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L.J. Altfest & Co’s Alnylam Pharmaceuticals ALNY Stock Holding History

L.J. Altfest & Co’s Portfolio ALNY Stock Details ALNY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-1,317
Closed -$436K – 314
2026
Q1 		$436K Sell
1,317
-61
-4% -$20.8K 0.05% 236
2025
Q4 		$548K Buy
+1,378
New +$610K 0.06% 209
2025
Q2 		– Sell
-1,050
Closed -$284K – 335
2025
Q1 		$284K Buy
+1,050
New +$270K 0.04% 279
2024
Q3 		– Sell
-2,112
Closed -$513K – 334
2024
Q2 		$513K Buy
2,112
+12
+0.6% +$1.89K 0.07% 192
2024
Q1 		$314K Buy
2,100
+27
+1% +$4.5K 0.04% 254
2023
Q4 		$397K Buy
2,073
+475
+30% +$80.9K 0.06% 214
2023
Q3 		$283K Buy
1,598
+489
+44% +$93.3K 0.04% 247
2023
Q2 		$211K Sell
1,109
-18
-2% -$3.57K 0.03% 278
2023
Q1 		$226K Sell
1,127
-11
-1% -$2.31K 0.04% 253
2022
Q4 		$270K Sell
1,138
-38
-3% -$8.11K 0.04% 221
2022
Q3 		$235K Sell
1,176
-411
-26% -$78.4K 0.04% 239
2022
Q2 		$231K Sell
1,587
-18
-1% -$2.55K 0.04% 227
2022
Q1 		$262K Buy
+1,605
New +$245K 0.05% 220

Other funds holding ALNY

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

L.J. Altfest & Co's ALNY Position: Q2 2026 in Review

L.J. Altfest & Co sold out of Alnylam Pharmaceuticals (ALNY) in Q2 2026, closing a stake of 1,317 shares — an estimated $436K sold.

L.J. Altfest & Co first reported a position in ALNY in Q1 2022 and held it in 13 quarters. The position peaked at $548K in Q4 2025. 790 funds tracked by Wall St. Rank hold ALNY as of Q2 2026.

  • L.J. Altfest & Co reported no remaining Alnylam Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • L.J. Altfest & Co sold 1,317 Alnylam Pharmaceuticals shares in Q2 2026, an estimated $436K.
  • L.J. Altfest & Co first reported a position in Alnylam Pharmaceuticals in Q1 2022 and held it in 13 quarters.
  • L.J. Altfest & Co's Alnylam Pharmaceuticals position peaked at $548K in Q4 2025.
  • 790 funds tracked by Wall St. Rank held Alnylam Pharmaceuticals as of Q2 2026.

Based on L.J. Altfest & Co's 13F filing for Q2 2026, filed 30 Jul 2026.