Question 1

How many shares of ALNY does D. E. Shaw & Co., Inc. own?

Accepted Answer

As of 2026-Q2, D. E. Shaw & Co., Inc. holds 1.1M shares of ALNY (ALNYLAM PHARMACEUTICALS INC).

Question 2

What is D. E. Shaw & Co., Inc.'s ALNY position worth?

Accepted Answer

As of 2026-Q2, D. E. Shaw & Co., Inc.'s ALNY position is worth $332.4M.

Question 3

Is D. E. Shaw & Co., Inc. buying or selling ALNY?

Accepted Answer

In 2026-Q2, D. E. Shaw & Co., Inc. increased their ALNY position (+4.3% change in shares).

Question 4

When did D. E. Shaw & Co., Inc. first buy ALNY?

Accepted Answer

Based on available 13F filings, D. E. Shaw & Co., Inc. first reported a position in ALNY in 2024-Q3. They have held the position across 31 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	1.1M	+4.3%	$332.4M	0.2%	$301.03	39
2026-Q1	Increased	1.1M	+138.3%	$350.4M	0.2%	$330.87	60
2025-Q4	Increased	444,493	+122.9%	$176.8M	0.1%	$397.65	49
2025-Q3	Increased	199,417	+84.2%	$90.9M	0.1%	$456.00	46
2025-Q2	Decreased	108,276	-62.6%	$35.3M	0.0%	$326.09	0
2025-Q1	Decreased	289,862	-20.2%	$78.3M	0.1%	$270.02	0
2024-Q4	Increased	363,085	+9.3%	$85.4M	0.1%	$235.31	33
2024-Q3	Increased	332,305	+18.9%	$91.4M	0.1%	$275.03	35

ALNYShowing 8 of 31 quarters

ALNY
Showing 8 of 31 quarters