TENNANT CO TNC
CIK 0000097134 · CUSIP 880345103
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $181.00M 2,725,952 shares | 0.00% | +1.35K(0.0%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 02 | VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history | $78.95M 1,189,027 shares | 0.00% | — | SEC filing ↗ May 8, 2026 | ▾ |
| 03 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $54.22M 816,615 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 04 | MAIRS & POWER INC CIK 1070134 · View history | $53.35M 803,464 shares | 0.55% | -268.16K(-25.0%)Reduced | SEC filing ↗ May 14, 2026 | ▾ |
| 05 | GAMCO INVESTORS, INC. ET AL CIK 807249 · View history | $46.90M 706,400 shares | 0.46% | +203.80K(+40.5%)Added | SEC filing ↗ May 14, 2026 | ▾ |
| 06 | STATE STREET CORP CIK 93751 · View history | $46.44M 699,399 shares | 0.00% | +8.95K(+1.3%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 07 | FMR LLC CIK 315066 · View history | $45.73M 688,713 shares | 0.00% | +677.44K(+6008.9%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $42.11M 634,158 shares | 0.01% | +49.14K(+8.4%)Added | SEC filing ↗ May 7, 2026 | ▾ |
| 09 | AMERICAN CENTURY COMPANIES INC CIK 748054 · View history | $38.88M 585,525 shares | 0.02% | +70.68K(+13.7%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $30.82M 464,147 shares | 0.00% | +31.64K(+7.3%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 11 | BROWN ADVISORY INC CIK 1345929 · View history | $29.43M 443,234 shares | 0.05% | -10.49K(-2.3%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 12 | Vision One Management Partners, LP CIK 1979969 · View history | $26.00M 391,593 shares | 11.21% | +47.01K(+13.6%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 13 | Simcoe Capital Management, LLC CIK 1633362 · View history | $24.76M 372,950 shares | 4.59% | +372.95KNew | SEC filing ↗ May 14, 2026 | ▾ |
| 14 | Invenomic Capital Management LP CIK 1769456 · View history | $23.20M 349,392 shares | 1.07% | +18.22K(+5.5%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 15 | Bank of New York Mellon Corp CIK 1390777 · View history | $22.12M 333,187 shares | 0.00% | +71.44K(+27.3%)Added | SEC filing ↗ May 5, 2026 | ▾ |
| 16 | P2 Capital Partners, LLC CIK 1406313 · View history | $20.20M 304,207 shares | 9.62% | -180.74K(-37.3%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 17 | SILVERCREST ASSET MANAGEMENT GROUP LLC CIK 1232395 · View history | $18.86M 284,059 shares | 0.14% | -48.14K(-14.5%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 18 | River Road Asset Management, LLC CIK 1341401 · View history | $17.94M 270,238 shares | 0.20% | +4.71K(+1.8%)Added | SEC filing ↗ Apr 30, 2026 | ▾ |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $16.95M 255,221 shares | 0.00% | -9.55K(-3.6%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 20 | UBS Group AG CIK 1610520 · View history | $16.40M 246,942 shares | 0.00% | +180.27K(+270.4%)Added | SEC filing ↗ May 5, 2026 | ▾ |
Showing 20 / 218 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 218 reporting institutions.
This page includes 20 of 218 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 218 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"880345103","quarter":"2026Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.