Vault-13

WESCO INTL INC WCC

COM · Common Stock · CUSIP 95082P105 · ISIN US95082P1057

370 institutional holders
48,251,68048.3m shares reported held*
94.9% of all shares outstanding*
$5.8bnreported 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 ($10.8m this quarter). Holder counts are more reliable. Shares outstanding: 50.8m as of 2022-11-03, 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 ≈ $119.45. Options: 13 managers hold calls ($66.0m notional), 12 hold puts ($76.5m).

Biggest calls

Twin Tree Management, LP — $29.2m244.7k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $14.9m125.1k shares
CITADEL ADVISORS LLC — $7.9m66.3k shares
D. E. Shaw & Co., Inc. — $4.2m35.3k shares
JANE STREET GROUP, LLC — $3.4m28.4k shares
BRANT POINT INVESTMENT MANAGEMENT LLC — $2.4m20.0k shares
SIMPLEX TRADING, LLC — $1.8m15.4k shares
Walleye Trading LLC — $1.2m9.9k shares
Walleye Capital LLC — $394.0k3.3k shares
TUDOR INVESTMENT CORP ET AL — $372.0k3.1k shares

Biggest puts

Twin Tree Management, LP — $32.0m267.8k shares
CITADEL ADVISORS LLC — $13.8m115.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP — $8.7m72.9k shares
JANE STREET GROUP, LLC — $7.8m65.5k shares
SIMPLEX TRADING, LLC — $3.7m30.6k shares
Walleye Trading LLC — $3.4m28.2k shares
SCOPUS ASSET MANAGEMENT, L.P. — $3.0m25.0k shares
BRANT POINT INVESTMENT MANAGEMENT LLC — $2.4m20.0k shares
D. E. Shaw & Co., Inc. — $752.0k6.3k shares
GROUP ONE TRADING LLC — $704.0k5.9k 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 filed 2026-07-30 8.9% 4.4m≈ $1.5bn 2026-07-30
BlackRock Portfolio Management LLC 13G · institution -1.9 pts · filed 2026-10-27 8.2% -1.9 pts 4.0m≈ $1.4bn 2026-10-27
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 5.2% new 2.6m≈ $881.9m 2026-04-30

Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (4.1%, 2026-08-13), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)

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
404Q4 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: 4 sellingQ1 22: 0 buyingQ1 22: 1 sellingQ1 22Q2 22: 0 buyingQ2 22: 0 sellingQ3 22: 0 buyingQ3 22: 0 sellingQ3 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20200—0——
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—4$9.0m—
Q1 20220—1$881.4k—
Q2 20220—0——
Q3 20220—0——
DateInsiderTradeSharesPrice ValueTheir holding
2022-09-29 Leonard Green & Partners, L.P. +4 10% owner Bought 9,941 $114.78 $1.1m9.9k shares +<1%
2022-09-27 Leonard Green & Partners, L.P. +4 10% owner Bought 97,157 $113.90 $11.1m97.2k shares +3%
2022-08-08 Leonard Green & Partners, L.P. +4 10% owner Bought 100,000 $133.96 $13.4m100.0k shares +3%
2022-08-05 Leonard Green & Partners, L.P. +4 10% owner Bought 129,761 $132.16 $17.1m129.8k shares +4%
2022-08-04 Leonard Green & Partners, L.P. +4 10% owner Bought 370,239 $129.92 $48.1m370.2k shares +13%

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 Leonard Green & Partners, L.P. 13.57% of their portfolio Los Angeles, CA 6,407,0986.4m $764.9m $764.9m 13.57% —
2 VANGUARD GROUP INC 0.02% of their portfolio Valley Forge, PA 4,553,8034.6m $543.6m $543.6m 0.02% —
3 DIMENSIONAL FUND ADVISORS LP 0.12% of their portfolio AUSTIN, TX 2,709,1092.7m $323.4m $323.4m 0.12% —
4 BlackRock Inc. 0.01% of their portfolio New York, NY 2,518,7382.5m $300.7m $300.7m 0.01% —
5 PECONIC PARTNERS LLC 19.68% of their portfolio NEW YORK, NY 2,385,1432.4m $284.7m $284.7m 19.68% —
6 MACQUARIE GROUP LTD 0.30% of their portfolio Sydney, NSW 2000, C3 2,030,4642.0m $242.5m $242.5m 0.30% —
7 Diamond Hill Capital Management, LLC (Investment Advisor) 1.09% of their portfolio COLUMBUS, OH 1,905,7361.9m $227.5m $227.5m 1.09% —
8 Boston Partners 0.33% of their portfolio BOSTON, MA 1,872,9821.9m $226.8m $226.8m 0.33% —
9 WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio Boston, MA 1,515,3591.5m $180.9m $180.9m 0.04% —
10 WESTFIELD CAPITAL MANAGEMENT CO LP 1.20% of their portfolio BOSTON, MA 1,264,1731.3m $150.9m $150.9m 1.20% —
11 Invesco Ltd. 0.05% of their portfolio ATLANTA, GA 1,211,2761.2m $144.6m $144.6m 0.05% —
12 NEW SOUTH CAPITAL MANAGEMENT INC 5.99% of their portfolio MEMPHIS, TN 1,036,8771.0m $123.8m $123.8m 5.99% —
13 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 710,504710.5k $84.8m $84.8m 0.01% —
14 GMT Capital Corp 4.84% of their portfolio ATLANTA, GA 652,700652.7k $77.9m $77.9m 4.84% —
15 GOLDMAN SACHS GROUP INC 0.02% of their portfolio NEW YORK, NY 640,762640.8k $76.5m $76.5m 0.02% —
16 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 565,013565.0k $67.5m $67.5m 0.01% —
17 JPMORGAN CHASE & CO 0.01% of their portfolio NEW YORK, NY 543,017543.0k $64.8m $64.8m 0.01% —
18 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 531,381531.4k $63.4m $63.4m 0.01% —
19 PRINCIPAL FINANCIAL GROUP INC 0.05% of their portfolio DES MOINES, IA 526,954527.0k $62.9m $62.9m 0.05% —
20 Nuveen Asset Management, LLC 0.02% of their portfolio CHICAGO, IL 454,547454.5k $54.3m $54.3m 0.02% —
21 NORGES BANK 0.01% of their portfolio OSLO, Q8 422,519422.5k $50.4m $50.4m 0.01% —
22 VICTORY CAPITAL MANAGEMENT INC 0.06% of their portfolio San Antonio, TX 413,636413.6k $49.4m $49.4m 0.06% —
23 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio SAN FRANCISCO, CA 402,662402.7k $48.1m $48.1m 0.02% —
24 Premier Fund Managers Ltd 3.41% of their portfolio GUILDFORD, X0 391,017391.0k $45.7m $45.7m 3.41% —
25 Standard Investments LLC 2.06% of their portfolio New York, NY 375,000375.0k $44.8m $44.8m 2.06% —
26 FRONTIER CAPITAL MANAGEMENT CO LLC 0.47% of their portfolio Boston, MA 338,996339.0k $40.5m $40.5m 0.47% —
27 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 306,861306.9k $36.6m $36.6m 0.01% —
28 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 298,817298.8k $35.7m $35.7m 0.04% —
29 FMR LLC 0.00% of their portfolio BOSTON, MA 289,343289.3k $34.5m $34.5m 0.00% —
30 ROYAL BANK OF CANADA 0.01% of their portfolio TORONTO, A6 286,120286.1k $34.2m $34.2m 0.01% —
31 Balyasny Asset Management L.P. 0.13% of their portfolio Chicago, IL 274,086274.1k $32.7m $32.7m 0.13% —
32 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 272,093272.1k $32.5m $32.5m 0.01% —
33 RAYMOND JAMES & ASSOCIATES 0.03% of their portfolio ST PETERSBURG, FL 248,430248.4k $29.7m $29.7m 0.03% —
34 59 North Capital Management, LP 7.78% of their portfolio Houston, TX 243,623243.6k $29.1m $29.1m 7.78% —
35 Shellback Capital, LP 3.89% of their portfolio Boston, MA 225,529225.5k $26.9m $26.9m 3.89% —
36 FIRST TRUST ADVISORS LP 0.03% of their portfolio Wheaton, IL 216,555216.6k $25.9m $25.9m 0.03% —
37 Raymond James Financial Services Advisors, Inc. 0.06% of their portfolio ST. PETERSBURG, FL 213,727213.7k $25.5m $25.5m 0.06% —
38 PRUDENTIAL FINANCIAL INC 0.04% of their portfolio NEWARK, NJ 213,113213.1k $25.4m $25.4m 0.04% —
39 Aperture Investors, LLC 4.13% of their portfolio New York, NY 210,867210.9k $25.2m $25.2m 4.13% —
40 Mirae Asset Global Investments Co., Ltd. 0.07% of their portfolio SEOUL, M5 210,641210.6k $25.1m $25.1m 0.07% —
41 LSV ASSET MANAGEMENT 0.06% of their portfolio CHICAGO, IL 209,400209.4k $25.0m $25.0m 0.06% —
42 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 200,229200.2k $23.9m $23.9m 0.00% —
43 CHAI TRUST CO LLC 3.35% of their portfolio CHICAGO, IL 188,439188.4k $22.5m $22.5m 3.35% —
44 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.03% of their portfolio BOSTON, MA 178,303178.3k $21.3m $21.3m 0.03% —
45 FARMERS & MERCHANTS INVESTMENTS INC 0.94% of their portfolio LINCOLN, NE 174,793174.8k $20.9m $20.9m 0.94% —
46 GREAT LAKES ADVISORS, LLC 0.41% of their portfolio CHICAGO, IL 158,031158.0k $18.9m $18.9m 0.41% —
47 Lighthouse Investment Partners, LLC 7.26% of their portfolio Palm Beach Gardens, FL 151,405151.4k $18.1m $18.1m 7.26% —
48 Assenagon Asset Management S.A. 0.08% of their portfolio SENNINGERBERG, N4 150,678150.7k $18.0m $18.0m 0.08% —
49 Bornite Capital Management LP 5.07% of their portfolio NEW YORK, NY 150,000150.0k $17.9m $17.9m 5.07% —
50 EAGLE ASSET MANAGEMENT INC 0.11% of their portfolio ST PETERSBURG, FL 146,862146.9k $17.5m $17.5m 0.11% —
51 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.08% of their portfolio COLUMBUS, OH 143,656143.7k $17.1m $17.1m 0.08% —
52 AMERIPRISE FINANCIAL INC 0.01% of their portfolio MINNEAPOLIS, MN 139,674139.7k $16.7m $16.7m 0.01% —
53 CITADEL ADVISORS LLC 0.02% of their portfolio MIAMI, FL 138,060138.1k $16.5m $16.5m 0.02% —
54 Cartenna Capital, LP 3.86% of their portfolio STAMFORD, CT 135,000135.0k $16.1m $16.1m 3.86% —
55 GLENMEDE TRUST CO NA 0.10% of their portfolio PHILADELPHIA, PA 128,336128.3k $15.3m $15.3m 0.10% —
56 BRAUN STACEY ASSOCIATES INC 0.88% of their portfolio NEW YORK, NY 121,969122.0k $14.6m $14.6m 0.88% —
57 ROYCE & ASSOCIATES LP 0.16% of their portfolio New York, NY 116,951117.0k $14.0m $14.0m 0.16% —
58 Schonfeld Strategic Advisors LLC 0.11% of their portfolio NEW YORK, NY 113,350113.3k $13.5m $13.5m 0.11% —
59 AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio Greenwich, CT 112,499112.5k $13.4m $13.4m 0.03% —
60 STATE OF WISCONSIN INVESTMENT BOARD 0.04% of their portfolio MADISON, WI 111,575111.6k $13.3m $13.3m 0.04% —
61 KORNITZER CAPITAL MANAGEMENT INC /KS 0.29% of their portfolio SHAWNEE MISSION, KS 111,573111.6k $13.3m $13.3m 0.29% —
62 Lodge Hill Capital, LLC 4.85% of their portfolio NEW YORK, NY 110,000110.0k $13.1m $13.1m 4.85% —
63 FEDERATED HERMES, INC. 0.04% of their portfolio PITTSBURGH, PA 109,600109.6k $13.1m $13.1m 0.04% —
64 California Public Employees Retirement System 0.01% of their portfolio Sacramento, CA 109,227109.2k $13.0m $13.0m 0.01% —
65 Swiss National Bank 0.01% of their portfolio ZURICH, V8 108,275108.3k $12.9m $12.9m 0.01% —
66 HANTZ FINANCIAL SERVICES, INC. 0.38% of their portfolio SOUTHFIELD, MI 93,39493.4k $11.1m $11.1m 0.38% —
67 HENNESSY ADVISORS INC 0.77% of their portfolio NOVATO, CA 92,80092.8k $11.1m $11.1m 0.77% —
68 COMERICA BANK 0.10% of their portfolio DALLAS, TX 92,25692.3k $12.1m $12.1m 0.10% —
69 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.18% of their portfolio BALA CYNWYD, PA 87,32487.3k $10.4m $10.4m 0.18% —
70 ISTHMUS PARTNERS, LLC 1.70% of their portfolio MADISON, WI 82,69382.7k $9.9m $9.9m 1.70% —
71 Advantage Alpha Capital Partners LP 1.80% of their portfolio SAN FRANCISCO, CA 82,24482.2k $9.8m $9.8m 1.80% —
72 ExodusPoint Capital Management, LP 0.14% of their portfolio NEW YORK, NY 81,47981.5k $9.7m $9.7m 0.14% —
73 Olstein Capital Management, L.P. 1.62% of their portfolio Purchase, NY 81,00081.0k $9.7m $9.7m 1.62% —
74 Hudson Bay Capital Management LP 0.10% of their portfolio STAMFORD, CT 80,00080.0k $9.6m $9.6m 0.10% —
75 MARSHALL WACE, LLP 0.02% of their portfolio LONDON, X0 77,69177.7k $9.3m $9.3m 0.02% —
76 Allianz Asset Management GmbH 0.02% of their portfolio MUNICH, 2M 77,31477.3k $9.2m $9.2m 0.02% —
77 LGT CAPITAL PARTNERS LTD. 0.28% of their portfolio PFAEFFIKON, V8 76,00076.0k $9.1m $9.1m 0.28% —
78 Legal & General Group Plc 0.00% of their portfolio London, X0 73,79073.8k $8.8m $8.8m 0.00% —
79 EASTERLY INVESTMENT PARTNERS LLC 0.84% of their portfolio BEVERLY, MA 73,69973.7k $8.8m $8.8m 0.84% —
80 Twin Tree Management, LP 0.23% of their portfolio DALLAS, TX 71,17171.2k $8.5m $8.5m 0.23% —
81 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 71,14271.1k $8.5m $8.5m 0.00% —
82 FULLER & THALER ASSET MANAGEMENT, INC. 0.06% of their portfolio SAN MATEO, CA 69,22169.2k $8.3m $8.3m 0.06% —
83 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 69,07669.1k $8.2m $8.2m 0.00% —
84 SHAKER INVESTMENTS LLC/OH 5.45% of their portfolio CLEVELAND, OH 68,10468.1k $8.1m $8.1m 5.45% —
85 THOMPSON SIEGEL & WALMSLEY LLC 0.13% of their portfolio RICHMOND, VA 64,94564.9k $7.8m $7.8m 0.13% —
86 Interval Partners, LP 0.46% of their portfolio NEW YORK, NY 64,91864.9k $7.8m $7.8m 0.46% —
87 STRS OHIO 0.04% of their portfolio COLUMBUS, OH 62,09562.1k $7.4m $7.4m 0.04% —
88 BRANT POINT INVESTMENT MANAGEMENT LLC 1.85% of their portfolio New York, NY 60,01960.0k $7.2m $7.2m 1.85% —
89 Venator Capital Management Ltd. 13.57% of their portfolio TORONTO, A6 59,40059.4k $7.1m $7.1m 13.57% —
90 Phocas Financial Corp. 1.07% of their portfolio ALAMEDA, CA 58,11858.1k $6.9m $6.9m 1.07% —
91 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 57,33057.3k $6.8m $6.8m 0.01% —
92 NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio ALBANY, NY 56,22256.2k $6.7m $6.7m 0.01% —
93 SCOPUS ASSET MANAGEMENT, L.P. 0.38% of their portfolio NEW YORK, NY 54,19254.2k $6.5m $6.5m 0.38% —
94 Crestline Management, L.P. 0.87% of their portfolio FORT WORTH, TX 53,66153.7k $6.4m $6.4m 0.87% —
95 CREDIT SUISSE AG/ 0.01% of their portfolio ZURICH, V8 53,22953.2k $6.4m $6.4m 0.01% —
96 PARADIGM CAPITAL MANAGEMENT INC/NY 0.43% of their portfolio ALBANY, NY 49,80049.8k $5.9m $5.9m 0.43% —
97 Qube Research & Technologies Ltd 0.04% of their portfolio LONDON, X0 49,62549.6k $5.9m $5.9m 0.04% —
98 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 49,41849.4k $5.9m $5.9m 0.01% —
99 AXA S.A. 0.01% of their portfolio PARIS, I0 48,40048.4k $5.8m $5.8m 0.01% —
100 Thrivent Financial for Lutherans 0.02% of their portfolio Minneapolis, MN 47,77247.8k $5.7m $5.7m 0.02% —