Vault-13

ALTAIR ENGR INC ALTR

COM CL A · Common Stock · CUSIP 021369103 · ISIN US0213691035

253 institutional holders +12 vs Q2 2024
60,748,80060.7m shares reported held*
$5.8bnreported value*
33 new 102 added 75 reduced 19 sold out net sold ≈ $39.6m (-414.7k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $95.49. Options: 7 managers hold calls ($41.1m notional), 6 hold puts ($19.6m).

Trends to Q3 2024

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 178Q4 22: 173Q1 23: 200Q2 23: 215Q3 23: 195Q4 23: 217Q1 24: 234Q2 24: 241Q3 24: 253253Q3 22Q1 23Q3 23Q1 24Q3 24
Numbers
QuarterHolders
Q3 2022178
Q4 2022173
Q1 2023200
Q2 2023215
Q3 2023195
Q4 2023217
Q1 2024234
Q2 2024241
Q3 2024253

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
2000200Q4 22: 93 bought or addedQ4 22: 93 cut or sold outQ1 23: 112 bought or addedQ1 23: 78 cut or sold outQ1 23Q2 23: 107 bought or addedQ2 23: 96 cut or sold outQ3 23: 95 bought or addedQ3 23: 100 cut or sold outQ3 23Q4 23: 114 bought or addedQ4 23: 91 cut or sold outQ1 24: 124 bought or addedQ1 24: 97 cut or sold outQ1 24Q2 24: 151 bought or addedQ2 24: 108 cut or sold outQ3 24: 135 bought or addedQ3 24: 94 cut or sold outQ3 24
Numbers
QuarterBought or addedCut or sold out
Q4 20229393
Q1 202311278
Q2 202310796
Q3 202395100
Q4 202311491
Q1 202412497
Q2 2024151108
Q3 202413594

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$20m$40m$60mQ4 23 calls: $16.8mQ4 23 puts: $4.8mQ4 23P/C 0.28Q1 24 calls: $24.2mQ1 24 puts: $8.1mQ1 24P/C 0.34Q2 24 calls: $34.0mQ2 24 puts: $18.3mQ2 24P/C 0.54Q3 24 calls: $41.1mQ3 24 puts: $19.6mQ3 24P/C 0.48
Numbers
QuarterCallsPutsP/C
Q4 2023$16.8m$4.8m0.28
Q1 2024$24.2m$8.1m0.34
Q2 2024$34.0m$18.3m0.54
Q3 2024$41.1m$19.6m0.48

Biggest buyers

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Added +537,366+537.4k
VANGUARD GROUP INC Added +275,709+275.7k
MACQUARIE GROUP LTD New +211,360+211.4k
GOLDMAN SACHS GROUP INC Added +183,287+183.3k
Candriam S.C.A. Added +140,133+140.1k
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Added +94,219+94.2k
Fisher Asset Management, LLC Added +85,303+85.3k
VICTORY CAPITAL MANAGEMENT INC Added +78,048+78.0k
BARCLAYS PLC Added +71,933+71.9k
STATE STREET CORP Added +65,589+65.6k

Biggest sellers

AXA S.A. Reduced -723,932-723.9k
T. Rowe Price Investment Management, Inc. Reduced -269,598-269.6k
EAGLE ASSET MANAGEMENT INC Sold out -162,785-162.8k
AMERIPRISE FINANCIAL INC Reduced -141,780-141.8k
GREAT LAKES ADVISORS, LLC Sold out -136,043-136.0k
JANE STREET GROUP, LLC Reduced -133,696-133.7k
BAMCO INC /NY/ Reduced -126,163-126.2k
Pictet Asset Management Holding SA Reduced -110,788-110.8k
Bank of New York Mellon Corp Reduced -98,349-98.3k
FRED ALGER MANAGEMENT, LLC Reduced -85,709-85.7k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $35.8m374.7k shares
PEAK6 Investments LLC Added $2.6m27.6k shares
CITADEL ADVISORS LLC Reduced $1.2m12.2k shares
MILLENNIUM MANAGEMENT LLC New $955.1k10.0k shares
SIMPLEX TRADING, LLC New $401.0k4.2k shares
Walleye Trading LLC New $171.9k1.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

Parallax Volatility Advisers, L.P. Added $9.6m100.1k shares
SIMPLEX TRADING, LLC Added $5.0m52.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $2.4m24.7k shares
CITADEL ADVISORS LLC Reduced $1.6m16.6k shares
Walleye Trading LLC New $1.1m11.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution filed 2025-02-05 12.5% 7.5m 2025-02-05

Holders, Q3 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Matrix Capital Management Company, LP 56.68% of their portfolio Portsmouth, NH 12,430,00012.4m $1.2bn $1.2bn 56.68% Unchanged
2 BlackRock, Inc. 0.02% of their portfolio New York, NY 8,044,7858.0m $768.4m $768.4m 0.02% First filing
3 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 6,576,6556.6m $628.1m $628.1m 0.01% Added +275.7k +275,709
4 Conestoga Capital Advisors, LLC 3.27% of their portfolio WAYNE, PA 2,522,5512.5m $240.9m $240.9m 3.27% Added +34.0k +33,985
5 Pictet Asset Management Holding SA 0.24% of their portfolio CAROUGE, V8 2,275,3992.3m $217.3m $217.3m 0.24% Reduced -110.8k -110,788
6 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 2,053,9572.1m $196.2m $196.2m 0.01% Added +65.6k +65,589
7 WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.35% of their portfolio CHICAGO, IL 1,471,1841.5m $140.5m $140.5m 0.35% Added +537.4k +537,366
8 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 1,423,8801.4m $136.0m $136.0m 0.01% Added +53.1k +53,088
9 Invesco Ltd. 0.03% of their portfolio ATLANTA, GA 1,405,9611.4m $134.3m $134.3m 0.03% Reduced -72.8k -72,793
10 Impax Asset Management Group plc 0.51% of their portfolio LONDON, X0 1,360,2211.4m $129.1m $129.1m 0.51% Reduced -46.4k -46,433
11 ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio NASHVILLE, TN 1,270,6031.3m $121.4m $121.4m 0.04% Reduced -23.2k -23,248
12 BAMCO INC /NY/ 0.32% of their portfolio NEW YORK, NY 1,259,3441.3m $120.3m $120.3m 0.32% Reduced -126.2k -126,163
13 JANUS HENDERSON GROUP PLC 0.05% of their portfolio LONDON, X0 1,070,6211.1m $102.3m $102.3m 0.05% Added +1.8k +1,799
14 T. Rowe Price Investment Management, Inc. 0.06% of their portfolio BALTIMORE, MD 982,039982.0k $93.8m $93.8m 0.06% Reduced -269.6k -269,598
15 AXA S.A. 0.20% of their portfolio PARIS, I0 707,144707.1k $67.5m $67.5m 0.20% Reduced -723.9k -723,932
16 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 702,581702.6k $67.1m $67.1m 0.01% Reduced -26.5k -26,458
17 Candriam S.C.A. 0.38% of their portfolio STRASSEN, N4 700,698700.7k $66.9m $66.9m 0.38% Added +140.1k +140,133
18 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 690,690690.7k $66.0m $66.0m 0.00% Reduced -69.7k -69,678
19 AMERIPRISE FINANCIAL INC 0.02% of their portfolio MINNEAPOLIS, MN 688,258688.3k $65.7m $65.7m 0.02% Reduced -141.8k -141,780
20 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 687,823687.8k $65.7m $65.7m 0.01% Added +37.3k +37,317
21 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 578,988579.0k $55.3m $55.3m 0.01% Added +65.3k +65,293
22 Aberdeen Group plc 0.10% of their portfolio EDINBURGH, X0 566,936566.9k $54.1m $54.1m 0.10% Reduced -24.4k -24,378
23 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 505,470505.5k $48.3m $48.3m 0.01% Added +42.6k +42,592
24 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 470,760470.8k $45.0m $45.0m 0.01% Reduced -98.3k -98,349
25 FRANKLIN RESOURCES INC 0.01% of their portfolio San Mateo, CA 428,283428.3k $40.9m $40.9m 0.01% Reduced -54.0k -54,006
26 FEDERATED HERMES, INC. 0.09% of their portfolio PITTSBURGH, PA 421,752421.8k $40.3m $40.3m 0.09% Added +24.7k +24,656
27 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 415,368415.4k $39.7m $39.7m 0.01% Reduced -15.2k -15,166
28 Fisher Asset Management, LLC 0.02% of their portfolio PLANO, TX 401,612401.6k $38.4m $38.4m 0.02% Added +85.3k +85,303
29 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 392,343392.3k $37.5m $37.5m 0.01% Added +94.2k +94,219
30 VICTORY CAPITAL MANAGEMENT INC 0.04% of their portfolio San Antonio, TX 388,089388.1k $37.1m $37.1m 0.04% Added +78.0k +78,048
31 FRED ALGER MANAGEMENT, LLC 0.18% of their portfolio NEW YORK, NY 381,760381.8k $36.5m $36.5m 0.18% Reduced -85.7k -85,709
32 Thematics Asset Management 1.42% of their portfolio PARIS, I0 376,281376.3k $35.9m $35.9m 1.42% Unchanged
33 Stephens Investment Management Group LLC 0.49% of their portfolio LITTLE ROCK, AR 376,279376.3k $35.9m $35.9m 0.49% Reduced -16.4k -16,381
34 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 343,802343.8k $32.8m $32.8m 0.01% Added +183.3k +183,287
35 PALISADE CAPITAL MANAGEMENT, LP 0.85% of their portfolio FORT LEE, NJ 335,426335.4k $32.0m $32.0m 0.85% Reduced -20.8k -20,789
36 PRIMECAP MANAGEMENT CO/CA/ 0.02% of their portfolio PASADENA, CA 322,493322.5k $30.8m $30.8m 0.02% Reduced -21.9k -21,910
37 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 275,562275.6k $26.3m $26.3m 0.00% Added +16.5k +16,486
38 NEEDHAM INVESTMENT MANAGEMENT LLC 1.70% of their portfolio NEW YORK, NY 231,500231.5k $22.1m $22.1m 1.70% Added +37.5k +37,500
39 FMR LLC 0.00% of their portfolio BOSTON, MA 214,895214.9k $20.5m $20.5m 0.00% Added +7.7k +7,698
40 MACQUARIE GROUP LTD 0.02% of their portfolio Sydney, NSW 2000, C3 211,360211.4k $20.2m $20.2m 0.02% New
41 COMERICA BANK 0.08% of their portfolio DALLAS, TX 200,084200.1k $19.1m $19.1m 0.08% Reduced -3.5k -3,460
42 RHUMBLINE ADVISERS 0.02% of their portfolio BOSTON, MA 176,751176.8k $16.9m $16.9m 0.02% Reduced -2.0k -2,037
43 KING LUTHER CAPITAL MANAGEMENT CORP 0.07% of their portfolio FORT WORTH, TX 174,733174.7k $16.7m $16.7m 0.07% Added +9.3k +9,310
44 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 165,793165.8k $15.8m $15.8m 0.01% Reduced -46.8k -46,767
45 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 162,066162.1k $15.5m $15.5m 0.00% Added +421 +421
46 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 157,596157.6k $15.1m $15.1m 0.00% Reduced -1.0k -1,000
47 MAIRS & POWER INC 0.11% of their portfolio St Paul, MN 127,394127.4k $12.2m $12.2m 0.11% Reduced -3.5k -3,514
48 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 126,613126.6k $12.1m $12.1m 0.00% Reduced -19.9k -19,934
49 RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio ST PETERSBURG, FL 120,485120.5k $11.5m $11.5m 0.01% Added +477 +477
50 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 115,209115.2k $11.0m $11.0m 0.01% Reduced -6.8k -6,800
51 Swiss National Bank 0.01% of their portfolio ZURICH, V8 111,200111.2k $10.6m $10.6m 0.01% Reduced -800 -800
52 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 104,844104.8k $10.0m $10.0m 0.00% Added +71.9k +71,933
53 Corebridge Financial, Inc. 0.05% of their portfolio HOUSTON, TX 100,401100.4k $9.6m $9.6m 0.05% Reduced -1.9k -1,949
54 STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio MADISON, WI 100,078100.1k $9.6m $9.6m 0.02% Unchanged
55 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 93,42693.4k $8.9m $8.9m 0.01% Added +26.1k +26,085
56 Legal & General Group Plc 0.00% of their portfolio London, X0 91,76491.8k $8.8m $8.8m 0.00% Added +3.7k +3,719
57 NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio NEW YORK, NY 86,87286.9k $8.3m $8.3m 0.01% Reduced -54.0k -54,019
58 NICHOLAS COMPANY, INC. 0.13% of their portfolio MILWAUKEE, WI 85,96086.0k $8.2m $8.2m 0.13% Unchanged
59 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 85,05685.1k $8.1m $8.1m 0.00% Reduced -9 -9
60 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 77,47777.5k $7.4m $7.4m 0.01% Added +23.7k +23,661
61 Moody Aldrich Partners LLC 1.31% of their portfolio MARBLEHEAD, MA 75,23375.2k $7.2m $7.2m 1.31% Added +9.9k +9,907
62 Homestead Advisers Corp 0.17% of their portfolio Arlington, VA 74,37774.4k $7.1m $7.1m 0.17% Reduced -14.5k -14,500
63 Retirement Systems of Alabama 0.03% of their portfolio MONTGOMERY, AL 72,19172.2k $6.9m $6.9m 0.03% Added +1.9k +1,904
64 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio Toronto, A6 69,19869.2k $6.6m $6.6m 0.01% Reduced -688 -688
65 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.06% of their portfolio New York, NY 64,58864.6k $6.2m $6.2m 0.06% Reduced -793 -793
66 SIT INVESTMENT ASSOCIATES INC 0.14% of their portfolio Minneapolis, MN 63,54363.5k $6.1m $6.1m 0.14% Unchanged
67 MetLife Investment Management, LLC 0.03% of their portfolio Whippany, NJ 61,91061.9k $5.9m $5.9m 0.03% Reduced -22 -22
68 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 60,73960.7k $5.8m $5.8m 0.00% Reduced -9.9k -9,921
69 NORGES BANK 0.00% of their portfolio OSLO, Q8 58,58258.6k $5.6m $5.6m 0.00% Reduced -12.8k -12,824
70 Squarepoint Ops LLC 0.02% of their portfolio NEW YORK, NY 57,20757.2k $5.5m $5.5m 0.02% New
71 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 53,88653.9k $5.1m $5.1m 0.01% Reduced -1.7k -1,706
72 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 50,51850.5k $4.8m $4.8m 0.00% Added +29.6k +29,556
73 CANADA LIFE ASSURANCE Co 0.01% of their portfolio WINNIPEG, A2 44,57744.6k $4.3m $4.3m 0.01% Added +5.6k +5,586
74 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 44,50144.5k $4.3m $4.3m 0.00% Added +26.5k +26,482
75 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 41,22841.2k $3.9m $3.9m 0.01% Reduced -133.7k -133,696
76 ARK Investment Management LLC 0.04% of their portfolio ST. PETERSBURG, FL 40,46340.5k $3.9m $3.9m 0.04% Reduced -10.1k -10,067
77 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 38,50038.5k $3.7m $3.7m 0.00% Added +3.4k +3,422
78 MIRABELLA FINANCIAL SERVICES LLP 0.19% of their portfolio London, X0 37,26237.3k $3.4m $3.4m 0.19% Added +31.6k +31,622
79 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 34,42534.4k $3.3m $3.3m 0.00% Reduced -27.9k -27,854
80 UBS Group AG 0.00% of their portfolio ZURICH, V8 34,36634.4k $3.3m $3.3m 0.00% Added +11.2k +11,240
81 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.03% of their portfolio FRANKFORT, KY 34,24234.2k $3.3m $3.3m 0.03% Added +8.0k +7,981
82 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 34,11934.1k $3.3m $3.3m 0.00% Added +7.4k +7,424
83 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio CAUSEWAY BAY, K3 32,65332.7k $3.1m $3.1m 0.01% Added +3.5k +3,532
84 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 31,42431.4k $3.0m $3.0m 0.00% Added +594 +594
85 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 29,81229.8k $2.8m $2.8m 0.00% Reduced -10.1k -10,087
86 AMALGAMATED BANK 0.02% of their portfolio NEW YORK, NY 27,13227.1k $2.6m $2.6m 0.02% Reduced -462 -462
87 ZACKS INVESTMENT MANAGEMENT 0.02% of their portfolio Chicago, IL 26,33926.3k $2.5m $2.5m 0.02% New
88 QRG CAPITAL MANAGEMENT, INC. 0.03% of their portfolio BERWYN, PA 25,87425.9k $2.5m $2.5m 0.03% Added +2.2k +2,190
89 Daiwa Securities Group Inc. 0.01% of their portfolio CHIYODA-KU,TOKYO, M0 24,50024.5k $2.3m $2.3m 0.01% Added +7.5k +7,500
90 GLENMEDE TRUST CO NA 0.01% of their portfolio PHILADELPHIA, PA 23,34323.3k $2.2m $2.2m 0.01% Added +2.3k +2,334
91 Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio VANCOUVER, A1 23,28223.3k $2.2m $2.2m 0.01% Reduced -68.8k -68,759
92 Zions Bancorporation, N.A. 0.16% of their portfolio SALT LAKE CITY, UT 22,49322.5k $2.1m $2.1m 0.16% Added +3.3k +3,326
93 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 22,00322.0k $2.1m $2.1m 0.01% Added +706 +706
94 YOUSIF CAPITAL MANAGEMENT, LLC 0.02% of their portfolio BLOOMFIELD HILLS, MI 21,61321.6k $2.1m $2.1m 0.02% Reduced -2.1k -2,141
95 Select Equity Group, L.P. 0.01% of their portfolio NEW YORK, NY 21,34621.3k $2.0m $2.0m 0.01% Reduced -443 -443
96 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 21,27721.3k $2.0m $2.0m 0.00% Unchanged
97 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 20,80020.8k $2.0m $2.0m 0.00% Reduced -8.6k -8,600
98 State of Tennessee, Department of Treasury 0.01% of their portfolio NASHVILLE, TN 20,44620.4k $2.0m $2.0m 0.01% Unchanged
99 ABN AMRO INVESTMENT SOLUTIONS 0.03% of their portfolio PARIS CEDEX 008, I0 18,96719.0k $1.8m $1.8m 0.03% Reduced -2.2k -2,228
100 NATIXIS ADVISORS, LLC 0.00% of their portfolio Boston, MA 18,32118.3k $1.8m $1.8m 0.00% Added +70 +70