Alnylam Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 2, 2026	337.42	342.33	333.00	339.11	339.11	0.31%	1,910,408
Jan 30, 2026	343.10	346.50	336.39	338.06	338.06	-2.52%	1,648,284
Jan 29, 2026	349.37	350.34	345.01	346.79	346.79	-0.80%	1,625,701
Jan 28, 2026	353.66	356.84	348.00	349.58	349.58	-1.46%	1,055,831
Jan 27, 2026	361.55	368.07	354.69	354.75	354.75	-1.83%	985,945
Jan 26, 2026	357.98	364.07	352.50	361.35	361.35	0.94%	935,122
Jan 23, 2026	368.20	371.33	356.72	357.98	357.98	-3.25%	1,634,397
Jan 22, 2026	365.50	376.87	363.36	370.00	370.00	1.24%	1,864,834
Jan 21, 2026	353.01	366.00	351.55	365.46	365.46	2.79%	1,521,396
Jan 20, 2026	350.70	355.74	347.77	355.53	355.53	-1.04%	1,722,475
Jan 16, 2026	362.29	367.20	355.46	359.27	359.27	-	1,527,357
Jan 15, 2026	368.54	372.82	356.83	359.26	359.26	-2.07%	911,176
Jan 14, 2026	369.95	371.71	359.95	366.86	366.86	-0.84%	1,250,044
Jan 13, 2026	369.10	376.88	366.92	369.96	369.96	-0.26%	1,625,677
Jan 12, 2026	377.82	378.61	353.52	370.91	370.91	-6.87%	3,808,067
Jan 9, 2026	399.40	409.58	392.56	398.29	398.29	-0.28%	1,440,224
Jan 8, 2026	420.18	425.19	393.48	399.40	399.40	-5.47%	1,400,657
Jan 7, 2026	405.51	427.05	405.51	422.50	422.50	3.96%	1,426,278
Jan 6, 2026	396.23	409.18	384.42	406.40	406.40	2.15%	1,612,994
Jan 5, 2026	397.57	400.00	383.84	397.83	397.83	-0.58%	1,093,965
Jan 2, 2026	399.34	407.22	396.08	400.17	400.17	0.63%	730,517
Dec 31, 2025	397.25	402.44	397.25	397.65	397.65	0.10%	768,860
Dec 30, 2025	394.81	398.40	393.64	397.25	397.25	-0.39%	504,789
Dec 29, 2025	400.10	402.72	397.05	398.82	398.82	-0.44%	638,375
Dec 26, 2025	404.58	404.58	397.31	400.59	400.59	-0.02%	401,455
Dec 24, 2025	395.99	401.47	395.05	400.69	400.69	0.50%	408,233
Dec 23, 2025	404.72	407.43	395.99	398.70	398.70	-2.21%	792,295
Dec 22, 2025	409.60	413.59	403.20	407.73	407.73	1.87%	1,052,983
Dec 19, 2025	399.11	408.15	395.97	400.23	400.23	1.06%	12,576,505
Dec 18, 2025	394.49	404.19	391.51	396.04	396.04	1.00%	1,714,954
Dec 17, 2025	394.18	400.24	389.00	392.10	392.10	0.24%	1,041,476
Dec 16, 2025	390.65	399.64	388.54	391.17	391.17	-0.08%	1,345,516
Dec 15, 2025	394.22	402.33	390.00	391.50	391.50	-1.52%	1,483,326
Dec 12, 2025	408.86	410.04	387.03	397.55	397.55	-3.65%	1,659,227
Dec 11, 2025	403.36	414.22	402.22	412.63	412.63	2.02%	1,284,788
Dec 10, 2025	416.54	417.00	403.80	404.46	404.46	-2.59%	1,188,960
Dec 9, 2025	430.45	433.31	412.31	415.21	415.21	-3.44%	1,610,475
Dec 8, 2025	447.00	449.78	423.45	430.02	430.02	-6.13%	2,411,635
Dec 5, 2025	468.29	473.50	455.32	458.12	458.12	-1.55%	627,353
Dec 4, 2025	472.67	477.06	463.03	465.34	465.34	-1.68%	983,982
Dec 3, 2025	466.49	479.79	460.41	473.29	473.29	1.80%	1,092,993
Dec 2, 2025	453.90	472.48	453.01	464.93	464.93	2.28%	1,204,115
Dec 1, 2025	450.00	462.93	448.27	454.56	454.56	0.74%	1,070,657
Nov 28, 2025	448.18	455.76	444.43	451.23	451.23	1.37%	563,871
Nov 26, 2025	432.87	447.69	430.27	445.12	445.12	3.56%	908,163
Nov 25, 2025	436.84	441.82	428.57	429.80	429.80	-1.02%	1,009,228
Nov 24, 2025	439.46	444.67	420.30	434.23	434.23	-0.49%	1,750,352
Nov 21, 2025	448.23	449.53	433.50	436.38	436.38	-2.11%	1,298,052
Nov 20, 2025	463.32	467.73	445.34	445.79	445.79	-3.25%	787,662
Nov 19, 2025	462.27	465.32	456.90	460.76	460.76	-0.33%	893,894