John C. Plant

John C. Plant: Director at Jabil. What John C. Plant holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

Jabil (JBL)

John C. Plant holds 6,500 Jabil shares (0.01% of the company), worth about $1.8M at the last price, according to the Form 4 of Apr 23, 2026.

• Shares held: 6,500 (0.01%), $1.8M — Held in their own name.

Declarations

• Jabil (JBL) — Form 4 of Apr 23, 2026: grant or award of 600; 6,500 shares after 0001225208-26-004702
• Jabil (JBL) — Form 4 of Jan 24, 2025: grant or award of 1,300; open-market sale of 3,800 at $173.10; 5,900 shares after 0001225208-25-000904

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

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