Alnylam Pharmaceuticals Inc (ALNY) — Price History
As of 2026-08-07 — refreshed nightly from the Closelook data lake. Diary readings, not advice.
Daily prices
| Date | Open | High | Low | Close | Chg % | Volume |
|---|---|---|---|---|---|---|
| 2026-08-07 | 217.31 | 219.64 | 210.49 | 219.20 | +1.43% | 1,735,900 |
| 2026-08-06 | 228.58 | 234.00 | 212.98 | 216.12 | -5.51% | 2,274,600 |
| 2026-08-05 | 221.74 | 229.65 | 221.50 | 228.72 | +4.44% | 2,734,600 |
| 2026-08-04 | 220.33 | 222.59 | 215.07 | 219.00 | -0.60% | 3,107,600 |
| 2026-08-03 | 208.04 | 220.49 | 208.04 | 220.33 | +7.21% | 3,399,800 |
| 2026-07-31 | 205.46 | 207.99 | 200.11 | 205.52 | +0.02% | 4,477,600 |
| 2026-07-30 | 225.02 | 230.00 | 197.81 | 205.48 | -28.31% | 9,826,800 |
| 2026-07-29 | 288.09 | 290.60 | 284.15 | 286.62 | -0.62% | 1,301,300 |
| 2026-07-28 | 282.79 | 290.47 | 281.23 | 288.41 | +3.60% | 1,437,300 |
| 2026-07-27 | 272.66 | 284.68 | 272.66 | 278.40 | +2.44% | 1,409,600 |
| 2026-07-24 | 268.74 | 275.58 | 265.64 | 271.77 | +1.13% | 1,150,900 |
| 2026-07-23 | 265.95 | 269.22 | 262.21 | 268.74 | +0.66% | 1,140,800 |
| 2026-07-22 | 270.84 | 273.72 | 264.21 | 266.99 | -1.61% | 1,104,600 |
| 2026-07-21 | 272.40 | 278.30 | 270.01 | 271.37 | -0.48% | 982,800 |
| 2026-07-20 | 267.55 | 275.25 | 266.27 | 272.67 | +1.94% | 1,359,300 |
| 2026-07-17 | 280.99 | 284.36 | 266.43 | 267.47 | -5.54% | 1,378,100 |
| 2026-07-16 | 279.65 | 286.60 | 273.78 | 283.15 | +1.44% | 1,436,200 |
| 2026-07-15 | 281.70 | 284.80 | 275.84 | 279.14 | -0.75% | 1,284,900 |
| 2026-07-14 | 283.55 | 286.76 | 279.43 | 281.26 | -2.36% | 1,093,100 |
| 2026-07-13 | 298.01 | 298.76 | 279.41 | 288.06 | -3.58% | 2,682,700 |
| 2026-07-10 | 314.71 | 322.49 | 293.78 | 298.76 | -4.49% | 2,538,100 |
| 2026-07-09 | 378.49 | 380.00 | 311.10 | 312.79 | -3.31% | 5,865,000 |
| 2026-07-08 | 318.50 | 325.37 | 316.78 | 323.50 | +0.59% | 897,700 |
| 2026-07-07 | 317.07 | 321.98 | 315.35 | 321.59 | +2.73% | 980,400 |
| 2026-07-06 | 319.34 | 319.34 | 307.13 | 313.04 | +0.08% | 891,800 |
| 2026-07-02 | 303.87 | 317.17 | 303.00 | 312.78 | +3.68% | 1,093,400 |
| 2026-07-01 | 304.54 | 309.28 | 301.50 | 301.67 | +0.21% | 1,070,500 |
| 2026-06-30 | 296.82 | 302.74 | 295.18 | 301.03 | +2.56% | 1,411,100 |
| 2026-06-29 | 296.97 | 298.28 | 291.90 | 293.52 | +0.74% | 1,367,300 |
| 2026-06-26 | 297.57 | 302.96 | 290.37 | 291.37 | -0.61% | 1,490,600 |
| 2026-06-25 | 293.68 | 298.35 | 290.07 | 293.17 | -0.30% | 1,128,200 |
| 2026-06-24 | 290.95 | 303.46 | 288.85 | 294.06 | +2.04% | 1,299,600 |
| 2026-06-23 | 290.89 | 291.95 | 285.26 | 288.18 | +0.62% | 1,087,500 |
| 2026-06-22 | 278.42 | 286.67 | 278.17 | 286.41 | +2.99% | 1,420,600 |
| 2026-06-18 | 280.11 | 282.98 | 273.11 | 278.09 | -1.64% | 2,204,500 |
| 2026-06-17 | 281.31 | 288.00 | 277.78 | 282.72 | +0.29% | 1,322,200 |
| 2026-06-16 | 288.13 | 288.48 | 276.94 | 281.90 | -2.05% | 1,213,300 |
| 2026-06-15 | 282.92 | 288.11 | 281.36 | 287.80 | +1.75% | 1,118,500 |
| 2026-06-12 | 288.96 | 291.28 | 281.77 | 282.85 | -2.26% | 1,420,000 |
| 2026-06-11 | 290.70 | 292.98 | 285.22 | 289.39 | -0.63% | 1,061,500 |
| 2026-06-10 | 297.69 | 299.70 | 290.53 | 291.22 | -2.17% | 927,300 |
| 2026-06-09 | 297.31 | 302.85 | 293.97 | 297.69 | +1.89% | 1,259,800 |
| 2026-06-08 | 303.11 | 303.57 | 285.54 | 292.16 | -3.59% | 1,651,400 |
| 2026-06-05 | 306.34 | 306.73 | 300.50 | 303.05 | -0.19% | 1,004,400 |
| 2026-06-04 | 297.22 | 310.53 | 293.85 | 303.64 | +3.78% | 1,081,400 |
| 2026-06-03 | 284.48 | 293.16 | 283.10 | 292.58 | +2.26% | 988,800 |
| 2026-06-02 | 293.94 | 295.60 | 285.00 | 286.12 | -3.22% | 1,042,500 |
| 2026-06-01 | 299.51 | 303.98 | 295.13 | 295.63 | -2.10% | 1,186,000 |
| 2026-05-29 | 302.43 | 305.68 | 297.62 | 301.98 | -1.01% | 2,278,000 |
| 2026-05-28 | 293.00 | 305.98 | 291.84 | 305.06 | +3.19% | 1,020,700 |
| 2026-05-27 | 293.40 | 299.98 | 292.91 | 295.63 | +0.04% | 629,500 |
| 2026-05-26 | 299.00 | 301.09 | 294.26 | 295.50 | -0.66% | 649,700 |
| 2026-05-22 | 299.12 | 303.33 | 294.99 | 297.45 | -1.02% | 681,300 |
| 2026-05-21 | 296.64 | 301.43 | 293.00 | 300.51 | +0.68% | 650,200 |
| 2026-05-20 | 297.80 | 300.08 | 292.10 | 298.48 | +1.42% | 799,200 |
| 2026-05-19 | 289.00 | 294.93 | 284.38 | 294.30 | +2.81% | 769,900 |
| 2026-05-18 | 287.14 | 291.97 | 285.26 | 286.27 | -0.25% | 873,400 |
| 2026-05-15 | 294.78 | 298.00 | 286.76 | 286.98 | -2.20% | 1,149,400 |
| 2026-05-14 | 290.72 | 297.00 | 287.51 | 293.45 | +0.68% | 889,700 |
| 2026-05-13 | 290.70 | 298.38 | 288.56 | 291.48 | -0.19% | 975,800 |
| 2026-05-12 | 288.66 | 295.86 | 286.73 | 292.03 | +2.52% | 826,100 |
| 2026-05-11 | 294.15 | 296.37 | 284.28 | 284.84 | -3.46% | 1,287,600 |
| 2026-05-08 | 295.91 | 300.17 | 293.06 | 295.05 | -0.29% | 926,800 |
| 2026-05-07 | 300.55 | 303.46 | 293.78 | 295.91 | -2.34% | 1,144,000 |
| 2026-05-06 | 301.57 | 306.03 | 298.96 | 303.00 | +0.63% | 1,012,300 |
| 2026-05-05 | 297.81 | 302.67 | 295.02 | 301.11 | +1.07% | 823,900 |
| 2026-05-04 | 298.00 | 300.49 | 288.06 | 297.93 | +0.61% | 1,590,500 |
| 2026-05-01 | 308.76 | 311.88 | 295.79 | 296.11 | -4.32% | 1,132,900 |
| 2026-04-30 | 307.48 | 317.56 | 287.00 | 309.49 | +2.76% | 2,192,100 |
| 2026-04-29 | 300.48 | 304.22 | 294.06 | 301.19 | -0.30% | 1,569,600 |
| 2026-04-28 | 308.97 | 314.17 | 301.80 | 302.11 | -2.07% | 996,200 |
| 2026-04-27 | 303.87 | 314.74 | 303.70 | 308.51 | +0.97% | 1,093,400 |
| 2026-04-24 | 309.63 | 311.10 | 302.90 | 305.54 | -2.63% | 825,600 |
| 2026-04-23 | 313.59 | 315.83 | 310.79 | 313.79 | +1.03% | 588,300 |
| 2026-04-22 | 308.43 | 312.69 | 307.85 | 310.58 | +0.70% | 1,003,700 |
| 2026-04-21 | 307.32 | 310.50 | 301.63 | 308.43 | -0.81% | 1,510,800 |
| 2026-04-20 | 306.56 | 312.25 | 305.00 | 310.94 | +0.41% | 966,400 |
| 2026-04-17 | 326.09 | 326.53 | 306.00 | 309.66 | -3.27% | 1,495,100 |
| 2026-04-16 | 333.39 | 333.39 | 318.93 | 320.13 | -3.98% | 1,022,800 |
| 2026-04-15 | 341.63 | 342.23 | 331.02 | 333.39 | -1.77% | 799,100 |
| 2026-04-14 | 330.81 | 343.36 | 330.54 | 339.41 | +1.92% | 1,228,600 |
| 2026-04-13 | 320.66 | 333.56 | 319.00 | 333.00 | +3.38% | 967,600 |
| 2026-04-10 | 323.49 | 328.93 | 317.53 | 322.11 | +0.26% | 698,600 |
| 2026-04-09 | 325.67 | 326.90 | 318.77 | 321.28 | -1.82% | 1,119,200 |
| 2026-04-08 | 327.49 | 330.30 | 324.44 | 327.25 | +2.42% | 1,024,700 |
| 2026-04-07 | 319.48 | 322.35 | 313.54 | 319.52 | -3.28% | 1,305,100 |
| 2026-04-06 | 320.10 | 335.58 | 320.10 | 330.34 | +3.60% | 1,276,400 |
| 2026-04-02 | 323.03 | 325.49 | 315.90 | 318.85 | -3.01% | 872,500 |
| 2026-04-01 | 332.69 | 335.48 | 327.59 | 328.73 | -0.65% | 673,300 |
| 2026-03-31 | 319.06 | 332.48 | 318.37 | 330.87 | +4.68% | 1,352,300 |
| 2026-03-30 | 319.32 | 321.76 | 314.21 | 316.09 | -0.40% | 1,223,900 |
| 2026-03-27 | 327.10 | 329.69 | 316.85 | 317.36 | -3.29% | 815,900 |
| 2026-03-26 | 328.90 | 332.81 | 327.69 | 328.16 | -0.16% | 1,119,700 |
| 2026-03-25 | 313.34 | 329.48 | 311.71 | 328.70 | +6.70% | 1,139,600 |
| 2026-03-24 | 303.42 | 308.91 | 299.62 | 308.05 | +0.45% | 1,497,300 |
| 2026-03-23 | 320.77 | 323.23 | 304.38 | 306.66 | -1.77% | 1,378,700 |
| 2026-03-20 | 311.05 | 322.43 | 311.05 | 312.17 | +0.34% | 2,050,800 |
| 2026-03-19 | 316.42 | 317.61 | 309.73 | 311.10 | -1.18% | 663,600 |
| 2026-03-18 | 317.50 | 319.27 | 312.58 | 314.80 | -1.75% | 1,077,700 |
| 2026-03-17 | 319.63 | 326.96 | 317.53 | 320.42 | +0.47% | 1,796,900 |
| 2026-03-16 | 311.22 | 319.55 | 311.22 | 318.91 | +1.75% | 1,247,500 |
| 2026-03-13 | 319.00 | 319.50 | 309.92 | 313.41 | -1.20% | 829,276 |
| 2026-03-12 | 320.53 | 321.00 | 309.61 | 317.23 | -1.00% | 1,247,315 |
| 2026-03-11 | 322.00 | 323.71 | 317.75 | 320.43 | -0.60% | 906,626 |
| 2026-03-10 | 325.60 | 326.18 | 317.03 | 322.38 | -0.37% | 1,169,417 |
| 2026-03-09 | 317.25 | 323.68 | 313.12 | 323.59 | +0.91% | 1,081,127 |
| 2026-03-06 | 317.73 | 321.17 | 312.09 | 320.66 | +0.05% | 996,400 |
| 2026-03-05 | 323.69 | 328.28 | 319.51 | 320.51 | -2.07% | 1,215,100 |
| 2026-03-04 | 319.20 | 328.00 | 317.25 | 327.30 | +2.71% | 931,100 |
| 2026-03-03 | 321.37 | 324.06 | 315.20 | 318.65 | -1.97% | 947,600 |
| 2026-03-02 | 329.41 | 334.42 | 323.16 | 325.07 | -2.36% | 1,302,300 |
| 2026-02-27 | 331.24 | 334.80 | 328.39 | 332.92 | +0.51% | 1,569,800 |
| 2026-02-26 | 328.67 | 333.47 | 322.00 | 331.24 | +1.19% | 880,300 |
| 2026-02-25 | 332.76 | 334.42 | 325.24 | 327.36 | -1.65% | 751,700 |
| 2026-02-24 | 328.22 | 333.07 | 324.48 | 332.85 | +1.06% | 791,600 |
| 2026-02-23 | 335.73 | 341.39 | 326.76 | 329.35 | -2.03% | 792,000 |
| 2026-02-20 | 336.58 | 345.90 | 335.83 | 336.19 | -0.94% | 1,375,300 |
| 2026-02-19 | 332.24 | 339.61 | 326.33 | 339.37 | +2.01% | 1,152,700 |
| 2026-02-18 | 328.86 | 335.80 | 324.53 | 332.68 | +0.02% | 1,151,200 |
| 2026-02-17 | 316.80 | 336.21 | 315.63 | 332.61 | +5.79% | 1,516,400 |
| 2026-02-13 | 302.55 | 318.44 | 302.55 | 314.40 | +1.92% | 1,476,300 |
| 2026-02-12 | 314.42 | 315.51 | 298.00 | 308.48 | -4.28% | 2,897,400 |
| 2026-02-11 | 322.14 | 325.04 | 317.80 | 322.28 | -0.22% | 1,582,000 |
| 2026-02-10 | 322.68 | 325.98 | 317.89 | 322.98 | +0.93% | 1,865,600 |
| 2026-02-09 | 325.49 | 329.92 | 319.26 | 320.00 | -2.49% | 1,391,900 |
| 2026-02-06 | 331.61 | 340.07 | 326.51 | 328.16 | -0.93% | 1,476,700 |
| 2026-02-05 | 350.50 | 350.50 | 327.27 | 331.24 | -5.89% | 2,620,900 |
| 2026-02-04 | 354.00 | 355.49 | 347.08 | 351.96 | +0.05% | 1,779,400 |
| 2026-02-03 | 338.49 | 352.82 | 337.59 | 351.80 | +3.74% | 2,152,900 |
| 2026-02-02 | 337.42 | 342.33 | 333.00 | 339.11 | +0.31% | 1,911,100 |
| 2026-01-30 | 343.10 | 346.50 | 336.39 | 338.06 | -2.52% | 1,648,500 |
| 2026-01-29 | 349.37 | 350.34 | 345.01 | 346.79 | -0.80% | 1,681,900 |
| 2026-01-28 | 353.66 | 356.84 | 348.00 | 349.58 | -1.46% | 1,099,000 |
| 2026-01-27 | 361.55 | 368.07 | 354.69 | 354.75 | -1.83% | 988,100 |
| 2026-01-26 | 357.98 | 364.07 | 352.50 | 361.35 | +0.94% | 936,400 |
| 2026-01-23 | 368.20 | 371.33 | 356.72 | 357.98 | -3.25% | 1,636,800 |
| 2026-01-22 | 365.50 | 376.87 | 363.36 | 370.00 | +1.24% | 1,875,400 |
| 2026-01-21 | 353.01 | 366.00 | 351.55 | 365.46 | +2.79% | 1,523,500 |
| 2026-01-20 | 350.70 | 355.74 | 347.77 | 355.53 | -1.04% | 1,722,600 |
| 2026-01-16 | 362.29 | 367.20 | 355.46 | 359.27 | +0.00% | 1,527,400 |
| 2026-01-15 | 368.54 | 372.82 | 356.83 | 359.26 | -2.07% | 911,200 |
| 2026-01-14 | 369.95 | 371.71 | 359.95 | 366.86 | -0.84% | 1,250,000 |
| 2026-01-13 | 369.10 | 376.88 | 366.92 | 369.96 | -0.26% | 1,625,700 |
| 2026-01-12 | 377.82 | 378.61 | 353.52 | 370.91 | -6.87% | 3,808,000 |
| 2026-01-09 | 399.40 | 409.58 | 392.56 | 398.29 | -0.28% | 1,440,200 |
| 2026-01-08 | 420.18 | 425.19 | 393.48 | 399.40 | -5.47% | 1,400,700 |
| 2026-01-07 | 405.51 | 427.05 | 405.51 | 422.50 | +3.96% | 1,426,100 |
| 2026-01-06 | 396.23 | 409.18 | 384.42 | 406.40 | +2.15% | 1,612,900 |
| 2026-01-05 | 397.57 | 400.00 | 383.84 | 397.83 | -0.58% | 1,093,900 |
| 2026-01-02 | 399.34 | 407.22 | 396.08 | 400.17 | +0.63% | 730,500 |
| 2025-12-31 | 397.25 | 402.44 | 397.25 | 397.65 | +0.10% | 768,900 |
| 2025-12-30 | 394.81 | 398.40 | 393.64 | 397.25 | -0.39% | 504,800 |
| 2025-12-29 | 400.10 | 402.72 | 397.05 | 398.82 | -0.44% | 638,400 |
| 2025-12-26 | 404.58 | 404.58 | 397.31 | 400.59 | -0.02% | 401,500 |
| 2025-12-24 | 395.99 | 401.47 | 395.05 | 400.69 | +0.50% | 408,200 |
| 2025-12-23 | 404.72 | 407.43 | 395.99 | 398.70 | -2.21% | 792,300 |
| 2025-12-22 | 409.60 | 413.59 | 403.20 | 407.73 | +1.87% | 1,053,000 |
| 2025-12-19 | 399.11 | 408.15 | 395.97 | 400.23 | +1.06% | 12,576,500 |
| 2025-12-18 | 394.49 | 404.19 | 391.51 | 396.04 | +1.00% | 1,715,000 |
| 2025-12-17 | 394.18 | 400.24 | 389.00 | 392.10 | +0.24% | 1,041,500 |
| 2025-12-16 | 390.65 | 399.64 | 388.54 | 391.17 | -0.08% | 1,345,500 |
| 2025-12-15 | 394.22 | 402.33 | 390.00 | 391.50 | -1.52% | 1,483,300 |
| 2025-12-12 | 408.86 | 410.04 | 387.03 | 397.55 | -3.65% | 1,659,000 |
| 2025-12-11 | 403.36 | 414.22 | 402.22 | 412.63 | +2.02% | 1,284,800 |
| 2025-12-10 | 416.54 | 417.00 | 403.80 | 404.46 | -2.59% | 1,188,900 |
| 2025-12-09 | 430.45 | 433.31 | 412.31 | 415.21 | -3.44% | 1,610,500 |
| 2025-12-08 | 447.00 | 449.78 | 423.45 | 430.02 | -6.13% | 2,411,600 |
| 2025-12-05 | 468.29 | 473.50 | 455.32 | 458.12 | -1.55% | 627,300 |
| 2025-12-04 | 472.67 | 477.06 | 463.03 | 465.34 | -1.68% | 984,000 |
| 2025-12-03 | 466.49 | 479.79 | 460.41 | 473.29 | +1.80% | 1,092,900 |
| 2025-12-02 | 453.90 | 472.48 | 453.01 | 464.93 | +2.28% | 1,204,100 |
| 2025-12-01 | 450.00 | 462.93 | 448.27 | 454.56 | +0.74% | 1,070,600 |
| 2025-11-28 | 448.18 | 455.76 | 444.43 | 451.23 | +1.37% | 563,900 |
| 2025-11-26 | 432.87 | 447.69 | 430.27 | 445.12 | +3.56% | 908,200 |
| 2025-11-25 | 436.84 | 441.82 | 428.57 | 429.80 | -1.02% | 1,009,200 |
| 2025-11-24 | 439.46 | 444.67 | 420.30 | 434.23 | -0.49% | 1,750,400 |
| 2025-11-21 | 448.23 | 449.53 | 433.50 | 436.38 | -2.11% | 1,298,000 |
| 2025-11-20 | 463.32 | 467.73 | 445.34 | 445.79 | -3.25% | 787,600 |
| 2025-11-19 | 462.27 | 465.32 | 456.90 | 460.76 | -0.33% | 893,800 |
| 2025-11-18 | 458.15 | 469.11 | 456.27 | 462.30 | +0.38% | 668,600 |
| 2025-11-17 | 449.00 | 463.92 | 449.00 | 460.54 | +2.53% | 962,100 |
| 2025-11-14 | 453.87 | 461.96 | 448.28 | 449.16 | -1.06% | 968,500 |
| 2025-11-13 | 450.67 | 456.14 | 447.12 | 453.97 | +0.27% | 798,900 |
| 2025-11-12 | 450.63 | 459.27 | 446.71 | 452.74 | +0.17% | 937,700 |
| 2025-11-11 | 443.53 | 455.20 | 441.21 | 451.95 | +2.32% | 981,700 |
| 2025-11-10 | 445.00 | 449.68 | 440.93 | 441.70 | -0.23% | 739,000 |
| 2025-11-07 | 437.81 | 443.69 | 430.84 | 442.70 | +0.50% | 822,600 |
| 2025-11-06 | 431.78 | 445.50 | 429.00 | 440.49 | +1.36% | 700,500 |
| 2025-11-05 | 422.11 | 438.53 | 417.00 | 434.56 | +2.62% | 974,500 |
| 2025-11-04 | 429.90 | 431.50 | 421.83 | 423.47 | -2.44% | 1,170,100 |
| 2025-11-03 | 454.58 | 457.26 | 429.60 | 434.07 | -4.82% | 1,556,500 |
| 2025-10-31 | 449.00 | 459.77 | 441.22 | 456.04 | +1.44% | 1,817,600 |
| 2025-10-30 | 450.00 | 472.36 | 436.51 | 449.56 | -6.65% | 2,313,900 |
| 2025-10-29 | 475.19 | 482.73 | 467.09 | 481.59 | +1.19% | 1,360,100 |
| 2025-10-28 | 476.50 | 484.61 | 473.29 | 475.91 | -0.56% | 836,300 |
| 2025-10-27 | 465.56 | 485.36 | 465.55 | 478.58 | +3.27% | 1,174,500 |
| 2025-10-24 | 468.68 | 469.29 | 459.38 | 463.43 | -0.12% | 771,302 |
| 2025-10-23 | 464.71 | 468.86 | 456.90 | 464.00 | -0.19% | 683,376 |
| 2025-10-22 | 477.66 | 480.53 | 461.21 | 464.90 | -1.92% | 950,023 |
| 2025-10-21 | 488.42 | 490.05 | 471.40 | 474.00 | -3.51% | 826,254 |
| 2025-10-20 | 476.82 | 495.55 | 476.82 | 491.22 | +1.98% | 950,011 |
| 2025-10-17 | 481.65 | 492.62 | 476.44 | 481.67 | +0.12% | 1,029,195 |
| 2025-10-16 | 474.39 | 488.38 | 470.46 | 481.07 | +2.30% | 964,728 |
| 2025-10-15 | 469.19 | 485.28 | 467.50 | 470.27 | +0.19% | 1,475,359 |
| 2025-10-14 | 462.13 | 479.69 | 457.73 | 469.36 | +0.95% | 1,435,825 |
| 2025-10-13 | 456.13 | 473.65 | 453.82 | 464.95 | +0.98% | 1,579,240 |
| 2025-10-10 | 460.28 | 460.60 | 451.00 | 460.46 | +0.77% | 937,064 |
| 2025-10-09 | 451.00 | 459.57 | 448.83 | 456.95 | +1.39% | 1,051,960 |
| 2025-10-08 | 464.46 | 464.46 | 449.72 | 450.68 | -1.94% | 929,883 |
| 2025-10-07 | 456.94 | 462.63 | 448.95 | 459.58 | +1.68% | 791,895 |
| 2025-10-06 | 458.69 | 458.69 | 449.92 | 452.00 | -0.95% | 918,501 |
| 2025-10-03 | 465.00 | 465.00 | 448.47 | 456.35 | -1.01% | 969,089 |
| 2025-10-02 | 457.64 | 461.53 | 446.18 | 460.99 | +0.07% | 1,269,237 |
| 2025-10-01 | 456.00 | 467.42 | 453.31 | 460.65 | +1.02% | 1,370,050 |
| 2025-09-30 | 445.22 | 459.30 | 445.22 | 456.00 | +1.90% | 1,379,551 |
| 2025-09-29 | 448.00 | 451.63 | 446.30 | 447.49 | +0.24% | 719,079 |
| 2025-09-26 | 453.05 | 453.05 | 442.51 | 446.40 | -0.71% | 812,999 |
| 2025-09-25 | 457.03 | 459.00 | 446.42 | 449.58 | -1.92% | 685,313 |
| 2025-09-24 | 454.35 | 462.69 | 450.97 | 458.37 | +0.87% | 975,991 |
| 2025-09-23 | 452.83 | 457.47 | 450.50 | 454.41 | -0.98% | 1,024,608 |
| 2025-09-22 | 453.56 | 462.88 | 450.23 | 458.92 | +1.18% | 971,763 |
| 2025-09-19 | 457.68 | 457.68 | 450.72 | 453.56 | +0.31% | 1,713,315 |
| 2025-09-18 | 454.00 | 456.94 | 443.75 | 452.17 | +0.10% | 1,061,008 |
| 2025-09-17 | 455.76 | 463.88 | 450.70 | 451.73 | -2.06% | 1,445,600 |
| 2025-09-16 | 465.13 | 467.28 | 457.99 | 461.24 | +0.02% | 773,501 |
| 2025-09-15 | 464.80 | 466.24 | 454.51 | 461.14 | -1.02% | 910,067 |
| 2025-09-12 | 468.29 | 475.69 | 465.48 | 465.89 | -0.57% | 630,781 |
| 2025-09-11 | 474.34 | 474.34 | 465.16 | 468.58 | -0.16% | 1,005,306 |
| 2025-09-10 | 478.50 | 480.05 | 461.47 | 469.31 | -2.66% | 1,817,375 |
| 2025-09-09 | 461.12 | 484.21 | 455.30 | 482.13 | +5.96% | 3,217,762 |
| 2025-09-08 | 457.31 | 463.00 | 452.85 | 455.03 | +0.67% | 925,993 |
| 2025-09-05 | 453.45 | 455.28 | 444.65 | 452.00 | -0.34% | 751,500 |
| 2025-09-04 | 449.43 | 458.30 | 447.11 | 453.54 | +1.37% | 714,264 |
| 2025-09-03 | 444.77 | 456.18 | 442.73 | 447.43 | +0.10% | 1,301,079 |
| 2025-09-02 | 445.84 | 454.50 | 441.50 | 447.00 | +0.11% | 1,072,100 |
| 2025-08-29 | 452.22 | 453.96 | 444.79 | 446.51 | -1.29% | 827,600 |
| 2025-08-28 | 452.01 | 457.29 | 451.12 | 452.33 | -0.41% | 641,000 |
| 2025-08-27 | 449.05 | 455.45 | 447.63 | 454.18 | +0.66% | 906,700 |
| 2025-08-26 | 451.50 | 451.50 | 444.25 | 451.20 | +1.70% | 1,183,700 |
| 2025-08-25 | 453.37 | 458.75 | 442.38 | 443.64 | -2.36% | 1,200,000 |
| 2025-08-22 | 469.17 | 469.81 | 454.20 | 454.38 | -2.82% | 1,075,500 |
| 2025-08-21 | 459.62 | 467.71 | 454.68 | 467.55 | +2.02% | 760,100 |
| 2025-08-20 | 459.34 | 466.31 | 456.06 | 458.31 | +0.01% | 1,223,500 |
| 2025-08-19 | 457.00 | 462.88 | 450.88 | 458.28 | +0.31% | 1,322,100 |
| 2025-08-18 | 450.00 | 457.92 | 447.10 | 456.87 | +1.77% | 1,608,800 |
| 2025-08-15 | 440.66 | 449.52 | 438.22 | 448.91 | +1.40% | 713,400 |
| 2025-08-14 | 433.59 | 443.98 | 428.99 | 442.73 | +2.36% | 1,263,500 |
| 2025-08-13 | 428.43 | 438.23 | 421.81 | 432.52 | +0.60% | 2,094,400 |
| 2025-08-12 | 434.58 | 437.00 | 428.30 | 429.93 | -1.17% | 1,507,700 |
| 2025-08-11 | 433.65 | 445.20 | 426.19 | 435.00 | -0.90% | 988,600 |
Most recent 250 sessions, newest first.
Seasonal returns
Best month historically: Jun (+17.64%). Worst month: Feb (-10.11%). Based on 5 years of daily data (2022–2026).
FAQ · from the current price data · as of 2026-08-07
Quick answers
What is Alnylam Pharmaceuticals Inc's (ALNY) latest close?
219.20 on 2026-08-07, from the Closelook data lake's daily price record.
What is ALNY's 52-week high and low?
495.55 high and 197.81 low over the trailing 52 weeks, as of 2026-08-07.
What is Alnylam Pharmaceuticals Inc's strongest and weakest month historically?
Historically, ALNY's strongest calendar month has been Jun (average +17.64%) and its weakest Feb (average -10.11%), based on 5 years of daily data (2022–2026).
How many years of seasonality does this cover?
5 years (2022–2026), computed from 965 daily bars in the Closelook data lake.