X4 Pharmaceuticals, Inc. (XFOR)
NASDAQ: XFOR · Real-Time Price · USD
4.040
+0.010 (0.25%)
At close: Aug 21, 2026, 4:00 PM EDT
4.127
+0.087 (2.15%)
After-hours: Aug 21, 2026, 7:30 PM EDT
X4 Pharmaceuticals Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | 4.05 | 4.18 | 4.01 | 4.04 | 4.04 | 0.25% | 1,219,578 |
| Aug 20, 2026 | 4.12 | 4.22 | 3.99 | 4.03 | 4.03 | -3.12% | 560,380 |
| Aug 19, 2026 | 4.25 | 4.35 | 4.14 | 4.16 | 4.16 | -1.19% | 405,946 |
| Aug 18, 2026 | 4.27 | 4.32 | 4.15 | 4.21 | 4.21 | -2.09% | 362,084 |
| Aug 17, 2026 | 4.20 | 4.34 | 4.13 | 4.30 | 4.30 | 1.90% | 1,095,284 |
| Aug 14, 2026 | 4.26 | 4.33 | 4.05 | 4.22 | 4.22 | -1.63% | 840,520 |
| Aug 13, 2026 | 4.28 | 4.46 | 4.19 | 4.29 | 4.29 | - | 1,126,768 |
| Aug 12, 2026 | 4.29 | 4.55 | 4.25 | 4.29 | 4.29 | 0.23% | 1,040,772 |
| Aug 11, 2026 | 4.19 | 4.43 | 4.13 | 4.28 | 4.28 | 0.71% | 1,079,880 |
| Aug 10, 2026 | 4.60 | 4.63 | 4.21 | 4.25 | 4.25 | -8.41% | 632,713 |
| Aug 7, 2026 | 4.26 | 4.82 | 4.22 | 4.64 | 4.64 | 11.27% | 1,593,879 |
| Aug 6, 2026 | 4.15 | 4.26 | 4.07 | 4.17 | 4.17 | 0.48% | 372,824 |
| Aug 5, 2026 | 4.26 | 4.28 | 4.08 | 4.15 | 4.15 | -3.26% | 372,381 |
| Aug 4, 2026 | 4.10 | 4.33 | 4.10 | 4.29 | 4.29 | 4.89% | 604,731 |
| Aug 3, 2026 | 4.01 | 4.10 | 3.97 | 4.09 | 4.09 | 2.76% | 364,079 |
| Jul 31, 2026 | 4.00 | 4.05 | 3.87 | 3.98 | 3.98 | -0.50% | 415,501 |
| Jul 30, 2026 | 3.96 | 4.23 | 3.96 | 4.00 | 4.00 | - | 504,599 |
| Jul 29, 2026 | 3.93 | 4.07 | 3.88 | 4.00 | 4.00 | 1.78% | 875,614 |
| Jul 28, 2026 | 3.95 | 3.96 | 3.71 | 3.93 | 3.93 | -0.25% | 861,700 |
| Jul 27, 2026 | 3.86 | 4.00 | 3.83 | 3.94 | 3.94 | 2.34% | 360,034 |
| Jul 24, 2026 | 4.00 | 4.00 | 3.78 | 3.85 | 3.85 | -3.51% | 573,622 |
| Jul 23, 2026 | 3.66 | 4.01 | 3.58 | 3.99 | 3.99 | 7.98% | 579,989 |
| Jul 22, 2026 | 3.67 | 3.77 | 3.56 | 3.70 | 3.70 | 0.14% | 678,169 |
| Jul 21, 2026 | 3.68 | 3.76 | 3.63 | 3.69 | 3.69 | 0.27% | 430,203 |
| Jul 20, 2026 | 3.84 | 3.89 | 3.61 | 3.68 | 3.68 | -3.66% | 729,887 |
| Jul 17, 2026 | 3.73 | 3.85 | 3.70 | 3.82 | 3.82 | -0.26% | 461,940 |
| Jul 16, 2026 | 3.88 | 3.88 | 3.74 | 3.83 | 3.83 | -1.79% | 504,453 |
| Jul 15, 2026 | 4.03 | 4.05 | 3.78 | 3.90 | 3.90 | -2.99% | 539,464 |
| Jul 14, 2026 | 4.02 | 4.18 | 3.97 | 4.02 | 4.02 | -0.74% | 1,140,808 |
| Jul 13, 2026 | 4.42 | 4.48 | 4.02 | 4.05 | 4.05 | -8.16% | 642,327 |
| Jul 10, 2026 | 4.21 | 4.44 | 3.91 | 4.41 | 4.41 | 11.36% | 918,438 |
| Jul 9, 2026 | 3.95 | 4.02 | 3.87 | 3.96 | 3.96 | - | 447,293 |
| Jul 8, 2026 | 3.87 | 3.98 | 3.84 | 3.96 | 3.96 | 0.51% | 464,632 |
| Jul 7, 2026 | 4.03 | 4.09 | 3.86 | 3.94 | 3.94 | -2.23% | 528,246 |
| Jul 6, 2026 | 4.14 | 4.17 | 3.99 | 4.03 | 4.03 | -2.42% | 542,461 |
| Jul 2, 2026 | 4.15 | 4.31 | 4.08 | 4.13 | 4.13 | 1.10% | 678,995 |
| Jul 1, 2026 | 4.64 | 4.70 | 4.06 | 4.09 | 4.09 | -12.53% | 807,032 |
| Jun 30, 2026 | 4.23 | 4.70 | 4.20 | 4.67 | 4.67 | 10.40% | 1,104,537 |
| Jun 29, 2026 | 4.06 | 4.25 | 4.00 | 4.23 | 4.23 | 5.22% | 591,595 |
| Jun 26, 2026 | 3.98 | 4.24 | 3.98 | 4.02 | 4.02 | 0.75% | 10,479,698 |
| Jun 25, 2026 | 4.13 | 4.22 | 3.92 | 3.99 | 3.99 | -2.44% | 633,099 |
| Jun 24, 2026 | 4.05 | 4.17 | 4.00 | 4.09 | 4.09 | 2.25% | 686,392 |
| Jun 23, 2026 | 4.06 | 4.22 | 3.99 | 4.00 | 4.00 | -2.91% | 352,749 |
| Jun 22, 2026 | 4.22 | 4.43 | 4.11 | 4.12 | 4.12 | -2.37% | 438,105 |
| Jun 18, 2026 | 4.03 | 4.28 | 4.02 | 4.22 | 4.22 | 4.20% | 866,269 |
| Jun 17, 2026 | 4.06 | 4.11 | 3.99 | 4.05 | 4.05 | 0.25% | 403,777 |
| Jun 16, 2026 | 4.10 | 4.15 | 3.99 | 4.04 | 4.04 | -0.98% | 461,102 |
| Jun 15, 2026 | 4.03 | 4.12 | 4.00 | 4.08 | 4.08 | 2.00% | 511,668 |
| Jun 12, 2026 | 3.93 | 4.02 | 3.90 | 4.00 | 4.00 | 3.09% | 501,560 |
| Jun 11, 2026 | 3.71 | 3.89 | 3.67 | 3.88 | 3.88 | 4.02% | 471,521 |