Robeco Institutional Asset Management B.V. Alnylam Pharmaceuticals, Inc. Transaction History

Robeco Institutional Asset Management B.V.

  • $66.7 Billion
  • Q3 2025

A detailed history of Robeco Institutional Asset Management B.V. transactions in Alnylam Pharmaceuticals, Inc. stock. As of the latest transaction made, Robeco Institutional Asset Management B.V. holds 113,074 shares of ALNY stock, worth $50.1 Million. This represents 0.08% of its overall portfolio holdings.

Number of Shares
113,074
Previous 96,368 17.34%
Holding current value
$50.1 Million
Previous $31.4 Million 64.08%
% of portfolio
0.08%
Previous 0.05%

Shares

35 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Oct 22, 2025
BUY
$311.12 - $482.13 $5.2 Million - $8.05 Million
16,706 Added 17.34%
113,074 $51.6 Million
Q2 2025

Jul 18, 2025
SELL
$224.32 - $326.09 $1.6 Million - $2.32 Million
-7,113 Reduced 6.87%
96,368 $31.4 Million
Q1 2025

Apr 23, 2025
BUY
$233.07 - $290.7 $812,715 - $1.01 Million
3,487 Added 3.49%
103,481 $27.9 Million
Q4 2024

Jan 22, 2025
BUY
$232.27 - $300.43 $6.14 Million - $7.94 Million
26,426 Added 35.92%
99,994 $23.5 Million
Q3 2024

Oct 29, 2024
BUY
$233.81 - $287.01 $5.59 Million - $6.86 Million
23,898 Added 48.11%
73,568 $20.2 Million
Q2 2024

Jul 22, 2024
BUY
$143.31 - $247.0 $2.99 Million - $5.15 Million
20,830 Added 72.23%
49,670 $12.1 Million
Q1 2024

Apr 24, 2024
BUY
$146.51 - $198.2 $689,329 - $932,531
4,705 Added 19.49%
28,840 $4.31 Million
Q4 2023

Feb 14, 2024
BUY
$151.41 - $196.57 $542,956 - $704,900
3,586 Added 17.45%
24,135 $4.62 Million
Q4 2023

Feb 08, 2024
BUY
$151.41 - $196.57 $1.89 Million - $2.46 Million
12,513 Added 155.71%
20,549 $24.1 Million
Q3 2023

Oct 23, 2023
SELL
$170.77 - $211.65 $3.26 Million - $4.04 Million
-19,107 Reduced 70.39%
8,036 $1.42 Million
Q2 2023

Jul 24, 2023
SELL
$185.01 - $212.05 $4.74 Million - $5.43 Million
-25,615 Reduced 48.55%
27,143 $5.16 Million
Q1 2023

May 03, 2023
BUY
$182.66 - $235.53 $140,830 - $181,593
771 Added 1.48%
52,758 $10.6 Million
Q4 2022

Feb 06, 2023
BUY
$185.53 - $241.31 $2.34 Million - $3.05 Million
12,628 Added 32.08%
51,987 $12.4 Million
Q3 2022

Dec 01, 2022
BUY
$138.54 - $232.0 $5.12 Million - $8.57 Million
36,948 Added 1532.48%
39,359 $7.88 Million
Q3 2022

Oct 26, 2022
BUY
$138.54 - $232.0 $5.12 Million - $8.57 Million
36,948 Added 1532.48%
39,359 $7.88 Million
Q2 2022

Dec 01, 2022
SELL
$120.42 - $169.29 $69,723 - $98,018
-579 Reduced 19.36%
2,411 $352,000
Q2 2022

Jul 27, 2022
SELL
$120.42 - $169.29 $69,723 - $98,018
-579 Reduced 19.36%
2,411 $352,000
Q1 2022

Dec 01, 2022
BUY
$127.18 - $173.91 $375,308 - $513,208
2,951 Added 7566.67%
2,990 $488,000
Q1 2022

Apr 26, 2022
BUY
$127.18 - $173.91 $375,308 - $513,208
2,951 Added 7566.67%
2,990 $488,000
Q4 2021

Dec 01, 2022
SELL
$159.56 - $209.29 $568,512 - $745,700
-3,563 Reduced 98.92%
39 $7,000
Q4 2021

Jan 31, 2022
BUY
$159.56 - $209.29 $6,222 - $8,162
39 New
39 $7,000
Q3 2021

Oct 20, 2021
SELL
$169.75 - $207.73 $611,439 - $748,243
-3,602 Closed
0 $0
Q2 2021

Dec 01, 2022
SELL
$128.63 - $176.89 $669,905 - $921,243
-5,208 Reduced 59.11%
3,602 $611,000
Q2 2021

Jul 28, 2021
SELL
$128.63 - $176.89 $669,905 - $921,243
-5,208 Reduced 59.11%
3,602 $611,000
Q1 2021

Dec 01, 2022
SELL
$126.83 - $175.69 $3.87 Million - $5.37 Million
-30,549 Reduced 77.62%
8,810 $1.24 Million
Q1 2021

Apr 23, 2021
SELL
$126.83 - $175.69 $690,462 - $956,456
-5,444 Reduced 38.19%
8,810 $1.24 Million
Q4 2020

Dec 01, 2022
SELL
$122.97 - $147.0 $3.09 Million - $3.69 Million
-25,105 Reduced 63.78%
14,254 $1.85 Million
Q4 2020

Jan 28, 2021
SELL
$122.97 - $147.0 $2.53 Million - $3.03 Million
-20,599 Reduced 59.1%
14,254 $1.85 Million
Q3 2020

Oct 29, 2020
SELL
$121.19 - $165.49 $3.09 Million - $4.23 Million
-25,534 Reduced 42.28%
34,853 $5.07 Million
Q2 2020

Jul 20, 2020
BUY
$104.21 - $156.44 $6.03 Million - $9.05 Million
57,870 Added 2299.17%
60,387 $8.94 Million
Q1 2020

Apr 30, 2020
BUY
$93.12 - $133.99 $234,383 - $337,252
2,517 New
2,517 $273,000
Q4 2018

Feb 08, 2019
SELL
$62.67 - $88.33 $89,430 - $126,046
-1,427 Closed
0 $0
Q3 2018

Oct 31, 2018
SELL
$87.52 - $122.67 $124,891 - $175,050
-1,427 Reduced 50.0%
1,427 $125,000
Q3 2018

Oct 25, 2018
BUY
$87.52 - $122.67 $124,891 - $175,050
1,427 Added 100.0%
2,854 $266,000
Q1 2018

May 07, 2018
BUY
$115.92 - $148.54 $165,417 - $211,966
1,427 New
1,427 $170,000

Others Institutions Holding ALNY

# of Institutions
830
Shares Held
118M
Call Options Held
584K
Put Options Held
648K
View Full List

About ALNYLAM PHARMACEUTICALS, INC.

ALNY Quotes by TradingView
  • Ticker ALNY
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 123,028,000
  • Market Cap $54.5B
  • Description
  • Alnylam Pharmaceuticals, Inc., a biopharmaceutical company, focuses on discovering, developing, and commercializing novel therapeutics based on ribonucleic acid interference. The company's pipeline of investigational RNAi therapeutics focuses on genetic medicines, cardio-metabolic diseases, hepatic infectious diseases, and central nervous system...
More about ALNY
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