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EdgarHawk

Aaron Tachibana

CFO AND COO

Officer

Latest: CFO AND COO selling · June 2026

2 filings analyzed · 1 company · Latest 2026-06-26

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Companies

Company Buys Sells Direction
Personalis, Inc. PSNL 0 2 Net selling

Activity

June 2026
2026-06-26 Personalis, Inc. PSNL 10b5-1 Plan
medium
Sell
51,251 shares
$675,488
Significance 5/10

CFO Aaron Tachibana sells 51,251 shares (20.5% of holding) at $13.18 under pre-arranged 10b5-1 plan

Aaron Tachibana, CFO and COO, sold 51,251 shares at $13.18 on 2026-06-26 as part of a pre-arranged 10b5-1 trading plan adopted on 2025-08-07, reducing his non-derivative holdings to 198,833 shares. This is a scheduled, non-discretionary transaction; timing considerations do not apply. The company faces significant headwinds: Personalis reported a net loss of $-30,032,000 for its most recent full fiscal year, with annual revenue declining 17.7% year-over-year, though the quarterly revenue stands at $15,472,000. The stock has appreciated 37.2% over 30 days and 105.4% over 90 days from depressed levels, trading near its 52-week high of $13.37. Tachibana retains 7,471 stock options (right to buy) in addition to his common shares, indicating an ongoing financial stake in the company's performance.

November 2025
2025-11-28 Personalis, Inc. PSNL 10b5-1 Plan
medium
Sell
103,668 shares
$1,117,541
Significance 4/10

CFO Tachibana Aaron sold 103,668 shares of PSNL at $10.78 on 2025-11-25 ($1.1M) via 10b5-1 plan

Tachibana Aaron, serving as CFO and COO, executed a sale of 103,668 shares at $10.78 on 2025-11-25 under a pre-arranged 10b5-1 trading plan adopted on 2025-08-07. The transaction reduced his holdings from 268,126 shares to 164,458 shares, a reduction of -38.7% vs pre-transaction holdings. Because this transaction is part of a scheduled 10b5-1 plan rather than discretionary trading, it reflects a pre-determined divestiture schedule set weeks in advance and does not convey directional conviction about near-term stock performance. The substantial reduction in absolute share count warrants review of the company's capital strategy and insider cash flow needs, but the scheduled nature of the trade precludes timing-based interpretation.

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