Ranked by reported Q2 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. | 9.0M | $3.09B | -4.6% | 18.394% | 0.05% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | $760.1M | +0.6% | 4.518% | 0.02% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.1M | $715.8M | -0.1% | 4.255% | 0.03% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 2.0M | $697.2M | -43.9% | 4.144% | 0.12% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 2.0M | $695.6M | -9.8% | 4.134% | 0.13% |
| 6 | STATE STREET CORP | 1.5M | $523.6M | +3.5% | 3.112% | 0.01% |
| 7 | JANE STREET GROUP, LLC | 1.0M | $349.7M | +2017.5% | 2.078% | 0.03% |
| 8 | Invesco Ltd. | 972K | $335.6M | -35.6% | 1.995% | 0.03% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 928K | $320.6M | -1.1% | 1.905% | 0.02% |
| 10 | NORGES BANK | 860K | $297.2M | — | 1.766% | 0.03% |
| 11 | BANK OF AMERICA CORP /DE/ | 858K | $296.3M | -10.9% | 1.761% | 0.02% |
| 12 | Bank of New York Mellon Corp | 722K | $249.5M | -20.4% | 1.483% | 0.04% |
| 13 | Alyeska Investment Group, L.P. | 654K | $225.8M | +16.2% | 1.342% | 0.58% |
| 14 | MORGAN STANLEY | 634K | $219.2M | -10.8% | 1.303% | 0.01% |
| 15 | CITIGROUP INC | 624K | $215.5M | +780.9% | 1.281% | 0.07% |
| 16 | AQR CAPITAL MANAGEMENT LLC | 619K | $213.9M | +19.1% | 1.271% | 0.07% |
| 17 | LYRICAL ASSET MANAGEMENT LP | 576K | $199.0M | -5.2% | 1.183% | 2.52% |
| 18 | FMR LLC | 563K | $194.4M | +10.8% | 1.156% | 0.01% |
| 19 | NEW SOUTH CAPITAL MANAGEMENT INC | 512K | $176.9M | -8.1% | 1.051% | 7.75% |
| 20 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 507K | $175.2M | -9.2% | 1.041% | 0.53% |
| 21 | CITADEL ADVISORS LLC | 479K | $165.5M | +654.0% | 0.984% | 0.01% |
| 22 | Artisan Partners Limited Partnership | 427K | $147.4M | -5.2% | 0.876% | 0.23% |
| 23 | NORTHERN TRUST CORP | 422K | $145.7M | -2.9% | 0.866% | 0.02% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 401K | $138.4M | +5.7% | 0.823% | 0.02% |
| 25 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 388K | $134.1M | +8.6% | 0.797% | 0.16% |
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 Q2 2026, grouped by how each filer changed its position.
Institutions that opened a new WCC position in Q2 2026
Institutions that fully closed their WCC position in Q2 2026
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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 703 | +13% | 96.92% | 3.55 pp | $15.70B | +23% |
| Q1 2026 | 621 | +2.0% | 100.47% | 0.18 pp | $12.72B | +13% |
| Q4 2025 | 609 | +12% | 100.65% | 0.09 pp | $11.27B | +16% |
| Q3 2025 | 546 | +5.4% | 100.74% | +0.79 pp | $9.73B | +17% |
| Q2 2025 | 518 | +0.4% | 99.95% | +3.87 pp | $8.28B | +23% |
| Q1 2025 | 516 | +0.8% | 96.08% | +0.99 pp | $6.73B | 13% |
| Q4 2024 | 512 | +6.0% | 95.09% | +6.33 pp | $7.71B | +14% |
| Q3 2024 | 483 | — | 88.76% | — | $6.75B | — |
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 Q2 2026 13F filings, institutional ownership of WESCO International, Inc. stands at 96.9%, held across 703 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of WCC, with approximately 8,958,787 shares worth $3.09B as of Q2 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of WCC, including JANE STREET GROUP, LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for WCC is 57 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
113 institutions opened new positions in WCC during Q2 2026, while 33 fully exited. 485 added to existing positions and 88 trimmed.
WCC institutional ownership fell by 3.55 percentage points quarter-over-quarter, with a net change of +82 holders.
The top 10 institutions account for 49.6% of all reported 13F value in WCC, and the top 25 account for 68.1%.
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