Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in WCC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.4M | $2.57B | +17.1% | 19.265% | 0.05% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 3.6M | $985.1M | +29.3% | 7.386% | 0.18% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 2.2M | $611.0M | -0.7% | 4.581% | 0.13% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $598.5M | — | 4.488% | 0.01% |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.1M | $567.5M | — | 4.255% | 0.03% |
| 6 | Invesco Ltd. | 1.5M | $413.0M | +9.1% | 3.097% | 0.06% |
| 7 | STATE STREET CORP | 1.5M | $400.9M | +1.4% | 3.006% | 0.01% |
| 8 | BANK OF AMERICA CORP /DE/ | 963K | $263.4M | +6.5% | 1.975% | 0.02% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 938K | $256.8M | +8.6% | 1.925% | 0.02% |
| 10 | Bank of New York Mellon Corp | 907K | $248.3M | +10.3% | 1.862% | 0.05% |
| 11 | MORGAN STANLEY | 711K | $194.6M | +5.0% | 1.459% | 0.01% |
| 12 | Allspring Global Investments Holdings, LLC | 611K | $172.7M | -51.9% | 1.254% | 0.29% |
| 13 | LYRICAL ASSET MANAGEMENT LP | 607K | $166.2M | -6.8% | 1.246% | 2.54% |
| 14 | Alyeska Investment Group, L.P. | 562K | $153.8M | -14.2% | 1.153% | 0.44% |
| 15 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 559K | $152.9M | -4.0% | 1.146% | 0.50% |
| 16 | NEW SOUTH CAPITAL MANAGEMENT INC | 557K | $152.4M | -9.8% | 1.143% | 7.30% |
| 17 | FMR LLC | 508K | $138.9M | +3.7% | 1.042% | 0.01% |
| 18 | AQR CAPITAL MANAGEMENT LLC | 520K | $138.8M | -4.3% | 1.067% | 0.06% |
| 19 | Artisan Partners Limited Partnership | 450K | $123.1M | -5.8% | 0.923% | 0.20% |
| 20 | NORTHERN TRUST CORP | 434K | $118.8M | +1.2% | 0.891% | 0.02% |
| 21 | RAYMOND JAMES FINANCIAL INC | 424K | $115.7M | +1.9% | 0.869% | 0.04% |
| 22 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 405K | $110.7M | +8.4% | 0.830% | 1.11% |
| 23 | DAVIS SELECTED ADVISERS | 381K | $104.3M | +4.5% | 0.782% | 0.48% |
| 24 | Holocene Advisors, LP | 379K | $103.8M | — | 0.778% | 0.25% |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 379K | $103.7M | +2.7% | 0.778% | 0.02% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in WCC — a direct measure of their conviction.
Filings activity in WCC during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 612 | +1.5% | 74.51% | +8.07 pp | $12.60B | +12% |
| Q4 2025 | 603 | +12% | 66.44% | +9.10 pp | $11.23B | +16% |
| Q3 2025 | 539 | +4.1% | 57.34% | +8.33 pp | $9.69B | +17% |
| Q2 2025 | 518 | +0.4% | 49.01% | +9.19 pp | $8.28B | +23% |
| Q1 2025 | 516 | +0.8% | 39.82% | 5.80 pp | $6.73B | 13% |
| Q4 2024 | 512 | +6.0% | 45.62% | +5.67 pp | $7.71B | +14% |
| Q3 2024 | 483 | +4.5% | 39.95% | 2.12 pp | $6.75B | 5.1% |
| Q2 2024 | 462 | — | 42.07% | — | $7.11B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying WCC stock.
Based on Q1 2026 13F filings, institutional ownership of WESCO International, Inc. stands at 74.5%, held across 612 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of WCC, with approximately 9,390,627 shares worth $2.57B as of Q1 2026.
No marquee "smart money" managers (Berkshire, Burry, ARK, Tiger Global, Pershing Square, Baupost, etc.) currently appear among the top 25 institutional holders of WCC.
Our composite Smart Money Score for WCC is 48 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
100 institutions opened new positions in WCC during Q1 2026, while 91 fully exited. 405 added to existing positions and 104 trimmed.
WCC institutional ownership rose by 8.07 percentage points quarter-over-quarter, with a net change of +9 holders.
The top 10 institutions account for 54.9% of all reported 13F value in WCC, and the top 25 account for 71.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
WESCO International, Inc. (WCC) Institutional Ownership