ALNYLAM PHARMACEUTICALS INC

Ticker: ALNY CUSIP: 02043Q107 Class: EQTY

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO's Holding History (CIK: 0001007280)

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

Q4 2025

Shares 44,498 Value ($000) $17,695 Avg Close $442.56 Range $387.03 - $495.55

Q3 2025

Shares 38,994 Value ($000) $17,781 Avg Close $407.20 Range $309.57 - $484.21

Q2 2025

Shares 38,752 Value ($000) $12,637 Avg Close $276.71 Range $205.87 - $327.21

Q1 2025

Shares 39,669 Value ($000) $10,711 Avg Close $257.00 Range $230.79 - $300.90

Q4 2024

Shares 44,257 Value ($000) $10,414 Avg Close $262.99 Range $229.86 - $304.39

Q3 2024

Shares 48,437 Value ($000) $13,322 Avg Close $260.36 Range $231.01 - $287.55

Q2 2024

Shares 51,712 Value ($000) $12,566 Avg Close $157.87 Range $141.98 - $252.87

Q1 2024

Shares 51,548 Value ($000) $7,704 Avg Close $166.82 Range $143.52 - $199.38

Q4 2023

Shares 55,417 Value ($000) $10,607 Avg Close $170.34 Range $148.10 - $198.00

Q3 2023

Shares 54,670 Value ($000) $9,682 Avg Close $191.12 Range $168.65 - $218.88

Q2 2023

Shares 60,258 Value ($000) $11,445 Avg Close $198.26 Range $183.00 - $212.47

Q1 2023

Shares 65,349 Value ($000) $13,091 Avg Close $210.20 Range $179.19 - $242.39

Q4 2022

Shares 68,099 Value ($000) $16,184 Avg Close $213.29 Range $181.65 - $242.97

Q3 2022

Shares 61,392 Value ($000) $12,288 Avg Close $190.74 Range $135.46 - $236.80

Q2 2022

Shares 61,148 Value ($000) $8,918 Avg Close $141.87 Range $117.58 - $180.35

Q1 2022

Shares 63,361 Value ($000) $10,346 Avg Close $152.35 Range $125.00 - $174.66

Q4 2021

Shares 64,791 Value ($000) $10,987 Avg Close $185.86 Range $154.82 - $212.00

Q3 2021

Shares 67,010 Value ($000) $12,652 Avg Close $187.58 Range $166.16 - $209.73

Q2 2021

Shares 66,961 Value ($000) $11,351 Avg Close $146.46 Range $125.08 - $177.53

Q1 2021

Shares 62,249 Value ($000) $8,789 Avg Close $150.49 Range $124.00 - $178.41

Q4 2020

Shares 56,733 Value ($000) $7,374 Avg Close $133.53 Range $119.29 - $148.76

Q3 2020

Shares 45,797 Value ($000) $6,668 Avg Close $142.10 Range $119.67 - $167.33

Q2 2020

Shares 43,596 Value ($000) $6,457 Avg Close $134.81 Range $98.01 - $158.37

Q1 2020

Shares 42,912 Value ($000) $4,671 Avg Close $115.43 Range $84.97 - $134.51

Q4 2019

Shares 35,990 Value ($000) $4,145 Avg Close $99.70 Range $73.32 - $125.72

Q3 2019

Shares 37,073 Value ($000) $2,981 Avg Close $79.11 Range $69.11 - $88.00

Q2 2019

Shares 36,985 Value ($000) $2,684 Avg Close $76.72 Range $65.81 - $96.08

Q1 2019

Shares 35,305 Value ($000) $3,299 Avg Close $83.64 Range $70.29 - $93.95

Q4 2018

Shares 33,288 Value ($000) $2,427 Avg Close $76.92 Range $60.27 - $90.00

Q3 2018

Shares 35,895 Value ($000) $3,142 Avg Close $100.59 Range $86.95 - $124.22

Q2 2018

Shares 36,183 Value ($000) $3,564 Avg Close $99.19 Range $87.35 - $118.71

Q1 2018

Shares 36,825 Value ($000) $4,386 Avg Close $128.92 Range $108.13 - $153.99

Q4 2017

Shares 37,191 Value ($000) $4,725 Avg Close $125.65 Range $111.25 - $147.63

Q3 2017

Shares 32,880 Value ($000) $3,863 Avg Close $85.36 Range $70.76 - $119.02

Q2 2017

Shares 31,854 Value ($000) $2,541 Avg Close $63.91 Range $46.90 - $86.92

Q1 2017

Shares 32,511 Value ($000) $1,666 Avg Close $46.22 Range $35.98 - $60.41

Q4 2016

Shares 32,511 Value ($000) $1,494 Avg Close $41.87 Range $31.38 - $71.67

Q3 2016

Shares 32,375 Value ($000) $2,194 Avg Close $70.55 Range $53.56 - $80.11

Q2 2016

Shares 28,961 Value ($000) $1,607 Avg Close $63.00 Range $49.96 - $75.08

Q1 2016

Shares 27,961 Value ($000) $1,755 Avg Close $66.49 Range $51.51 - $98.00

Q4 2015

Shares 42,839 Value ($000) $4,033 Avg Close $92.72 Range $71.14 - $110.75

Q3 2015

Shares 36,694 Value ($000) $2,949 Avg Close $111.10 Range $76.46 - $137.89

Q2 2015

Shares 41,316 Value ($000) $4,953 Avg Close $119.50 Range $98.63 - $140.00

Q1 2015

Shares 39,947 Value ($000) $4,171 Avg Close $101.34 Range $82.06 - $121.93

Q4 2014

Shares 51,912 Value ($000) $5,035 Avg Close $92.65 Range $72.80 - $111.49

Q3 2014

Shares 46,759 Value ($000) $3,652 Avg Close $64.51 Range $51.93 - $79.88

Q2 2014

Shares 20,109 Value ($000) $1,270 Avg Close $59.44 Range $47.03 - $71.40

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	44,498	$17,695	$442.56	$387.03 - $495.55
Q3 2025	38,994	$17,781	$407.20	$309.57 - $484.21
Q2 2025	38,752	$12,637	$276.71	$205.87 - $327.21
Q1 2025	39,669	$10,711	$257.00	$230.79 - $300.90
Q4 2024	44,257	$10,414	$262.99	$229.86 - $304.39
Q3 2024	48,437	$13,322	$260.36	$231.01 - $287.55
Q2 2024	51,712	$12,566	$157.87	$141.98 - $252.87
Q1 2024	51,548	$7,704	$166.82	$143.52 - $199.38
Q4 2023	55,417	$10,607	$170.34	$148.10 - $198.00
Q3 2023	54,670	$9,682	$191.12	$168.65 - $218.88
Q2 2023	60,258	$11,445	$198.26	$183.00 - $212.47
Q1 2023	65,349	$13,091	$210.20	$179.19 - $242.39
Q4 2022	68,099	$16,184	$213.29	$181.65 - $242.97
Q3 2022	61,392	$12,288	$190.74	$135.46 - $236.80
Q2 2022	61,148	$8,918	$141.87	$117.58 - $180.35
Q1 2022	63,361	$10,346	$152.35	$125.00 - $174.66
Q4 2021	64,791	$10,987	$185.86	$154.82 - $212.00
Q3 2021	67,010	$12,652	$187.58	$166.16 - $209.73
Q2 2021	66,961	$11,351	$146.46	$125.08 - $177.53
Q1 2021	62,249	$8,789	$150.49	$124.00 - $178.41
Q4 2020	56,733	$7,374	$133.53	$119.29 - $148.76
Q3 2020	45,797	$6,668	$142.10	$119.67 - $167.33
Q2 2020	43,596	$6,457	$134.81	$98.01 - $158.37
Q1 2020	42,912	$4,671	$115.43	$84.97 - $134.51
Q4 2019	35,990	$4,145	$99.70	$73.32 - $125.72
Q3 2019	37,073	$2,981	$79.11	$69.11 - $88.00
Q2 2019	36,985	$2,684	$76.72	$65.81 - $96.08
Q1 2019	35,305	$3,299	$83.64	$70.29 - $93.95
Q4 2018	33,288	$2,427	$76.92	$60.27 - $90.00
Q3 2018	35,895	$3,142	$100.59	$86.95 - $124.22
Q2 2018	36,183	$3,564	$99.19	$87.35 - $118.71
Q1 2018	36,825	$4,386	$128.92	$108.13 - $153.99
Q4 2017	37,191	$4,725	$125.65	$111.25 - $147.63
Q3 2017	32,880	$3,863	$85.36	$70.76 - $119.02
Q2 2017	31,854	$2,541	$63.91	$46.90 - $86.92
Q1 2017	32,511	$1,666	$46.22	$35.98 - $60.41
Q4 2016	32,511	$1,494	$41.87	$31.38 - $71.67
Q3 2016	32,375	$2,194	$70.55	$53.56 - $80.11
Q2 2016	28,961	$1,607	$63.00	$49.96 - $75.08
Q1 2016	27,961	$1,755	$66.49	$51.51 - $98.00
Q4 2015	42,839	$4,033	$92.72	$71.14 - $110.75
Q3 2015	36,694	$2,949	$111.10	$76.46 - $137.89
Q2 2015	41,316	$4,953	$119.50	$98.63 - $140.00
Q1 2015	39,947	$4,171	$101.34	$82.06 - $121.93
Q4 2014	51,912	$5,035	$92.65	$72.80 - $111.49
Q3 2014	46,759	$3,652	$64.51	$51.93 - $79.88
Q2 2014	20,109	$1,270	$59.44	$47.03 - $71.40