James R. Scapa - Oct 28, 2024 Form 4 Insider Report for Altair Engineering Inc. (ALTR)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Raoul Maitra, attorney-in-fact for James R. Scapa
Stock symbol: ALTR
Transactions as of: Oct 28, 2024
Transactions value $: -$1,333,696
Form type: 4
Date filed: 10/29/2024, 02:21 PM
Previous filing: Oct 1, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALTR	Class A Common Stock	Conversion of derivative security	$0	+6.5K		$0.00	6.5K	Oct 28, 2024	By James R. Scapa Declaration of Trust dated March 5, 1987	F1
transaction	ALTR	Class A Common Stock	Sale	-$376K	-3.68K	-56.66%	$102.08	2.82K	Oct 28, 2024	By James R. Scapa Declaration of Trust dated March 5, 1987	F1, F2, F3
transaction	ALTR	Class A Common Stock	Sale	-$260K	-2.52K	-89.53%	$103.19	295	Oct 28, 2024	By James R. Scapa Declaration of Trust dated March 5, 1987	F1, F2, F4
transaction	ALTR	Class A Common Stock	Sale	-$30.6K	-295	-100%	$103.84	0	Oct 28, 2024	By James R. Scapa Declaration of Trust dated March 5, 1987	F1, F2, F5
transaction	ALTR	Class A Common Stock	Conversion of derivative security	$0	+6.5K		$0.00	6.5K	Oct 28, 2024	By JRS Investments LLC	F6
transaction	ALTR	Class A Common Stock	Sale	-$376K	-3.68K	-56.65%	$102.08	2.82K	Oct 28, 2024	By JRS Investments LLC	F2, F6, F7
transaction	ALTR	Class A Common Stock	Sale	-$260K	-2.52K	-89.5%	$103.19	296	Oct 28, 2024	By JRS Investments LLC	F2, F6, F8
transaction	ALTR	Class A Common Stock	Sale	-$30.7K	-296	-100%	$103.84	0	Oct 28, 2024	By JRS Investments LLC	F2, F6, F9
holding	ALTR	Class A Common Stock						134K	Oct 28, 2024	Direct	F10
holding	ALTR	Class A Common Stock						1.19K	Oct 28, 2024	By wife	F11

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ALTR	Class B Common Stock	Conversion of derivative security	$0	-6.5K	-0.06%	$0.00	10.2M	Oct 28, 2024	Class A Common Stock	6.5K	$0.00	By James R. Scapa Declaration of Trust dated March 5, 1987	F1, F12
transaction	ALTR	Class B Common Stock	Conversion of derivative security	$0	-6.5K	-0.1%	$0.00	6.63M	Oct 28, 2024	Class A Common Stock	6.5K	$0.00	By JRS Investments LLC	F6, F12

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id	Content
F1	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.
F2	The sale of the shares of Class A Common Stock were made pursuant to a plan intended to comply with Rule 10b5-1 of the Exchange Act, previously entered into on March 11, 2024.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.6036 to $102.58 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F4	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.65 to $103.61 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F5	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.6750 to $104.305 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F6	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.
F7	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.6036 to $102.58 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F8	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $102.65 to $103.61 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F9	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.6750 to $104.305 per share, inclusive. The reporting person undertakes to provide to Altair Engineering Inc., any security holder of Altair Engineering Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
F10	Includes 88,194 Class A Common Stock restricted stock units that are unvested.
F11	Includes 20 Class A Common Stock restricted stock units that are unvested.
F12	Each share of Class B common stock is immediately convertible, at the option of the shareholder, into one share of Class A common stock and shall automatically convert into Class A common stock upon the occurrence of certain events. Please see Altair Engineering Inc. Registration Statement filed with the Securities and Exchange Commission on Form S-1 (File No. 333-220710) for a description of the conversion rights.