Vault-13

ALTAIR ENGR INC ALTR

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

234 institutional holders +17 vs Q4 2023
57,627,07057.6m shares reported held*
$5.0bnreported value*
37 new 87 added 76 reduced 21 sold out net bought ≈ $103.3m (+1.2m 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 ($120.2k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $86.12. Options: 7 managers hold calls ($24.2m notional), 5 hold puts ($8.1m).

Trends to Q1 2024

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 178Q4 22: 173Q1 23: 200Q2 23: 215Q3 23: 195Q4 23: 217Q1 24: 234234Q3 22Q1 23Q3 23Q1 24
Numbers
QuarterHolders
Q3 2022178
Q4 2022173
Q1 2023200
Q2 2023215
Q3 2023195
Q4 2023217
Q1 2024234

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 outQ4 22Q1 23: 112 bought or addedQ1 23: 78 cut or sold outQ1 23Q2 23: 107 bought or addedQ2 23: 96 cut or sold outQ2 23Q3 23: 95 bought or addedQ3 23: 100 cut or sold outQ3 23Q4 23: 114 bought or addedQ4 23: 91 cut or sold outQ4 23Q1 24: 124 bought or addedQ1 24: 97 cut or sold outQ1 24
Numbers
QuarterBought or addedCut or sold out
Q4 20229393
Q1 202311278
Q2 202310796
Q3 202395100
Q4 202311491
Q1 202412497

Calls vs puts

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

CallsPuts
$0$10m$20m$30mQ2 23 calls: $348.9kQ2 23 puts: $424.1kQ2 23P/C 1.22Q3 23 calls: $1.0mQ3 23 puts: $31.3kQ3 23P/C 0.03Q4 23 calls: $16.8mQ4 23 puts: $4.8mQ4 23P/C 0.28Q1 24 calls: $24.2mQ1 24 puts: $8.1mQ1 24P/C 0.34
Numbers
QuarterCallsPutsP/C
Q2 2023$348.9k$424.1k1.22
Q3 2023$1.0m$31.3k0.03
Q4 2023$16.8m$4.8m0.28
Q1 2024$24.2m$8.1m0.34

Biggest buyers

BlackRock Inc. Added +694,480+694.5k
FRANKLIN RESOURCES INC Added +581,132+581.1k
Candriam S.C.A. New +434,749+434.7k
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ New +316,040+316.0k
MORGAN STANLEY Added +303,753+303.8k
JANE STREET GROUP, LLC Added +275,030+275.0k
Stephens Investment Management Group LLC Added +223,710+223.7k
Alyeska Investment Group, L.P. New +220,769+220.8k
Matrix Capital Management Company, LP Added +196,826+196.8k
T. Rowe Price Investment Management, Inc. Added +196,218+196.2k

Biggest sellers

AXA S.A. Reduced -785,387-785.4k
Bain Capital Public Equity Management II, LLC Sold out -686,009-686.0k
WELLINGTON MANAGEMENT GROUP LLP Reduced -439,602-439.6k
Pictet Asset Management Holding SA Reduced -343,899-343.9k
Impax Asset Management Group plc Reduced -240,401-240.4k
BAMCO INC /NY/ Reduced -200,000-200.0k
Invesco Ltd. Reduced -129,171-129.2k
VICTORY CAPITAL MANAGEMENT INC Reduced -116,820-116.8k
ALLIANCEBERNSTEIN L.P. Reduced -112,207-112.2k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -85,000-85.0k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $13.5m156.7k shares
JPMORGAN CHASE & CO New $6.3m73.4k shares
PEAK6 Investments LLC Reduced $2.0m22.7k shares
SIMPLEX TRADING, LLC Reduced $956.0k11.1k shares
CITADEL ADVISORS LLC Reduced $827.0k9.6k shares
GROUP ONE TRADING LLC New $628.9k7.3k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $3.1m36.2k shares
SIMPLEX TRADING, LLC Added $2.5m28.7k shares
CITADEL ADVISORS LLC Added $1.8m20.5k shares
PEAK6 Investments LLC Added $749.5k8.7k 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, Q1 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Matrix Capital Management Company, LP 9.95% of their portfolio Portsmouth, NH 12,430,00012.4m $1.1bn $1.1bn 9.95% Added +196.8k +196,826
2 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 5,944,2855.9m $512.1m $512.1m 0.01% Added +182.8k +182,840
3 BlackRock Inc. 0.01% of their portfolio New York, NY 5,282,9875.3m $455.1m $455.1m 0.01% Added +694.5k +694,480
4 Pictet Asset Management Holding SA 0.25% of their portfolio CAROUGE, V8 2,622,9892.6m $226.0m $226.0m 0.25% Reduced -343.9k -343,899
5 Conestoga Capital Advisors, LLC 3.04% of their portfolio WAYNE, PA 2,440,0812.4m $210.2m $210.2m 3.04% Added +15.4k +15,370
6 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 2,402,6912.4m $207.0m $207.0m 0.01% Added +303.8k +303,753
7 Impax Asset Management Group plc 0.54% of their portfolio LONDON, X0 1,659,4491.7m $142.1m $142.1m 0.54% Reduced -240.4k -240,401
8 Invesco Ltd. 0.03% of their portfolio ATLANTA, GA 1,566,2381.6m $134.9m $134.9m 0.03% Reduced -129.2k -129,171
9 BAMCO INC /NY/ 0.32% of their portfolio NEW YORK, NY 1,385,5071.4m $119.4m $119.4m 0.32% Reduced -200.0k -200,000
10 ALLIANCEBERNSTEIN L.P. 0.04% of their portfolio NASHVILLE, TN 1,383,7211.4m $119.2m $119.2m 0.04% Reduced -112.2k -112,207
11 T. Rowe Price Investment Management, Inc. 0.07% of their portfolio BALTIMORE, MD 1,304,6751.3m $112.4m $112.4m 0.07% Added +196.2k +196,218
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,254,6961.3m $108.1m $108.1m 0.00% Added +23.3k +23,286
13 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 1,233,0611.2m $106.2m $106.2m 0.01% Added +44.1k +44,059
14 JANUS HENDERSON GROUP PLC 0.05% of their portfolio LONDON, X0 1,067,9911.1m $92.0m $92.0m 0.05% Reduced -63.9k -63,914
15 AMERIPRISE FINANCIAL INC 0.02% of their portfolio MINNEAPOLIS, MN 847,382847.4k $73.0m $73.0m 0.02% Added +8.5k +8,501
16 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 742,737742.7k $64.0m $64.0m 0.01% Reduced -439.6k -439,602
17 AXA S.A. 0.19% of their portfolio PARIS, I0 728,367728.4k $62.7m $62.7m 0.19% Reduced -785.4k -785,387
18 Aberdeen Group plc 0.11% of their portfolio EDINBURGH, X0 656,808656.8k $56.6m $56.6m 0.11% Unchanged
19 FRANKLIN RESOURCES INC 0.02% of their portfolio San Mateo, CA 585,871585.9k $50.5m $50.5m 0.02% Added +581.1k +581,132
20 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 534,746534.7k $46.1m $46.1m 0.01% Reduced -4.9k -4,857
21 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 476,581476.6k $41.1m $41.1m 0.01% Added +5.7k +5,674
22 FRED ALGER MANAGEMENT, LLC 0.20% of their portfolio NEW YORK, NY 464,512464.5k $40.0m $40.0m 0.20% Added +19.2k +19,173
23 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 445,590445.6k $38.4m $38.4m 0.01% Reduced -25.6k -25,615
24 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 435,391435.4k $37.5m $37.5m 0.01% Added +8.7k +8,745
25 Candriam S.C.A. 0.24% of their portfolio STRASSEN, N4 434,749434.7k $37.5m $37.5m 0.24% New
26 Thematics Asset Management 1.35% of their portfolio PARIS, I0 376,281376.3k $32.4m $32.4m 1.35% Added +47.8k +47,761
27 FEDERATED HERMES, INC. 0.07% of their portfolio PITTSBURGH, PA 374,530374.5k $32.3m $32.3m 0.07% Added +32.0k +31,979
28 PRIMECAP MANAGEMENT CO/CA/ 0.02% of their portfolio PASADENA, CA 373,133373.1k $32.1m $32.1m 0.02% Reduced -11.7k -11,680
29 Stephens Investment Management Group LLC 0.43% of their portfolio LITTLE ROCK, AR 372,133372.1k $32.1m $32.1m 0.43% Added +223.7k +223,710
30 PALISADE CAPITAL MANAGEMENT, LP 0.82% of their portfolio FORT LEE, NJ 362,372362.4k $31.2m $31.2m 0.82% Reduced -4.7k -4,664
31 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio Boston, MA 316,040316.0k $27.2m $27.2m 0.01% New
32 JANE STREET GROUP, LLC 0.03% of their portfolio NEW YORK, NY 303,672303.7k $26.2m $26.2m 0.03% Added +275.0k +275,030
33 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 276,100276.1k $23.8m $23.8m 0.02% Added +30.9k +30,917
34 VICTORY CAPITAL MANAGEMENT INC 0.02% of their portfolio San Antonio, TX 265,809265.8k $22.9m $22.9m 0.02% Reduced -116.8k -116,820
35 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 256,661256.7k $22.1m $22.1m 0.00% Reduced -14.0k -13,973
36 Nuveen Asset Management, LLC 0.01% of their portfolio CHICAGO, IL 235,253235.3k $20.3m $20.3m 0.01% Added +9.1k +9,074
37 Fisher Asset Management, LLC 0.01% of their portfolio PLANO, TX 220,862220.9k $19.0m $19.0m 0.01% Added +159.4k +159,369
38 Alyeska Investment Group, L.P. 0.12% of their portfolio CHICAGO, IL 220,769220.8k $19.0m $19.0m 0.12% New
39 EAGLE ASSET MANAGEMENT INC 0.08% of their portfolio ST PETERSBURG, FL 186,552186.6k $15.9m $15.9m 0.08% Reduced -24.5k -24,469
40 COMERICA BANK 0.07% of their portfolio DALLAS, TX 178,601178.6k $15.4m $15.4m 0.07% Added +1.6k +1,594
41 KING LUTHER CAPITAL MANAGEMENT CORP 0.06% of their portfolio FORT WORTH, TX 156,903156.9k $13.5m $13.5m 0.06% Added +49.3k +49,300
42 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 152,278152.3k $13.1m $13.1m 0.00% Reduced -6.0k -5,996
43 NEEDHAM INVESTMENT MANAGEMENT LLC 1.17% of their portfolio NEW YORK, NY 146,750146.8k $12.6m $12.6m 1.17% Added +52.0k +51,950
44 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 140,702140.7k $12.1m $12.1m 0.00% Added +17.9k +17,877
45 MAIRS & POWER INC 0.12% of their portfolio St Paul, MN 138,788138.8k $12.0m $12.0m 0.12% Reduced -21.4k -21,410
46 RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio ST PETERSBURG, FL 135,226135.2k $11.6m $11.6m 0.01% Reduced -635 -635
47 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 131,954132.0k $11.4m $11.4m 0.01% Reduced -3.3k -3,330
48 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 119,620119.6k $10.3m $10.3m 0.01% Added +8 +8
49 AXIOM INVESTORS LLC /DE 0.09% of their portfolio GREENWICH, CT 118,705118.7k $10.2m $10.2m 0.09% Reduced -26.8k -26,766
50 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 113,636113.6k $9.8m $9.8m 0.01% Reduced -13.7k -13,659
51 Trexquant Investment LP 0.19% of their portfolio STAMFORD, CT 112,826112.8k $9.7m $9.7m 0.19% Added +103.2k +103,186
52 Swiss National Bank 0.01% of their portfolio ZURICH, V8 107,800107.8k $9.3m $9.3m 0.01% Added +1.3k +1,300
53 STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio MADISON, WI 107,218107.2k $9.2m $9.2m 0.02% Reduced -6.7k -6,728
54 UBS Group AG 0.00% of their portfolio ZURICH, V8 104,120104.1k $9.0m $9.0m 0.00% Added +102.9k +102,904
55 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 104,046104.0k $9.0m $9.0m 0.01% Reduced -3.2k -3,155
56 ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio Boston, MA 99,35199.4k $8.6m $8.6m 0.03% Added +92.3k +92,302
57 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 96,77296.8k $8.3m $8.3m 0.01% Reduced -24.8k -24,842
58 Homestead Advisers Corp 0.19% of their portfolio Arlington, VA 94,47794.5k $8.1m $8.1m 0.19% Unchanged
59 NORGES BANK 0.00% of their portfolio OSLO, Q8 94,14894.1k $8.1m $8.1m 0.00% Reduced -1.4k -1,404
60 Balyasny Asset Management L.P. 0.02% of their portfolio Chicago, IL 90,96891.0k $7.8m $7.8m 0.02% Added +68.7k +68,744
61 NICHOLAS COMPANY, INC. 0.13% of their portfolio MILWAUKEE, WI 90,95591.0k $7.8m $7.8m 0.13% Unchanged
62 Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio VANCOUVER, A1 87,86287.9k $7.6m $7.6m 0.03% Reduced -26.9k -26,936
63 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 83,70083.7k $7.2m $7.2m 0.01% Added +75.8k +75,773
64 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 79,73979.7k $6.9m $6.9m 0.00% New
65 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 78,68278.7k $6.8m $6.8m 0.01% Added +1.6k +1,587
66 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 78,10978.1k $6.7m $6.7m 0.00% Added +1.3k +1,282
67 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 72,59072.6k $6.3m $6.3m 0.00% Reduced -1.4k -1,393
68 Squarepoint Ops LLC 0.02% of their portfolio NEW YORK, NY 66,66966.7k $5.7m $5.7m 0.02% Added +59.5k +59,479
69 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 65,55665.6k $5.6m $5.6m 0.00% Reduced -26.5k -26,492
70 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 63,52063.5k $5.5m $5.5m 0.00% Added +1.6k +1,643
71 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 62,90062.9k $5.4m $5.4m 0.00% Reduced -59.9k -59,940
72 SIT INVESTMENT ASSOCIATES INC 0.12% of their portfolio Minneapolis, MN 59,64359.6k $5.1m $5.1m 0.12% Reduced -165 -165
73 Legal & General Group Plc 0.00% of their portfolio London, X0 56,22556.2k $4.8m $4.8m 0.00% Added +1.8k +1,752
74 ARK Investment Management LLC 0.03% of their portfolio ST. PETERSBURG, FL 55,82455.8k $4.8m $4.8m 0.03% Reduced -4.5k -4,525
75 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 55,02355.0k $4.7m $4.7m 0.01% Reduced -2.2k -2,152
76 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 54,64254.6k $4.7m $4.7m 0.01% Reduced -2.5k -2,462
77 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 53,97854.0k $4.7m $4.7m 0.00% New
78 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 49,78749.8k $4.3m $4.3m 0.00% Reduced -35.5k -35,548
79 Carlson Capital, L.P. 0.29% of their portfolio DALLAS, TX 42,10142.1k $3.6m $3.6m 0.29% New
80 Hillsdale Investment Management Inc. 0.29% of their portfolio Toronto, A6 41,92041.9k $3.6m $3.6m 0.29% Added +3.3k +3,300
81 California Public Employees Retirement System 0.00% of their portfolio Sacramento, CA 41,89441.9k $3.6m $3.6m 0.00% New
82 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 35,58735.6k $3.1m $3.1m 0.00% Added +7.6k +7,567
83 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 34,68534.7k $3.0m $3.0m 0.01% Reduced -2.8k -2,811
84 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio New York, NY 34,19534.2k $2.9m $2.9m 0.03% Reduced -2.8k -2,780
85 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 32,00032.0k $2.8m $2.8m 0.00% Added +5.2k +5,200
86 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 31,71531.7k $2.7m $2.7m 0.00% Added +2.0k +2,016
87 Epoch Investment Partners, Inc. 0.01% of their portfolio New York, NY 31,64731.6k $2.7m $2.7m 0.01% New
88 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 31,04331.0k $2.7m $2.7m 0.00% Added +30.5k +30,495
89 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 30,81330.8k $2.7m $2.7m 0.00% Added +8.9k +8,905
90 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 29,87129.9k $2.6m $2.6m 0.00% Added +2.2k +2,247
91 Moody Aldrich Partners LLC 0.43% of their portfolio MARBLEHEAD, MA 29,49429.5k $2.5m $2.5m 0.43% New
92 MetLife Investment Management, LLC 0.02% of their portfolio Whippany, NJ 27,86327.9k $2.4m $2.4m 0.02% Reduced -465 -465
93 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 27,58527.6k $2.4m $2.4m 0.00% Added +15.8k +15,776
94 AMERICAN INTERNATIONAL GROUP, INC. 0.01% of their portfolio New York, NY 27,06427.1k $2.3m $2.3m 0.01% Added +46 +46
95 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 26,30026.3k $2.3m $2.3m 0.01% Reduced -69.6k -69,600
96 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 25,74425.7k $2.2m $2.2m 0.00% Reduced -61.3k -61,301
97 GSA CAPITAL PARTNERS LLP 0.17% of their portfolio LONDON, X0 24,85224.9k $2.1m $2.1m 0.17% Added +19.4k +19,401
98 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 24,79724.8k $2.1m $2.1m 0.00% Reduced -5.4k -5,432
99 Jefferies Financial Group Inc. 0.04% of their portfolio NEW YORK, NY 24,39724.4k $2.1m $2.1m 0.04% Added +4.4k +4,419
100 PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio DES MOINES, IA 24,35724.4k $2.1m $2.1m 0.00% Added +18.1k +18,089