KIRBY CORP KEX
CIK 0000056047 · CUSIP 497266106
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 | VANGUARD GROUP INC CIK 102909 · View history | $627.56M 5,533,592 shares | 0.01% | -255.96K(-4.4%)Reduced | SEC filing ↗ Aug 11, 2025 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $553.81M 4,883,251 shares | 0.01% | -127.86K(-2.6%)Reduced | SEC filing ↗ Aug 12, 2025 | ▾ |
| 03 | MORGAN STANLEY CIK 895421 · View history | $376.63M 3,320,992 shares | 0.02% | -45.04K(-1.3%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 04 | NEUBERGER BERMAN GROUP LLC CIK 1465109 · Amended · View history | $275.89M 2,432,663 shares | 0.21% | -69.70K(-2.8%)Reduced | SEC filing ↗ Aug 25, 2025 | ▾ |
| 05 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $270.59M 2,385,905 shares | 0.06% | +18.79K(+0.8%)Added | SEC filing ↗ Aug 12, 2025 | ▾ |
| 06 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $258.90M 2,282,865 shares | 0.08% | +959.21K(+72.5%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 07 | Select Equity Group, L.P. CIK 1592643 · View history | $245.64M 2,165,929 shares | 1.05% | +211.23K(+10.8%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 08 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $214.12M 1,888,020 shares | 0.04% | +127.07K(+7.2%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 09 | STATE STREET CORP CIK 93751 · View history | $182.74M 1,611,358 shares | 0.01% | -102.23K(-6.0%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 10 | KING LUTHER CAPITAL MANAGEMENT CORP CIK 310051 · View history | $164.13M 1,447,268 shares | 0.71% | -62.19K(-4.1%)Reduced | SEC filing ↗ Aug 7, 2025 | ▾ |
| 11 | Encompass Capital Advisors LLC CIK 1541901 · View history | $138.97M 1,225,338 shares | 5.61% | +299.98K(+32.4%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 12 | FIRST TRUST ADVISORS LP CIK 1125816 · View history | $126.08M 1,111,692 shares | 0.10% | -124.62K(-10.1%)Reduced | SEC filing ↗ Aug 13, 2025 | ▾ |
| 13 | JENNISON ASSOCIATES LLC CIK 53417 · View history | $118.59M 1,045,674 shares | 0.07% | -254.43K(-19.6%)Reduced | SEC filing ↗ Aug 1, 2025 | ▾ |
| 14 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $110.24M 971,810 shares | 0.01% | -19.21K(-1.9%)Reduced | SEC filing ↗ Aug 8, 2025 | ▾ |
| 15 | BANK OF AMERICA CORP /DE/ CIK 70858 · View history | $91.05M 802,865 shares | 0.01% | +6.47K(+0.8%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 16 | FMR LLC CIK 315066 · View history | $90.62M 799,070 shares | 0.01% | +101.83K(+14.6%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 17 | MACQUARIE GROUP LTD CIK 1418333 · View history | $88.86M 783,518 shares | 0.11% | -3.63K(-0.5%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 18 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $85.41M 753,078 shares | 0.04% | +60.39K(+8.7%)Added | SEC filing ↗ Aug 14, 2025 | ▾ |
| 19 | Park West Asset Management LLC CIK 1386928 · View history | $85.06M 750,000 shares | 6.49% | -26.00K(-3.4%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
| 20 | ArrowMark Colorado Holdings LLC CIK 1483859 · View history | $83.93M 740,087 shares | 1.51% | -132.02K(-15.1%)Reduced | SEC filing ↗ Aug 14, 2025 | ▾ |
Showing 20 / 410 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 410 reporting institutions.
This page includes 20 of 410 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 410 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":"497266106","quarter":"2025Q2","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.