Constantine S. Macricostas
Constantine S. Macricostas: Director at Photronics. What Constantine S. Macricostas 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.
Photronics (PLAB)
Constantine S. Macricostas holds 410,895 Photronics shares (0.70% of the company), worth about $12.7M at the last price, according to the Form 4 of Apr 14, 2026.
- Shares held: 410,895 (0.70%), $12.7M — Held in their own name.
Declarations
- Photronics (PLAB) — Form 4 of Apr 14, 2026: open-market sale of 50,000 at $45.35; 410,895 shares after 0001140361-26-014646
- Photronics (PLAB) — Form 4 of Apr 13, 2026: grant or award of 3,722; 414,617 shares after 0001140361-26-014877
- Photronics (PLAB) — Form 4 of Apr 2, 2026: gift of 13,000; gift of 37,000; 460,895 shares after 0001140361-26-014644
- Photronics (PLAB) — Form 4 of Jan 3, 2026: grant or award of 1,272; 460,895 shares after 0001140361-26-000561
- Photronics (PLAB) — Form 4 of Jul 2, 2025: open-market sale of 29,500 at $20.20; 459,623 shares after 0001140361-25-024841
- Photronics (PLAB) — Form 4 of Feb 20, 2025: gift of 1,000; 489,123 shares after 0001140361-25-005910
- Photronics (PLAB) — Form 4/A of Feb 13, 2025: grant or award of 7,548; 490,123 shares after 0001140361-25-005153
- Photronics (PLAB) — Form 4 of Feb 13, 2025: grant or award of 3,108 at $22.52; 485,683 shares after 0001140361-25-004945
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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