Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in WDFC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.0M | $412.0M | +0.2% | 10.115% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.0M | $211.7M | — | 5.199% | 0.01% |
| 3 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 634K | $129.4M | +20.3% | 3.176% | 0.38% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 606K | $123.5M | — | 3.033% | 0.00% |
| 5 | STATE STREET CORP | 526K | $107.4M | +1.3% | 2.636% | 0.00% |
| 6 | ALLIANCEBERNSTEIN L.P. | 470K | $92.5M | -11.2% | 2.351% | 0.03% |
| 7 | FIRST TRUST ADVISORS LP | 411K | $83.9M | +41.9% | 2.060% | 0.06% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 407K | $83.1M | +0.6% | 2.040% | 0.01% |
| 9 | MORGAN STANLEY | 305K | $62.2M | +58.3% | 1.526% | 0.00% |
| 10 | DIMENSIONAL FUND ADVISORS LP | 294K | $60.0M | +2.8% | 1.474% | 0.01% |
| 11 | GENEVA CAPITAL MANAGEMENT LLC | 282K | $57.6M | +18.7% | 1.414% | 1.22% |
| 12 | AMERIPRISE FINANCIAL INC | 246K | $50.1M | -2.3% | 1.231% | 0.01% |
| 13 | RENAISSANCE TECHNOLOGIES LLC | 203K | $41.5M | -19.3% | 1.019% | 0.06% |
| 14 | Conestoga Capital Advisors, LLC | 190K | $38.8M | -35.9% | 0.952% | 0.77% |
| 15 | ROYCE & ASSOCIATES LP | 181K | $36.9M | +9.5% | 0.906% | 0.36% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 152K | $31.1M | +3.4% | 0.762% | 0.00% |
| 17 | NORTHERN TRUST CORP | 146K | $29.9M | +2.3% | 0.733% | 0.00% |
| 18 | TWO SIGMA INVESTMENTS, LP | 122K | $24.8M | -5.8% | 0.610% | 0.02% |
| 19 | Bank of New York Mellon Corp | 119K | $24.2M | -1.8% | 0.594% | 0.00% |
| 20 | MARSHALL WACE, LLP | 118K | $24.1M | -4.8% | 0.593% | 0.03% |
| 21 | Ophir Asset Management Pty Ltd | 106K | $21.6M | — | 0.530% | 2.51% |
| 22 | NORDEA INVESTMENT MANAGEMENT AB | 101K | $20.6M | — | 0.505% | 0.02% |
| 23 | BARCLAYS PLC | 98K | $20.1M | +46.6% | 0.492% | 0.01% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 94K | $19.1M | — | 0.470% | 0.00% |
| 25 | CITADEL ADVISORS LLC | 91K | $18.6M | +209.9% | 0.457% | 0.01% |
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 WDFC — a direct measure of their conviction.
Filings activity in WDFC 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 | 371 | 1.6% | 51.83% | +1.28 pp | $2.31B | +2.5% |
| Q4 2025 | 377 | +2.7% | 50.55% | +0.32 pp | $2.25B | +0.6% |
| Q3 2025 | 367 | 2.1% | 50.23% | 9.60 pp | $2.24B | 16% |
| Q2 2025 | 375 | +2.2% | 59.83% | 3.02 pp | $2.66B | 4.8% |
| Q1 2025 | 367 | +0.0% | 62.85% | 2.05 pp | $2.80B | 3.2% |
| Q4 2024 | 367 | +1.9% | 64.90% | 4.38 pp | $2.89B | 6.3% |
| Q3 2024 | 360 | +6.5% | 69.28% | +8.78 pp | $3.09B | +15% |
| Q2 2024 | 338 | — | 60.50% | — | $2.69B | — |
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 WDFC stock.
Based on Q1 2026 13F filings, institutional ownership of WD-40 Company stands at 51.8%, held across 371 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of WDFC, with approximately 2,019,975 shares worth $0.41B as of Q1 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of WDFC, including RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC.
Our composite Smart Money Score for WDFC is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
46 institutions opened new positions in WDFC during Q1 2026, while 52 fully exited. 231 added to existing positions and 92 trimmed.
WDFC institutional ownership rose by 1.28 percentage points quarter-over-quarter, with a net change of -6 holders.
The top 10 institutions account for 59.2% of all reported 13F value in WDFC, and the top 25 account for 79.0%.
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.
WD-40 Company (WDFC) Institutional Ownership