SENIOR - 15 Year Stock Price History | SNIRF

Historical daily share price chart and data for SENIOR since 2011 adjusted for splits and dividends. The latest closing stock price for SENIOR as of September 11, 2026 is 3.75.
  • The all-time high SENIOR stock closing price was 4.21 on April 28, 2016.
  • The SENIOR 52-week high stock price is 4.25, which is 13.3% above the current share price.
  • The SENIOR 52-week low stock price is 1.90, which is 49.3% below the current share price.
  • The average SENIOR stock price for the last 52 weeks is 3.30.
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SENIOR Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2026 3.5720 2.5800 4.1682 2.5605 3.7500 46.46%
2025 2.2930 1.9221 2.7075 1.9221 2.5605 33.21%
2024 1.8741 1.8674 2.1110 1.6326 1.9221 2.93%
2023 1.8133 1.2794 2.2173 1.2794 1.8674 45.96%
2022 1.4837 2.2960 2.2960 1.2794 1.2794 -44.28%
2021 1.5492 0.5406 2.2960 0.5406 2.2960 324.71%
2020 0.9465 1.9946 1.9946 0.5406 0.5406 -72.90%
2019 2.5780 3.5946 3.5946 1.9946 1.9946 -44.51%
2018 3.2565 2.9885 3.5946 2.8833 3.5946 20.28%
2017 2.2636 1.8602 3.0192 1.8602 2.9885 60.65%
2016 3.0108 4.1598 4.2069 1.8602 1.8602 -55.28%
2015 3.8516 3.0799 4.1598 3.0799 4.1598 35.06%
2014 3.5267 3.2563 3.8659 3.0799 3.0799 -5.42%
2013 3.0882 2.7330 3.2563 2.7330 3.2563 34.64%
2012 2.3154 2.0475 2.4934 2.0475 2.4185 53.28%
Sector Industry Market Cap Revenue
Construction Engineering - Research & Development Services $1.573B $0.973B
Senior PLC provides engineering solutions. The Company designs, manufactures and markets technology components and systems for the equipment producers primarily in the aerospace, defence, land vehicle and energy markets. Its operating segment consists of Aerospace and Flexonics. Senior PLC is based in Rickmansworth, the United Kingdom.
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