ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

Portman Square Capital LLP's Holding History (CIK: 0001966898)

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

Q4 2025

Shares 2,457 Value ($000) $977 Avg Close $442.56 Range $387.03 - $495.55

Q2 2025

Shares 6,967 Value ($000) $2,272 Avg Close $276.71 Range $205.87 - $327.21

Q1 2025

Shares 12,529 Value ($000) $3,383 Avg Close $257.00 Range $230.79 - $300.90

Q4 2024

Shares 12,939 Value ($000) $3,045 Avg Close $262.99 Range $229.86 - $304.39

Q3 2024

Shares 8,513 Value ($000) $2,341 Avg Close $260.36 Range $231.01 - $287.55

Q2 2024

Shares 11,848 Value ($000) $2,879 Avg Close $157.87 Range $141.98 - $252.87

Q1 2024

Shares 16,023 Value ($000) $2,395 Avg Close $166.82 Range $143.52 - $199.38

Q4 2023

Shares 5,963 Value ($000) $1,141 Avg Close $170.34 Range $148.10 - $198.00

Q3 2023

Shares 11,914 Value ($000) $2,110 Avg Close $191.12 Range $168.65 - $218.88

Q2 2023

Shares 9,768 Value ($000) $1,855 Avg Close $198.26 Range $183.00 - $212.47

Q1 2023

Shares 4,892 Value ($000) $980 Avg Close $210.20 Range $179.19 - $242.39

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,457	$977	$442.56	$387.03 - $495.55
Q2 2025	6,967	$2,272	$276.71	$205.87 - $327.21
Q1 2025	12,529	$3,383	$257.00	$230.79 - $300.90
Q4 2024	12,939	$3,045	$262.99	$229.86 - $304.39
Q3 2024	8,513	$2,341	$260.36	$231.01 - $287.55
Q2 2024	11,848	$2,879	$157.87	$141.98 - $252.87
Q1 2024	16,023	$2,395	$166.82	$143.52 - $199.38
Q4 2023	5,963	$1,141	$170.34	$148.10 - $198.00
Q3 2023	11,914	$2,110	$191.12	$168.65 - $218.88
Q2 2023	9,768	$1,855	$198.26	$183.00 - $212.47
Q1 2023	4,892	$980	$210.20	$179.19 - $242.39