Vault-13

MKS INC. MKSI 1.25 06.01.30

NOTE 1.250% 6/0 · US DOMESTIC · CUSIP 55306NAB0

73 institutional holders -6 vs Q1 2026
26,082,81526.1m shares reported held*
$3.7bnreported value*
14 new 17 added 28 reduced 21 sold out net sold ≈ $282.9m (-22.8m 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 ($1.4m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $142.40.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q2 25: 66Q3 25: 69Q4 25: 71Q1 26: 79Q2 26: 7373Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q2 202566
Q3 202569
Q4 202571
Q1 202679
Q2 202673

Buyers vs sellers

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

Bought or addedCut or sold out
50050Q3 25: 33 bought or addedQ3 25: 31 cut or sold outQ3 25Q4 25: 25 bought or addedQ4 25: 34 cut or sold outQ4 25Q1 26: 37 bought or addedQ1 26: 49 cut or sold outQ1 26Q2 26: 31 bought or addedQ2 26: 49 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20253331
Q4 20252534
Q1 20263749
Q2 20263149

Biggest buyers

Sculptor Capital LP Added +53,000,000+53.0m
SUSQUEHANNA ADVISORS GROUP, INC. Added +48,775,000+48.8m
Jain Global LLC Added +33,781,000+33.8m
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC New +23,200,000+23.2m
D. E. Shaw & Co., Inc. Added +22,995,000+23.0m
Alberta Investment Management Corp Added +22,500,000+22.5m
Davidson Kempner Capital Management LP Added +21,500,000+21.5m
MILLENNIUM MANAGEMENT LLC New +15,556,000+15.6m
SILVERBACK ASSET MANAGEMENT LLC New +14,700,000+14.7m
SSI INVESTMENT MANAGEMENT LLC New +13,294,000+13.3m

Biggest sellers

VOYA INVESTMENT MANAGEMENT LLC Reduced -86,930,000-86.9m
ZAZOVE ASSOCIATES LLC Sold out -43,680,000-43.7m
Invesco Ltd. Reduced -42,646,000-42.6m
Calamos Advisors LLC Reduced -27,498,000-27.5m
JPMORGAN CHASE & CO Reduced -26,081,000-26.1m
BNP PARIBAS FINANCIAL MARKETS Reduced -17,874,000-17.9m
SSI INVESTMENT MANAGEMENT LLC Sold out -13,080,000-13.1m
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -10,500,000-10.5m
Point72 Asset Management, L.P. Sold out -10,000,000-10.0m
Ovata Capital Management Ltd Sold out -10,000,000-10.0m

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Linden Advisors LP 3.07% of their portfolio New York, NY 201,344,000201.3m $593.3m $593.3m 3.07% Added +2.5m +2,456,000
2 Sculptor Capital LP 4.96% of their portfolio New York, NY 162,500,000162.5m $479.7m $479.7m 4.96% Added +53.0m +53,000,000
3 VOYA INVESTMENT MANAGEMENT LLC 0.28% of their portfolio ATLANTA, GA 108,880,000108.9m $320.9m $320.9m 0.28% Reduced -86.9m -86,930,000
4 SUSQUEHANNA ADVISORS GROUP, INC. 0.05% of their portfolio BALA CYNWYD, PA 59,312,00059.3m $1.7m $1.7m 0.05% Added +48.8m +48,775,000
5 FRANKLIN RESOURCES INC 0.04% of their portfolio San Mateo, CA 57,672,00057.7m $170.0m $170.0m 0.04% Reduced -953.0k -953,000
6 Calamos Advisors LLC 0.54% of their portfolio NAPERVILLE, IL 50,767,00050.8m $149.9m $149.9m 0.54% Reduced -27.5m -27,498,000
7 Alberta Investment Management Corp 0.85% of their portfolio EDMONTON, A0 50,000,00050.0m $147.6m $147.6m 0.85% Added +22.5m +22,500,000
8 Davidson Kempner Capital Management LP 2.34% of their portfolio New York, NY 49,500,00049.5m $145.7m $145.7m 2.34% Added +21.5m +21,500,000
9 FMR LLC 0.01% of their portfolio BOSTON, MA 44,028,00044.0m $129.6m $129.6m 0.01% Reduced -3.8m -3,834,000
10 BNP PARIBAS FINANCIAL MARKETS 0.06% of their portfolio PARIS, I0 40,304,00040.3m $118.6m $118.6m 0.06% Reduced -17.9m -17,874,000
11 Jain Global LLC 1.35% of their portfolio NEW YORK, NY 38,781,00038.8m $114.3m $114.3m 1.35% Added +33.8m +33,781,000
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 36,522,00036.5m $107.5m $107.5m 0.00% Added +6.8m +6,850,000
13 MacKay Shields LLC 3.60% of their portfolio New York, NY 36,470,00036.5m $107.5m $107.5m 3.60% Reduced -40.0k -40,000
14 BlackRock, Inc. 0.00% of their portfolio New York, NY 34,204,00034.2m $100.7m $100.7m 0.00% Added +11.4m +11,400,000
15 DeepCurrents Investment Group LLC 3.14% of their portfolio NEW YORK, NY 31,035,00031.0m $91.6m $91.6m 3.14% Added +4.0m +4,000,000
16 BANK OF MONTREAL /CAN/ 0.01% of their portfolio TORONTO, A6 25,000,00025.0m $24.0m $24.0m 0.01% Unchanged
17 D. E. Shaw & Co., Inc. 0.05% of their portfolio New York, NY 24,760,00024.8m $73.0m $73.0m 0.05% Added +23.0m +22,995,000
18 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% of their portfolio NEW YORK, NY 23,200,00023.2m $68.3m $68.3m 0.01% New
19 TENOR CAPITAL MANAGEMENT Co., L.P. 0.93% of their portfolio NEW YORK, NY 22,500,00022.5m $66.3m $66.3m 0.93% Reduced -8.4m -8,442,000
20 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 21,012,00021.0m $619.3k $619.3k 0.00% Added +1.3m +1,326,000
21 MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio NEW YORK, NY 15,556,00015.6m $45.8m $45.8m 0.03% New
22 Thrivent Financial for Lutherans 0.08% of their portfolio Minneapolis, MN 15,327,00015.3m $45.1m $45.1m 0.08% Reduced -5.6m -5,570,000
23 SILVERBACK ASSET MANAGEMENT LLC 5.48% of their portfolio DURHAM, NC 14,700,00014.7m $43.3m $43.3m 5.48% New
24 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 14,560,00014.6m $40.3m $40.3m 0.00% Reduced -26.1m -26,081,000
25 ARISTEIA CAPITAL, L.L.C. 0.65% of their portfolio GREENWICH, CT 14,000,00014.0m $41.3m $41.3m 0.65% Added +2.0m +2,000,000
26 SSI INVESTMENT MANAGEMENT LLC 2.27% of their portfolio Los Angeles, CA 13,294,00013.3m $39.1m $39.1m 2.27% New
27 BANK OF NOVA SCOTIA 0.05% of their portfolio TORONTO, A6 12,292,37812.3m $35.9m $35.9m 0.05% New
28 ABSOLUTE INVESTMENT ADVISERS, LLC 3.49% of their portfolio ROSEMARY BEACH, FL 12,292,00012.3m $36.1m $36.1m 3.49% Added +24.0k +24,000
29 LORD, ABBETT & CO. LLC 0.10% of their portfolio JERSEY CITY, NJ 11,964,00012.0m $35.2m $35.2m 0.10% Reduced -1.6m -1,606,000
30 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio Toronto, A6 10,300,00010.3m $30.4m $30.4m 0.02% Added +100.0k +100,000
31 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 9,312,0009.3m $27.4m $27.4m 0.00% Added +4.1m +4,072,000
32 BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio Paris, I0 9,250,0009.2m $26.4m $26.4m 0.03% New
33 ADVENT CAPITAL MANAGEMENT /DE/ 0.30% of their portfolio NEW YORK, NY 4,427,0004.4m $13.1m $13.1m 0.30% Reduced -5.0m -5,031,000
34 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 4,072,0004.1m $12.0m $12.0m 0.00% Reduced -2.9m -2,930,000
35 Amundi 0.00% of their portfolio Paris, I0 4,000,0004.0m $11.8m $11.8m 0.00% Unchanged
36 Universal- Beteiligungs- und Servicegesellschaft mbH 0.02% of their portfolio FRANKFURT AM MAIN, 2M 3,510,0003.5m $10.4m $10.4m 0.02% Reduced -1.8m -1,802,000
37 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 3,500,0003.5m $10.3m $10.3m 0.00% Reduced -42.6m -42,646,000
38 Opti Capital Management, LP 0.49% of their portfolio New York, NY 2,700,0002.7m $8.0m $8.0m 0.49% New
39 Man Group plc 0.01% of their portfolio LONDON, X0 2,500,0002.5m $7.4m $7.4m 0.01% Unchanged
40 DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main 0.00% of their portfolio FRANKFURT AM MAIN, 2M 1,450,0001.4m $4.3m $4.3m 0.00% Reduced -6.0m -6,000,000
41 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 1,223,0001.2m $3.6m $3.6m 0.00% Reduced -5.7m -5,727,000
42 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 1,132,0001.1m $3.3m $3.3m 0.00% Reduced -6.0k -6,000
43 AGF MANAGEMENT LTD 0.01% of their portfolio TORONTO, A6 875,000875.0k $2.6m $2.6m 0.01% Reduced -350.0k -350,000
44 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 624,000624.0k $1.8m $1.8m 0.00% Reduced -429.0k -429,000
45 SHENKMAN CAPITAL MANAGEMENT INC 0.23% of their portfolio NEW YORK, NY 559,000559.0k $1.6m $1.6m 0.23% Reduced -700.0k -700,000
46 Calamos Wealth Management LLC 0.05% of their portfolio NAPERVILLE, IL 556,000556.0k $1.6m $1.6m 0.05% Reduced -2.0k -2,000
47 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 500,000500.0k $1.5m $1.5m 0.00% Unchanged
48 Benefit Street Partners LLC 2.13% of their portfolio NEW YORK, NY 500,000500.0k $1.5m $1.5m 2.13% Unchanged
49 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 491,000491.0k $1.4m $1.4m 0.00% Unchanged
50 Police & Firemen's Retirement System of New Jersey 0.01% of their portfolio TRENTON, NJ 460,000460.0k $1.4m $1.4m 0.01% New
51 Central Pacific Bank - Trust Division 0.13% of their portfolio HONOLULU, HI 444,000444.0k $1.3m $1.3m 0.13% Unchanged
52 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 296,000296.0k $871.3k $871.3k 0.00% Unchanged
53 SG Americas Securities, LLC 0.05% of their portfolio NEW YORK, NY 269,380269.4k $79.8m $79.8m 0.05% Added +162.2k +162,200
54 UBS Group AG 0.00% of their portfolio ZURICH, V8 257,000257.0k $756.5k $756.5k 0.00% Reduced -10.0k -10,000
55 Virtus Fixed Income Advisers, LLC 0.48% of their portfolio HARTFORD, CT 256,000256.0k $753.6k $753.6k 0.48% New
56 DNCA FINANCE 0.03% of their portfolio PARIS, I0 200,000200.0k $590.5k $590.5k 0.03% New
57 Axxion S.A. 0.04% of their portfolio GREVENMACHER, N4 200,000200.0k $624.8k $624.8k 0.04% First filing
58 Ares Systematic Credit Ltd 0.36% of their portfolio LONDON, X0 200,000200.0k $589.5k $589.5k 0.36% Unchanged
59 Kohlberg Kravis Roberts & Co. L.P. 0.01% of their portfolio NEW YORK, NY 161,000161.0k $474.5k $474.5k 0.01% Reduced -698.0k -698,000
60 OPPENHEIMER ASSET MANAGEMENT INC. 0.00% of their portfolio NEW YORK, NY 94,00094.0k $276.7k $276.7k 0.00% Reduced -2.0k -2,000
61 AQR Arbitrage LLC 0.00% of their portfolio Greenwich, CT 85,00085.0k $250.5k $250.5k 0.00% New
62 LOOMIS SAYLES & CO L P 0.04% of their portfolio BOSTON, MA 65,15665.2k $29.0m $29.0m 0.04% Added +20.0k +20,030
63 &PARTNERS 0.00% of their portfolio NASHVILLE, TN 65,00065.0k $191.3k $191.3k 0.00% Reduced -5.0k -5,000
64 VIRTUS ADVISERS, LLC 0.07% of their portfolio HARTFORD, CT 59,00059.0k $173.7k $173.7k 0.07% Unchanged
65 STEPHENS INC /AR/ 0.00% of their portfolio LITTLE ROCK, AR 29,00029.0k $85.4k $85.4k 0.00% Reduced -1.0k -1,000
66 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 23,00023.0k $67.7k $67.7k 0.00% New
67 BOUSSARD & GAVAUDAN GESTION SAS 2.38% of their portfolio PARIS, I0 16,15416.2k $47.1m $47.1m 2.38% First filing
68 MML INVESTORS SERVICES, LLC 0.00% of their portfolio SPRINGFIELD, MA 10,00010.0k $29.4k $29.4k 0.00% Unchanged
69 LANARK FINANCIAL, INC. 0.00% of their portfolio BIRMINGHAM, AL 4,0004.0k $11.8k $11.8k 0.00% New
70 LAFFER TENGLER INVESTMENTS, INC. 0.42% of their portfolio Scottsdale, AZ 1,1241.1k $3.3m $3.3m 0.42% New
71 Candriam S.C.A. 0.01% of their portfolio STRASSEN, N4 700700 $2.1m $2.1m 0.01% Reduced -300 -300
72 ODDO BHF ASSET MANAGEMENT SAS 0.02% of their portfolio PARIS, I0 159159 $469.4k $469.4k 0.02% Reduced -25 -25
73 Erste Asset Management GmbH 0.00% of their portfolio VIENNA, C4 00 $0 $0 0.00% Unchanged