Insider Trading November 10, 2026 07:16 PM

Silvaco Director Tewksbury Offloads $7,142 in Shares as Stock Rebounds

The Rule 10b5-1 sale came as the semiconductor software firm's stock climbed 28% over the past week, though it remains down 33% over six months.

By Derek Hwang
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SVCO

Ted L. Tewksbury III, a director at Silvaco Group, Inc. (NASDAQ:SVCO), sold 977 shares of common stock on November 9, 2026, for a total of $7,142, at prices between $7.20 and $7.44 per share. The transaction was executed under a Rule 10b5-1 trading plan adopted on May 12, 2026. On the same day, Tewksbury received 1,954 shares as part of an amendment to the company's non-employee director compensation plan, replacing the quarterly cash retainer for the third quarter of fiscal 2026. Following these transactions, he beneficially owns 19,120 shares. The sale occurred as Silvaco's stock surged 28% over the past week but remained down 33% over six months. The company, valued at $248 million, is scheduled to report earnings on November 13. In other recent news, Silvaco reported a wider-than-expected loss for the third quarter of 2026, though it achieved record bookings of $19.3 million and revenue of $16.3 million, which was below the guided midpoint due to some IP milestone revenue shifting into the fourth quarter. The company also noted stronger margins and significantly improved cash flow.

Silvaco Director Tewksbury Offloads $7,142 in Shares as Stock Rebounds
SVCO
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Key Points

  • Director Ted L. Tewksbury III sold 977 shares for $7,142 under a pre-arranged Rule 10b5-1 plan adopted in May 2026, a structure designed to remove discretion from insider trades.
  • The sale coincided with a 28% one-week rally in SVCO shares, though the stock remains down 33% over six months, underscoring the volatility in small-cap semiconductor software names.
  • Tewksbury received 1,954 shares via a director compensation plan amendment that replaced the Q3 fiscal 2026 cash retainer with stock, aligning pay with shareholder interests.
  • Silvaco reported record bookings of $19.3 million and revenue of $16.3 million in Q3 2026, with some IP milestone revenue shifting to Q4, a timing issue that affects the technology sector's revenue recognition patterns.

Silvaco Group, Inc. (NASDAQ:SVCO) director Ted L. Tewksbury III disposed of 977 shares of common stock on November 9, 2026, according to a recent filing. The shares were sold for a total value of $7,142, with transaction prices ranging from $7.20 to $7.44 per share.

The sale was carried out under a Rule 10b5-1 trading plan that Tewksbury adopted on May 12, 2026. Such plans allow company insiders to set predetermined schedules for buying or selling shares, providing a defense against allegations of trading on material nonpublic information.

The transaction occurred against a backdrop of sharp short-term momentum in Silvaco's stock. Shares surged 28% over the past week, yet they remain down 33% over the past six months. This divergence highlights the volatility that has characterized the semiconductor software company's equity performance.

On the same day as the sale, Tewksbury was awarded 1,954 shares of Silvaco common stock. The award carried a stated value of $0 and was granted as part of an amendment to the issuer's non-employee director compensation plan. Specifically, the award replaced the quarterly cash retainer that Tewksbury had earned for the third quarter of fiscal 2026 with an equivalent amount of common stock.

Following these transactions, Tewksbury beneficially owns 19,120 shares of Silvaco Group common stock.

Silvaco, which carries a market valuation of $248 million, is scheduled to report its earnings in two days, on November 13. Investors will be watching the results closely for further clarity on the company's financial trajectory.

In other recent developments, Silvaco reported a wider-than-expected loss for the third quarter of 2026. Despite the bottom-line shortfall, the company achieved record bookings of $19.3 million, marking its best performance this year. Revenue for the quarter reached $16.3 million, which fell below the guided midpoint because some IP milestone revenue was shifted into the fourth quarter. The company also noted stronger margins and significantly improved cash flow during the period. These operational trends may be of interest to investors assessing the company's outlook.

Risks

  • The article notes that Silvaco's Q3 2026 loss was wider than expected and revenue fell below the guided midpoint due to IP milestone revenue shifting to Q4, which could pressure the stock if the timing does not materialize as anticipated in the semiconductor software sector.
  • Insider selling, even under a 10b5-1 plan, can be interpreted by some investors as a signal of reduced confidence, potentially weighing on sentiment in the small-cap tech space.
  • The stock's 33% six-month decline and recent 28% weekly surge indicate high volatility, which may deter risk-averse investors and complicate valuation assessments for the company and its peers.

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