Robert Mionis
Robert Mionis: Chief Executive Officer · Director at Celestica. What Robert Mionis 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.
Celestica (CLS)
Robert Mionis holds 664,142 Celestica shares (0.58% of the company), worth about $254.8M at the last price, according to the Form 4 of Sep 23, 2026.
- Shares held: 453,697 (0.39%), $174.1M — Held in their own name.
- Shares held: 210,445 (0.18%), $80.7M — Held through trusts (By Mionis 2026 GRAT Number One).
- Share units: 1,271 (0.00%), $487,682.70 — Celestica promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Celestica (CLS) — Form 4 of Sep 23, 2026 (Chief Executive Officer): open-market sale of 1,920 at $360.36; open-market sale of 2,294 at $361.22; 664,142 shares after 0001193125-26-401230
- Celestica (CLS) — Form 4 of Aug 13, 2026 (Chief Executive Officer): open-market sale of 5,554 at $360.37; open-market sale of 4,941 at $361.44; 687,538 shares after 0001193125-26-352263
- Celestica (CLS) — Form 4 of Aug 11, 2026 (Chief Executive Officer) 0001193125-26-347045
- Celestica (CLS) — Form 4 of Aug 5, 2026 (Chief Executive Officer): open-market sale of 1,092 at $361.89; open-market sale of 5,909 at $362.38; 711,034 shares after 0001193125-26-338763
- Celestica (CLS) — Form 4 of Aug 4, 2026 (Chief Executive Officer): open-market sale of 9,564 at $360.28; open-market sale of 1,331 at $361.52; 762,095 shares after 0001193125-26-338762
- Celestica (CLS) — Form 4 of Jul 31, 2026 (Chief Executive Officer): open-market sale of 340 at $360.47; open-market sale of 67 at $361.11; 860,548 shares after 0001193125-26-330957
- Celestica (CLS) — Form 4 of Jun 17, 2026 (Chief Executive Officer): open-market sale of 341 at $378.37; open-market sale of 1,515 at $379.50; 870,091 shares after 0001193125-26-274668
- Celestica (CLS) — Form 4 of Jun 16, 2026 (Chief Executive Officer): open-market sale of 4,779 at $382.21; open-market sale of 5,887 at $383.14; 888,267 shares after 0001193125-26-274665
- Celestica (CLS) — Form 4 of Jun 15, 2026 (Chief Executive Officer): open-market sale of 1,420 at $394.58; open-market sale of 2,983 at $395.92; 944,035 shares after 0001193125-26-274663
- Celestica (CLS) — Form 4 of Feb 4, 2026 (Chief Executive Officer): option exercise or conversion of 12,133; shares withheld for tax of 4,775 at $297.45; 1.0M shares after 0001193125-26-041236
- Celestica (CLS) — Form 4 of Feb 3, 2026 (Chief Executive Officer): option exercise or conversion of 780,376; shares withheld for tax of 307,078 at $280.99; 1.0M shares after 0001193125-26-035613
- Celestica (CLS) — Form 4 of Jan 29, 2026 (Chief Executive Officer) 0001193125-26-031899
- Celestica (CLS) — Form 4 of Dec 1, 2025 (Chief Executive Officer): option exercise or conversion of 86,709; shares withheld for tax of 34,120 at $344.41; 509,006 shares after 0001193125-25-305288
- Celestica (CLS) — Form 4 of Feb 5, 2025 (President & CEO): open-market sale of 13,037 at $139.31; open-market sale of 9,674 at $140.60; 456,417 shares after 0000950170-25-015249
- Celestica (CLS) — Form 4 of Feb 5, 2025 (Chief Executive Officer): open-market sale of 441,325 at $122.28; 531,417 shares after 0000950170-25-014743
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.