SMCI names former Western Digital CFO Mark Long as finance chief
SSuper Micro Computer appointed Mark Long as chief financial officer after David Weigand left the role, according to an October 15 8-K. The change puts a former Western Digital finance chief in charge as SMCI manages rapid growth and relatively thin margins.
SSMCI−1.93%1D close3M · CLOSING PRICES2026-10-15 CLOSE
The story
Super Micro Computer said its board appointed Mark Long as chief financial officer effective October 14, with David Weigand ceasing to serve in the role. The company disclosed the change in an 8-K filed October 15 under Item 5.02; Long previously served as Western Digital’s CFO from 2016 to 2019 and later as a principal of Prime Impact Capital.
The filing comes as SMCI reports fiscal-year revenue of $39.1 billion for the year ended June 30, 2026, up 77.8% year over year. Against that scale, the company’s disclosed 10.8% gross margin and 5.7% net margin leave finance and operating execution important to the next reporting cycle.
Long’s employment letter sets annual base salary at $725,000, a $500,000 sign-on bonus and a guaranteed annual cash bonus of $500,000. Subject to Compensation Committee approval, he is also expected to receive 120,000 restricted stock units and an option for 150,000 shares, both vesting over four years.
The filing gives no reason for Weigand’s departure and does not describe a dispute or other transition issue. Long’s appointment is effective immediately, but the company has not attached a forward financial outlook to the personnel change.
The next test is SMCI’s next financial update: investors will have to assess whether the new finance leadership is accompanied by changes in reporting, controls or guidance. The filing’s compensation terms and Long’s prior public-company experience provide the concrete details, while the rationale for the transition remains an open question.
Our take
1 / 7
Our read · Oct 15
SMCI appointed former Western Digital CFO Mark Long after David Weigand left the role.
Why
The appointment adds an experienced public-company finance executive as SMCI scales a $39.1B revenue base, but the filing gives no reason for the transition or accompanying change in guidance. Thin 5.7% net margins make execution and reporting important, while the absence of a dated next event keeps the read non-directional.
What could change this view
The read breaks if the next filing shows no transition disruption and preserves operating execution, or if a later disclosure explains the change as routine without financial implications.
▲ The case it holds
Long’s former Western Digital CFO role supplies relevant large-company finance experience for SMCI’s 77.8% revenue growth and expansion demands.
▼ The case it breaks
The filing offers no explanation for Weigand’s departure, leaving an abrupt CFO transition as an uncertainty for a business operating at a 5.7% net margin.
Prices: 1D EOD · OCT 15 CLOSE, licensed end-of-day data.
Source: SEC EDGAR · Published here THU, OCT 15 · 12:00 PM ET · the only report in this record · How this is decided →
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