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ALTAIR ENGINEERING INC. 2024-2025 Proxy Voting Records

Compiled from SEC Form N-PX filings and ALTAIR ENGINEERING INC.’s Form 8-K, filed January 22, 2025 (Item 5.07 on EDGAR). Page generated October 18, 2026.

  • 5Reported items
  • 339Asset managers
  • 1,283Fund votes
  • January 22, 2025Meeting date

Results at a glance

Meeting of January 22, 2025: 2 items on ALTAIR ENGINEERING INC.’s Form 8-K, filed January 22, 2025: 1 approved · 1 without a stated outcome.

Material dissent

None.

Material dissent: a director nominee under 80% of the votes cast, say-on-pay under 70%, any other item the board put forward under 80%, or a shareholder proposal with more than 50%, on the company’s own Form 8-K tally. How this is decided

Proxy season: 2023-2024 2024-2025

Explore ALTAIR ENGINEERING INC. in the interactive database Compare manager voting policies

Official 2024-2025 meeting results reported by ALTAIR ENGINEERING INC.

These tallies are ALTAIR ENGINEERING INC.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed January 22, 2025 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.

ALTAIR ENGINEERING INC. — official shareholder meeting results, meeting held January 22, 2025
Ballot itemForAgainst AbstainWithheldBroker non-votesSupport (of votes cast)Reported outcomeVoting standard
1. The Merger Agreement Proposal 307,156,60910,86221,052 ---- 99.9%Approved—
2. The Merger-Related Compensation Proposal 305,518,5881,530,771139,164 ---- 99.5%Not verified—

Source: ALTAIR ENGINEERING INC., Form 8-K, filed with the SEC on January 22, 2025 — read the filing on EDGAR.

How asset managers voted at the ALTAIR ENGINEERING INC. 2024-2025 meeting

Each item below shows how the 339 asset managers that disclosed a ALTAIR ENGINEERING INC. vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report. These are reported items, not a count of the ballot: fund filings describe one ballot item in different words. Two descriptions are shown as one item only on evidence — the same text (or one cut short of the other), the same director nominee, or a match to the same row of ALTAIR ENGINEERING INC.’s own Form 8-K tally — never because they merely read alike. A description that could not be joined that way is listed on its own, so one ballot item can appear more than once.

1. 1. The Merger Agreement Proposal

Official resultEXTRAORDINARY TRANSACTIONSReported outcome: Approved

Combines 6 wordings of this item as funds reported it.

99.9% Approved · of votes cast

FOR 99.9%
FOR: 307,156,609AGAINST: 10,862
Details: description as filed, official tally, votes by 110 asset managers

Description as filed by funds: To adopt the Agreement and Plan of Merger, dated as of October 30, 2024 (such agreement, as it may be amended from time to time, the "merger agreement"), among Altair Engineering Inc. ("Altair"), Siemens Industry Software Inc., a Delaware corporation ("Siemens"), and Astra Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of Siemens ("Merger Sub"), pursuant to which, upon the terms and subject to the conditions of the merger agreement, Merger Sub will merge with and into Altair (the "merger"), with Altair surviving the merger and becoming a wholly owned subsidiary of Siemens (the "merger agreement proposal");

ALTAIR ENGINEERING INC.’s own tally for this item (“1. The Merger Agreement Proposal”): 307,156,609 for, 10,862 against — passed, per its Form 8-K filed January 22, 2025 (Item 5.07).

Reported outcome: Approved, in the filing’s own words: “Because Proposal 1 – The Merger Agreement Proposal – was approved, a vote on the adjournment proposal described in the Proxy Statement was not necessary.”
Support: 99.9% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 110 asset managers below reported 20,238,379 for.

FOR
FOR: 20,238,379
Largest asset managers voting on “To adopt the Agreement and Plan of Merger, dated as of October 30, 2024 (such agreement, as it may be amended ” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Vanguard6,482,8180 00For
BlackRock4,830,8220 00For
CONESTOGA FUNDS1,406,2950 00For
Fidelity1,300,2240 00For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)935,0000 00For
Charles Schwab510,6340 00For
AllianceBernstein438,0350 00For
State Street418,9760 00For
Dimensional367,3110 00For
Putnam301,0140 00For
Equitable239,7960 00For
NEEDHAM FUNDS INC225,0000 00For
Columbia Threadneedle200,0540 00For
PRIMECAP Odyssey Funds165,2830 00For
Jackson National150,3730 00For
TIAA143,8290 00For
Principal123,2330 00For
MFS121,4320 00For
QUANTITATIVE MASTER SERIES LLC98,6490 00For
ARBITRAGE FUNDS97,5320 00For
AIG/SunAmerica96,3910 00For
John Hancock95,4580 00For
NICHOLAS Ltd EDITION, INC.84,8700 00For
Northern Trust83,2800 00For
HOMESTEAD FUNDS INC66,8770 00For

Showing the 25 largest of 110 asset managers. See all 110 in the interactive database.

2. TO APPROVE THE ADJOURNMENT OF THE SPECIAL MEETING, IF NECESSARY, TO SOLICIT ADDITIONAL PROXIES IF THERE ARE NOT…

No official matchCORPORATE GOVERNANCE

Combines 2 wordings of this item as funds reported it.

92% of fund votes cast · no official result

FOR
Details: description as filed, votes by 106 asset managers

Description as filed by funds: TO APPROVE THE ADJOURNMENT OF THE SPECIAL MEETING, IF NECESSARY, TO SOLICIT ADDITIONAL PROXIES IF THERE ARE NOT SUFFICIENT VOTES TO APPROVE THE MERGER AGREEMENT PROPOSAL.

The 106 asset managers below reported 18,544,817 for, 1,641,657 against, 16,911 abstained. The figure above is FOR ÷ (FOR + AGAINST + WITHHELD) of the shares these managers voted; abstained and unvoted shares are in neither half, and these managers are a subset of all shareholders, not the meeting result.

FOR: 18,544,817AGAINST: 1,641,657ABSTAIN: 16,911
Largest asset managers voting on “TO APPROVE THE ADJOURNMENT OF THE SPECIAL MEETING, IF NECESSARY, TO SOLICIT ADDITIONAL PROXIES IF THERE ARE NO” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Vanguard6,482,8180 00For
BlackRock4,830,8220 00For
CONESTOGA FUNDS1,406,2950 00For
Fidelity151,9771,148,247 00Mixed
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)935,0000 00For
Charles Schwab510,6340 00For
AllianceBernstein438,0350 00For
State Street503418,473 00Against
Dimensional367,3110 00For
Putnam301,0140 00For
Equitable239,7960 00For
NEEDHAM FUNDS INC225,0000 00For
Columbia Threadneedle200,0540 00For
PRIMECAP Odyssey Funds165,2830 00For
Jackson National150,3730 00For
TIAA143,8290 00For
Principal123,2330 00For
MFS121,4320 00For
QUANTITATIVE MASTER SERIES LLC98,6490 00For
ARBITRAGE FUNDS97,5320 00For
AIG/SunAmerica96,3910 00For
John Hancock95,4580 00For
NICHOLAS Ltd EDITION, INC.84,8700 00For
Northern Trust83,2800 00For
HOMESTEAD FUNDS INC66,8770 00For

Showing the 25 largest of 106 asset managers. See all 106 in the interactive database.

3. Adjourn Meeting

No official matchSHAREHOLDER RIGHTS AND DEFENSES

100% of fund votes cast · no official result

FOR
Details: votes by 2 asset managers

The 2 asset managers below reported 33,375 for. The figure above is FOR ÷ (FOR + AGAINST + WITHHELD) of the shares these managers voted; abstained and unvoted shares are in neither half, and these managers are a subset of all shareholders, not the meeting result.

FOR: 33,375
Largest asset managers voting on “Adjourn Meeting” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Empower32,5460 00For
HC CAPITAL TRUST8290 00For

4. 2. The Merger-Related Compensation Proposal

Outcome not verifiedFund totals may overlapSECTION 14A SAY-ON-PAY VOTESReported outcome: Not verified

Combines 10 wordings of this item as funds reported it.

99.5% Majority: yes · of votes cast

FOR 99.5%
FOR: 305,518,588AGAINST: 1,530,771
Details: description as filed, official tally, votes by 331 asset managers

Description as filed by funds: To approve on an advisory (non-binding) basis the compensation that may be paid or become payable to Altair's named executive officers that is based on or otherwise relates to the merger, and

ALTAIR ENGINEERING INC.’s own tally for this item (“2. The Merger-Related Compensation Proposal”): 305,518,588 for, 1,530,771 against, per its Form 8-K filed January 22, 2025 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 99.5% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports: 105 asset managers voting on “To approve on an advisory (non-binding) basis the compensation that may be paid or become payable to Altair's ” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Vanguard6,482,8180 00For
BlackRock4,830,8220 00For
CONESTOGA FUNDS1,406,2950 00For
Fidelity1,300,2240 00For
BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND)0935,000 00Against
Charles Schwab510,6340 00For
AllianceBernstein438,0350 00For
State Street418,9760 00For
Dimensional367,3110 00For
Putnam301,0140 00For
Equitable239,7960 00For
NEEDHAM FUNDS INC225,0000 00For
Columbia Threadneedle200,0540 00For
PRIMECAP Odyssey Funds165,2830 00For
Jackson National150,3730 00For
TIAA0143,829 00Against
Principal123,2330 00For
MFS121,4320 00For
QUANTITATIVE MASTER SERIES LLC98,6490 00For
ARBITRAGE FUNDS97,5320 00For
AIG/SunAmerica96,3910 00For
John Hancock95,4580 00For
NICHOLAS Ltd EDITION, INC.84,8700 00For
Northern Trust83,2800 00For
HOMESTEAD FUNDS INC66,8770 00For

Fund voting reports, all 105 managers: 19,064,999 for, 1,104,326 against, 34,060 abstained. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports: 252 asset managers voting on “To approve on an advisory (non-binding) basis the compensation that may be paid or become payable to Altair's ” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Matrix Capital Management Company, LP12,427,8130 00For
BlackRock2,398,1720 00For
State Street1,983,3340 00For
GEODE CAPITAL MANAGEMENT, LLC1,312,2660 00For
IMPAX ASSET MANAGEMENT LLC1,069,0450 00For
AllianceBernstein984,5560 00For
BAMCO INC /NY/0935,000 00Against
UBS868,4190 00For
Candriam S.C.A.669,1280 00For
Northern Trust638,6610 00For
Conestoga Capital Advisors, LLC575,05534,955 00Mixed
Aberdeen566,9360 00For
Charles Schwab520,3900 00For
MELLON INVESTMENTS Corp382,6670 00For
Woodline Partners LP340,6720 00For
Putnam324,5760 00For
Magnetar Financial LLC298,6670 00For
PRIMECAP MANAGEMENT CO/CA/247,1230 00For
Man Group plc230,0600 00For
Vanguard226,2640 00For
CANADA PENSION PLAN INVESTMENT BOARD222,6000 00For
TIG Advisors, LLC202,2350 00For
AQR182,1320 00For
PRINCIPAL GLOBAL INVESTORS166,5170 00For
Pentwater Capital Management LP159,5870 00For

Institutional-manager reports, all 252 managers: 30,239,343 for, 1,379,384 against, 61,765 abstained, 5,075 not voted. Showing the 25 largest; see all in the interactive database.

5. Advisory Vote on Golden Parachutes

No official matchFund totals may overlapSECTION 14A SAY-ON-PAY VOTES

Combines 2 wordings of this item as funds reported it.

100% Fund and manager reports combined; may count the same shares twice · no official result

FOR
Details: votes by 6 asset managers

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice). The figure above is FOR ÷ (FOR + AGAINST + WITHHELD) of the shares these managers voted; abstained and unvoted shares are in neither half, and these managers are a subset of all shareholders, not the meeting result.

Fund voting reports: 2 asset managers voting on “Advisory Vote on Golden Parachutes” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Empower32,5460 00For
HC CAPITAL TRUST8290 00For

Fund voting reports, all 2 managers: 33,375 for.

Institutional-manager reports: 3 asset managers voting on “Advisory Vote on Golden Parachutes” at ALTAIR ENGINEERING INC., 2024-2025
Asset managerForAgainst AbstainWithheldVote
Thematics Asset Management343,5060 00For
ADAGE CAPITAL PARTNERS GP, L.L.C.139,8440 00For
ESSEX INVESTMENT MANAGEMENT CO LLC3120 00For

Institutional-manager reports, all 3 managers: 483,662 for.

Largest ALTAIR ENGINEERING INC. shareholders voting in 2024-2025

Ranked separately for each type of Form N-PX report. An institutional manager can report shares that a fund it advises also reports, so the two tables can list the same shares and are never added together. Each is ranked by the shares voted on the item that the most managers of that type reported, shown as a share of the 84,085,000 shares outstanding at the time of that meeting.

Fund voting reports: top ALTAIR ENGINEERING INC. shareholders by shares voted on “To adopt the Agreement and Plan of Merger, dated as of October 30, 2024 (such agreement, as it…”, 2024-2025
#Asset manager % of shares outstanding
1Vanguard 7.71%
2BlackRock 5.75%
3CONESTOGA FUNDS 1.67%
4Fidelity 1.55%
5BARON INVESTMENT FUNDS TRUST (f/k/a BARON ASSET FUND) 1.11%
6Charles Schwab 0.61%
7AllianceBernstein 0.52%
8State Street 0.50%
9Dimensional 0.44%
10Putnam 0.36%
Institutional-manager reports: top ALTAIR ENGINEERING INC. shareholders by shares voted on “To approve on an advisory (non-binding) basis the compensation that may be paid or become…”, 2024-2025
#Asset manager % of shares outstanding
1Matrix Capital Management Company, LP 14.78%
2BlackRock 2.85%
3State Street 2.36%
4GEODE CAPITAL MANAGEMENT, LLC 1.56%
5IMPAX ASSET MANAGEMENT LLC 1.27%
6AllianceBernstein 1.17%
7BAMCO INC /NY/ 1.11%
8UBS 1.03%
9Candriam S.C.A. 0.80%
10Northern Trust 0.76%

Reported ALTAIR ENGINEERING INC. holdings and ownership

As disclosed to the SEC in Form 13F (quarter-end holdings of 30 large managers), Schedules 13D and 13G (beneficial ownership above 5%) and the company’s own proxy statement (DEF 14A). Each row names its form.

ALTAIR ENGINEERING INC. holdings and ownership disclosed for the 2024-2025 proxy season
Holder % outstanding Disclosure
Matrix Capital Management Company LP 14.55% DEF14A
BlackRock, Inc. 8.89% 13G
The Vanguard Group, Inc. 6.85% DEF14A
Pictet Asset Management S.A. 3.45% DEF14A
George J. Christ 1.16% DEF14A
James R. Scapa 0.26% DEF14A
Nuveen 0.20% 13F
Mahalingam Srikanth 0.16% DEF14A
Norges Bank 0.11% 13F
Stephanie Buckner 0.10% DEF14A

Percentages above are of 84,085,000 shares outstanding, as reported by ALTAIR ENGINEERING INC. on its Form 10-K dated December 31, 2024 (see the filing on EDGAR). This is the count contemporaneous with the 2024-2025 meeting, not today’s. Each holding is as of its own filing, which may be dated before or after the meeting.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered funds disclose how they voted every proxy and institutional managers disclose their votes on executive pay (say-on-pay, say-on-frequency and golden parachutes), and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from ALTAIR ENGINEERING INC.’s 10-K dated December 31, 2024. This page is a static snapshot rebuilt weekly on October 18, 2026; a live search always shows the current data.

At ALTAIR ENGINEERING INC.'s shareholder meeting held January 22, 2025, in the 2024-2025 proxy season, 339 asset managers reported how they voted in their SEC Form N-PX filings, covering 1,283 separate fund positions. Their filings are grouped here into 5 reported items; because filers word the same ballot item differently, that can be more than the number of items on the ballot. On the most widely held item on that ballot — To approve on an advisory (non-binding) basis the compensation that may be paid or become… — FOR was 99.5% of the votes cast (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side), which is more than half. Whether the item was approved is for the filing to say; that statement has not been read for this item. Source: ALTAIR ENGINEERING INC.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on January 22, 2025.

ALTAIR ENGINEERING INC. proxy season coverage: 2023-2024 · 2024-2025 (this page).

Download data (CSV): ballot items · votes by manager · column guide.