Vault-13

MATRIX SVC CO MTRX

COM · Common Stock · CUSIP 576853105

82 institutional holders -9 vs Q1 2023
20,750,46420.8m shares reported held*
76.7% of all shares outstanding*
$122.1mreported value*
7 new 21 added 39 reduced 15 sold out net sold ≈ $5.6m (-967.7k 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. Shares outstanding: 27.0m as of 2023-05-08, 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 ≈ $5.89. Options: 2 managers hold calls ($5.9k notional), 3 hold puts ($4.7k).

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 76Q4 22: 87Q1 23: 91Q2 23: 8282Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 202276
Q4 202287
Q1 202391
Q2 202382

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q4 22: 42 bought or addedQ4 22: 36 cut or sold outQ4 22Q1 23: 54 bought or addedQ1 23: 39 cut or sold outQ1 23Q2 23: 28 bought or addedQ2 23: 54 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 20224236
Q1 20235439
Q2 20232854

Calls vs puts

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

CallsPuts
$0$20k$40k$60k$80kQ3 22 calls: $0Q3 22 puts: $2.0kQ3 22P/C —Q4 22 calls: $8.1kQ4 22 puts: $1.2kQ4 22P/C 0.15Q1 23 calls: $66.4kQ1 23 puts: $9.2kQ1 23P/C 0.14Q2 23 calls: $5.9kQ2 23 puts: $4.7kQ2 23P/C 0.80
Numbers
QuarterCallsPutsP/C
Q3 2022$0$2.0k—
Q4 2022$8.1k$1.2k0.15
Q1 2023$66.4k$9.2k0.14
Q2 2023$5.9k$4.7k0.80

Biggest buyers

AMH Equity Ltd New +175,534+175.5k
1492 Capital Management LLC Added +138,261+138.3k
GENDELL JEFFREY L Added +120,958+121.0k
FIRST WILSHIRE SECURITIES MANAGEMENT INC Added +85,046+85.0k
Russell Investments Group, Ltd. Added +78,857+78.9k
WealthTrust Axiom LLC Added +51,250+51.2k
Bank of New York Mellon Corp Added +50,739+50.7k
GSA CAPITAL PARTNERS LLP New +43,268+43.3k
ESSEX INVESTMENT MANAGEMENT CO LLC Added +37,580+37.6k
Legato Capital Management LLC Added +32,512+32.5k

Biggest sellers

CM WEALTH ADVISORS LLC Sold out -304,596-304.6k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -154,085-154.1k
DIMENSIONAL FUND ADVISORS LP Reduced -144,683-144.7k
MILLENNIUM MANAGEMENT LLC Reduced -110,127-110.1k
INTRINSIC EDGE CAPITAL MANAGEMENT LLC Reduced -105,387-105.4k
MONEY CONCEPTS CAPITAL CORP Reduced -102,900-102.9k
Assenagon Asset Management S.A. Reduced -75,419-75.4k
MORGAN STANLEY Reduced -67,611-67.6k
D. E. Shaw & Co., Inc. Reduced -58,454-58.5k
JANE STREET GROUP, LLC Sold out -58,208-58.2k

Biggest calls

CITADEL ADVISORS LLC Added $5.9k1.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC Reduced $4.7k800 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC New $0100 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 -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 2023

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 21: 0 buyingQ3 21: 0 sellingQ4 21: 2 buyingQ4 21: 0 sellingQ4 21Q1 22: 1 buyingQ1 22: 0 sellingQ2 22: 0 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20212$152.3k0——
Q1 20221$49.6k0——
Q2 20220—0——
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——

None reported in Q2 2023.

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FIRST WILSHIRE SECURITIES MANAGEMENT INC 4.63% of their portfolio PASADENA, CA 2,293,5412.3m $13.5m $13.5m 4.63% Added +85.0k +85,046
2 Harvey Partners, LLC 1.21% of their portfolio Tarrytown, NY 1,657,0001.7m $9.8m $9.8m 1.21% Unchanged
3 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 1,418,4381.4m $8.4m $8.4m 0.00% Added +50.7k +50,739
4 ROYCE & ASSOCIATES LP 0.08% of their portfolio New York, NY 1,362,0581.4m $8.0m $8.0m 0.08% Unchanged
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 1,216,4831.2m $7.2m $7.2m 0.00% Reduced -5.0k -4,954
6 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 1,212,8591.2m $7.1m $7.1m 0.00% Reduced -144.7k -144,683
7 Azarias Capital Management, L.P. 5.95% of their portfolio West Chester, PA 1,208,3621.2m $7.1m $7.1m 5.95% Added +9.3k +9,315
8 AEGIS FINANCIAL CORP 4.91% of their portfolio MC LEAN, VA 1,197,9531.2m $7.1m $7.1m 4.91% Added +25.0k +25,000
9 BlackRock Inc. 0.00% of their portfolio New York, NY 1,000,7861.0m $5.9m $5.9m 0.00% Reduced -20.4k -20,407
10 GENDELL JEFFREY L 0.32% of their portfolio Greenwich, CT 695,559695.6k $4.1m $4.1m 0.32% Added +121.0k +120,958
11 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 607,019607.0k $3.6m $3.6m 0.00% Unchanged
12 Prescott Group Capital Management, L.L.C. 0.65% of their portfolio Tulsa, OK 501,406501.4k $3.0m $3.0m 0.65% Unchanged
13 WESTERLY CAPITAL MANAGEMENT, LLC 1.79% of their portfolio SAN FRANCISCO, CA 470,000470.0k $2.8m $2.8m 1.79% Reduced -40.0k -40,000
14 Boston Partners 0.00% of their portfolio BOSTON, MA 452,720452.7k $2.7m $2.7m 0.00% Added +6.6k +6,647
15 Stanley-Laman Group, Ltd. 0.40% of their portfolio Berwyn, PA 407,738407.7k $2.4m $2.4m 0.40% Added +4.2k +4,202
16 RBF Capital, LLC 0.12% of their portfolio RENO, NV 331,970332.0k $2.0m $2.0m 0.12% Unchanged
17 ESSEX INVESTMENT MANAGEMENT CO LLC 0.26% of their portfolio BOSTON, MA 317,000317.0k $1.9m $1.9m 0.26% Added +37.6k +37,580
18 ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio Boston, MA 297,712297.7k $1.8m $1.8m 0.01% Reduced -9.2k -9,199
19 INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.12% of their portfolio CHICAGO, IL 252,161252.2k $1.5m $1.5m 0.12% Reduced -105.4k -105,387
20 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 244,328244.3k $1.4m $1.4m 0.00% Reduced -15.1k -15,100
21 Nierenberg Investment Management Company, LLC 0.90% of their portfolio Camas, WA 222,555222.6k $1.3m $1.3m 0.90% Unchanged
22 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 207,646207.6k $1.2m $1.2m 0.00% Added +78.9k +78,857
23 JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio FLORHAM PARK, NJ 206,089206.1k $1.2m $1.2m 0.01% Reduced -31.9k -31,894
24 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 194,044194.0k $1.1m $1.1m 0.00% Reduced -44.3k -44,306
25 WealthTrust Axiom LLC 0.36% of their portfolio WAYNE, PA 183,500183.5k $1.1m $1.1m 0.36% Added +51.2k +51,250
26 NEEDHAM INVESTMENT MANAGEMENT LLC 0.17% of their portfolio NEW YORK, NY 178,300178.3k $1.1m $1.1m 0.17% Added +3.3k +3,300
27 AMH Equity Ltd 1.18% of their portfolio Great Neck, NY 175,534175.5k $1.0m $1.0m 1.18% New
28 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 161,290161.3k $950.0k $950.0k 0.00% Added +2.6k +2,574
29 1492 Capital Management LLC 0.51% of their portfolio MILWAUKEE, WI 149,912149.9k $883.0k $883.0k 0.51% Added +138.3k +138,261
30 Legato Capital Management LLC 0.10% of their portfolio San Francisco, CA 122,056122.1k $718.9k $718.9k 0.10% Added +32.5k +32,512
31 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 117,236117.2k $690.5k $690.5k 0.00% Reduced -58.5k -58,454
32 MONEY CONCEPTS CAPITAL CORP 0.06% of their portfolio PALM BEACH GARDENS, FL 105,770105.8k $623.0k $623.0k 0.06% Reduced -102.9k -102,900
33 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 94,83794.8k $558.6k $558.6k 0.00% Reduced -67.6k -67,611
34 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 93,69793.7k $551.9k $551.9k 0.00% Reduced -4.4k -4,400
35 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 91,94291.9k $541.5k $541.5k 0.00% Reduced -462 -462
36 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 85,89085.9k $505.9k $505.9k 0.00% Reduced -110.1k -110,127
37 Keene & Associates, Inc. 0.37% of their portfolio FORT WORTH, TX 81,28481.3k $478.8k $478.8k 0.37% Reduced -3.4k -3,424
38 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 80,90080.9k $476.5k $476.5k 0.00% Reduced -45.9k -45,900
39 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 78,93078.9k $464.9k $464.9k 0.00% Added +7.1k +7,143
40 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 72,22372.2k $425.4k $425.4k 0.00% Added +2.5k +2,523
41 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 63,80063.8k $375.8k $375.8k 0.01% Unchanged
42 272 Capital LP 0.14% of their portfolio DALLAS, TX 62,73662.7k $369.5k $369.5k 0.14% Unchanged
43 Pacific Ridge Capital Partners, LLC 0.08% of their portfolio LAKE OSWEGO, OR 60,81660.8k $358.2k $358.2k 0.08% Added +116 +116
44 BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 57,68057.7k $339.7k $339.7k 0.01% Reduced -12.7k -12,722
45 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 56,61056.6k $338.5k $338.5k 0.00% Added +28.6k +28,610
46 Assenagon Asset Management S.A. 0.00% of their portfolio SENNINGERBERG, N4 56,50056.5k $332.8k $332.8k 0.00% Reduced -75.4k -75,419
47 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 44,84244.8k $264.1k $264.1k 0.00% Reduced -19.1k -19,096
48 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 43,51143.5k $257.0k $257.0k 0.00% Added +4.8k +4,800
49 GSA CAPITAL PARTNERS LLP 0.03% of their portfolio LONDON, X0 43,26843.3k $255.0k $255.0k 0.03% New
50 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 41,40041.4k $243.8k $243.8k 0.00% Reduced -12.5k -12,500
51 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 36,27136.3k $213.6k $213.6k 0.00% Reduced -31.6k -31,625
52 Perritt Capital Management Inc 0.11% of their portfolio Chicago, IL 35,00035.0k $206.2k $206.2k 0.11% Unchanged
53 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 29,17629.2k $171.8k $171.8k 0.00% Reduced -41.1k -41,084
54 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 27,28427.3k $160.7k $160.7k 0.00% Reduced -500 -500
55 Trexquant Investment LP 0.00% of their portfolio STAMFORD, CT 22,24122.2k $131.0k $131.0k 0.00% New
56 OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio FORT LAUDERDALE, FL 18,50518.5k $109.0k $109.0k 0.01% Reduced -10.5k -10,485
57 WEDBUSH SECURITIES INC 0.01% of their portfolio PASADENA, CA 18,17118.2k $107.0k $107.0k 0.01% Reduced -260 -260
58 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio COLUMBUS, OH 17,34117.3k $102.0k $102.0k 0.00% Reduced -500 -500
59 Greenhaven Road Investment Management, L.P. 0.00% of their portfolio GREENWICH, CT 16,90016.9k $91 $91 0.00% New
60 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 15,55315.6k $91.6k $91.6k 0.00% Reduced -14.7k -14,703
61 CAXTON ASSOCIATES LP 0.01% of their portfolio NEW YORK, NY 14,99815.0k $88.3k $88.3k 0.01% Reduced -1.2k -1,200
62 Terril Brothers, Inc. 0.04% of their portfolio St. Louis, MO 14,16514.2k $83.4k $83.4k 0.04% Unchanged
63 PDT Partners, LLC 0.01% of their portfolio New York, NY 13,70213.7k $80.7k $80.7k 0.01% Reduced -393 -393
64 Brandywine Global Investment Management, LLC 0.00% of their portfolio PHILADELPHIA, PA 11,60711.6k $68.4k $68.4k 0.00% Reduced -11.6k -11,607
65 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 10,84710.8k $63.9k $63.9k 0.00% Unchanged
66 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 10,64510.6k $62.7k $62.7k 0.00% Reduced -19.3k -19,276
67 PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 0.00% of their portfolio DENVER, CO 10,59010.6k $62.0k $62.0k 0.00% Unchanged
68 ALGERT GLOBAL LLC 0.00% of their portfolio SAN FRANCISCO, CA 10,59010.6k $62.4k $62.4k 0.00% Reduced -1.6k -1,550
69 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 7,1477.1k $42.1k $42.1k 0.00% Reduced -6.0k -6,007
70 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 6,4206.4k $37.8k $37.8k 0.00% Reduced -21.8k -21,800
71 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 6,0236.0k $35.5k $35.5k 0.00% Reduced -27.8k -27,759
72 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 4,3004.3k $25.0k $25.0k 0.00% Unchanged
73 State of Wyoming 0.01% of their portfolio CHEYENNE, WY 3,7893.8k $22.3k $22.3k 0.01% New
74 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 2,6122.6k $15.4k $15.4k 0.00% Reduced -2.7k -2,688
75 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 2,0002.0k $11.8k $11.8k 0.00% Unchanged
76 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 1,6001.6k $9.4k $9.4k 0.00% New
77 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,3051.3k $7.7k $7.7k 0.00% New
78 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 661661 $3.0k $3.0k 0.00% Reduced -195 -195
79 FMR LLC 0.00% of their portfolio BOSTON, MA 635635 $3.7k $3.7k 0.00% Reduced -85 -85
80 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 300300 $1.8k $1.8k 0.00% Added +100 +100
81 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 195195 $1.1k $1.1k 0.00% Added +8 +8
82 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged