Stephanie Tilenius
Stephanie Tilenius: Director at Seagate. What Stephanie Tilenius 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.
Seagate (STX)
Stephanie Tilenius holds 10,664 Seagate shares (0.00% of the company), worth about $8.1M at the last price, according to the Form 4 of May 5, 2026.
- Shares held: 10,664 (0.00%), $8.1M — Held in their own name.
- Share units: 1,580 (0.00%), $1.2M — Seagate promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Seagate (STX) — Form 4 of May 5, 2026: open-market sale of 1,540 at $766.60; open-market sale of 40 at $767.33; 10,664 shares after 0001137789-26-000099
- Seagate (STX) — Form 4 of Nov 3, 2025: open-market sale of 2,046 at $266.41; 12,244 shares after 0001137789-25-000329
- Seagate (STX) — Form 4 of Oct 25, 2025 0001137789-25-000307
- Seagate (STX) — Form 4 of Oct 19, 2025: option exercise or conversion of 2,693; shares withheld for tax of 647 at $225.40; 14,290 shares after 0001137789-25-000270
- Seagate (STX) — Form 4 of Jun 5, 2025: open-market sale of 2,693 at $128.04; 12,244 shares after 0001137789-25-000108
- Seagate (STX) — Form 4 of Oct 19, 2024: option exercise or conversion of 4,271; 14,937 shares after 0001137789-24-000169
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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