Cabot Corporation (CBT) Ownership
CBT ownership summary
as of October 18, 2026- Institutions
- 106.0% of shares outstanding
- Insiders
- 1.35% of shares outstanding
- Shares outstanding
- 51.6M
- Float
- 50.9M shares available to trade
- Short interest
- 11.69% 4.4M shares short
- Days to cover
- 11.08 short interest down 3.0% vs prior month
- Institutions 105.97%
- Insiders 1.35%
CBT top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 13.51% | 7.0M | $518.0M | +357,102 (+5.4%) | June 30, 2026 |
| 2 | Earnest Partners LLC | 6.48% | 3.3M | $248.6M | +187,072 (+5.9%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 5.96% | 3.1M | $228.6M | −44,407 (−1.4%) | June 30, 2026 |
| 4 | American Century Companies Inc | 5.36% | 2.8M | $205.6M | +530,685 (+23.7%) | June 30, 2026 |
| 5 | Wellington Management Company LLP | 4.68% | 2.4M | $179.5M | −1.1M (−32.2%) | June 30, 2026 |
| 6 | Vanguard Capital Management, LLC | 4.50% | 2.3M | $172.4M | −3,165 (−0.1%) | June 30, 2026 |
| 7 | State Street Corp | 4.19% | 2.2M | $160.9M | +138,098 (+6.8%) | June 30, 2026 |
| 8 | Fuller & Thaler Asset Management Inc | 3.88% | 2.0M | $148.8M | −44,746 (−2.2%) | June 30, 2026 |
| 9 | Dimensional Fund Advisors, Inc. | 3.73% | 1.9M | $143.1M | +183,423 (+10.5%) | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 3.44% | 1.8M | $132.1M | +423,987 (+31.3%) | June 30, 2026 |
| 11 | Bank of America Corp | 3.22% | 1.7M | $123.3M | +143,944 (+9.5%) | June 30, 2026 |
| 12 | FMR Inc | 3.02% | 1.6M | $115.9M | +197,316 (+14.5%) | June 30, 2026 |
| 13 | T. Rowe Price Investment Management,Inc. | 2.72% | 1.4M | $104.3M | +427,717 (+43.8%) | June 30, 2026 |
| 14 | SEI Investments Co | 2.33% | 1.2M | $89.4M | +151,474 (+14.4%) | June 30, 2026 |
| 15 | Snyder Capital Management LP | 1.74% | 900K | $66.9M | −25,048 (−2.7%) | June 30, 2026 |
| 16 | AQR Capital Management LLC | 1.69% | 870K | $64.6M | +18,885 (+2.2%) | June 30, 2026 |
| 17 | Morgan Stanley - Brokerage Accounts | 1.62% | 837K | $62.2M | +39,655 (+5.0%) | June 30, 2026 |
| 18 | T. Rowe Price Associates, Inc. | 1.60% | 824K | $61.2M | +339,481 (+70.0%) | June 30, 2026 |
| 19 | LSV Asset Management | 1.55% | 800K | $59.5M | +207,784 (+35.1%) | June 30, 2026 |
| 20 | Charles Schwab Investment Management Inc | 1.36% | 701K | $52.1M | −44,532 (−6.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 3.3M shares and 6 cut 1.3M.
CBT top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Avantis US Small Cap Value ETF | 5.45% | 2.8M | $209.0M | +4,680 (+0.2%) | September 30, 2026 |
| 2 | iShares Core S&P Mid-Cap ETF | 3.56% | 1.8M | $136.5M | −660 (−0.0%) | September 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 3.18% | 1.6M | $121.8M | −2,019 (−0.1%) | August 31, 2026 |
| 4 | Undiscovered Managers Behavioral Val L | 3.01% | 1.6M | $115.6M | −34,600 (−2.2%) | August 31, 2026 |
| 5 | iShares Russell 2000 ETF | 2.60% | 1.3M | $99.9M | −15,488 (−1.1%) | September 30, 2026 |
| 6 | Vanguard Small Cap Index | 2.30% | 1.2M | $88.3M | +1,877 (+0.2%) | August 31, 2026 |
| 7 | Vanguard Explorer Inv | 2.05% | 1.1M | $78.5M | −250,970 (−19.2%) | June 30, 2026 |
| 8 | Vanguard MStar Small Cap Value Index | 1.46% | 754K | $56.0M | +578 (+0.1%) | August 31, 2026 |
| 9 | Strategic Advisers Fidelity US TtlStk | 1.39% | 720K | $53.5M | +84,019 (+13.2%) | August 31, 2026 |
| 10 | T. Rowe Price Small-Cap Value | 1.32% | 682K | $50.6M | −6,247 (−0.9%) | August 31, 2026 |
| 11 | Fidelity Small Cap Index | 1.11% | 571K | $42.5M | +4,716 (+0.8%) | July 31, 2026 |
| 12 | Fidelity Series Value Discovery | 1.03% | 532K | $39.5M | +40,901 (+8.3%) | August 31, 2026 |
| 13 | iShares Russell 2000 Value ETF | 0.94% | 486K | $36.1M | +736 (+0.2%) | September 30, 2026 |
| 14 | Harbor Small Cap Value Instl | 0.82% | 422K | $31.4M | −17,042 (−3.9%) | June 30, 2026 |
| 15 | American Funds SMALLCAP World A | 0.80% | 414K | $30.8M | — | June 30, 2026 |
| 16 | DFA US Targeted Value I | 0.74% | 383K | $28.5M | +48,437 (+14.5%) | August 31, 2026 |
| 17 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.73% | 378K | $28.0M | −4,256 (−1.1%) | August 31, 2026 |
| 18 | T. Rowe Price Integrated US Sm Gr Eq | 0.64% | 331K | $24.6M | — | August 31, 2026 |
| 19 | Dimensional US Targeted Value ETF | 0.63% | 327K | $24.3M | +292 (+0.1%) | September 30, 2026 |
| 20 | ProShares S&P MidCap 400 Dividend Arst | 0.59% | 302K | $22.4M | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
CBT insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-08-14 | Sean D Keohane | Sell | $79.28 | 114,436 | $9.1M |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
CBT shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns CBT
Institutional investors own 106.0% of Cabot's shares and insiders 1.35%. The largest holder is BlackRock Inc with 13.51% of the shares (7.0M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 11.69% of the float, or 11.08 days of average trading volume. The share count fell 18.1% since 2014.
Related: CBT analyst forecast, CBT key metrics, CBT dividend history. See the CBT stock overview for the latest quote and news.
CBT ownership FAQ
Who owns the most Cabot stock?
The largest shareholders of Cabot are BlackRock Inc (13.51%), Earnest Partners LLC (6.48%), Vanguard Portfolio Management, LLC (5.96%), American Century Companies Inc (5.36%), Wellington Management Company LLP (4.68%).
What percentage of Cabot is owned by institutions?
Institutions hold 106.0% of Cabot's shares outstanding; insiders hold 1.35%.
Which funds own Cabot?
The largest fund holders of Cabot are Avantis US Small Cap Value ETF (5.45%), iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.18%), Undiscovered Managers Behavioral Val L (3.01%), iShares Russell 2000 ETF (2.60%).
What is Cabot's short interest?
4.4M shares of Cabot were sold short, 11.69% of the float; at the average daily volume it would take 11.08 days to cover.
Are insiders buying or selling Cabot?
Of the latest 1 reported insider transactions in Cabot (since August 14, 2025), 0 were purchases and 1 were sales.
How many shares of Cabot are outstanding?
Cabot has 51.6M shares outstanding, of which 50.9M are in the public float.