WESCO International, Inc.
WESCO International, Inc. (WCC) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WCC · as of Sep 30, 2025
Ownership Breakdown
581
Institutional Holders
▲ 33 vs Q2
$10.26B
Total Inst. Value
▲ $1.28B vs Q2
48.70M
Shares Outstanding
freeFloat 97.91%
48.76M
13F Shares Held
▲ 136,023 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WCC largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. wholesale-electrical apparatus & equipment, wiring supplies | 5.97M | 12.06% | 12.06% | $1.26T | Nov 12, 2025 | ▲ 1.13M |
VANGUARD GROUP INC wholesale-electrical apparatus & equipment, wiring supplies | 4.61M | 9.32% | 9.32% | $975.51B | Nov 7, 2025 | ▲ 204.5K |
WELLINGTON MANAGEMENT GROUP LLP wholesale-electrical apparatus & equipment, wiring supplies | 3.39M | 6.84% | 6.84% | $716.23B | Nov 14, 2025 | ▲ 1.38M |
DIMENSIONAL FUND ADVISORS LP wholesale-electrical apparatus & equipment, wiring supplies | 2.22M | 4.49% | 4.49% | $469.58B | Nov 12, 2025 | ▼ 66.4K |
BAUPOST GROUP LLC/MA wholesale-electrical apparatus & equipment, wiring supplies | 1.50M | 3.04% | 3.04% | $317.92B | Nov 13, 2025 | ▼ 704.4K |
STATE STREET CORP wholesale-electrical apparatus & equipment, wiring supplies | 1.46M | 2.95% | 2.95% | $309.18B | Nov 14, 2025 | ▲ 71.6K |
INVESCO LTD. wholesale-electrical apparatus & equipment, wiring supplies | 1.39M | 2.80% | 2.80% | $292.95B | Nov 13, 2025 | ▲ 21.0K |
ALLSPRING GLOBAL INVESTMENTS HOLDINGS, LLC wholesale-electrical apparatus & equipment, wiring supplies | 1.32M | 2.67% | 2.67% | $281.46B | Oct 20, 2025 | ▼ 269.5K |
GEODE CAPITAL MANAGEMENT, LLC wholesale-electrical apparatus & equipment, wiring supplies | 849.5K | 1.72% | 1.72% | $179.70B | Nov 12, 2025 | ▲ 65.7K |
BANK OF NEW YORK MELLON CORP wholesale-electrical apparatus & equipment, wiring supplies | 784.6K | 1.58% | 1.58% | $165.94B | Nov 3, 2025 | ▼ 11.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+4.75M shares1
New Positions
first time holders23
Decreased
−2.66M shares0
Sold Out
fully exitedNet shares change (top 50)
+2.08M
+4.75M / −2.66M
Net new holders
+2
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WCC insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Porwal Hemant EVP Supply Chain & Operations | May 11, 2026 | Sale | 4,445 | $363.21 | $1.61M | 16.6K | Form 4 ↗ |
Porwal Hemant EVP Supply Chain & Operations | May 6, 2026 | D-Return | 1,645 | $363.12 | $597.3K | 24.5K | Form 4 ↗ |
Porwal Hemant EVP Supply Chain & Operations | May 6, 2026 | Tax Withhold | 3,420 | $363.12 | $1.24M | 21.1K | Form 4 ↗ |
Porwal Hemant EVP Supply Chain & Operations | May 6, 2026 | Sale | 2,770 | $360.64 | $999.0K | 16.6K | Form 4 ↗ |
Lazzaris Diane EVP and General Counsel | May 6, 2026 | Sale | 4,726 | $358.87 | $1.70M | 24.8K | Form 4 ↗ |
Lazzaris Diane EVP and General Counsel | May 6, 2026 | Sale | 5,024 | $360.02 | $1.81M | 19.8K | Form 4 ↗ |
Lazzaris Diane EVP and General Counsel | May 6, 2026 | Sale | 160 | $360.68 | $57.7K | 19.6K | Form 4 ↗ |
Kulasa Matthew S SVP, Corp. Controller & CAO | May 5, 2026 | Sale | 1,030 | $351.86 | $362.4K | 3.1K | Form 4 ↗ |
Khurana Akash EVP, Chief Info & Digital Off. | May 6, 2026 | Sale | 830 | $357.69 | $296.9K | 33.9K | Form 4 ↗ |
Khurana Akash EVP, Chief Info & Digital Off. | May 6, 2026 | Sale | 1,200 | $358.85 | $430.6K | 32.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
WESCO International, Inc. (WCC) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 2.09%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of WESCO International, Inc. is BLACKROCK, INC., holding approximately 5.97 million shares — equal to 12.06% of outstanding shares — as of September 30, 2025.
A total of 581 institutional investors currently hold WCC stock, with a combined institutional value of approximately $10.26 billion as of the most recent 13F filing period.
Frequently asked questions
WCC ownershipWESCO International, Inc. (WCC) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is BLACKROCK, INC. with a 12.06% stake. Company insiders hold 2.09%. Data sourced from SEC Form 13F as of September 30, 2025.