Key facts
- This page summarizes George J. Christ's Form 4 filing for Altair Engineering Inc. (ALTR).
- 5 reported transactions and 2 derivative rows are listed below.
- Accepted by SEC: 26 Mar 2025, 16:29.
George J. Christ - 26 Mar 2025 Form 4 Insider Report for Altair Engineering Inc. (ALTR)
- Reporting relationship
- 10%+ Owner
- Issuer ticker
- ALTR
- Reported as of
- 26 Mar 2025
- Net transaction value
- -$1,039,682,716
- SEC form
- 4
- Accepted by SEC
- 26 Mar 2025, 16:29:19 UTC
- Prior SEC filing
- 25 Oct 2024
- Source filing
- View source filing
- Reporting owner signature
- /s/ Raoul Maitra, attorney-in-fact for George J. Christ
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
George J. Christ filed Form 4 for Altair Engineering Inc. (ALTR) on 26 Mar 2025.
Change
- Previous filing in this sequence was filed on 25 Oct 2024.
- Current net transaction value: -$1,039,682,716.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ALTR
transaction
Class A Common Stock
Disposed to Issuer
- Transaction value
- $21,184,675
- Shares
- -187,475
- Change %
- -100%
- Price
- $113.00
- Shares after
- 0
- Date
- 26 Mar 2025
- Ownership
- By The Dana Christ Irrevocable Trust Dated May 8, 2015
- Footnotes
- F1, F2, F3
ALTR
transaction
Class A Common Stock
Disposed to Issuer
- Transaction value
- $21,184,675
- Shares
- -187,475
- Change %
- -100%
- Price
- $113.00
- Shares after
- 0
- Date
- 26 Mar 2025
- Ownership
- By The Lauren Christ Irrevocable Trust Dated May 8, 2015
- Footnotes
- F1, F2, F3
ALTR
transaction
Class A Common Stock
Disposed to Issuer
- Transaction value
- $33,900,000
- Shares
- -300,000
- Change %
- -100%
- Price
- $113.00
- Shares after
- 0
- Date
- 26 Mar 2025
- Ownership
- By GC Investments
- Footnotes
- F1, F2, F4
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ALTR
transaction
Derivative
Class B Common Stock
Disposed to Issuer
- Transaction value
- $456,972,452
- Shares
- -4,044,004
- Change %
- -100%
- Price
- $113.00
- Shares after
- 0
- Date
- 26 Mar 2025
- Ownership
- By GC Investments
- Underlying class
- Class A Common Stock
- Underlying amount
- 4,044,004
- Exercise price
- $0.000000
- Footnotes
- F1, F4, F5, F6
ALTR
transaction
Derivative
Class B Common Stock
Disposed to Issuer
- Transaction value
- $506,440,914
- Shares
- -4,481,778
- Change %
- -100%
- Price
- $113.00
- Shares after
- 0
- Date
- 26 Mar 2025
- Ownership
- By Christ Revocable Trust
- Underlying class
- Class A Common Stock
- Underlying amount
- 4,481,778
- Exercise price
- $0.000000
- Footnotes
- F1, F5, F6, F7
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Section 16 status
George J. Christ is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.
Explanation of responses 7 footnotes
Footnote F1
On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024.
Footnote F2
Upon the consummation of the merger, each issued and outstanding share of the Company's Class A Common Stock was canceled and converted into the right receive $113.00 in cash without interest.
Footnote F3
Reporting person serves as co-Trustee. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.
Footnote F4
Reporting person serves as Manager. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.
Footnote F5
Upon the consummation of the merger, each issued and outstanding share of the Company's Class B Common Stock was canceled and converted into the right receive $113.00 in cash without interest.
Footnote F6
Each share of the Company's Class B Common Stock was immediately convertible, at the option of the shareholder, into one share of Class A Common Stock and automatically convertible into Class A Common Stock upon the occurrence of certain events.
Footnote F7
Reporting person serves as Trustee. Reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.