Vault-13

MATRIX SVC CO MTRX

COM · Common Stock · CUSIP 576853105

126 institutional holders +3 vs Q1 2025
24,037,93124.0m shares reported held*
87.1% of all shares outstanding*
$324.8mreported value*
18 new 46 added 42 reduced 16 sold out net bought ≈ $7.3m (+538.4k 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 ($1.9m this quarter). Holder counts are more reliable. Shares outstanding: 27.6m as of 2025-05-07, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $13.51. Options: 4 managers hold calls ($2.2m notional), 1 hold puts ($0).

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 76Q4 22: 87Q1 23: 91Q2 23: 82Q3 23: 88Q4 23: 104Q1 24: 111Q2 24: 113Q3 24: 118Q4 24: 124Q1 25: 123Q2 25: 126126Q3 22Q2 23Q1 24Q4 24Q2 25
Numbers
QuarterHolders
Q3 202276
Q4 202287
Q1 202391
Q2 202382
Q3 202388
Q4 2023104
Q1 2024111
Q2 2024113
Q3 2024118
Q4 2024124
Q1 2025123
Q2 2025126

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q3 23: 46 bought or addedQ3 23: 40 cut or sold outQ4 23: 65 bought or addedQ4 23: 37 cut or sold outQ4 23Q1 24: 60 bought or addedQ1 24: 49 cut or sold outQ2 24: 61 bought or addedQ2 24: 61 cut or sold outQ2 24Q3 24: 69 bought or addedQ3 24: 42 cut or sold outQ4 24: 55 bought or addedQ4 24: 57 cut or sold outQ4 24Q1 25: 62 bought or addedQ1 25: 59 cut or sold outQ2 25: 64 bought or addedQ2 25: 58 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q3 20234640
Q4 20236537
Q1 20246049
Q2 20246161
Q3 20246942
Q4 20245557
Q1 20256259
Q2 20256458

Calls vs puts

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

CallsPuts
$0$1m$2m$3mQ3 24 calls: $48.3kQ3 24 puts: $5.8kQ3 24P/C 0.12Q4 24 calls: $32.3kQ4 24 puts: $62.2kQ4 24P/C 1.93Q1 25 calls: $1.4mQ1 25 puts: $11.2kQ1 25P/C 0.01Q2 25 calls: $2.2mQ2 25 puts: $0Q2 25P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2024$48.3k$5.8k0.12
Q4 2024$32.3k$62.2k1.93
Q1 2025$1.4m$11.2k0.01
Q2 2025$2.2m$00.00

Biggest buyers

MILLENNIUM MANAGEMENT LLC New +430,207+430.2k
Boston Partners Added +352,194+352.2k
First Eagle Investment Management, LLC Added +192,000+192.0k
JPMORGAN CHASE & CO Added +158,104+158.1k
GOLDMAN SACHS GROUP INC Added +157,045+157.0k
JACOBS LEVY EQUITY MANAGEMENT, INC Added +145,154+145.2k
AMERICAN CENTURY COMPANIES INC Added +130,489+130.5k
VANGUARD GROUP INC Added +72,970+73.0k
Bank of New York Mellon Corp Added +64,187+64.2k
MORGAN STANLEY Added +63,973+64.0k

Biggest sellers

FIRST WILSHIRE SECURITIES MANAGEMENT INC Reduced -428,191-428.2k
CenterBook Partners LP Reduced -312,014-312.0k
Harvey Partners, LLC Reduced -311,238-311.2k
WESTERLY CAPITAL MANAGEMENT, LLC Reduced -198,000-198.0k
FRANKLIN RESOURCES INC Reduced -103,520-103.5k
ACK Asset Management LLC Reduced -97,000-97.0k
ALLIANCEBERNSTEIN L.P. Reduced -90,410-90.4k
Informed Momentum Co LLC Sold out -66,256-66.3k
ROYCE & ASSOCIATES LP Reduced -63,900-63.9k
DIMENSIONAL FUND ADVISORS LP Reduced -52,686-52.7k

Biggest calls

GROUP ONE TRADING LLC Added $1.2m88.6k shares
CITADEL ADVISORS LLC Reduced $972.7k72.0k shares
SIMPLEX TRADING, LLC Reduced $62.0k4.6k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

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 -5.6 pts · filed 2026-04-07 6.8% -5.6 pts 1.9m≈ $26.3m 2026-04-07
NEEDHAM INVESTMENT MANAGEMENT LLC 13G · passive investor new · filed 2025-02-13 5.2% new 1.4m≈ $19.5m 2025-02-13

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q2 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q3 23: 0 buyingQ3 23: 1 sellingQ4 23: 0 buyingQ4 23: 2 sellingQ4 23Q1 24: 0 buyingQ1 24: 2 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24Q3 24: 0 buyingQ3 24: 1 sellingQ4 24: 0 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 0 sellingQ2 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20230—1$90.0k—
Q4 20230—2$145.5k—
Q1 20240—2$233.4k—
Q2 20240—0——
Q3 20240—1$46.0k—
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——

None reported in Q2 2025.

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock, Inc. 0.00% of their portfolio New York, NY 3,276,2953.3m $44.3m $44.3m 0.00% Added +61.6k +61,599
2 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,461,9881.5m $19.8m $19.8m 0.00% Added +73.0k +72,970
3 NEEDHAM INVESTMENT MANAGEMENT LLC 1.53% of their portfolio NEW YORK, NY 1,420,0001.4m $19.2m $19.2m 1.53% Unchanged
4 Harvey Partners, LLC 1.65% of their portfolio Tarrytown, NY 1,221,7621.2m $16.5m $16.5m 1.65% Reduced -311.2k -311,238
5 ACK Asset Management LLC 1.93% of their portfolio GREENWICH, CT 1,087,1001.1m $14.7m $14.7m 1.93% Reduced -97.0k -97,000
6 FIRST WILSHIRE SECURITIES MANAGEMENT INC 3.31% of their portfolio PASADENA, CA 901,008901.0k $12.2m $12.2m 3.31% Reduced -428.2k -428,191
7 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 894,238894.2k $12.1m $12.1m 0.00% Reduced -52.7k -52,686
8 Boston Partners 0.01% of their portfolio BOSTON, MA 844,966845.0k $11.4m $11.4m 0.01% Added +352.2k +352,194
9 WESTERLY CAPITAL MANAGEMENT, LLC 4.69% of their portfolio SAN FRANCISCO, CA 820,000820.0k $11.1m $11.1m 4.69% Reduced -198.0k -198,000
10 ROYCE & ASSOCIATES LP 0.10% of their portfolio New York, NY 707,307707.3k $9.6m $9.6m 0.10% Reduced -63.9k -63,900
11 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 671,398671.4k $9.1m $9.1m 0.00% Added +130.5k +130,489
12 Azarias Capital Management, L.P. 3.85% of their portfolio West Chester, PA 627,766627.8k $8.5m $8.5m 3.85% Added +56.6k +56,611
13 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 620,275620.3k $8.4m $8.4m 0.00% Added +3.4k +3,358
14 GENDELL JEFFREY L 0.22% of their portfolio Greenwich, CT 614,409614.4k $8.3m $8.3m 0.22% Added +17.3k +17,291
15 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 544,034544.0k $7.3m $7.3m 0.00% Added +58.9k +58,914
16 First Eagle Investment Management, LLC 0.01% of their portfolio NEW YORK, NY 509,194509.2k $6.9m $6.9m 0.01% Added +192.0k +192,000
17 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 467,572467.6k $6.3m $6.3m 0.00% Added +64.2k +64,187
18 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 430,207430.2k $5.8m $5.8m 0.01% New
19 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 332,781332.8k $4.5m $4.5m 0.00% Added +157.0k +157,045
20 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 327,710327.7k $4.4m $4.4m 0.01% Added +12.4k +12,437
21 JACOBS LEVY EQUITY MANAGEMENT, INC 0.02% of their portfolio FLORHAM PARK, NJ 309,910309.9k $4.2m $4.2m 0.02% Added +145.2k +145,154
22 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 297,194297.2k $4.0m $4.0m 0.00% Added +5.4k +5,390
23 Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio VANCOUVER, A1 286,186286.2k $3.9m $3.9m 0.01% Added +24.3k +24,330
24 ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio Boston, MA 280,394280.4k $3.8m $3.8m 0.01% Added +38.2k +38,233
25 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 248,417248.4k $3.4m $3.4m 0.00% Added +57.8k +57,822
26 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 240,484240.5k $3.2m $3.2m 0.00% Reduced -7.1k -7,111
27 De Lisle Partners LLP 0.45% of their portfolio POOLE, X0 237,935237.9k $3.2m $3.2m 0.45% Unchanged
28 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 236,987237.0k $3.2m $3.2m 0.00% Added +63.0k +62,989
29 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 233,200233.2k $3.2m $3.2m 0.00% Added +17.4k +17,400
30 CenterBook Partners LP 0.17% of their portfolio GREENWICH, CT 224,433224.4k $3.0m $3.0m 0.17% Reduced -312.0k -312,014
31 OBERWEIS ASSET MANAGEMENT INC/ 0.13% of their portfolio LISLE, IL 221,075221.1k $3.0m $3.0m 0.13% Unchanged
32 Stanley-Laman Group, Ltd. 0.44% of their portfolio Berwyn, PA 218,613218.6k $3.0m $3.0m 0.44% Reduced -16.7k -16,695
33 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 212,921212.9k $2.9m $2.9m 0.00% Added +158.1k +158,104
34 ESSEX INVESTMENT MANAGEMENT CO LLC 0.50% of their portfolio BOSTON, MA 205,496205.5k $2.8m $2.8m 0.50% Reduced -1.5k -1,489
35 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 203,750203.8k $2.8m $2.8m 0.00% Added +64.0k +63,973
36 1492 Capital Management LLC 0.97% of their portfolio MILWAUKEE, WI 156,539156.5k $2.1m $2.1m 0.97% Reduced -27.3k -27,313
37 PANAGORA ASSET MANAGEMENT INC 0.01% of their portfolio BOSTON, MA 149,707149.7k $2.0m $2.0m 0.01% Added +57.0k +56,970
38 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 134,771134.8k $1.8m $1.8m 0.00% Reduced -103.5k -103,520
39 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 116,198116.2k $1.6m $1.6m 0.00% Added +5.4k +5,401
40 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 112,613112.6k $1.5m $1.5m 0.00% Added +24.4k +24,354
41 MONEY CONCEPTS CAPITAL CORP 0.09% of their portfolio PALM BEACH GARDENS, FL 105,091105.1k $1.4m $1.4m 0.09% Reduced -612 -612
42 RBF Capital, LLC 0.07% of their portfolio RENO, NV 100,000100.0k $1.4m $1.4m 0.07% Reduced -1.2k -1,161
43 MARTINGALE ASSET MANAGEMENT L P 0.03% of their portfolio BOSTON, MA 93,17293.2k $1.3m $1.3m 0.03% Added +3.4k +3,381
44 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 86,81086.8k $1.2m $1.2m 0.00% Reduced -36.5k -36,529
45 Trexquant Investment LP 0.01% of their portfolio STAMFORD, CT 85,55085.5k $1.2m $1.2m 0.01% Reduced -17.1k -17,075
46 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 78,42278.4k $1.1m $1.1m 0.00% Added +2.5k +2,483
47 CARY STREET PARTNERS FINANCIAL LLC 0.03% of their portfolio RICHMOND, VA 76,35876.4k $1.0m $1.0m 0.03% Added +2.8k +2,827
48 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 70,67870.7k $954.9k $954.9k 0.00% Reduced -13.8k -13,814
49 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 68,80068.8k $929.5k $929.5k 0.00% Reduced -21.7k -21,740
50 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 63,83263.8k $862.4k $862.4k 0.00% Added +18.5k +18,477
51 WINTON GROUP Ltd 0.04% of their portfolio LONDON, X0 61,69361.7k $833.5k $833.5k 0.04% Added +44.4k +44,376
52 Legato Capital Management LLC 0.10% of their portfolio San Francisco, CA 61,01561.0k $824.3k $824.3k 0.10% Reduced -151 -151
53 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 59,15659.2k $800.0k $800.0k 0.00% Added +48.8k +48,785
54 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 53,40653.4k $722.0k $722.0k 0.00% Added +374 +374
55 UBS Group AG 0.00% of their portfolio ZURICH, V8 49,89249.9k $674.0k $674.0k 0.00% Reduced -1.5k -1,463
56 Jump Financial, LLC 0.01% of their portfolio Chicago, IL 45,74045.7k $617.9k $617.9k 0.01% New
57 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 43,96044.0k $593.9k $593.9k 0.01% New
58 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 43,29243.3k $584.9k $584.9k 0.00% Reduced -28.0k -28,042
59 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 41,51641.5k $560.9k $560.9k 0.00% Reduced -8.2k -8,167
60 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 39,70039.7k $536.3k $536.3k 0.00% Unchanged
61 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 39,63439.6k $535.4k $535.4k 0.00% Reduced -576 -576
62 Pacific Ridge Capital Partners, LLC 0.12% of their portfolio LAKE OSWEGO, OR 35,63535.6k $481.4k $481.4k 0.12% Unchanged
63 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 33,41433.4k $451.4k $451.4k 0.00% Reduced -574 -574
64 Assenagon Asset Management S.A. 0.00% of their portfolio SENNINGERBERG, N4 31,56431.6k $426.4k $426.4k 0.00% Reduced -2.5k -2,533
65 LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio LOS ANGELES, CA 30,51530.5k $412.3k $412.3k 0.00% Added +10.5k +10,535
66 XTX Topco Ltd 0.02% of their portfolio LONDON, X0 29,71029.7k $401.4k $401.4k 0.02% Added +13.8k +13,751
67 EntryPoint Capital, LLC 0.18% of their portfolio NEW YORK, NY 26,66326.7k $360.2k $360.2k 0.18% New
68 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 25,94525.9k $350.5k $350.5k 0.00% Reduced -4.3k -4,320
69 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 25,50025.5k $344.5k $344.5k 0.01% Unchanged
70 SATURNA CAPITAL CORP 0.00% of their portfolio BELLINGHAM, WA 23,85023.9k $322.2k $322.2k 0.00% Added +964 +964
71 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 23,52623.5k $317.8k $317.8k 0.00% New
72 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 22,23322.2k $300.4k $300.4k 0.00% Reduced -503 -503
73 Dynamic Technology Lab Private Ltd 0.04% of their portfolio SINGAPORE, U0 21,64921.6k $293.0k $293.0k 0.04% New
74 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 21,60021.6k $291.8k $291.8k 0.00% Reduced -1.0k -1,000
75 Verition Fund Management LLC 0.00% of their portfolio GREENWICH, CT 21,48421.5k $290.2k $290.2k 0.00% New
76 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 19,07319.1k $257.7k $257.7k 0.00% Reduced -21.0k -20,960
77 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 18,82118.8k $254.3k $254.3k 0.00% Reduced -15.7k -15,721
78 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 16,87716.9k $228.0k $228.0k 0.00% Added +14.2k +14,177
79 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 16,72316.7k $225.9k $225.9k 0.00% Added +130 +130
80 State of Wyoming 0.03% of their portfolio CHEYENNE, WY 16,70516.7k $225.7k $225.7k 0.03% Reduced -20.8k -20,760
81 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 16,38916.4k $221.4k $221.4k 0.00% New
82 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 15,18015.2k $205.1k $205.1k 0.00% Unchanged
83 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 15,17015.2k $204.9k $204.9k 0.00% Added +1.0k +1,025
84 Almanack Investment Partners, LLC. 0.03% of their portfolio WAYNE, PA 15,11915.1k $204.3k $204.3k 0.03% New
85 Man Group plc 0.00% of their portfolio LONDON, X0 14,97115.0k $202.3k $202.3k 0.00% New
86 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 14,95014.9k $202.0k $202.0k 0.00% Reduced -90.4k -90,410
87 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 14,86214.9k $200.8k $200.8k 0.00% Reduced -10.4k -10,384
88 Greenhaven Road Investment Management, L.P. 0.07% of their portfolio GREENWICH, CT 13,96914.0k $188.7k $188.7k 0.07% Unchanged
89 Y-Intercept (Hong Kong) Ltd 0.00% of their portfolio HONG KONG, K3 13,55013.6k $183.1k $183.1k 0.00% New
90 Creative Planning 0.00% of their portfolio OVERLAND PARK, KS 13,00613.0k $175.7k $175.7k 0.00% New
91 ALGERT GLOBAL LLC 0.00% of their portfolio SAN FRANCISCO, CA 11,91211.9k $160.9k $160.9k 0.00% Reduced -8.2k -8,178
92 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 10,11510.1k $136.7k $136.7k 0.00% New
93 CWM, LLC 0.00% of their portfolio OMAHA, NE 8,9118.9k $120.0k $120.0k 0.00% Reduced -1.1k -1,091
94 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 8,7008.7k $117.5k $117.5k 0.00% Unchanged
95 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 7,4427.4k $100.5k $100.5k 0.00% New
96 Wilmington Savings Fund Society, FSB 0.00% of their portfolio WILMINGTON, DE 7,0007.0k $94.6k $94.6k 0.00% Unchanged
97 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 6,1376.1k $82.9k $82.9k 0.00% Added +6.0k +6,016
98 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio DENVER, CO 5,5955.6k $76.0k $76.0k 0.00% Unchanged
99 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 5,3175.3k $71.8k $71.8k 0.00% Unchanged
100 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 3,3073.3k $44.7k $44.7k 0.00% Added +1.9k +1,893