Figures computed from official regulatory filings — .
Ask the machine
Search and compare insider transactions, companies and their statistics in plain language. Your question becomes a query over available data, not a conversation or investment advice.
Data for GENZYME CORP only. No web search. Global per-insider statistics are excluded.
An executed search uses one credit, even with no results. Errors and unsupported questions use no credits.
Business description unavailable in our sources.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
11 buys247 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| GC Merger Corp. | Buy | n/a (No price was disclosed in the filing) | conv 22 |
| SEC |
| GC Merger Corp. | Buy | n/a (No price was disclosed in the filing) | conv 11 | SEC |
| GC Merger Corp. | Buy | n/a (No price was disclosed in the filing) | conv 24 | SEC |
| GC Merger Corp. | Buy | $1.2B | conv 14 | SEC |
| COONEY CHARLES L | OtherD (derivative) | $513.6K | SEC |
| Amello Jason | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| CSIMMA ZOLTAN A | OtherD (derivative) | $975.2K | SEC |
| WYZGA MICHAEL S | OtherD (derivative) | $3.1M | SEC |
| BERTHIAUME DOUGLAS A | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BERTHIAUME DOUGLAS A | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Burakoff Steven | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BOUDREAUX GAILtrack record | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| MOSCICKI RICHARD A | OtherD (derivative) | $2.6M | SEC |
| DesRosier Thomas | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| CSIMMA ZOLTAN A | Other | $417.4K | SEC |
| MCGILLICUDY CORNELIUS III | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DZAU VICTOR J | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DesRosier Thomas | Other | $366.1K | SEC |
| BERTHIAUME DOUGLAS A | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DZAU VICTOR J | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BERTHIAUME DOUGLAS A | Exercise | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BOUDREAUX GAILtrack record | OtherD (derivative) | $658.5K | Unusual size | SEC |
| MOSCICKI RICHARD A | Other | $16.1K | SEC |
| DesRosier Thomas | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| SYRON RICHARD F/CA | OtherD (derivative) | $932.4K | Unusual size | SEC |