Vault-13

WESTERN DIGITAL CORP WDC 3 11.15.28

NOTE 3.000%11/1 · US DOMESTIC · CUSIP 958102AT2

79 institutional holders +11 vs Q1 2025
11,344,82711.3m shares reported held*
$2.6bnreported value*
17 new 24 added 28 reduced 6 sold out net bought ≈ $49.5m (+7.0m 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 ($502.3k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $231.53.

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

050100Q4 24: 67Q1 25: 68Q2 25: 7979Q4 24Q1 25Q2 25
Numbers
QuarterHolders
Q4 202467
Q1 202568
Q2 202579

Buyers vs sellers

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

Bought or addedCut or sold out
50050Q1 25: 32 bought or addedQ1 25: 34 cut or sold outQ1 25Q2 25: 41 bought or addedQ2 25: 34 cut or sold outQ2 25
Numbers
QuarterBought or addedCut or sold out
Q1 20253234
Q2 20254134

Biggest buyers

MILLENNIUM MANAGEMENT LLC Added +125,000,000+125.0m
D. E. Shaw & Co., Inc. Added +87,578,000+87.6m
WHITEBOX ADVISORS LLC Added +40,850,000+40.9m
LAZARD ASSET MANAGEMENT LLC Added +35,613,000+35.6m
SONA ASSET MANAGEMENT (US) LLC New +35,000,000+35.0m
Shaolin Capital Management LLC New +25,000,000+25.0m
Portman Square Capital LLP New +24,400,000+24.4m
GLAZER CAPITAL, LLC Added +17,566,000+17.6m
Sculptor Capital LP New +17,500,000+17.5m
BNP PARIBAS FINANCIAL MARKETS Added +15,068,000+15.1m

Biggest sellers

Linden Advisors LP Reduced -334,800,000-334.8m
ARISTEIA CAPITAL, L.L.C. Reduced -47,108,000-47.1m
VOYA INVESTMENT MANAGEMENT LLC Reduced -39,765,000-39.8m
AMERIPRISE FINANCIAL INC Reduced -21,000,000-21.0m
CITADEL ADVISORS LLC Reduced -20,000,000-20.0m
ADVENT CAPITAL MANAGEMENT /DE/ Reduced -14,861,000-14.9m
TWO SIGMA INVESTMENTS, LP Reduced -12,050,000-12.1m
Fort Baker Capital Management LP Sold out -8,530,000-8.5m
UBS Group AG Reduced -6,796,000-6.8m
Thrivent Financial for Lutherans Reduced -4,470,000-4.5m

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 MILLENNIUM MANAGEMENT LLC 0.26% of their portfolio NEW YORK, NY 163,000,000163.0m $292.8m $292.8m 0.26% Added +125.0m +125,000,000
2 WHITEBOX ADVISORS LLC 7.91% of their portfolio MINNEAPOLIS, MN 161,900,000161.9m $290.6m $290.6m 7.91% Added +40.9m +40,850,000
3 D. E. Shaw & Co., Inc. 0.24% of their portfolio New York, NY 134,612,000134.6m $241.7m $241.7m 0.24% Added +87.6m +87,578,000
4 LAZARD ASSET MANAGEMENT LLC 0.21% of their portfolio NEW YORK, NY 85,582,00085.6m $153.8m $153.8m 0.21% Added +35.6m +35,613,000
5 Calamos Advisors LLC 0.60% of their portfolio NAPERVILLE, IL 78,433,00078.4m $140.8m $140.8m 0.60% Added +6.7m +6,694,000
6 BANK OF MONTREAL /CAN/ 0.06% of their portfolio TORONTO, A6 71,500,00071.5m $128.5m $128.5m 0.06% Added +14.5m +14,500,000
7 CITADEL ADVISORS LLC 0.11% of their portfolio MIAMI, FL 68,000,00068.0m $122.1m $122.1m 0.11% Reduced -20.0m -20,000,000
8 Linden Advisors LP 0.51% of their portfolio New York, NY 45,952,00046.0m $82.5m $82.5m 0.51% Reduced -334.8m -334,800,000
9 TWO SIGMA INVESTMENTS, LP 0.12% of their portfolio NEW YORK, NY 38,100,00038.1m $68.4m $68.4m 0.12% Reduced -12.1m -12,050,000
10 FMR LLC 0.00% of their portfolio BOSTON, MA 37,056,00037.1m $66.5m $66.5m 0.00% Added +14.3m +14,337,000
11 SONA ASSET MANAGEMENT (US) LLC 2.12% of their portfolio NEW YORK, NY 35,000,00035.0m $62.8m $62.8m 2.12% New
12 BNP PARIBAS FINANCIAL MARKETS 0.05% of their portfolio PARIS, I0 32,337,00032.3m $58.0m $58.0m 0.05% Added +15.1m +15,068,000
13 GLAZER CAPITAL, LLC 2.03% of their portfolio New York, NY 31,591,00031.6m $56.7m $56.7m 2.03% Added +17.6m +17,566,000
14 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 30,775,00030.8m $55.3m $55.3m 0.00% Reduced -1.9m -1,850,000
15 Alberta Investment Management Corp 0.42% of their portfolio EDMONTON, A0 30,000,00030.0m $53.8m $53.8m 0.42% Added +2.0m +2,000,000
16 Shaolin Capital Management LLC 1.96% of their portfolio Miami, FL 25,000,00025.0m $45.0m $45.0m 1.96% New
17 Portman Square Capital LLP 4.72% of their portfolio London, X0 24,400,00024.4m $43.9m $43.9m 4.72% New
18 VOYA INVESTMENT MANAGEMENT LLC 0.04% of their portfolio ATLANTA, GA 23,895,00023.9m $43.0m $43.0m 0.04% Reduced -39.8m -39,765,000
19 SUSQUEHANNA ADVISORS GROUP, INC. 0.02% of their portfolio BALA CYNWYD, PA 23,131,00023.1m $414.9k $414.9k 0.02% Reduced -2.0m -2,000,000
20 CAMDEN ASSET MANAGEMENT L P /CA 0.94% of their portfolio Los Angeles, CA 22,275,00022.3m $40.0m $40.0m 0.94% Unchanged
21 BlackRock, Inc. 0.00% of their portfolio New York, NY 19,840,00019.8m $35.6m $35.6m 0.00% Added +3.4m +3,350,000
22 MacKay Shields LLC 1.12% of their portfolio New York, NY 19,408,00019.4m $34.9m $34.9m 1.12% Reduced -3.0k -3,000
23 Thrivent Financial for Lutherans 0.07% of their portfolio Minneapolis, MN 18,585,00018.6m $33.4m $33.4m 0.07% Reduced -4.5m -4,470,000
24 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.06% of their portfolio TORONTO, A6 18,000,00018.0m $32.4m $32.4m 0.06% Added +2.5m +2,500,000
25 Nuveen, LLC 0.01% of their portfolio CHARLOTTE, NC 17,775,00017.8m $31.9m $31.9m 0.01% Unchanged
26 Sculptor Capital LP 0.51% of their portfolio New York, NY 17,500,00017.5m $31.4m $31.4m 0.51% New
27 SILVERBACK ASSET MANAGEMENT LLC 4.66% of their portfolio DURHAM, NC 16,892,00016.9m $30.3m $30.3m 4.66% Added +4.5m +4,500,000
28 ADVENT CAPITAL MANAGEMENT /DE/ 0.52% of their portfolio NEW YORK, NY 13,089,00013.1m $23.5m $23.5m 0.52% Reduced -14.9m -14,861,000
29 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.02% of their portfolio Toronto, A6 12,500,00012.5m $22.5m $22.5m 0.02% Added +2.0m +2,000,000
30 Point72 Asset Management, L.P. 0.05% of their portfolio STAMFORD, CT 12,500,00012.5m $22.5m $22.5m 0.05% New
31 SSI INVESTMENT MANAGEMENT LLC 1.40% of their portfolio Los Angeles, CA 11,053,00011.1m $19.8m $19.8m 1.40% Reduced -104.0k -104,000
32 TENOR CAPITAL MANAGEMENT Co., L.P. 0.24% of their portfolio NEW YORK, NY 10,000,00010.0m $18.0m $18.0m 0.24% New
33 LORD, ABBETT & CO. LLC 0.05% of their portfolio JERSEY CITY, NJ 9,201,0009.2m $16.5m $16.5m 0.05% New
34 AQR Arbitrage LLC 0.36% of their portfolio Greenwich, CT 8,490,0008.5m $15.3m $15.3m 0.36% New
35 Amundi 0.01% of their portfolio Paris, I0 8,000,0008.0m $14.7m $14.7m 0.01% Added +2.0m +2,000,000
36 BANK OF NOVA SCOTIA 0.03% of their portfolio TORONTO, A6 7,500,0007.5m $13.4m $13.4m 0.03% Added +6.2m +6,150,000
37 Warberg Asset Management LLC 3.09% of their portfolio WINNETKA, IL 7,026,0007.0m $12.6m $12.6m 3.09% New
38 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 6,500,0006.5m $11.7m $11.7m 0.00% Reduced -21.0m -21,000,000
39 ARISTEIA CAPITAL, L.L.C. 0.31% of their portfolio GREENWICH, CT 6,000,0006.0m $10.8m $10.8m 0.31% Reduced -47.1m -47,108,000
40 Fort Baker Capital Management LP 1.74% of their portfolio Larkspur, CA 5,530,0005.5m $9.9m $9.9m 1.74% New
41 CITIGROUP INC 0.01% of their portfolio NEW YORK, NY 4,753,0004.8m $8.5m $8.5m 0.01% Reduced -748.0k -748,000
42 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4,680,0004.7m $8.4m $8.4m 0.00% Unchanged
43 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 4,658,0004.7m $8.4m $8.4m 0.00% Added +2.7m +2,658,000
44 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 4,555,0004.6m $8.2m $8.2m 0.00% Reduced -2.2m -2,163,000
45 KIM, LLC 0.84% of their portfolio WICHITA, KS 4,500,0004.5m $8.1m $8.1m 0.84% New
46 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 4,000,0004.0m $7.2m $7.2m 0.00% Reduced -1.0m -1,000,000
47 ZAZOVE ASSOCIATES LLC 0.59% of their portfolio INCLINE VILLAGE, NV 4,000,0004.0m $7.2m $7.2m 0.59% Unchanged
48 CSS LLC/IL 0.34% of their portfolio CHICAGO, IL 2,977,0003.0m $5.3m $5.3m 0.34% Reduced -748.0k -748,000
49 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 2,861,0002.9m $5.1m $5.1m 0.00% New
50 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 2,322,0002.3m $4.2m $4.2m 0.00% Added +822.0k +822,000
51 BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.01% of their portfolio Paris, I0 2,300,0002.3m $4.1m $4.1m 0.01% Added +1 +1
52 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 2,000,0002.0m $3.6m $3.6m 0.01% New
53 MACQUARIE GROUP LTD 0.00% of their portfolio Sydney, NSW 2000, C3 1,900,0001.9m $3.4m $3.4m 0.00% New
54 Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio FRANKFURT AM MAIN, 2M 1,874,0001.9m $3.4m $3.4m 0.01% Reduced -566.0k -566,000
55 PALISADE CAPITAL MANAGEMENT, LP 0.08% of their portfolio FORT LEE, NJ 1,500,0001.5m $2.7m $2.7m 0.08% Added +750.0k +750,000
56 Nicholas Investment Partners, LP 0.20% of their portfolio RANCHO SANTA FE, CA 1,275,0001.3m $2.3m $2.3m 0.20% Reduced -500.0k -500,000
57 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 1,156,0001.2m $2.1m $2.1m 0.00% Reduced -2.0m -2,007,000
58 WESTWOOD HOLDINGS GROUP INC 0.01% of their portfolio DALLAS, TX 1,100,0001.1m $1.1m $1.1m 0.01% Added +100.0k +100,000
59 Ionic Capital Management LLC 2.01% of their portfolio NEW YORK, NY 1,000,0001.0m $1.8m $1.8m 2.01% New
60 Quaero Capital S.A. 2.25% of their portfolio GENEVE, V8 1,000,0001.0m $1.8m $1.8m 2.25% Unchanged
61 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 550,000550.0k $988.2k $988.2k 0.00% Unchanged
62 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 528,000528.0k $948.6k $948.6k 0.00% Reduced -17.0k -17,000
63 NOMURA HOLDINGS INC 0.20% of their portfolio TOKYO, M0 387,327387.3k $24.8m $24.8m 0.20% Reduced -507.3k -507,261
64 Central Pacific Bank - Trust Division 0.08% of their portfolio HONOLULU, HI 368,000368.0k $660.6k $660.6k 0.08% Reduced -23.0k -23,000
65 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 342,000342.0k $614.7k $614.7k 0.00% Unchanged
66 Erste Asset Management GmbH 0.00% of their portfolio VIENNA, C4 300,000300.0k $536.5k $536.5k 0.00% Added +300.0k +300,000
67 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 280,000280.0k $502.3k $502.3k 0.00% Unchanged
68 Kohlberg Kravis Roberts & Co. L.P. 0.01% of their portfolio NEW YORK, NY 250,000250.0k $449.4k $449.4k 0.01% New
69 OPPENHEIMER ASSET MANAGEMENT INC. 0.00% of their portfolio NEW YORK, NY 130,000130.0k $233.3k $233.3k 0.00% Reduced -2.0k -2,000
70 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 120,000120.0k $215.4k $215.4k 0.00% Unchanged
71 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 120,000120.0k $215.8k $215.8k 0.00% Reduced -100.0k -100,000
72 Calamos Wealth Management LLC 0.01% of their portfolio NAPERVILLE, IL 101,000101.0k $181.3k $181.3k 0.01% Reduced -24.0k -24,000
73 STEPHENS INC /AR/ 0.00% of their portfolio LITTLE ROCK, AR 40,00040.0k $71.8k $71.8k 0.00% Added +2.0k +2,000
74 UBS Group AG 0.00% of their portfolio ZURICH, V8 28,00028.0k $50.3k $50.3k 0.00% Reduced -6.8m -6,796,000
75 Balboa Wealth Partners 0.01% of their portfolio SCOTTSDALE, AZ 20,00020.0k $35.9k $35.9k 0.01% Reduced -5.0k -5,000
76 Stonegate Investment Group, LLC 0.00% of their portfolio BIRMINGHAM, AL 13,00013.0k $23.3k $23.3k 0.00% New
77 LOOMIS SAYLES & CO L P 0.00% of their portfolio BOSTON, MA 11,61311.6k $743.1k $743.1k 0.00% Added +4.2k +4,223
78 Boussard & Gavaudan Investment Management LLP 1.73% of their portfolio London, X0 7,5007.5k $13.5m $13.5m 1.73% Reduced -7.0k -7,000
79 CONCOURSE FINANCIAL GROUP SECURITIES, INC. — of their portfolio BIRMINGHAM, AL 00 $0 $0 — Unchanged