 | $64.4M | Buy |
8,068,553
+337,575
| +4% | +$2M | ﹤0.01% | 2325 |
|
|
2023
Q3 | $50.1M | Sell |
7,730,978
-94,575
| -1% | -$612K | ﹤0.01% | 2392 |
|
|
2023
Q2 | $47M | Buy |
7,825,553
+241,637
| +3% | +$1.69M | ﹤0.01% | 2521 |
|
|
2023
Q1 | $46.9M | Buy |
7,583,916
+215,296
| +3% | +$1.75M | ﹤0.01% | 2492 |
|
|
2022
Q4 | $68M | Buy |
7,368,620
+1,365,044
| +23% | +$11.9M | ﹤0.01% | 2257 |
|
|
2022
Q3 | $56.8M | Buy |
6,003,576
+178,917
| +3% | +$1.93M | ﹤0.01% | 2343 |
|
|
2022
Q2 | $59.2M | Buy |
5,824,659
+454,674
| +8% | +$4.53M | ﹤0.01% | 2372 |
|
|
2022
Q1 | $76.5M | Sell |
5,369,985
-10,424
| -0.2% | -$165K | ﹤0.01% | 2311 |
|
|
2021
Q4 | $111M | Buy |
5,380,409
+109,595
| +2% | +$2.47M | ﹤0.01% | 2154 |
|
|
2021
Q3 | $120M | Buy |
5,270,814
+85,050
| +2% | +$2.38M | ﹤0.01% | 2095 |
|
|
2021
Q2 | $108M | Sell |
5,185,764
-97,745
| -2% | -$1.84M | ﹤0.01% | 2197 |
|
|
2021
Q1 | $106M | Buy |
5,283,509
+121,313
| +2% | +$2.17M | ﹤0.01% | 2165 |
|
|
2020
Q4 | $78.1M | Sell |
5,162,196
-183,075
| -3% | -$2.28M | ﹤0.01% | 2224 |
|
|
2020
Q3 | $56.3M | Buy |
5,345,271
+205,976
| +4% | +$3.33M | ﹤0.01% | 2225 |
|
|
2020
Q2 | $126M | Buy |
5,139,295
+934,409
| +22% | +$25.8M | 0.01% | 1696 |
|
|
2020
Q1 | $101M | Buy |
4,204,886
+1,279,868
| +44% | +$32.6M | 0.01% | 1635 |
|
|
2019
Q4 | $50.4M | Buy |
2,925,018
+748,096
| +34% | +$12.7M | ﹤0.01% | 2360 |
|
|
2019
Q3 | $31.4M | Buy |
2,176,922
+1,310,102
| +151% | +$23.6M | ﹤0.01% | 2555 |
|
|
2019
Q2 | $16.5M | Buy |
866,820
+427,642
| +97% | +$8.68M | ﹤0.01% | 2953 |
|
|
2019
Q1 | $8.22M | Buy |
+439,178
| New | +$8.31M | ﹤0.01% | 3205 |
|
Other funds holding ALEC
KCM
MC
6CM
BlackRock's ALEC Position: Q2 2026 in Review
BlackRock increased its Alector (ALEC) stake by 1.4% in Q2 2026, buying an estimated $229K and bringing the position to 7,847,879 shares worth $15.8M. The position accounts for ﹤0.01% of the portfolio, ranked #3424.
BlackRock first reported a position in ALEC in Q1 2019 and has held it in 30 quarters since. The position peaked at $126M in Q2 2020. 140 funds tracked by Wall St. Rank hold ALEC as of Q2 2026.
- BlackRock held 7,847,879 shares of Alector worth $15.8M as of Q2 2026.
- BlackRock bought 106,634 Alector shares in Q2 2026, an estimated $229K.
- Alector made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #3424 holding.
- BlackRock first reported a position in Alector in Q1 2019 and has held it in 30 quarters since.
- BlackRock's Alector position peaked at $126M in Q2 2020.
- 140 funds tracked by Wall St. Rank held Alector as of Q2 2026.
Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.