IDEX CORP IEX
COM · Common Stock · CUSIP 45167R104 · ISIN US45167R1041
Publicly listed company that makes fluidics systems and specialty engineered products
- SectorIndustrials
- IndustryPumps & Pumping Equipment
- HeadquartersNorthbrook, IL
- Founded1988
- Websiteidexcorp.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($27.5m this quarter). Holder counts are more reliable. Shares outstanding: 73.7m as of 2026-07-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $226.70. Options: 9 managers hold calls ($57.1m notional), 6 hold puts ($24.9m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 558 |
| Q4 2022 | 616 |
| Q1 2023 | 617 |
| Q2 2023 | 641 |
| Q3 2023 | 622 |
| Q4 2023 | 622 |
| Q1 2024 | 626 |
| Q2 2024 | 633 |
| Q3 2024 | 617 |
| Q4 2024 | 632 |
| Q1 2025 | 642 |
| Q2 2025 | 641 |
| Q3 2025 | 635 |
| Q4 2025 | 631 |
| Q1 2026 | 678 |
| Q2 2026 | 687 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 272 | 312 |
| Q4 2024 | 258 | 276 |
| Q1 2025 | 293 | 292 |
| Q2 2025 | 332 | 283 |
| Q3 2025 | 284 | 326 |
| Q4 2025 | 264 | 308 |
| Q1 2026 | 329 | 266 |
| Q2 2026 | 335 | 277 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $4.5m | $1.5m | 0.33 |
| Q4 2025 | $20.5m | $1.9m | 0.09 |
| Q1 2026 | $14.4m | $12.1m | 0.84 |
| Q2 2026 | $57.1m | $24.9m | 0.44 |
Biggest buyers
| Pictet Asset Management Holding SA | Added | +606.5k |
| Alyeska Investment Group, L.P. | Added | +525.0k |
| MILLENNIUM MANAGEMENT LLC | Added | +373.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Added | +327.1k |
| Amundi | Added | +239.6k |
| Freestone Grove Partners LP | Added | +234.5k |
| UBS Group AG | Added | +183.4k |
| Erste Asset Management GmbH | Added | +150.1k |
| FMR LLC | Added | +130.6k |
| Caisse de depot et placement du Quebec | Added | +127.2k |
Biggest sellers
| VAN ECK ASSOCIATES CORP | Sold out | -936.8k |
| JANE STREET GROUP, LLC | Reduced | -753.7k |
| BANK OF AMERICA CORP /DE/ | Reduced | -739.0k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -599.3k |
| Champlain Investment Partners, LLC | Reduced | -461.7k |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | Sold out | -326.3k |
| MORGAN STANLEY | Reduced | -279.7k |
| Alecta Tjanstepension Omsesidigt | Reduced | -199.5k |
| Interval Partners, LP | Reduced | -187.8k |
| FIRST TRUST ADVISORS LP | Reduced | -181.7k |
Biggest calls
| MILLENNIUM MANAGEMENT LLC | New | $17.0m75.0k shares |
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $13.6m60.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $5.7m25.3k shares |
| JPMORGAN CHASE & CO | New | $5.0m22.2k shares |
| JANE STREET GROUP, LLC | Added | $4.7m20.5k shares |
| Caption Management, LLC | New | $3.2m14.3k shares |
| SIMPLEX TRADING, LLC | Added | $3.2m13.9k shares |
| UBS Group AG | Unchanged | $2.8m12.3k shares |
| CITADEL ADVISORS LLC | Reduced | $1.8m8.1k shares |
Biggest puts
| SCOPUS ASSET MANAGEMENT, L.P. | Added | $13.6m60.0k shares |
| CITADEL ADVISORS LLC | Added | $8.0m35.1k shares |
| Walleye Trading LLC | New | $2.3m10.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $635.5k2.8k shares |
| JANE STREET GROUP, LLC | Reduced | $272.3k1.2k shares |
| SIMPLEX TRADING, LLC | Added | $45.4k200 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 7.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (2.3%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $45.2k | — |
| Q3 2025 | 1 | $399.0k | 0 | — | — |
| Q4 2025 | 1 | $101.6k | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 1 | $3.3m | — |
| Q3 2026 | 0 | — | 1 | $91.9k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-12 | Anderson Lisa M SVP, GC, CAO & Corp Sec | Sold | $91.9k385 shares |
| 2026-05-11 | ASHLEMAN ERIC D CEO and President, director | Sold | $3.3m15.4k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 5.7m $1.3bn | Added +58.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 4.8m $1.1bn | Reduced -10.3k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.04% of their portfolio | 3.7m $847.5m | Reduced -34.5k |
| STATE STREET CORP 0.02% of their portfolio | 3.3m $752.9m | Added +112.0k |
| PRIMECAP MANAGEMENT CO/CA/ 0.44% of their portfolio | 3.3m $749.0m | Reduced -2.9k |
| MORGAN STANLEY 0.03% of their portfolio | 2.8m $639.9m | Reduced -279.7k |
| MILLENNIUM MANAGEMENT LLC 0.36% of their portfolio | 2.4m $537.8m | Added +373.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.03% of their portfolio | 2.1m $474.3m | Added +7.0k |
| NORDEA INVESTMENT MANAGEMENT AB 0.34% of their portfolio | 1.8m $419.0m | Reduced -31.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.19% of their portfolio | 1.5m $346.4m | Added +14.4k |
| Invesco Ltd. 0.03% of their portfolio | 1.5m $340.5m | Reduced -125.9k |
| Amundi 0.08% of their portfolio | 1.5m $331.0m | Added +239.6k |
| Pictet Asset Management Holding SA 0.27% of their portfolio | 1.3m $285.6m | Added +606.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.04% of their portfolio | 1.1m $258.5m | Reduced -599.3k |
| Alyeska Investment Group, L.P. 0.61% of their portfolio | 1.0m $236.6m | Added +525.0k |
| Impax Asset Management Group plc 1.42% of their portfolio | 962.0k $218.3m | Added +14.1k |
| NORGES BANK 0.02% of their portfolio | 916.5k $208.0m | Not comparable |
| Point72 Asset Management, L.P. 0.31% of their portfolio | 905.9k $205.6m | Added +75.1k |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 849.6k $192.8m | Added +34.1k |
| Balyasny Asset Management L.P. 0.35% of their portfolio | 846.6k $192.1m | Added +30.4k |
| UBS Group AG 0.03% of their portfolio | 825.1k $187.3m | Added +183.4k |
| Fenimore Asset Management Inc 3.76% of their portfolio | 799.6k $181.5m | Added +1.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.03% of their portfolio | 767.5k $174.2m | Added +43.9k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 763.6k $173.3m | Added +7.7k |
| Fisher Asset Management, LLC 0.05% of their portfolio | 748.8k $169.9m | Added +40.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.07% of their portfolio | 717.1k $162.7m | Added +17.3k |
| CITADEL ADVISORS LLC 0.09% of their portfolio | 706.4k $160.3m | Reduced -102.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 683.7k $155.2m | Reduced -2.3k |
| FLOSSBACH VON STORCH SE 0.66% of their portfolio | 646.9k $146.8m | Reduced -93.5k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.16% of their portfolio | 604.7k $137.2m | Added +47.4k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.38% of their portfolio | 513.6k $116.6m | Added +87.5k |
| TWO SIGMA INVESTMENTS, LP 0.08% of their portfolio | 491.2k $111.5m | Reduced -6.5k |
| FIRST TRUST ADVISORS LP 0.07% of their portfolio | 491.1k $111.5m | Reduced -181.7k |
| Freestone Grove Partners LP 0.67% of their portfolio | 451.7k $102.5m | Added +234.5k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 450.9k $102.6m | Reduced -12.7k |
| Legal & General Group Plc 0.02% of their portfolio | 444.9k $101.0m | Reduced -26.1k |
| SNYDER CAPITAL MANAGEMENT L P 1.73% of their portfolio | 441.0k $100.1m | Reduced -12.3k |
| DEUTSCHE BANK AG\ 0.03% of their portfolio | 426.9k $96.9m | Reduced -5.0k |
| Thrivent Financial for Lutherans 0.16% of their portfolio | 418.3k $94.9m | Added +123.0k |
| VANGUARD FIDUCIARY TRUST CO 0.02% of their portfolio | 415.5k $94.3m | Reduced -5.8k |
| JANE STREET GROUP, LLC 0.06% of their portfolio | 411.8k $93.5m | Reduced -753.7k |
| HSBC HOLDINGS PLC 0.04% of their portfolio | 403.1k $91.5m | Added +105.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.13% of their portfolio | 393.9k $89.4m | Added +327.1k |
| Boston Trust Walden Corp 0.67% of their portfolio | 390.2k $88.6m | Reduced -62.5k |
| Alecta Tjanstepension Omsesidigt 0.36% of their portfolio | 379.5k $86.1m | Reduced -199.5k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 372.7k $84.6m | Added +57.2k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 355.1k $80.6m | Reduced -739.0k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 350.0k $79.4m | Reduced -56.5k |
| Robeco Schweiz AG 1.17% of their portfolio | 322.0k $73.1m | Reduced -57.0k |
| Findlay Park Partners LLP 0.98% of their portfolio | 321.3k $72.9m | Reduced -10.7k |
| FMR LLC 0.00% of their portfolio | 320.1k $72.6m | Added +130.6k |
| DEPRINCE RACE & ZOLLO INC 1.15% of their portfolio | 303.1k $68.8m | Reduced -46.4k |
| Schonfeld Strategic Advisors LLC 0.35% of their portfolio | 291.6k $66.2m | Reduced -123.9k |
| BARCLAYS PLC 0.02% of their portfolio | 280.9k $63.8m | Reduced -64.5k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.25% of their portfolio | 269.1k $61.1m | Added +97.3k |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 257.3k $58.2m | Added +775 |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio | 255.5k $57.7m | Reduced -21.0k |
| Qube Research & Technologies Ltd 0.06% of their portfolio | 252.5k $57.3m | Reduced -2.4k |
| WEITZ INVESTMENT MANAGEMENT, INC. 3.97% of their portfolio | 252.4k $57.3m | Reduced -11.9k |
| Evelyn Partners Group Ltd 0.97% of their portfolio | 250.9k $56.9m | First filing |
| JOHNSON INVESTMENT COUNSEL INC 0.39% of their portfolio | 236.5k $53.7m | Reduced -7.2k |
| Nuveen, LLC 0.01% of their portfolio | 218.2k $49.5m | Reduced -2.8k |
| Corient Private Wealth LP 0.07% of their portfolio | 215.1k $48.8m | Reduced -20.2k |
| Quantinno Capital Management LP 0.06% of their portfolio | 214.1k $48.6m | Added +99.6k |
| Allianz Asset Management GmbH 0.04% of their portfolio | 209.8k $39.8m | Unchanged |
| Swiss National Bank 0.02% of their portfolio | 209.4k $47.5m | Reduced -10.2k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 207.4k $47.1m | Added +39.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.06% of their portfolio | 185.3k $42.1m | Added +100.8k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.08% of their portfolio | 182.5k $41.4m | Added +53.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 180.9k $41.1m | Added +48.2k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.02% of their portfolio | 180.9k $41.1m | Added +14.2k |
| HRT FINANCIAL LP 0.10% of their portfolio | 179.0k $40.6m | Added +81.2k |
| Ensign Peak Advisors, Inc 0.07% of their portfolio | 178.7k $40.6m | Reduced -21.9k |
| Champlain Investment Partners, LLC 1.04% of their portfolio | 178.5k $40.5m | Reduced -461.7k |
| GABELLI FUNDS LLC 0.26% of their portfolio | 176.1k $40.0m | Unchanged |
| FIL Ltd 0.03% of their portfolio | 169.6k $38.5m | Reduced -583 |
| ASR Vermogensbeheer N.V. 0.39% of their portfolio | 166.1k $37.7m | Reduced -5.7k |
| RHUMBLINE ADVISERS 0.03% of their portfolio | 163.6k $37.1m | Added +538 |
| CIBC Bancorp USA Inc. 0.05% of their portfolio | 161.8k $36.7m | Reduced -9.1k |
| Vanguard Global Advisers, LLC 0.02% of their portfolio | 159.2k $36.1m | Reduced -4.2k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 159.0k $36.1m | Reduced -950 |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 157.8k $35.8m | Added +69.4k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 157.2k $35.7m | Reduced -17.4k |
| GAMCO INVESTORS, INC. ET AL 0.32% of their portfolio | 155.7k $35.3m | Reduced -1.0k |
| BROWN ADVISORY INC 0.05% of their portfolio | 155.7k $35.3m | Reduced -15.7k |
| California Public Employees Retirement System 0.02% of their portfolio | 152.6k $34.6m | Reduced -2.0k |
| MIROVA 1.27% of their portfolio | 151.9k $34.5m | Reduced -8.8k |
| Longaeva Partners L.P. 0.99% of their portfolio | 150.7k $34.2m | Added +77.8k |
| Erste Asset Management GmbH 0.26% of their portfolio | 150.1k $33.9m | Added +150.1k |
| SG Americas Securities, LLC 0.02% of their portfolio | 149.5k $33.9m | Added +115.6k |
| Jupiter Topco LLC 0.01% of their portfolio | 140.5k $31.9m | First filing |
| Russell Investments Group, Ltd. 0.03% of their portfolio | 136.3k $30.9m | Reduced -17.1k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.02% of their portfolio | 133.0k $30.2m | Added +10.5k |
| NICHOLAS COMPANY, INC. 0.55% of their portfolio | 132.7k $30.1m | Added +70 |
| Caisse de depot et placement du Quebec 0.04% of their portfolio | 128.3k $29.1m | Added +127.2k |
| CONGRUENCE CAPITAL, LLC 7.19% of their portfolio | 121.3k $27.5m | Added +44.0k |
| SEGALL BRYANT & HAMILL, LLC 0.33% of their portfolio | 120.9k $27.4m | New |
| MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 4.08% of their portfolio | 114.2k $25.9m | Reduced -3.8k |
| DekaBank Deutsche Girozentrale 0.04% of their portfolio | 113.0k $21.3m | Unchanged |
| HARVEY INVESTMENT CO LLC 2.72% of their portfolio | 110.0k $25.0m | Reduced -2.2k |