SG Americas Securities
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SG Americas Securities’s Alector ALEC Stock Holding History

SG Americas Securities’s Portfolio ALEC Stock Details ALEC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-27,002
Closed -$42K – 3189
2025
Q4 		$42K Buy
+27,002
New +$47.9K ﹤0.01% 3383
2025
Q2 		– Sell
-60,248
Closed -$74K – 2900
2025
Q1 		$74K Buy
60,248
+20,914
+53% +$34K ﹤0.01% 3139
2024
Q4 		$74K Buy
39,334
+8,581
+28% +$32.3K ﹤0.01% 2820
2024
Q3 		$143K Sell
30,753
-33,430
-52% -$179K ﹤0.01% 2771
2024
Q2 		$291K Buy
+64,183
New +$330K ﹤0.01% 1979
2024
Q1 		– Sell
-16,726
Closed -$133K – 2943
2023
Q4 		$133K Buy
+16,726
New +$99.1K ﹤0.01% 2515
2023
Q3 		– Sell
-15,456
Closed -$93K – 3089
2023
Q2 		$93K Sell
15,456
-25,989
-63% -$181K ﹤0.01% 2094
2023
Q1 		$257K Buy
41,445
+24,230
+141% +$197K ﹤0.01% 2230
2022
Q4 		$159K Sell
17,215
-23,173
-57% -$202K ﹤0.01% 2376
2022
Q3 		$382K Buy
40,388
+2,356
+6% +$25.5K ﹤0.01% 1781
2022
Q2 		$386K Sell
38,032
-4,779
-11% -$47.7K ﹤0.01% 2177
2022
Q1 		$610K Sell
42,811
-10,632
-20% -$168K ﹤0.01% 1759
2021
Q4 		$1.1M Sell
53,443
-25,799
-33% -$582K 0.01% 1581
2021
Q3 		$1.81M Buy
+79,242
New +$2.22M 0.01% 1367
2021
Q2 		– Sell
-10,753
Closed -$217K – 2828
2021
Q1 		$217K Buy
10,753
+3,272
+44% +$58.7K ﹤0.01% 2629
2020
Q4 		$113K Sell
7,481
-43,149
-85% -$536K ﹤0.01% 2975
2020
Q3 		$533K Buy
50,630
+36,982
+271% +$598K ﹤0.01% 1598
2020
Q2 		$334K Buy
13,648
+3,608
+36% +$99.6K ﹤0.01% 2437
2020
Q1 		$242K Buy
+10,040
New +$256K ﹤0.01% 2373

Other funds holding ALEC

TCM
TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
FCMI
Foresite Capital Management IV Larkspur, California $290M AUM 143.88% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
MC
Merck & Co Rahway, New Jersey $526M AUM 175.27% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
6CM
683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3.01B AUM 119.46% 1-Year Est. Return

SG Americas Securities's ALEC Position: Q1 2026 in Review

SG Americas Securities sold out of Alector (ALEC) in Q1 2026, closing a stake of 27,002 shares — an estimated $42K sold.

SG Americas Securities first reported a position in ALEC in Q1 2020 and held it in 19 quarters. The position peaked at $1.81M in Q3 2021. 138 funds tracked by Wall St. Rank hold ALEC as of Q1 2026.

  • SG Americas Securities reported no remaining Alector position as of Q1 2026 after selling out during the quarter.
  • SG Americas Securities sold 27,002 Alector shares in Q1 2026, an estimated $42K.
  • SG Americas Securities first reported a position in Alector in Q1 2020 and held it in 19 quarters.
  • SG Americas Securities's Alector position peaked at $1.81M in Q3 2021.
  • 138 funds tracked by Wall St. Rank held Alector as of Q1 2026.

Based on SG Americas Securities's 13F filing for Q1 2026, filed 16 Apr 2026.