ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

Headlands Technologies LLC's Holding History (CIK: 0001570271)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,345 Value ($000) $535 Avg Close $442.56 Range $387.03 - $495.55

Q3 2025

Shares 10,192 Value ($000) $4,648 Avg Close $407.20 Range $309.57 - $484.21

Q1 2024

Shares 3,150 Value ($000) $471 Avg Close $166.82 Range $143.52 - $199.38

Q3 2023

Shares 1,146 Value ($000) $203 Avg Close $191.12 Range $168.65 - $218.88

Q2 2023

Shares 2,664 Value ($000) $506 Avg Close $198.26 Range $183.00 - $212.47

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,345	$535	$442.56	$387.03 - $495.55
Q3 2025	10,192	$4,648	$407.20	$309.57 - $484.21
Q1 2024	3,150	$471	$166.82	$143.52 - $199.38
Q3 2023	1,146	$203	$191.12	$168.65 - $218.88
Q2 2023	2,664	$506	$198.26	$183.00 - $212.47