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ALTR

Altair Engineering Inc
ALTR

Delisted

ALTR was delisted on the 25th of March, 2025.

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3 hedge funds and large institutions have $53.7K invested in Altair Engineering Inc in 2025 Q1 according to their latest regulatory filings, with 0 funds opening new positions, 0 increasing their positions, 2 reducing their positions, and 290 closing their positions.

New
Increased
Maintained
Reduced
Closed

99% less funds holding

Funds holding: 298 → 3 (-295)

100% less funds holding in top 10

Funds holding in top 10: 8 → 0 (-8)

100% less capital invested

Capital invested by funds: $6.27B → $53.7K (-$6.27B)

100% less first-time investments, than exits

New positions opened: 0 | Existing positions closed: 290

100% less repeat investments, than reductions

Existing positions increased: 0 | Existing positions reduced: 2

Holders
3
Holders Change
-295
Holders Change %
-98.99%
% of All Funds
0.04%
Holding in Top 10
–
Holding in Top 10 Change
-8
Holding in Top 10 Change %
-100%
% of All Funds
–
New
–
Increased
–
Reduced
2
Closed
290
Calls
$14K
Puts
–
Net Calls
+$14K
Net Calls Change
+$25.7M

Top Buyers

No buyers this quarter

Top Sellers

Rank Fund Capital Flow
1
MCMC
Matrix Capital Management Company
New Hampshire
-$1.36B
2
BlackRock
BlackRock
New York
-$816M
3
Vanguard Group
Vanguard Group
Pennsylvania
-$752M
4
HI
HBK Investments
Texas
-$303M
5
State Street
State Street
Massachusetts
-$232M
Name Holding Trade Value Shares
Change 		Change in
Stake
PS
1
Principal Securities
Iowa
$36.3K – – –
IA
2
IFP Advisors
Florida
$15.1K -$173K -1,558 -92%
HNB
3
Huntington National Bank
Ohio
$2.28K -$443 -4 -80%
MCMC
4
Matrix Capital Management Company
New Hampshire
– -$1.36B -12,430,000 Closed
BlackRock
5
BlackRock
New York
– -$816M -7,478,856 Closed
Vanguard Group
6
Vanguard Group
Pennsylvania
– -$752M -6,894,230 Closed
HI
7
HBK Investments
Texas
– -$303M -2,779,518 Closed
State Street
8
State Street
Massachusetts
– -$232M -2,122,319 Closed
Geode Capital Management
9
Geode Capital Management
Massachusetts
– -$152M -1,394,124 Closed
Impax Asset Management Group
10
Impax Asset Management Group
United Kingdom
– -$130M -1,196,098 Closed
CCA
11
Conestoga Capital Advisors
Pennsylvania
– -$121M -1,112,548 Closed
AllianceBernstein
12
AllianceBernstein
Tennessee
– -$116M -1,066,016 Closed
Goldman Sachs
13
Goldman Sachs
New York
– -$99.3M -909,907 Closed
UOC
14
UBS O'Connor
Illinois
– -$97.9M -897,580 Closed
Northern Trust
15
Northern Trust
Illinois
– -$82M -751,191 Closed
CS
16
Candriam SCA
Luxembourg
– -$67M -614,335 Closed
Dimensional Fund Advisors
17
Dimensional Fund Advisors
Texas
– -$64.5M -591,573 Closed
MF
18
Magnetar Financial
Illinois
– -$62.1M -569,534 Closed
Aberdeen Group
19
Aberdeen Group
United Kingdom
– -$61.9M -566,936 Closed
JP Morgan Chase
20
JP Morgan Chase
New York
– -$61.8M -566,791 Closed
Millennium Management
21
Millennium Management
New York
– -$61.2M -560,612 Closed
Morgan Stanley
22
Morgan Stanley
New York
– -$59.8M -547,863 Closed
BAMCO Inc
23
BAMCO Inc
New York
– -$58.8M -539,002 Closed
Charles Schwab
24
Charles Schwab
California
– -$55.3M -506,579 Closed
AA
25
AQR Arbitrage
Connecticut
– -$53.2M -487,904 Closed
1
2 3 4 5

ALTR Hedge Fund Activity: Q1 2025 in Review

3 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Altair Engineering Inc (ALTR) for Q1 2025, worth a combined $53.7K — down 100% from $6.27B a quarter earlier.

Sellers outnumbered buyers: 290 funds closed out of ALTR and 0 opened new positions — a net loss of 290 holders — while 2 trimmed existing stakes and 0 added.

The largest seller was Matrix Capital Management Company, exiting entirely with an estimated $1.36B sold.

  • 3 institutional investors held Altair Engineering Inc (ALTR) as of Q1 2025, down from 298 in Q4 2024.
  • Funds reported $53.7K of Altair Engineering Inc stock for Q1 2025, down 100% quarter-over-quarter.
  • 0 funds opened new Altair Engineering Inc positions in Q1 2025 and 290 closed out, a net change of -290 holders.
  • The largest Altair Engineering Inc seller in Q1 2025 was Matrix Capital Management Company, an estimated $1.36B sold.

Based on aggregated 13F filings for Q1 2025.