X4 Pharmaceuticals Stock Price History
NASDAQ: XFORHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
2.91+0.12 (+4.30%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
XFOR price history at a glance
The price history for X4 Pharmaceuticals (XFOR) on this page begins on November 13, 2017, when the stock closed at $2,507.40; it most recently closed at $2.91 on October 5, 2026. The highest price in this record is $5,164.92, reached on March 12, 2018; the latest close is 99.9% below that peak. Across the 8 complete calendar years in the table, XFOR finished higher in 0 and lower in 8. Its best year was 2024 (-11.6%) and its worst was 2025 (-82.5%).
Over roughly 9 years the share price changed -99.9%, a -53.2% compound annual price return (excluding dividends). In the last 12 months alone, XFOR has lost 15.2%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2017
- $5,164.92
- Date of high
- Mar 12, 2018
- Low since 2017
- $1.35
- Date of low
- Aug 11, 2025
- 52-week high
- $4.83
- 52-week low
- $2.70
- IPO year
- 2017
- Last close
- $2.91
XFOR returns
1 week
+2.83%
1 month
-19.17%
3 months
-34.01%
6 months
-29.02%
Year to date
-27.25%
1 year
-15.16%
3 years
-89.11%
5 years
-98.15%
XFOR price return, excluding dividends.
XFOR annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 2.91 | -25.19% |
| 2025 | 3.89 | -82.52% |
| 2024 | 22.26 | -11.56% |
| 2023 | 25.17 | -15.51% |
| 2022 | 29.79 | -56.64% |
| 2021 | 68.70 | -64.39% |
| 2020 | 192.90 | -40.52% |
| 2019 | 324.30 | -46.85% |
| 2018 | 610.20 | -73.43% |
| 2017* | 2,296.80 | -8.40% |
* Partial year: the record begins after the start of 2017; return measured from the first available close.
2026 return is year to date.
XFOR daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 2.83 | 2.96 | 2.82 | 2.91 | +4.30% | |
| 2.77 | 2.81 | 2.70 | 2.79 | -0.71% | |
| 2.74 | 2.86 | 2.71 | 2.81 | +1.44% | |
| 2.90 | 2.90 | 2.70 | 2.77 | -4.48% | |
| 2.88 | 2.94 | 2.73 | 2.90 | +2.47% | |
| 2.86 | 2.86 | 2.75 | 2.83 | 0.00% | |
| 2.89 | 2.95 | 2.82 | 2.83 | -2.41% | |
| 2.93 | 2.94 | 2.85 | 2.90 | 0.00% | |
| 3.01 | 3.06 | 2.90 | 2.90 | -3.81% | |
| 3.00 | 3.04 | 2.81 | 3.02 | +0.17% | |
| 2.98 | 3.08 | 2.97 | 3.01 | +0.33% | |
| 3.10 | 3.10 | 2.96 | 3.00 | -3.54% | |
| 3.41 | 3.42 | 3.04 | 3.11 | -9.33% | |
| 3.52 | 3.57 | 3.40 | 3.43 | -1.86% | |
| 3.58 | 3.58 | 3.46 | 3.50 | -2.37% | |
| 3.48 | 3.64 | 3.48 | 3.58 | +2.29% | |
| 3.56 | 3.59 | 3.41 | 3.50 | -0.28% | |
| 3.63 | 3.65 | 3.36 | 3.51 | -3.04% | |
| 3.60 | 3.64 | 3.31 | 3.62 | 0.00% | |
| 3.51 | 3.71 | 3.47 | 3.62 | +3.43% | |
| 3.44 | 3.55 | 3.24 | 3.50 | +2.94% | |
| 3.60 | 3.68 | 3.31 | 3.40 | -5.56% | |
| 3.50 | 3.67 | 3.45 | 3.60 | +2.71% | |
| 4.00 | 4.13 | 3.19 | 3.51 | -13.24% | |
| 4.01 | 4.08 | 4.00 | 4.04 | 0.00% | |
| 4.06 | 4.07 | 3.99 | 4.04 | 0.00% | |
| 4.10 | 4.17 | 4.02 | 4.04 | -0.74% | |
| 3.97 | 4.11 | 3.97 | 4.07 | +0.74% | |
| 4.02 | 4.10 | 4.00 | 4.04 | 0.00% | |
| 4.22 | 4.23 | 4.00 | 4.04 | -4.49% | |
| 4.18 | 4.39 | 4.15 | 4.23 | +1.44% | |
| 4.16 | 4.23 | 4.08 | 4.17 | +0.24% | |
| 4.05 | 4.18 | 4.00 | 4.16 | +2.72% | |
| 4.03 | 4.10 | 3.94 | 4.05 | +0.25% | |
| 4.05 | 4.18 | 4.01 | 4.04 | +0.25% | |
| 4.12 | 4.22 | 3.99 | 4.03 | -3.12% | |
| 4.25 | 4.35 | 4.14 | 4.16 | -1.19% | |
| 4.27 | 4.32 | 4.15 | 4.21 | -2.09% | |
| 4.20 | 4.34 | 4.13 | 4.30 | +1.90% | |
| 4.26 | 4.33 | 4.05 | 4.22 | -1.63% | |
| 4.28 | 4.46 | 4.19 | 4.29 | 0.00% | |
| 4.29 | 4.55 | 4.25 | 4.29 | +0.23% | |
| 4.19 | 4.43 | 4.13 | 4.28 | +0.71% | |
| 4.60 | 4.63 | 4.21 | 4.25 | -8.41% | |
| 4.26 | 4.82 | 4.22 | 4.64 | +11.27% | |
| 4.15 | 4.26 | 4.07 | 4.17 | +0.48% | |
| 4.26 | 4.28 | 4.08 | 4.15 | -3.26% | |
| 4.10 | 4.33 | 4.10 | 4.29 | +4.89% | |
| 4.01 | 4.10 | 3.97 | 4.09 | +2.76% | |
| 4.00 | 4.05 | 3.87 | 3.98 | -0.50% | |
| 3.96 | 4.23 | 3.96 | 4.00 | 0.00% | |
| 3.93 | 4.07 | 3.88 | 4.00 | +1.78% | |
| 3.95 | 3.96 | 3.71 | 3.93 | -0.25% | |
| 3.86 | 4.00 | 3.83 | 3.94 | +2.34% | |
| 4.00 | 4.00 | 3.78 | 3.85 | -3.51% | |
| 3.66 | 4.01 | 3.58 | 3.99 | +7.98% | |
| 3.67 | 3.77 | 3.56 | 3.70 | +0.14% | |
| 3.68 | 3.76 | 3.63 | 3.69 | +0.27% | |
| 3.84 | 3.89 | 3.61 | 3.68 | -3.66% | |
| 3.73 | 3.85 | 3.70 | 3.82 | -0.26% | |
| 3.88 | 3.88 | 3.74 | 3.83 | -1.79% | |
| 4.03 | 4.05 | 3.78 | 3.90 | -2.99% | |
| 4.02 | 4.18 | 3.97 | 4.02 | -0.74% | |
| 4.42 | 4.48 | 4.02 | 4.05 | -8.16% | |
| 4.21 | 4.44 | 3.91 | 4.41 | +11.36% | |
| 3.95 | 4.02 | 3.87 | 3.96 | 0.00% | |
| 3.87 | 3.98 | 3.84 | 3.96 | +0.51% | |
| 4.03 | 4.09 | 3.86 | 3.94 | -2.23% | |
| 4.14 | 4.17 | 3.99 | 4.03 | -2.42% | |
| 4.15 | 4.31 | 4.08 | 4.13 | +1.10% | |
| 4.64 | 4.70 | 4.06 | 4.09 | -12.53% | |
| 4.23 | 4.70 | 4.20 | 4.67 | +10.40% | |
| 4.06 | 4.25 | 4.00 | 4.23 | +5.22% | |
| 3.98 | 4.24 | 3.98 | 4.02 | +0.75% | |
| 4.13 | 4.22 | 3.92 | 3.99 | -2.44% | |
| 4.05 | 4.17 | 4.00 | 4.09 | +2.25% | |
| 4.06 | 4.22 | 3.99 | 4.00 | -2.91% | |
| 4.22 | 4.43 | 4.11 | 4.12 | -2.37% | |
| 4.03 | 4.28 | 4.02 | 4.22 | +4.20% | |
| 4.06 | 4.11 | 3.99 | 4.05 | +0.25% | |
| 4.10 | 4.15 | 3.99 | 4.04 | -0.98% | |
| 4.03 | 4.12 | 4.00 | 4.08 | +2.00% | |
| 3.93 | 4.02 | 3.90 | 4.00 | +3.09% | |
| 3.71 | 3.89 | 3.67 | 3.88 | +4.02% | |
| 3.84 | 4.00 | 3.72 | 3.73 | -3.12% | |
| 3.71 | 3.95 | 3.71 | 3.85 | +3.77% | |
| 3.91 | 3.95 | 3.66 | 3.71 | -3.13% | |
| 4.00 | 4.02 | 3.76 | 3.83 | -4.49% | |
| 3.95 | 4.17 | 3.95 | 4.01 | +1.01% | |
| 4.04 | 4.10 | 3.97 | 3.97 | -1.73% | |
| 4.25 | 4.25 | 4.01 | 4.04 | -1.70% | |
| 4.24 | 4.33 | 4.10 | 4.11 | -4.64% | |
| 4.12 | 4.36 | 4.05 | 4.31 | +4.11% | |
| 4.01 | 4.18 | 3.99 | 4.14 | +2.73% | |
| 3.98 | 4.16 | 3.98 | 4.03 | +0.75% | |
| 4.07 | 4.15 | 3.97 | 4.00 | -0.99% | |
| 4.05 | 4.20 | 4.00 | 4.04 | 0.00% | |
| 3.71 | 4.07 | 3.71 | 4.04 | +7.16% | |
| 3.65 | 3.85 | 3.58 | 3.77 | +3.57% | |
| 3.67 | 3.68 | 3.56 | 3.64 | -1.09% | |
| 3.99 | 3.99 | 3.58 | 3.68 | -6.60% | |
| 3.97 | 4.06 | 3.86 | 3.94 | -1.50% | |
| 4.20 | 4.21 | 3.97 | 4.00 | -5.44% | |
| 4.32 | 4.37 | 4.21 | 4.23 | -2.53% | |
| 4.48 | 4.50 | 4.20 | 4.34 | -3.56% | |
| 4.37 | 4.60 | 4.37 | 4.50 | +1.58% | |
| 4.35 | 4.56 | 4.30 | 4.43 | +3.26% | |
| 4.22 | 4.38 | 4.19 | 4.29 | -2.05% | |
| 4.21 | 4.50 | 4.13 | 4.38 | +4.29% | |
| 4.23 | 4.33 | 4.11 | 4.20 | -0.24% | |
| 4.15 | 4.31 | 4.13 | 4.21 | +0.48% | |
| 4.05 | 4.24 | 4.05 | 4.19 | +2.95% | |
| 4.13 | 4.16 | 4.00 | 4.07 | -0.73% | |
| 4.20 | 4.21 | 3.97 | 4.10 | -0.49% | |
| 4.16 | 4.28 | 4.03 | 4.12 | -2.14% | |
| 4.08 | 4.33 | 4.08 | 4.21 | +2.43% | |
| 4.20 | 4.28 | 4.04 | 4.11 | -3.97% | |
| 4.40 | 4.66 | 4.24 | 4.28 | -3.17% | |
| 4.20 | 4.45 | 4.12 | 4.42 | +6.00% | |
| 4.23 | 4.26 | 4.12 | 4.17 | -0.48% | |
| 4.23 | 4.31 | 4.15 | 4.19 | -2.33% | |
| 4.19 | 4.38 | 4.19 | 4.29 | +3.62% | |
| 4.30 | 4.35 | 4.06 | 4.14 | -4.39% | |
| 4.18 | 4.35 | 4.18 | 4.33 | +3.10% | |
| 4.14 | 4.34 | 4.14 | 4.20 | +1.69% | |
| 4.10 | 4.23 | 4.05 | 4.13 | +0.73% | |
| 4.06 | 4.13 | 3.99 | 4.10 | +0.74% | |
| 4.02 | 4.16 | 3.99 | 4.07 | +0.49% | |
| 3.85 | 4.13 | 3.79 | 4.05 | +8.58% | |
| 4.01 | 4.07 | 3.70 | 3.73 | -8.35% | |
| 4.24 | 4.34 | 4.07 | 4.07 | -4.01% | |
| 4.23 | 4.44 | 4.17 | 4.24 | -2.53% | |
| 4.13 | 4.47 | 4.13 | 4.35 | +5.33% | |
| 3.97 | 4.24 | 3.97 | 4.13 | +3.51% | |
| 3.98 | 4.27 | 3.89 | 3.99 | -1.24% | |
| 4.31 | 4.35 | 4.03 | 4.04 | -6.26% | |
| 4.08 | 4.51 | 3.99 | 4.31 | +5.38% | |
| 3.85 | 4.17 | 3.85 | 4.09 | +7.07% | |
| 4.07 | 4.07 | 3.81 | 3.82 | -6.14% | |
| 4.34 | 4.36 | 4.00 | 4.07 | -4.91% | |
| 4.14 | 4.50 | 4.10 | 4.28 | +2.64% | |
| 4.01 | 4.18 | 3.92 | 4.17 | +2.96% | |
| 4.16 | 4.42 | 3.98 | 4.05 | -4.26% | |
| 3.75 | 4.23 | 3.63 | 4.23 | +18.82% | |
| 3.64 | 3.70 | 3.53 | 3.56 | -3.52% | |
| 3.88 | 4.05 | 3.68 | 3.69 | -4.90% | |
| 4.27 | 4.27 | 3.87 | 3.88 | -10.39% | |
| 4.63 | 4.67 | 4.31 | 4.33 | -7.08% | |
| 4.21 | 4.83 | 4.21 | 4.66 | +12.29% | |
| 3.75 | 4.16 | 3.70 | 4.15 | +10.37% | |
| 3.65 | 3.86 | 3.65 | 3.76 | +1.62% | |
| 3.51 | 3.71 | 3.42 | 3.70 | +5.71% | |
| 3.30 | 3.53 | 3.30 | 3.50 | +5.11% | |
| 3.37 | 3.45 | 3.25 | 3.33 | -2.06% | |
| 3.32 | 3.44 | 3.24 | 3.40 | -1.16% | |
| 3.25 | 3.44 | 3.20 | 3.44 | +5.85% | |
| 3.43 | 3.53 | 3.21 | 3.25 | -5.52% | |
| 3.39 | 3.56 | 3.39 | 3.44 | +1.47% | |
| 3.17 | 3.43 | 3.14 | 3.39 | +7.28% | |
| 3.12 | 3.25 | 3.10 | 3.16 | 0.00% | |
| 3.05 | 3.19 | 3.01 | 3.16 | +1.94% | |
| 2.97 | 3.15 | 2.96 | 3.10 | +3.68% | |
| 3.10 | 3.12 | 2.83 | 2.99 | -3.55% | |
| 3.40 | 3.42 | 3.09 | 3.10 | -9.09% | |
| 3.39 | 3.51 | 3.38 | 3.41 | +1.19% | |
| 3.49 | 3.49 | 3.14 | 3.37 | -1.75% | |
| 3.69 | 3.78 | 3.43 | 3.43 | -7.55% | |
| 3.53 | 3.76 | 3.52 | 3.71 | +4.51% | |
| 3.57 | 3.63 | 3.53 | 3.55 | -0.28% | |
| 3.70 | 3.82 | 3.52 | 3.56 | -2.73% | |
| 3.78 | 3.83 | 3.65 | 3.66 | -4.94% | |
| 3.99 | 4.00 | 3.75 | 3.85 | -3.75% | |
| 3.98 | 4.00 | 3.80 | 4.00 | +0.50% | |
| 3.66 | 4.00 | 3.66 | 3.98 | +7.57% | |
| 3.61 | 3.76 | 3.61 | 3.70 | +0.27% | |
| 3.62 | 3.71 | 3.59 | 3.69 | +1.93% | |
| 3.70 | 3.74 | 3.59 | 3.62 | -2.16% | |
| 3.59 | 3.72 | 3.58 | 3.70 | +1.93% | |
| 3.69 | 3.74 | 3.60 | 3.63 | -1.89% | |
| 3.74 | 3.79 | 3.68 | 3.70 | -1.60% | |
| 3.78 | 3.89 | 3.72 | 3.76 | +0.27% | |
| 3.66 | 3.75 | 3.60 | 3.75 | +2.18% | |
| 3.62 | 3.78 | 3.57 | 3.67 | -0.81% | |
| 3.62 | 3.76 | 3.59 | 3.70 | +2.21% | |
| 3.77 | 3.82 | 3.56 | 3.62 | -3.98% | |
| 3.87 | 3.92 | 3.77 | 3.77 | -2.58% | |
| 3.98 | 4.00 | 3.84 | 3.87 | -0.77% | |
| 4.00 | 4.00 | 3.73 | 3.90 | -2.50% | |
| 4.14 | 4.24 | 3.98 | 4.00 | -0.99% | |
| 3.97 | 4.04 | 3.86 | 4.04 | +1.00% | |
| 3.99 | 4.07 | 3.96 | 4.00 | +1.01% | |
| 3.82 | 3.99 | 3.79 | 3.96 | +3.13% | |
| 3.90 | 3.94 | 3.74 | 3.84 | -1.29% | |
| 4.08 | 4.08 | 3.83 | 3.89 | -2.75% | |
| 4.17 | 4.21 | 3.93 | 4.00 | -3.85% | |
| 4.28 | 4.30 | 4.08 | 4.16 | -3.26% | |
| 4.43 | 4.45 | 4.22 | 4.30 | -4.44% | |
| 4.43 | 4.51 | 4.24 | 4.50 | +1.81% | |
| 4.12 | 4.56 | 4.07 | 4.42 | +7.28% | |
| 4.08 | 4.27 | 4.01 | 4.12 | +0.49% | |
| 3.64 | 4.22 | 3.62 | 4.10 | +13.89% | |
| 3.66 | 3.79 | 3.50 | 3.60 | -1.64% | |
| 3.60 | 3.83 | 3.60 | 3.66 | +4.27% | |
| 3.72 | 3.86 | 3.48 | 3.51 | -5.39% | |
| 3.73 | 3.86 | 3.69 | 3.71 | -1.33% | |
| 3.94 | 4.00 | 3.76 | 3.76 | -3.84% | |
| 3.87 | 4.08 | 3.77 | 3.91 | +0.77% | |
| 3.89 | 4.00 | 3.84 | 3.88 | -0.26% | |
| 3.65 | 3.93 | 3.54 | 3.89 | +6.87% | |
| 3.80 | 3.85 | 3.53 | 3.64 | -5.21% | |
| 3.95 | 3.95 | 3.70 | 3.84 | -3.52% | |
| 3.94 | 4.07 | 3.76 | 3.98 | +4.74% | |
| 3.25 | 3.81 | 3.25 | 3.80 | +16.92% | |
| 3.17 | 3.32 | 3.05 | 3.25 | +1.72% | |
| 3.17 | 3.32 | 3.13 | 3.20 | +1.43% | |
| 3.64 | 3.65 | 3.13 | 3.15 | -13.46% | |
| 3.68 | 3.82 | 3.62 | 3.64 | 0.00% | |
| 3.81 | 3.86 | 3.64 | 3.64 | -4.21% | |
| 3.83 | 3.90 | 3.78 | 3.80 | 0.00% | |
| 3.74 | 3.84 | 3.68 | 3.80 | +1.33% | |
| 3.73 | 3.78 | 3.57 | 3.75 | +1.35% | |
| 3.71 | 3.85 | 3.57 | 3.70 | +1.37% | |
| 3.60 | 3.79 | 3.50 | 3.65 | +1.39% | |
| 3.63 | 3.66 | 3.50 | 3.60 | -1.64% | |
| 3.64 | 3.86 | 3.61 | 3.66 | 0.00% | |
| 3.62 | 3.73 | 3.61 | 3.66 | -1.88% | |
| 3.81 | 3.85 | 3.66 | 3.73 | -3.62% | |
| 3.53 | 3.89 | 3.50 | 3.87 | +9.63% | |
| 3.60 | 3.63 | 3.49 | 3.53 | -2.75% | |
| 3.71 | 3.86 | 3.60 | 3.63 | -2.16% | |
| 3.48 | 3.76 | 3.26 | 3.71 | +5.85% | |
| 3.62 | 3.69 | 3.43 | 3.51 | -1.27% | |
| 3.72 | 3.90 | 3.55 | 3.55 | -10.58% | |
| 4.00 | 4.12 | 3.94 | 3.97 | -2.93% | |
| 4.03 | 4.15 | 3.95 | 4.09 | +1.24% | |
| 3.99 | 4.11 | 3.91 | 4.04 | +1.25% | |
| 3.74 | 4.02 | 3.72 | 3.99 | +6.68% | |
| 3.82 | 3.89 | 3.72 | 3.74 | -1.84% | |
| 3.95 | 3.96 | 3.67 | 3.81 | +1.87% | |
| 3.73 | 3.97 | 3.66 | 3.74 | -1.58% | |
| 3.35 | 4.54 | 3.28 | 3.80 | +22.98% | |
| 3.09 | 3.19 | 3.05 | 3.09 | -0.32% | |
| 3.13 | 3.18 | 2.96 | 3.10 | -1.27% | |
| 3.15 | 3.20 | 3.07 | 3.14 | 0.00% | |
| 2.96 | 3.21 | 2.96 | 3.14 | +5.72% | |
| 2.97 | 2.99 | 2.89 | 2.97 | 0.00% | |
| 2.87 | 3.01 | 2.82 | 2.97 | +3.85% | |
| 3.00 | 3.06 | 2.80 | 2.86 | -3.70% | |
| 3.01 | 3.03 | 2.91 | 2.97 | -2.94% | |
| 3.11 | 3.19 | 3.03 | 3.06 | -0.97% | |
| 3.30 | 3.42 | 3.07 | 3.09 | -9.91% | |
| 3.35 | 3.50 | 3.26 | 3.43 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the XFOR chart for longer ranges.