Monolithic Power Systems annual shares outstanding
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Monolithic Power Systems Shares Outstanding History (MPWR)
Monolithic Power Systems reported 48.7M shares outstanding at the end of fiscal 2025.
View full Monolithic Power Systems company overviewMonolithic Power Systems annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | 48.7M | 886,000 | +1.85% |
| 2024 | 2024-12-31 | 47.8M | −205,000 | −0.43% |
| 2023 | 2023-12-31 | 48.0M | 921,000 | +1.96% |
| 2022 | 2022-12-31 | 47.1M | 851,000 | +1.84% |
| 2021 | 2021-12-31 | 46.3M | 989,000 | +2.18% |
| 2020 | 2020-12-31 | 45.3M | 1.7M | +3.79% |
| 2019 | 2019-12-31 | 43.6M | 1.1M | +2.61% |
| 2018 | 2018-12-31 | 42.5M | 891,000 | +2.14% |
| 2017 | 2017-12-31 | 41.6M | 821,000 | +2.01% |
| 2016 | 2016-12-31 | 40.8M | 1.1M | +2.78% |
| 2015 | 2015-12-31 | 39.7M | 857,000 | +2.21% |
| 2014 | 2014-12-31 | 38.8M | 541,000 | +1.41% |
| 2013 | 2013-12-31 | 38.3M | 2.6M | +7.34% |
| 2012 | 2012-12-31 | 35.7M | 1.8M | +5.46% |
| 2011 | 2011-12-31 | 33.8M | −1.2M | −3.53% |
| 2010 | 2010-12-31 | 35.1M | — | — |
Monolithic Power Systems quarterly shares outstanding
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| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | 49.1M | 1.3M | +2.61% |
| Q1 2026 | 2026-03-31 | 49.1M | 1.3M | +2.62% |
| Q4 2025 | 2025-12-31 | 48.7M | 886,000 | +1.85% |
| Q3 2025 | 2025-09-30 | 47.9M | −874,000 | −1.79% |
| Q2 2025 | 2025-06-30 | 47.9M | −806,000 | −1.66% |
| Q1 2025 | 2025-03-31 | 47.9M | −790,000 | −1.62% |
| Q4 2024 | 2024-12-31 | 47.8M | −205,000 | −0.43% |
| Q3 2024 | 2024-09-30 | 48.8M | 868,000 | +1.81% |
| Q2 2024 | 2024-06-30 | 48.7M | 1.1M | +2.28% |
| Q1 2024 | 2024-03-31 | 48.7M | 1.3M | +2.65% |
| Q4 2023 | 2023-12-31 | 48.0M | 921,000 | +1.96% |
| Q3 2023 | 2023-09-30 | 47.9M | 970,000 | +2.07% |
| Q2 2023 | 2023-06-30 | 47.6M | 824,000 | +1.76% |
| Q1 2023 | 2023-03-31 | 47.4M | 786,000 | +1.69% |
| Q4 2022 | 2022-12-31 | 47.1M | 851,000 | +1.84% |
| Q3 2022 | 2022-09-30 | 46.9M | 850,000 | +1.84% |
| Q2 2022 | 2022-06-30 | 46.8M | 870,000 | +1.89% |
| Q1 2022 | 2022-03-31 | 46.6M | 888,000 | +1.94% |
| Q4 2021 | 2021-12-31 | 46.3M | 989,000 | +2.18% |
| Q3 2021 | 2021-09-30 | 46.1M | 995,000 | +2.21% |
| Q2 2021 | 2021-06-30 | 45.9M | 1.0M | +2.24% |
| Q1 2021 | 2021-03-31 | 45.7M | 1.0M | +2.29% |
| Q4 2020 | 2020-12-31 | 45.3M | 1.7M | +3.79% |
| Q3 2020 | 2020-09-30 | 45.1M | 1.7M | +3.82% |
| Q2 2020 | 2020-06-30 | 44.9M | 1.7M | +3.88% |
| Q1 2020 | 2020-03-31 | 44.7M | 1.7M | +3.91% |
| Q4 2019 | 2019-12-31 | 43.6M | 1.1M | +2.61% |
| Q3 2019 | 2019-09-30 | 43.4M | 1.0M | +2.42% |
| Q2 2019 | 2019-06-30 | 43.2M | 949,000 | +2.24% |
| Q1 2019 | 2019-03-31 | 43.0M | 888,000 | +2.11% |
| Q4 2018 | 2018-12-31 | 42.5M | 891,000 | +2.14% |
| Q3 2018 | 2018-09-30 | 42.4M | 900,000 | +2.17% |
| Q2 2018 | 2018-06-30 | 42.3M | 919,000 | +2.22% |
| Q1 2018 | 2018-03-31 | 42.1M | 906,000 | +2.20% |
| Q4 2017 | 2017-12-31 | 41.6M | 821,000 | +2.01% |
| Q3 2017 | 2017-09-30 | 41.5M | 847,000 | +2.08% |
| Q2 2017 | 2017-06-30 | 41.4M | 886,000 | +2.19% |
| Q1 2017 | 2017-03-31 | 41.2M | 1.0M | +2.49% |
| Q4 2016 | 2016-12-31 | 40.8M | 1.1M | +2.78% |
| Q3 2016 | 2016-09-30 | 40.7M | 1.2M | +2.93% |
| Q2 2016 | 2016-06-30 | 40.5M | 863,000 | +2.18% |
| Q1 2016 | 2016-03-31 | 40.2M | 983,000 | +2.50% |
| Q4 2015 | 2015-12-31 | 39.7M | 857,000 | +2.21% |
| Q3 2015 | 2015-09-30 | 39.5M | 699,000 | +1.80% |
| Q2 2015 | 2015-06-30 | 39.6M | 843,000 | +2.17% |
| Q1 2015 | 2015-03-31 | 39.3M | 581,000 | +1.50% |
| Q4 2014 | 2014-12-31 | 38.8M | 541,000 | +1.41% |
| Q3 2014 | 2014-09-30 | 38.8M | 577,000 | +1.51% |
| Q2 2014 | 2014-06-30 | 38.8M | 1.4M | +3.85% |
| Q1 2014 | 2014-03-31 | 38.7M | 1.9M | +5.28% |
| Q4 2013 | 2013-12-31 | 38.3M | 2.6M | +7.34% |
| Q3 2013 | 2013-09-30 | 38.2M | 2.8M | +7.89% |
| Q2 2013 | 2013-06-30 | 37.3M | 2.5M | +7.22% |
| Q1 2013 | 2013-03-31 | 36.7M | 2.3M | +6.75% |
| Q4 2012 | 2012-12-31 | 35.7M | 1.8M | +5.46% |
| Q3 2012 | 2012-09-30 | 35.4M | 1.7M | +5.16% |
| Q2 2012 | 2012-06-30 | 34.8M | 1.4M | +4.05% |
| Q1 2012 | 2012-03-31 | 34.4M | — | — |
| Q4 2011 | 2011-12-31 | 33.8M | −1.2M | −3.53% |
| Q3 2011 | 2011-09-30 | 33.7M | — | — |
| Q2 2011 | 2011-06-30 | 33.5M | — | — |
| Q4 2010 | 2010-12-31 | 35.1M | — | — |
Monolithic Power Systems Share Buyback History
A share buyback, also called a stock repurchase, is when a company uses cash to buy its own shares. Monolithic Power Systems share buyback history shows the reported cash used for repurchases. Buybacks can reduce shares outstanding, but issuance, stock-based compensation, acquisitions, and stock splits can change the share count separately.
Monolithic Power Systems used $6.6M to repurchase common stock in fy 2025. Across the latest 5 reported fiscal years, total share repurchases were $646.5M. The latest reported quarter showed $1.9M of share repurchases.
| Fiscal year | Period ended | Share repurchases |
|---|---|---|
| 2025 | 2025-12-31 | $6.6M |
| 2024 | 2024-12-31 | $636.2M |
| 2023 | 2023-12-31 | $3.7M |
| 2022 | 2022-12-31 | $0 |
| 2021 | 2021-12-31 | $0 |
| 2015 | 2015-12-31 | $32.3M |
| 2014 | 2014-12-31 | $41.2M |
| 2013 | 2013-12-31 | $20.6M |
| 2011 | 2011-12-31 | $38.5M |
| 2010 | 2010-12-31 | $31.5M |
TickerStat uses SEC-reported cash payments for common-stock repurchases. The amounts describe capital returned through buybacks; they are not a forecast or a measure of the number of shares retired.
Monolithic Power Systems shares outstanding trends
Over the last five fiscal years, Monolithic Power Systems's shares outstanding moved from 45.3M to 48.7M, a change of 3.4M. The latest reported quarter, Q2 2026, shows 49.1M.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when a stock-split conversion ratio is reported directly or evidenced by a later filing’s restated historical share balance. After repeated reverse splits, an old period can represent less than one current-basis share; this is a split-adjusted equivalent, not a literal historical certificate count. Values remain as reported when no reliable split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Monolithic Power Systems source filings ↗Community posts
Monolithic Power’s data-center demand drives a sharp increase in quarterly sales
Monolithic Power Systems ($MPWR) generated third-quarter 2026 revenue of $1.20 billion, up 63% from a year earlier and 23% sequentially. Enterprise-data revenue increased 165% to $506.7 million, while communications revenue more than double ...
