IDEX Corporation (IEX) Ownership
IEX ownership summary
as of October 18, 2026- Institutions
- 105.4% of shares outstanding
- Insiders
- 0.22% of shares outstanding
- Shares outstanding
- 73.7M
- Float
- 73.5M shares available to trade
- Short interest
- 3.91% 2.5M shares short
- Days to cover
- 4.26 short interest up 33.1% vs prior month
- Institutions 105.36%
- Insiders 0.22%
IEX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 7.78% | 5.7M | $1.35B | +58,080 (+1.0%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 6.57% | 4.8M | $1.14B | −10,292 (−0.2%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 5.07% | 3.7M | $879.6M | −34,463 (−0.9%) | June 30, 2026 |
| 4 | State Street Corp | 4.50% | 3.3M | $781.4M | +111,997 (+3.5%) | June 30, 2026 |
| 5 | PRIMECAP Management Company | 4.48% | 3.3M | $777.3M | −2,865 (−0.1%) | June 30, 2026 |
| 6 | Morgan Stanley - Brokerage Accounts | 3.82% | 2.8M | $664.1M | −279,664 (−9.0%) | June 30, 2026 |
| 7 | Millennium Management LLC | 3.21% | 2.4M | $558.2M | +373,890 (+18.7%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 2.85% | 2.1M | $494.1M | +7,042 (+0.3%) | June 30, 2026 |
| 9 | Nordea Investment Mgmt Bank Demark A/s | 2.50% | 1.8M | $433.9M | −31,320 (−1.7%) | June 30, 2026 |
| 10 | Victory Capital Management Inc. | 2.07% | 1.5M | $359.5M | +14,354 (+0.9%) | June 30, 2026 |
| 11 | Amvescap Plc. | 2.04% | 1.5M | $353.4M | −125,948 (−7.7%) | June 30, 2026 |
| 12 | Amundi | 1.98% | 1.5M | $343.7M | +239,579 (+19.6%) | June 30, 2026 |
| 13 | Pictet Asset Manangement SA | 1.71% | 1.3M | $296.4M | +606,547 (+93.0%) | June 30, 2026 |
| 14 | Wellington Management Company LLP | 1.55% | 1.1M | $268.3M | −599,314 (−34.5%) | June 30, 2026 |
| 15 | Alyeska Investment Group, L.P. | 1.41% | 1.0M | $245.6M | +525,048 (+101.4%) | June 30, 2026 |
| 16 | Impax Asset Management Group PLC | 1.30% | 962K | $226.6M | +14,054 (+1.5%) | June 30, 2026 |
| 17 | NORGES BANK | 1.24% | 917K | $215.9M | +1,688 (+0.2%) | June 30, 2026 |
| 18 | Point72 Asset Management, L.P. | 1.23% | 906K | $213.4M | +75,080 (+9.0%) | June 30, 2026 |
| 19 | Dimensional Fund Advisors, Inc. | 1.15% | 850K | $200.1M | +34,120 (+4.2%) | June 30, 2026 |
| 20 | Balyasny Asset Management LLC | 1.15% | 847K | $199.4M | +30,444 (+3.7%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 2.1M shares and 7 cut 1.1M.
IEX top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.19% | 2.3M | $553.4M | −6,239 (−0.3%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 2.62% | 1.9M | $455.8M | −31,340 (−1.6%) | September 30, 2026 |
| 3 | Vanguard Small Cap Index | 2.25% | 1.7M | $390.9M | −43,311 (−2.5%) | September 30, 2026 |
| 4 | Vanguard PRIMECAP Inv | 1.94% | 1.4M | $336.7M | — | June 30, 2026 |
| 5 | Victory Sycamore Established Value R | 1.47% | 1.1M | $255.6M | — | June 30, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.46% | 1.1M | $254.4M | −1,603 (−0.1%) | September 30, 2026 |
| 7 | Vanguard Capital Opportunity Inv | 1.37% | 1.0M | $238.3M | −200 (−0.0%) | June 30, 2026 |
| 8 | iShares Core S&P 500 ETF | 1.33% | 983K | $231.4M | −1,591 (−0.2%) | September 30, 2026 |
| 9 | Fidelity 500 Index | 1.30% | 961K | $226.3M | +3,687 (+0.4%) | August 31, 2026 |
| 10 | State Street® SPDR® S&P 500® ETF | 1.24% | 911K | $214.5M | — | September 30, 2026 |
| 11 | Pictet-Water I EUR | 1.18% | 871K | $205.3M | +3,491 (+0.4%) | September 30, 2026 |
| 12 | Invesco S&P 500® Equal Weight ETF | 1.18% | 869K | $204.7M | −1,805 (−0.2%) | September 30, 2026 |
| 13 | Eaton Vance Atlanta Capital SMID-Cap I | 1.02% | 750K | $176.6M | −10,000 (−1.3%) | August 31, 2026 |
| 14 | Global X US Infrastructure Dev ETF | 0.83% | 608K | $143.3M | +4,320 (+0.7%) | September 30, 2026 |
| 15 | Nordea 1 - Global Climate & Envir BI EUR | 0.70% | 515K | $121.2M | — | August 31, 2026 |
| 16 | BNP Paribas Aqua C C | 0.65% | 483K | $113.7M | −69 (−0.0%) | August 31, 2026 |
| 17 | Vanguard PRIMECAP Core Inv | 0.65% | 482K | $113.5M | — | June 30, 2026 |
| 18 | BNP Paribas Aqua I | 0.65% | 479K | $112.9M | −43 (−0.0%) | August 31, 2026 |
| 19 | FAM Value Investor | 0.59% | 432K | $101.6M | — | September 30, 2026 |
| 20 | Vanguard Dividend Appreciation ETF | 0.57% | 417K | $98.2M | −1,889 (−0.5%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
IEX insider transactions
latest 8| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-10 | Ro Khanna | Sell | $196.04 | — | — |
| 2026-01-29 | Ro Khanna | Buy | $199.57 | — | — |
| 2025-10-31 | Lisa C. McClain | Sell | $171.56 | — | — |
| 2025-10-30 | Lisa C. McClain | Buy | $170.64 | — | — |
| 2025-10-30 | Lisa C. McClain | Sell | $170.64 | — | — |
| 2025-08-04 | Lisa C. McClain | Buy | $158.29 | — | — |
| 2025-08-04 | Ro Khanna | Sell | $158.29 | — | — |
| 2025-06-05 | Akhil Mahendra | Sell | $180.89 | 250 | $45,222 |
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.
IEX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns IEX
Institutional investors own 105.4% of IDEX's shares and insiders 0.22%. The largest holder is BlackRock Inc with 7.78% of the shares (5.7M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 7 reduced their stake in the latest filings. Short interest is 3.91% of the float, or 4.26 days of average trading volume. The share count fell 4.1% since 2014.
Related: IEX analyst forecast, IEX key metrics, IEX dividend history. See the IEX stock overview for the latest quote and news.
IEX ownership FAQ
Who owns the most IDEX stock?
The largest shareholders of IDEX are BlackRock Inc (7.78%), Vanguard Capital Management, LLC (6.57%), Vanguard Portfolio Management, LLC (5.07%), State Street Corp (4.50%), PRIMECAP Management Company (4.48%).
What percentage of IDEX is owned by institutions?
Institutions hold 105.4% of IDEX's shares outstanding; insiders hold 0.22%.
Which funds own IDEX?
The largest fund holders of IDEX are Vanguard MStar Total Stk Mkt Idx Invest (3.19%), Vanguard 500 Index Investor (2.62%), Vanguard Small Cap Index (2.25%), Vanguard PRIMECAP Inv (1.94%), Victory Sycamore Established Value R (1.47%).
What is IDEX's short interest?
2.5M shares of IDEX were sold short, 3.91% of the float; at the average daily volume it would take 4.26 days to cover.
Are insiders buying or selling IDEX?
Of the latest 8 reported insider transactions in IDEX (since June 5, 2025), 3 were purchases and 5 were sales.
How many shares of IDEX are outstanding?
IDEX has 73.7M shares outstanding, of which 73.5M are in the public float.