GSI GROUP INC

Q: Jul 3 2026

Q: Apr 3 2026

FY: Dec 31 2025

Q: Sep 26 2025

Q: Jun 27 2025

Q: Mar 28 2025

FY: Dec 31 2024

Q: Sep 27 2024

Q: Jun 28 2024

Q: Mar 29 2024

FY: Dec 31 2023

Q: Sep 29 2023

Q: Jun 30 2023

Q: Mar 31 2023

FY: Dec 31 2022

Q: Sep 30 2022

Q: Jul 1 2022

Q: Apr 1 2022

FY: Dec 31 2021

Q: Oct 1 2021

Financial Statements and Exhibits

Results of Operations and Financial Condition

Completion of Acquisition or Disposition of Assets

Entry into a Material Definitive Agreement

Entry into a Material Definitive Agreement

Submission of Matters to a Vote of Security Holders

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Results of Operations and Financial Condition

Regulation FD Disclosure

Regulation FD Disclosure

Entry into a Material Definitive Agreement

Results of Operations and Financial Condition

Other Events

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Entry into a Material Definitive Agreement

Cost Associated with Exit or Disposal Activities

Submission of Matters to a Vote of Security Holders

Automatic Shelf Registration

Certification of approval for listing and registration on a national securities exchange

Registration of Securities on Exchange

Free Writing Prospectus

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Automatic Shelf Registration

Automatic Shelf Registration

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Automatic Shelf Registration

Notice of Effectiveness

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Notice of Effectiveness

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

Registration of Securities on Exchange

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Notification of removal from listing and/or registration on a national securities exchange

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Preliminary Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Required Information in Proxy Statement

Secor Thomas N

Secor Thomas N

PRICE T ROWE ASSOCIATES INC /MD/

BlackRock, Inc.

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

Glastra Matthijs

VANGUARD CAPITAL MANAGEMENT LLC

VANGUARD PORTFOLIO MANAGEMENT LLC

Glastra Matthijs

Glastra Matthijs

VANGUARD GROUP INC

Buckley Robert

Glastra Matthijs

Specialized Disclosure Report

Annual Report Scanned (Paper)

Post-effective amendment to an automatic shelf registration statement

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

No description available

Specialized Disclosure Report

Specialized Disclosure Report

No description available

Specialized Disclosure Report

Specialized Disclosure Report

Specialized Disclosure Report

Annual Report Scanned (Paper)

Specialized Disclosure Report