Vault-13

ALTAIR ENGR INC ALTR

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

217 institutional holders +22 vs Q3 2023
56,773,28656.8m shares reported held*
$4.8bnreported value*
38 new 76 added 69 reduced 22 sold out net bought ≈ $336.7m (+4.0m 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 ($3.3k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $84.13. Options: 6 managers hold calls ($16.8m notional), 5 hold puts ($4.8m).

Trends to Q4 2023

Institutional holders

Managers reporting a position, each quarter

0100200300Q3 22: 178Q4 22: 173Q1 23: 200Q2 23: 215Q3 23: 195Q4 23: 217217Q3 22Q4 22Q1 23Q2 23Q3 23Q4 23
Numbers
QuarterHolders
Q3 2022178
Q4 2022173
Q1 2023200
Q2 2023215
Q3 2023195
Q4 2023217

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 23
Numbers
QuarterBought or addedCut or sold out
Q4 20229393
Q1 202311278
Q2 202310796
Q3 202395100
Q4 202311491

Calls vs puts

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

CallsPuts
$0$5m$10m$15m$20mQ1 23 calls: $101.0kQ1 23 puts: $129.8kQ1 23P/C 1.29Q2 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 0.28
Numbers
QuarterCallsPutsP/C
Q1 2023$101.0k$129.8k1.29
Q2 2023$348.9k$424.1k1.22
Q3 2023$1.0m$31.3k0.03
Q4 2023$16.8m$4.8m0.28

Biggest buyers

T. Rowe Price Investment Management, Inc. New +1,108,457+1.1m
Matrix Capital Management Company, LP Added +932,717+932.7k
MORGAN STANLEY Added +880,700+880.7k
Bain Capital Public Equity Management II, LLC New +686,009+686.0k
AXA S.A. Added +674,976+675.0k
WELLINGTON MANAGEMENT GROUP LLP Added +583,127+583.1k
BlackRock Inc. Added +328,716+328.7k
Stephens Investment Management Group LLC New +148,423+148.4k
Thematics Asset Management Added +142,812+142.8k
PUTNAM INVESTMENTS LLC Added +91,579+91.6k

Biggest sellers

Pictet Asset Management Holding SA Reduced -604,000-604.0k
NORGES BANK Reduced -283,187-283.2k
Impax Asset Management Group plc Reduced -230,700-230.7k
MARSHALL WACE, LLP Reduced -167,421-167.4k
JANUS HENDERSON GROUP PLC Reduced -131,565-131.6k
RIPOSTE CAPITAL LLC Sold out -125,000-125.0k
Invesco Ltd. Reduced -120,156-120.2k
AMERIPRISE FINANCIAL INC Reduced -112,817-112.8k
FRED ALGER MANAGEMENT, LLC Reduced -100,457-100.5k
FRANKLIN RESOURCES INC Reduced -78,837-78.8k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $8.8m105.1k shares
PEAK6 Investments LLC New $3.9m46.7k shares
CITADEL ADVISORS LLC Added $1.8m21.0k shares
SIMPLEX TRADING, LLC Added $1.2m14.8k shares
ARDSLEY ADVISORY PARTNERS LP New $1.0m12.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $2.4m29.0k shares
CITADEL ADVISORS LLC Added $1.3m15.1k shares
SIMPLEX TRADING, LLC New $891.0k10.6k shares
PEAK6 Investments LLC New $176.7k2.1k 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, Q4 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Matrix Capital Management Company, LP 10.60% of their portfolio Portsmouth, NH 12,233,17412.2m $1.0bn $1.0bn 10.60% Added +932.7k +932,717
2 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 5,761,4455.8m $484.8m $484.8m 0.01% Added +33.5k +33,503
3 BlackRock Inc. 0.01% of their portfolio New York, NY 4,588,5074.6m $386.1m $386.1m 0.01% Added +328.7k +328,716
4 Pictet Asset Management Holding SA 0.28% of their portfolio CAROUGE, V8 2,966,8883.0m $249.7m $249.7m 0.28% Reduced -604.0k -604,000
5 Conestoga Capital Advisors, LLC 3.06% of their portfolio WAYNE, PA 2,424,7112.4m $204.0m $204.0m 3.06% Added +15.2k +15,200
6 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 2,098,9382.1m $176.6m $176.6m 0.01% Added +880.7k +880,700
7 Impax Asset Management Group plc 0.64% of their portfolio LONDON, X0 1,899,8501.9m $159.0m $159.0m 0.64% Reduced -230.7k -230,700
8 Invesco Ltd. 0.03% of their portfolio ATLANTA, GA 1,695,4091.7m $142.7m $142.7m 0.03% Reduced -120.2k -120,156
9 BAMCO INC /NY/ 0.36% of their portfolio NEW YORK, NY 1,585,5071.6m $133.4m $133.4m 0.36% Reduced -50.0k -50,000
10 AXA S.A. 0.21% of their portfolio PARIS, I0 1,513,7541.5m $127.4m $127.4m 0.21% Added +675.0k +674,976
11 ALLIANCEBERNSTEIN L.P. 0.05% of their portfolio NASHVILLE, TN 1,495,9281.5m $125.9m $125.9m 0.05% Added +8.7k +8,697
12 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 1,231,4101.2m $103.6m $103.6m 0.01% Added +66.0k +66,043
13 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 1,189,0021.2m $100.1m $100.1m 0.01% Added +68.1k +68,115
14 WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio Boston, MA 1,182,3391.2m $99.5m $99.5m 0.02% Added +583.1k +583,127
15 JANUS HENDERSON GROUP PLC 0.06% of their portfolio LONDON, X0 1,131,9051.1m $95.3m $95.3m 0.06% Reduced -131.6k -131,565
16 T. Rowe Price Investment Management, Inc. 0.06% of their portfolio BALTIMORE, MD 1,108,4571.1m $93.3m $93.3m 0.06% New
17 AMERIPRISE FINANCIAL INC 0.02% of their portfolio MINNEAPOLIS, MN 838,881838.9k $70.6m $70.6m 0.02% Reduced -112.8k -112,817
18 Bain Capital Public Equity Management II, LLC 2.55% of their portfolio Boston, MA 686,009686.0k $57.7m $57.7m 2.55% New
19 Aberdeen Group plc 0.12% of their portfolio EDINBURGH, X0 656,808656.8k $55.3m $55.3m 0.12% Reduced -5.7k -5,693
20 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 539,603539.6k $45.4m $45.4m 0.01% Reduced -1.4k -1,407
21 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 471,205471.2k $39.7m $39.7m 0.01% Added +17.0k +16,987
22 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 470,907470.9k $39.6m $39.6m 0.01% Added +9.7k +9,714
23 FRED ALGER MANAGEMENT, LLC 0.20% of their portfolio NEW YORK, NY 445,339445.3k $37.5m $37.5m 0.20% Reduced -100.5k -100,457
24 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 426,646426.6k $35.9m $35.9m 0.01% Added +11.1k +11,108
25 PRIMECAP MANAGEMENT CO/CA/ 0.03% of their portfolio PASADENA, CA 384,813384.8k $32.4m $32.4m 0.03% Reduced -39.3k -39,337
26 VICTORY CAPITAL MANAGEMENT INC 0.03% of their portfolio San Antonio, TX 382,629382.6k $32.2m $32.2m 0.03% Reduced -9.8k -9,785
27 PALISADE CAPITAL MANAGEMENT, LP 0.82% of their portfolio FORT LEE, NJ 367,036367.0k $30.9m $30.9m 0.82% Reduced -26.8k -26,802
28 PUTNAM INVESTMENTS LLC 0.04% of their portfolio BOSTON, MA 349,908349.9k $29.4m $29.4m 0.04% Added +91.6k +91,579
29 FEDERATED HERMES, INC. 0.07% of their portfolio PITTSBURGH, PA 342,551342.6k $28.8m $28.8m 0.07% Added +10.1k +10,131
30 Thematics Asset Management 1.21% of their portfolio PARIS, I0 328,520328.5k $27.6m $27.6m 1.21% Added +142.8k +142,812
31 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 270,634270.6k $22.8m $22.8m 0.00% Added +702 +702
32 NEUBERGER BERMAN GROUP LLC 0.02% of their portfolio NEW YORK, NY 245,183245.2k $20.6m $20.6m 0.02% Reduced -4.0k -4,017
33 Nuveen Asset Management, LLC 0.01% of their portfolio CHICAGO, IL 226,179226.2k $19.0m $19.0m 0.01% Added +9.2k +9,208
34 EAGLE ASSET MANAGEMENT INC 0.10% of their portfolio ST PETERSBURG, FL 211,021211.0k $17.8m $17.8m 0.10% Added +3.1k +3,088
35 COMERICA BANK 0.07% of their portfolio DALLAS, TX 177,007177.0k $14.9m $14.9m 0.07% Added +368 +368
36 MAIRS & POWER INC 0.14% of their portfolio St Paul, MN 160,198160.2k $13.5m $13.5m 0.14% Reduced -21.7k -21,730
37 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 158,274158.3k $13.3m $13.3m 0.00% Added +79.8k +79,795
38 Stephens Investment Management Group LLC 0.18% of their portfolio LITTLE ROCK, AR 148,423148.4k $12.5m $12.5m 0.18% New
39 AXIOM INVESTORS LLC /DE 0.12% of their portfolio GREENWICH, CT 145,471145.5k $12.2m $12.2m 0.12% Added +82.9k +82,881
40 RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio ST PETERSBURG, FL 135,861135.9k $11.4m $11.4m 0.01% Added +5.6k +5,562
41 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 135,284135.3k $11.4m $11.4m 0.01% Added +56.2k +56,184
42 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 127,295127.3k $10.7m $10.7m 0.01% Reduced -21.6k -21,617
43 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 122,840122.8k $10.3m $10.3m 0.01% Added +80.6k +80,560
44 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 122,825122.8k $10.3m $10.3m 0.00% Added +9.4k +9,362
45 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 121,614121.6k $10.2m $10.2m 0.01% Added +51.0k +50,974
46 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 119,612119.6k $10.1m $10.1m 0.01% Added +628 +628
47 Connor, Clark & Lunn Investment Management Ltd. 0.05% of their portfolio VANCOUVER, A1 114,798114.8k $9.7m $9.7m 0.05% Added +2.4k +2,383
48 STATE OF WISCONSIN INVESTMENT BOARD 0.03% of their portfolio MADISON, WI 113,946113.9k $9.6m $9.6m 0.03% Added +23.1k +23,058
49 KING LUTHER CAPITAL MANAGEMENT CORP 0.04% of their portfolio FORT WORTH, TX 107,603107.6k $9.1m $9.1m 0.04% Added +562 +562
50 BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio PARIS, I0 107,201107.2k $9.0m $9.0m 0.02% Reduced -46.1k -46,128
51 Swiss National Bank 0.01% of their portfolio ZURICH, V8 106,500106.5k $9.0m $9.0m 0.01% Reduced -10.9k -10,900
52 TWO SIGMA ADVISERS, LP 0.02% of their portfolio NEW YORK, NY 95,90095.9k $8.1m $8.1m 0.02% Reduced -49.4k -49,400
53 NORGES BANK 0.00% of their portfolio OSLO, Q8 95,55295.6k $8.0m $8.0m 0.00% Reduced -283.2k -283,187
54 NEEDHAM INVESTMENT MANAGEMENT LLC 1.01% of their portfolio NEW YORK, NY 94,80094.8k $8.0m $8.0m 1.01% Added +57.3k +57,300
55 Homestead Advisers Corp 0.20% of their portfolio Arlington, VA 94,47794.5k $8.0m $8.0m 0.20% Unchanged
56 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 92,04892.0k $7.7m $7.7m 0.00% Added +14.8k +14,807
57 NICHOLAS COMPANY, INC. 0.14% of their portfolio MILWAUKEE, WI 90,95591.0k $7.7m $7.7m 0.14% Unchanged
58 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 87,04587.0k $7.3m $7.3m 0.00% Added +57.7k +57,705
59 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 85,33585.3k $7.2m $7.2m 0.00% Added +66.2k +66,160
60 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.03% of their portfolio TORONTO, A6 85,00085.0k $7.2m $7.2m 0.03% Added +21.3k +21,300
61 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 77,09577.1k $6.5m $6.5m 0.01% Reduced -388 -388
62 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 76,82776.8k $6.5m $6.5m 0.00% Reduced -19.8k -19,810
63 Bain Capital Public Equity, LP 5.10% of their portfolio Boston, MA 75,77075.8k $6.4m $6.4m 5.10% New
64 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 73,98374.0k $6.2m $6.2m 0.00% Reduced -4.0k -3,977
65 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 61,87761.9k $5.2m $5.2m 0.00% Added +741 +741
66 Fisher Asset Management, LLC 0.00% of their portfolio PLANO, TX 61,49361.5k $5.2m $5.2m 0.00% Added +2.3k +2,301
67 ARK Investment Management LLC 0.03% of their portfolio ST. PETERSBURG, FL 60,34960.3k $5.1m $5.1m 0.03% Reduced -10.1k -10,125
68 SIT INVESTMENT ASSOCIATES INC 0.12% of their portfolio Minneapolis, MN 59,80859.8k $5.0m $5.0m 0.12% Unchanged
69 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 57,17557.2k $4.8m $4.8m 0.01% Reduced -64.9k -64,908
70 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 57,10457.1k $4.8m $4.8m 0.01% Reduced -2.0k -1,992
71 Legal & General Group Plc 0.00% of their portfolio London, X0 54,47354.5k $4.6m $4.6m 0.00% Added +3.0k +3,001
72 MERCER GLOBAL ADVISORS INC /ADV 0.01% of their portfolio DENVER, CO 50,63650.6k $4.3m $4.3m 0.01% Reduced -13.5k -13,495
73 Concentric Capital Strategies, LP 0.53% of their portfolio Stamford, CT 48,89548.9k $4.1m $4.1m 0.53% New
74 Select Equity Group, L.P. 0.01% of their portfolio NEW YORK, NY 40,15140.2k $3.4m $3.4m 0.01% Reduced -4.7k -4,656
75 Hillsdale Investment Management Inc. 0.27% of their portfolio Toronto, A6 38,62038.6k $3.2m $3.2m 0.27% Reduced -100 -100
76 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 37,49637.5k $3.2m $3.2m 0.01% Unchanged
77 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.04% of their portfolio New York, NY 36,97537.0k $3.1m $3.1m 0.04% Reduced -1.7k -1,689
78 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 30,22930.2k $2.5m $2.5m 0.00% Added +25.0k +24,969
79 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 29,69929.7k $2.5m $2.5m 0.00% Added +214 +214
80 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 28,64228.6k $2.4m $2.4m 0.00% New
81 MetLife Investment Management, LLC 0.02% of their portfolio Whippany, NJ 28,32828.3k $2.4m $2.4m 0.02% Unchanged
82 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 28,02028.0k $2.4m $2.4m 0.00% Added +2.4k +2,415
83 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 27,62427.6k $2.3m $2.3m 0.00% Reduced -380 -380
84 AMERICAN INTERNATIONAL GROUP, INC. 0.01% of their portfolio New York, NY 27,01827.0k $2.3m $2.3m 0.01% Added +189 +189
85 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 26,80026.8k $2.3m $2.3m 0.00% New
86 Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio SEOUL, M5 26,71126.7k $2.2m $2.2m 0.00% Reduced -824 -824
87 ExodusPoint Capital Management, LP 0.02% of their portfolio NEW YORK, NY 23,81823.8k $2.0m $2.0m 0.02% New
88 ARDSLEY ADVISORY PARTNERS LP 0.43% of their portfolio Norwalk, CT 23,50023.5k $2.0m $2.0m 0.43% New
89 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 22,35022.4k $1.9m $1.9m 0.00% Unchanged
90 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 22,22422.2k $1.9m $1.9m 0.01% Reduced -51.0k -51,009
91 Lisanti Capital Growth, LLC 0.44% of their portfolio NEW YORK, NY 22,10522.1k $1.9m $1.9m 0.44% New
92 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 21,90821.9k $1.8m $1.8m 0.00% Reduced -9.8k -9,786
93 TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.02% of their portfolio FRANKFORT, KY 21,47821.5k $1.8m $1.8m 0.02% Added +4.7k +4,712
94 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 20,07320.1k $1.7m $1.7m 0.00% Reduced -23.4k -23,378
95 Jefferies Financial Group Inc. 0.03% of their portfolio NEW YORK, NY 19,97820.0k $1.7m $1.7m 0.03% Added +3.0k +3,003
96 ZACKS INVESTMENT MANAGEMENT 0.02% of their portfolio Chicago, IL 19,03619.0k $1.6m $1.6m 0.02% Reduced -470 -470
97 Zions Bancorporation, N.A. 0.11% of their portfolio SALT LAKE CITY, UT 19,03419.0k $1.6m $1.6m 0.11% Added +1.2k +1,187
98 QRG CAPITAL MANAGEMENT, INC. 0.02% of their portfolio BERWYN, PA 18,75118.8k $1.6m $1.6m 0.02% Reduced -1.6k -1,580
99 STRS OHIO 0.01% of their portfolio COLUMBUS, OH 17,50017.5k $1.5m $1.5m 0.01% Added +8.5k +8,500
100 NATIXIS ADVISORS, LLC 0.00% of their portfolio Boston, MA 17,33317.3k $1.5m $1.5m 0.00% Added +229 +229