GSI GROUP INC
Net SellingGSIG·US·🇺🇸 US
2%buys·98%sales
1,435 transactions$342KTotal buys·6 buys
$162.9MTotal sells·281 sells
5151 insiders
Last: Dec 22, 2025
| Date | Insider | Type | Value | |
|---|---|---|---|---|
| Dec 22, 25 | Secor Thomas N | Sell | $90K | |
| Dec 15, 25 | Secor Thomas N | Sell | $90K | |
| Dec 2, 25 | Glastra Matthijs | Gift | - | |
| Dec 2, 25 | Glastra Matthijs | Gift | - | |
| Nov 3, 25 | FARRELL MATTHEW | Grant | - | |
| Sep 10, 25 | Glastra Matthijs | Gift | - | |
| Sep 10, 25 | Glastra Matthijs | Gift | - | |
| Jul 11, 25 | Ladone Mary Kay | Exercise | - | |
| Jul 11, 25 | Ladone Mary Kay | Exercise | - | |
| May 8, 25 | Johnson Robert Matthew | Exercise | - |
GSI GROUP INC (GSIG) has recorded 1 435 insider transactions from 51 insiders. Total insider buying volume stands at $342K, while total selling volume is $162.9M. Overall insider sentiment is bearish (98% sales).
GSI GROUP INC (GSIG) has recorded 1 435 insider operations, including 6 open-market purchases ($342K), 281 sales ($162.9M) and 1 148 other operations (stock option exercises, grants, tax dispositions, donations). The insider sentiment is bearish (98% sales).
Insider activity at GSI GROUP INC is sustained, with operations recorded in 8 of the last 12 months — a sign of regular regulatory filings.
Among the most active insiders are Roush John A (CEO), Glastra Matthijs (CEO) & WINSTON CHARLES D (CEO), with respectively 256, 225, 31 transactions.
Across all 1 435 recorded transactions, the breakdown by type is: exercise (553, 39%), grant (332, 23%), sales (281, 20%), tax (198, 14%), gift (36, 3%).
Data sourced from regulatory filings (SEC Form 4, AMF, BaFin, FI, and other European authorities).
GSI GROUP INC has recorded 1 435 insider operations in total, including 6 open-market purchases ($342K), 281 sales ($162.9M) and 1 148 other operations (stock option exercises, grants, tax dispositions, donations). The most recent transaction was recorded on December 22, 2025.
Insiders at GSI GROUP INC are currently net sellers, with 2% purchases and 98% sales across all reported transactions. Total buy volume is $342K versus $162.9M in sales, indicating a bearish insider sentiment.
InsiderLens tracks 51 insiders at GSI GROUP INC (GSIG). Roush John A (CEO, 256 tx), Glastra Matthijs (CEO, 225 tx), WINSTON CHARLES D (CEO, 31 tx). Data is sourced from mandatory regulatory filings for persons with access to privileged information.
The insider signal for GSIG is bearish, based on a 2% buy ratio across 287 buy and sell transactions reported to financial regulators. Transactions from C-suite executives (CEO, CFO) and board members are generally considered the most informative signals.
Insider trading data for GSI GROUP INC comes from official regulatory filings: SEC Form 4 (United States), AMF (France), BaFin (Germany), FI (Sweden), and other European financial authorities. These filings are mandatory for directors, officers, and holders of more than 10% of a company's shares. InsiderLens aggregates and normalizes this data for analysis.