Vault-13

MACOM TECH SOLUTIONS HLDGS I MTSI

COM · Common Stock · CUSIP 55405Y100 · ISIN US55405Y1001

American semiconductor manufacturer

238 institutional holders
52,881,41352.9m shares reported held*
74.8% of all shares outstanding*
$2.7bnreported value*

* 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 ($9.2m this quarter). Holder counts are more reliable. Shares outstanding: 70.7m as of 2022-11-10, 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 ≈ $51.80. Options: 8 managers hold calls ($12.0m notional), 6 hold puts ($6.3m).

Biggest calls

JANE STREET GROUP, LLC — $4.8m93.1k shares
Walleye Trading LLC — $3.1m60.2k shares
PEAK6 Investments LLC — $1.6m31.1k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $1.6m30.2k shares
CITADEL ADVISORS LLC — $585.0k11.3k shares
GROUP ONE TRADING LLC — $212.0k4.1k shares
SIMPLEX TRADING, LLC — $103.0k2.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $00 shares

Biggest puts

PEAK6 Investments LLC — $3.8m73.1k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $1.1m20.9k shares
CITADEL ADVISORS LLC — $1.0m19.3k shares
SIMPLEX TRADING, LLC — $269.0k5.2k shares
Walleye Trading LLC — $207.0k4.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. — $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
FMR LLC 13G · institution +3.4 pts · filed 2026-05-06 14.1% +3.4 pts 10.6m≈ $4.0bn 2026-05-06
BlackRock, Inc. 13G · institution +1.3 pts · filed 2026-07-08 10.4% +1.3 pts 8.0m≈ $3.0bn 2026-07-08
OCAMPO SUSAN 13G · exempt (held before listing) -2.7 pts · filed 2026-08-12 6.4% -2.7 pts 4.9m≈ $1.9bn 2026-08-12

Fell to 5% or below in the last year: T. Rowe Price Investment Management, Inc. (3.7%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q3 2022

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
10010Q4 20: 0 buyingQ4 20: 0 sellingQ1 21: 0 buyingQ1 21: 0 sellingQ1 21Q2 21: 0 buyingQ2 21: 0 sellingQ3 21: 0 buyingQ3 21: 0 sellingQ3 21Q4 21: 0 buyingQ4 21: 7 sellingQ1 22: 0 buyingQ1 22: 3 sellingQ1 22Q2 22: 0 buyingQ2 22: 4 sellingQ3 22: 0 buyingQ3 22: 7 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—7$27.5m—
Q1 20220—3$1.3m—
Q2 20220—4$883.9k—
Q3 20220—7$57.9m—
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-21 Dennehy Robert SVP, Operations Sold 2,000 $55.01 $110.0k2.0k shares -2%
2022-09-07 Dennehy Robert SVP, Operations Sold 2,000 $53.29 $106.6k2.0k shares -2%
2022-08-15 Hwang Donghyun Thomas SVP, Global Sales Sold 9,873 $66.55 $657.0k9.9k shares -10%
2022-08-15 None SVP, Technology Sold 3,394 $66.55 $225.9k3.4k shares -15%
2022-08-12 OCAMPO JOHN L +1 Director · By Ocampo Family Trust-2001 Sold 88,962 $62.82 $5.6m89.0k shares -1%
2022-08-09 Daly Stephen G President and CEO, director Sold 300 $60.01 $18.0k300 shares -<1%
2022-08-08 CHUNG PETER Y Director · See Remarks Sold 850,311 $59.00 $50.2m850.3k shares -95%
2022-08-08 OCAMPO JOHN L +1 Director · By Ocampo Family Trust-2001 Sold 5,000 $61.24 $306.2k5.0k shares -<1%
2022-08-05 OCAMPO JOHN L +1 Director · By Ocampo Family Trust-2001 Sold 5,000 $61.52 $307.6k5.0k shares -<1%
2022-08-04 OCAMPO JOHN L +1 Director · By Ocampo Family Trust-2001 Sold 5,000 $61.54 $307.7k5.0k shares -<1%
2022-08-04 Kober John Senior VP and CFO Sold 2,153 $60.80 $130.9k2.2k shares -3%
2022-08-02 Daly Stephen G President and CEO, director Sold 100 $57.49 $5.7k100 shares -<1%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q3 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.01% of their portfolio New York, NY 6,028,0316.0m $312.2m $312.2m 0.01% —
2 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 5,204,5555.2m $269.5m $269.5m 0.01% —
3 FMR LLC 0.02% of their portfolio BOSTON, MA 3,758,9343.8m $194.7m $194.7m 0.02% —
4 ALLIANCEBERNSTEIN L.P. 0.09% of their portfolio NASHVILLE, TN 3,449,9003.4m $178.7m $178.7m 0.09% —
5 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 2,133,3212.1m $110.5m $110.5m 0.01% —
6 PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio BALTIMORE, MD 1,961,6612.0m $101.6m $101.6m 0.02% —
7 VICTORY CAPITAL MANAGEMENT INC 0.11% of their portfolio San Antonio, TX 1,858,0531.9m $96.2m $96.2m 0.11% —
8 JPMORGAN CHASE & CO 0.01% of their portfolio NEW YORK, NY 1,415,0901.4m $73.3m $73.3m 0.01% —
9 NEUBERGER BERMAN GROUP LLC 0.07% of their portfolio NEW YORK, NY 1,336,2451.3m $69.3m $69.3m 0.07% —
10 Capital Research Global Investors 0.02% of their portfolio Los Angeles, CA 1,330,0001.3m $68.9m $68.9m 0.02% —
11 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 1,231,2371.2m $63.8m $63.8m 0.02% —
12 GW&K Investment Management, LLC 0.65% of their portfolio BOSTON, MA 1,138,3511.1m $59.0m $59.0m 0.65% —
13 Invesco Ltd. 0.02% of their portfolio ATLANTA, GA 961,857961.9k $49.8m $49.8m 0.02% —
14 Aristotle Capital Boston, LLC 1.66% of their portfolio BOSTON, MA 946,587946.6k $49.0m $49.0m 1.66% —
15 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 937,207937.2k $48.5m $48.5m 0.01% —
16 LOOMIS SAYLES & CO L P 0.10% of their portfolio BOSTON, MA 910,852910.9k $47.2m $47.2m 0.10% —
17 MACQUARIE GROUP LTD 0.05% of their portfolio Sydney, NSW 2000, C3 824,836824.8k $42.7m $42.7m 0.05% —
18 DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio AUSTIN, TX 801,246801.2k $41.5m $41.5m 0.02% —
19 FRONTIER CAPITAL MANAGEMENT CO LLC 0.46% of their portfolio Boston, MA 753,220753.2k $39.0m $39.0m 0.46% —
20 TimesSquare Capital Management, LLC 0.54% of their portfolio NEW YORK, NY 753,220753.2k $39.0m $39.0m 0.54% —
21 D. E. Shaw & Co., Inc. 0.07% of their portfolio New York, NY 748,219748.2k $38.8m $38.8m 0.07% —
22 Polar Asset Management Partners Inc. 0.50% of their portfolio TORONTO, A6 732,466732.5k $37.9m $37.9m 0.50% —
23 EMERALD ADVISERS, LLC 1.85% of their portfolio LEOLA, PA 691,556691.6k $35.8m $35.8m 1.85% —
24 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 646,901646.9k $33.5m $33.5m 0.01% —
25 Nuveen Asset Management, LLC 0.01% of their portfolio CHICAGO, IL 594,190594.2k $30.8m $30.8m 0.01% —
26 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio Toronto, A6 581,360581.4k $30.1m $30.1m 0.02% —
27 JENNISON ASSOCIATES LLC 0.03% of their portfolio NEW YORK, NY 573,602573.6k $29.7m $29.7m 0.03% —
28 EMERALD MUTUAL FUND ADVISERS TRUST 1.81% of their portfolio LEOLA, PA 553,616553.6k $28.7m $28.7m 1.81% —
29 SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio London, X0 515,745515.7k $26.7m $26.7m 0.04% —
30 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 507,452507.5k $26.3m $26.3m 0.01% —
31 Artisan Partners Limited Partnership 0.04% of their portfolio Milwaukee, WI 460,471460.5k $23.8m $23.8m 0.04% —
32 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 369,710369.7k $19.1m $19.1m 0.01% —
33 WESTFIELD CAPITAL MANAGEMENT CO LP 0.14% of their portfolio BOSTON, MA 328,310328.3k $17.0m $17.0m 0.14% —
34 Schonfeld Strategic Advisors LLC 0.14% of their portfolio NEW YORK, NY 325,210325.2k $16.8m $16.8m 0.14% —
35 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 310,319310.3k $16.1m $16.1m 0.00% —
36 Cinctive Capital Management LP 0.67% of their portfolio New York, NY 283,527283.5k $14.7m $14.7m 0.67% —
37 SEI INVESTMENTS CO 0.03% of their portfolio OAKS, PA 281,054281.1k $14.6m $14.6m 0.03% —
38 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 268,542268.5k $13.9m $13.9m 0.01% —
39 Analog Century Management LP 7.08% of their portfolio NEW YORK, NY 243,703243.7k $12.6m $12.6m 7.08% —
40 AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio KANSAS CITY, MO 241,813241.8k $12.5m $12.5m 0.01% —
41 Ziegler Capital Management, LLC 0.50% of their portfolio CHICAGO, IL 218,595218.6k $11.3m $11.3m 0.50% —
42 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 213,427213.4k $11.1m $11.1m 0.01% —
43 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 212,378212.4k $11.0m $11.0m 0.01% —
44 WCM INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio LAGUNA BEACH, CA 205,815205.8k $10.9m $10.9m 0.04% —
45 S SQUARED TECHNOLOGY, LLC 7.35% of their portfolio RYE, NY 193,946193.9k $10.0m $10.0m 7.35% —
46 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 189,804189.8k $9.8m $9.8m 0.01% —
47 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 183,868183.9k $9.5m $9.5m 0.00% —
48 Weiss Multi-Strategy Advisers LLC 0.24% of their portfolio NEW YORK, NY 170,000170.0k $8.8m $8.8m 0.24% —
49 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 159,279159.3k $8.2m $8.2m 0.01% —
50 OSTERWEIS CAPITAL MANAGEMENT INC 0.61% of their portfolio SAN FRANCISCO, CA 157,930157.9k $8.2m $8.2m 0.61% —
51 Leeward Investments, LLC - MA 0.37% of their portfolio BOSTON, MA 151,501151.5k $7.8m $7.8m 0.37% —
52 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 133,608133.6k $6.9m $6.9m 0.01% —
53 RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio NEW YORK, NY 133,415133.4k $6.9m $6.9m 0.01% —
54 NEXT CENTURY GROWTH INVESTORS LLC 0.81% of their portfolio PLYMOUTH, MN 128,001128.0k $6.6m $6.6m 0.81% —
55 AXA S.A. 0.01% of their portfolio PARIS, I0 126,800126.8k $6.6m $6.6m 0.01% —
56 Swiss National Bank 0.00% of their portfolio ZURICH, V8 116,050116.0k $6.0m $6.0m 0.00% —
57 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 113,742113.7k $5.9m $5.9m 0.01% —
58 Avalon Global Asset Management LLC 3.39% of their portfolio SAN FRANCISCO, CA 105,000105.0k $5.4m $5.4m 3.39% —
59 GUGGENHEIM CAPITAL LLC 0.05% of their portfolio CHICAGO, IL 104,262104.3k $5.4m $5.4m 0.05% —
60 AMERICAN INTERNATIONAL GROUP, INC. 0.04% of their portfolio New York, NY 104,101104.1k $5.4m $5.4m 0.04% —
61 Moody Aldrich Partners LLC 0.95% of their portfolio MARBLEHEAD, MA 89,43189.4k $4.6m $4.6m 0.95% —
62 DigitalBridge Group, Inc. 0.65% of their portfolio Boca Raton, FL 83,89083.9k $4.3m $4.3m 0.65% —
63 Penserra Capital Management LLC 0.12% of their portfolio ORINDA, CA 82,47582.5k $4.3m $4.3m 0.12% —
64 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 81,82081.8k $4.2m $4.2m 0.01% —
65 GREAT LAKES ADVISORS, LLC 0.09% of their portfolio CHICAGO, IL 80,17680.2k $4.2m $4.2m 0.09% —
66 NOMURA HOLDINGS INC 0.04% of their portfolio TOKYO, M0 78,08578.1k $4.1m $4.1m 0.04% —
67 Crestline Management, L.P. 0.53% of their portfolio FORT WORTH, TX 75,15975.2k $3.9m $3.9m 0.53% —
68 Legal & General Group Plc 0.00% of their portfolio London, X0 73,81873.8k $3.8m $3.8m 0.00% —
69 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 73,43473.4k $3.8m $3.8m 0.01% —
70 KENNEDY CAPITAL MANAGEMENT LLC 0.10% of their portfolio ST LOUIS, MO 67,80267.8k $3.5m $3.5m 0.10% —
71 Retirement Systems of Alabama 0.02% of their portfolio MONTGOMERY, AL 66,89766.9k $3.5m $3.5m 0.02% —
72 Allianz Asset Management GmbH 0.01% of their portfolio MUNICH, 2M 65,29165.3k $3.4m $3.4m 0.01% —
73 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 62,06262.1k $3.2m $3.2m 0.01% —
74 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 61,86661.9k $3.2m $3.2m 0.01% —
75 MetLife Investment Management, LLC 0.03% of their portfolio Whippany, NJ 58,50058.5k $3.0m $3.0m 0.03% —
76 NORGES BANK 0.00% of their portfolio OSLO, Q8 54,18254.2k $2.8m $2.8m 0.00% —
77 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 51,53251.5k $2.7m $2.7m 0.00% —
78 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 46,59046.6k $2.4m $2.4m 0.00% —
79 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 44,18644.2k $2.3m $2.3m 0.00% —
80 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 42,74342.7k $2.2m $2.2m 0.01% —
81 Knights of Columbus Asset Advisors LLC 0.22% of their portfolio NEW HAVEN, CT 42,53142.5k $2.2m $2.2m 0.22% —
82 MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio New York, NY 41,00841.0k $2.1m $2.1m 0.03% —
83 SUMMIT PARTNERS L P 0.15% of their portfolio BOSTON, MA 40,50040.5k $2.1m $2.1m 0.15% —
84 Cowen Prime Advisors LLC 1.20% of their portfolio New York, NY 40,40840.4k $2.1m $2.1m 1.20% —
85 State of New Jersey Common Pension Fund D 0.01% of their portfolio TRENTON, NJ 40,07540.1k $2.1m $2.1m 0.01% —
86 Man Group plc 0.01% of their portfolio LONDON, X0 39,82039.8k $2.1m $2.1m 0.01% —
87 LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio LOS ANGELES, CA 39,33539.3k $2.0m $2.0m 0.01% —
88 TEXAS PERMANENT SCHOOL FUND CORP 0.03% of their portfolio AUSTIN, TX 36,75236.8k $1.9m $1.9m 0.03% —
89 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 36,19936.2k $1.9m $1.9m 0.00% —
90 AMALGAMATED BANK 0.02% of their portfolio NEW YORK, NY 35,41935.4k $1.8m $1.8m 0.02% —
91 Bridge City Capital, LLC 1.00% of their portfolio LAKE OSWEGO, OR 35,08435.1k $1.8m $1.8m 1.00% —
92 CHARTWELL INVESTMENT PARTNERS, LLC 0.07% of their portfolio BERYWN, PA 33,41933.4k $1.7m $1.7m 0.07% —
93 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 32,94932.9k $1.7m $1.7m 0.00% —
94 CANADA LIFE ASSURANCE Co 0.00% of their portfolio WINNIPEG, A2 30,83430.8k $1.6m $1.6m 0.00% —
95 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 30,09330.1k $1.6m $1.6m 0.00% —
96 UBS Group AG 0.00% of their portfolio ZURICH, V8 29,88829.9k $1.5m $1.5m 0.00% —
97 TEACHER RETIREMENT SYSTEM OF TEXAS 0.01% of their portfolio AUSTIN, TX 28,79828.8k $1.5m $1.5m 0.01% —
98 Allspring Global Investments Holdings, LLC 0.00% of their portfolio CHARLOTTE, NC 26,74726.7k $1.4m $1.4m 0.00% —
99 YOUSIF CAPITAL MANAGEMENT, LLC 0.02% of their portfolio BLOOMFIELD HILLS, MI 26,03026.0k $1.3m $1.3m 0.02% —
100 WINTON GROUP Ltd 0.08% of their portfolio LONDON, X0 24,76424.8k $1.3m $1.3m 0.08% —