Jennifer Allerton

Jennifer Allerton: Director at Iron Mountain. What Jennifer Allerton 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.

Iron Mountain (IRM)

Jennifer Allerton holds 13,300 Iron Mountain shares (0.00% of the company), worth about $1.5M at the last price, according to the Form 4 of May 7, 2026.

• Shares held: 13,300 (0.00%), $1.5M — Held in their own name.

Declarations

• Iron Mountain (IRM) — Form 4 of May 7, 2026: grant or award of 1,892; shares withheld for tax of 133 at $126.81; 13,300 shares after 0001618762-26-000004
• Iron Mountain (IRM) — Form 4 of Mar 2, 2026: open-market sale of 7,000 at $108.88; 11,541 shares after 0001618762-26-000002
• Iron Mountain (IRM) — Form 4 of May 29, 2025: grant or award of 2,249; shares withheld for tax of 203 at $97.80; 18,541 shares after 0001020569-25-000120

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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