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 ($14.1m this quarter). Holder counts are more reliable. Shares outstanding: 75.3m as of 2025-07-25, 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 ≈ $175.56. Options: 5 managers hold calls ($3.6m notional), 6 hold puts ($2.8m).
Trends to Q2 2025
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 |
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 2023 | 252 | 312 |
| Q4 2023 | 256 | 316 |
| Q1 2024 | 268 | 272 |
| Q2 2024 | 311 | 258 |
| Q3 2024 | 272 | 312 |
| Q4 2024 | 258 | 276 |
| Q1 2025 | 293 | 292 |
| Q2 2025 | 332 | 283 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $6.5m | $7.1m | 1.09 |
| Q4 2024 | $7.3m | $6.0m | 0.82 |
| Q1 2025 | $3.7m | $2.0m | 0.55 |
| Q2 2025 | $3.6m | $2.8m | 0.79 |
Biggest buyers
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.2m |
| VAN ECK ASSOCIATES CORP | Added | +793.8k |
| Qube Research & Technologies Ltd | Added | +383.2k |
| FLOSSBACH VON STORCH SE | Added | +365.5k |
| UBS Group AG | Added | +326.1k |
| Squarepoint Ops LLC | Added | +228.5k |
| FIL Ltd | Added | +220.7k |
| PRIMECAP MANAGEMENT CO/CA/ | Added | +219.5k |
| JPMORGAN CHASE & CO | Added | +174.6k |
| MILLENNIUM MANAGEMENT LLC | Added | +122.6k |
Biggest sellers
| Pictet Asset Management Holding SA | Reduced | -814.4k |
| CCLA Investment Management | Sold out | -385.6k |
| MARSHALL WACE, LLP | Reduced | -372.6k |
| T. Rowe Price Investment Management, Inc. | Reduced | -364.0k |
| AXA S.A. | Reduced | -197.7k |
| Interval Partners, LP | Sold out | -179.8k |
| BlackRock, Inc. | Reduced | -120.4k |
| KING LUTHER CAPITAL MANAGEMENT CORP | Reduced | -113.8k |
| Alecta Tjanstepension Omsesidigt | Reduced | -110.1k |
| TWO SIGMA ADVISERS, LP | Reduced | -97.7k |
Biggest calls
| UBS Group AG | Unchanged | $2.2m12.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1m6.5k shares |
| CITADEL ADVISORS LLC | Reduced | $298.5k1.7k shares |
| SIMPLEX TRADING, LLC | Unchanged | $17.0k100 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| Walleye Trading LLC | Added | $1.4m7.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.0m5.7k shares |
| CITADEL ADVISORS LLC | Added | $316.0k1.8k shares |
| GROUP ONE TRADING LLC | New | $87.8k500 shares |
| Walleye Capital LLC | New | $87.8k500 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 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 in Q2 2025
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 |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $45.2k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-06-05 | Mahendra Akhil Interim CFO | Sold | $45.2k250 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 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.03% of their portfolio | 9.2m $1.6bn | Reduced -20.5k |
| WELLINGTON MANAGEMENT GROUP LLP 0.20% of their portfolio | 6.3m $1.1bn | Added +1.2m |
| BlackRock, Inc. 0.02% of their portfolio | 5.8m $1.0bn | Reduced -120.4k |
| MORGAN STANLEY 0.04% of their portfolio | 3.1m $550.1m | Reduced -27.8k |
| STATE STREET CORP 0.02% of their portfolio | 3.1m $544.2m | Added +16.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.04% of their portfolio | 2.0m $353.7m | Added +51.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 2.0m $349.9m | Added +29.4k |
| Impax Asset Management Group plc 1.98% of their portfolio | 2.0m $345.3m | Reduced -40.3k |
| VAN ECK ASSOCIATES CORP 0.35% of their portfolio | 1.8m $310.2m | Added +793.8k |
| Invesco Ltd. 0.05% of their portfolio | 1.6m $273.8m | Added +13.9k |
| T. Rowe Price Investment Management, Inc. 0.17% of their portfolio | 1.5m $261.5m | Reduced -364.0k |
| BARCLAYS PLC 0.09% of their portfolio | 1.3m $234.1m | Added +42.4k |
| Amundi 0.08% of their portfolio | 1.3m $231.8m | Added +29.1k |
| Champlain Investment Partners, LLC 1.23% of their portfolio | 1.0m $176.7m | Reduced -38.4k |
| FIRST TRUST ADVISORS LP 0.13% of their portfolio | 943.9k $165.7m | Added +65.2k |
| NORGES BANK 0.02% of their portfolio | 888.6k $156.0m | Reduced -93.1k |
| Fenimore Asset Management Inc 3.06% of their portfolio | 872.7k $153.2m | Added +16.7k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.03% of their portfolio | 850.1k $149.3m | Added +80.8k |
| NORDEA INVESTMENT MANAGEMENT AB 0.13% of their portfolio | 805.2k $141.1m | Reduced -49.8k |
| NORTHERN TRUST CORP 0.02% of their portfolio | 772.7k $135.7m | Reduced -5.6k |
| Fisher Asset Management, LLC 0.05% of their portfolio | 707.2k $124.2m | Added +47.9k |
| UBS Group AG 0.03% of their portfolio | 697.9k $122.5m | Added +326.1k |
| Alecta Tjanstepension Omsesidigt 0.57% of their portfolio | 689.9k $121.1m | Reduced -110.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.02% of their portfolio | 661.1k $116.1m | Added +12.6k |
| Pictet Asset Management Holding SA 0.12% of their portfolio | 659.8k $115.8m | Reduced -814.4k |
| Bank of New York Mellon Corp 0.02% of their portfolio | 654.1k $114.8m | Added +42.7k |
| Qube Research & Technologies Ltd 0.16% of their portfolio | 652.7k $114.6m | Added +383.2k |
| FLOSSBACH VON STORCH SE 0.46% of their portfolio | 640.8k $112.5m | Added +365.5k |
| MILLENNIUM MANAGEMENT LLC 0.10% of their portfolio | 609.9k $107.1m | Added +122.6k |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.46% of their portfolio | 607.0k $106.6m | Reduced -113.8k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 602.6k $105.8m | Reduced -82.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.17% of their portfolio | 503.4k $88.4m | Reduced -6.9k |
| SNYDER CAPITAL MANAGEMENT L P 1.86% of their portfolio | 497.9k $87.4m | Added +10.5k |
| PRIMECAP MANAGEMENT CO/CA/ 0.07% of their portfolio | 493.5k $86.6m | Added +219.5k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 489.3k $85.9m | Added +48.5k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 482.8k $84.8m | Added +174.6k |
| Legal & General Group Plc 0.02% of their portfolio | 477.2k $83.8m | Reduced -51.4k |
| Findlay Park Partners LLP 0.82% of their portfolio | 452.9k $79.5m | Reduced -16.4k |
| Allianz Asset Management GmbH 0.10% of their portfolio | 445.0k $78.1m | Added +16.0k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.32% of their portfolio | 438.7k $77.0m | Reduced -6.5k |
| WEITZ INVESTMENT MANAGEMENT, INC. 3.84% of their portfolio | 406.2k $71.3m | Added +5.0k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 401.7k $70.5m | Reduced -8.2k |
| Boston Trust Walden Corp 0.48% of their portfolio | 381.5k $67.0m | Added +109.0k |
| DEUTSCHE BANK AG\ 0.02% of their portfolio | 380.6k $66.8m | Reduced -89.9k |
| FIL Ltd 0.06% of their portfolio | 380.1k $66.7m | Added +220.7k |
| GW&K Investment Management, LLC 0.59% of their portfolio | 376.9k $66.2m | Added +9.9k |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO 0.05% of their portfolio | 335.9k $59.0m | Unchanged |
| Weiss Asset Management LP 0.93% of their portfolio | 334.5k $58.7m | Added +104.2k |
| Clearbridge Investments, LLC 0.05% of their portfolio | 328.4k $57.6m | Reduced -6.8k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.05% of their portfolio | 315.2k $55.3m | Added +44.6k |
| JOHNSON INVESTMENT COUNSEL INC 0.49% of their portfolio | 310.7k $54.6m | Added +20.5k |
| Ensign Peak Advisors, Inc 0.09% of their portfolio | 302.9k $53.2m | Added +1.1k |
| Premier Fund Managers Ltd 1.94% of their portfolio | 301.3k $53.1m | Added +1.2k |
| DEPRINCE RACE & ZOLLO INC 1.08% of their portfolio | 297.0k $52.2m | Added +51.4k |
| Squarepoint Ops LLC 0.10% of their portfolio | 264.5k $46.4m | Added +228.5k |
| HSBC HOLDINGS PLC 0.03% of their portfolio | 250.2k $43.9m | Reduced -36.1k |
| MOUNTAIN PACIFIC INVESTMENT ADVISERS LLC 3.07% of their portfolio | 241.3k $42.4m | Reduced -792 |
| Robeco Schweiz AG 0.96% of their portfolio | 237.3k $41.7m | Reduced -40.4k |
| Maren Capital LLC 2.50% of their portfolio | 236.0k $41.4m | Reduced -10.8k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.15% of their portfolio | 231.9k $40.7m | Added +4.1k |
| Sone Capital Management, LLC 3.70% of their portfolio | 228.1k $40.0m | Added +62.9k |
| Swiss National Bank 0.02% of their portfolio | 228.0k $40.0m | Added +14.4k |
| Corient Private Wealth LP 0.05% of their portfolio | 221.8k $38.9m | Reduced -8.3k |
| BAMCO INC /NY/ 0.11% of their portfolio | 221.0k $38.8m | Reduced -2.0k |
| BROWN ADVISORY INC 0.05% of their portfolio | 208.1k $36.5m | Reduced -28.6k |
| GABELLI FUNDS LLC 0.24% of their portfolio | 193.4k $34.0m | Reduced -3.5k |
| California Public Employees Retirement System 0.02% of their portfolio | 184.4k $32.4m | Reduced -30.6k |
| Port Capital LLC 1.35% of their portfolio | 181.4k $31.9m | Added +1.5k |
| RHUMBLINE ADVISERS 0.03% of their portfolio | 178.0k $31.2m | Added +5.9k |
| CIBC Private Wealth Group LLC 0.06% of their portfolio | 177.0k $31.1m | Reduced -2.5k |
| Evelyn Partners Investment Management LLP 0.95% of their portfolio | 177.0k $31.1m | Reduced -11.4k |
| GAMCO INVESTORS, INC. ET AL 0.30% of their portfolio | 175.1k $30.8m | Reduced -742 |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 173.3k $30.4m | Added +566 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.07% of their portfolio | 171.5k $30.1m | Added +39.6k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 165.4k $29.0m | Added +62.6k |
| Nuveen, LLC 0.01% of their portfolio | 163.9k $28.8m | Added +10.3k |
| TWO SIGMA ADVISERS, LP 0.06% of their portfolio | 163.7k $28.7m | Reduced -97.7k |
| Rockefeller Capital Management L.P. 0.03% of their portfolio | 157.3k $27.6m | Added +36.4k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.05% of their portfolio | 153.5k $27.0m | Added +28.8k |
| AE Wealth Management LLC 0.20% of their portfolio | 152.4k $26.8m | Added +5.7k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 143.4k $25.2m | Reduced -34.8k |
| COMERICA BANK 0.10% of their portfolio | 142.0k $24.9m | Added +6.1k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.02% of their portfolio | 141.8k $24.9m | Added +9.0k |
| ASR Vermogensbeheer N.V. 0.32% of their portfolio | 141.4k $24.8m | Added +3.5k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 137.9k $24.2m | Reduced -37.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.03% of their portfolio | 136.2k $23.9m | Added +7.6k |
| DF DENT & CO INC 0.30% of their portfolio | 132.8k $23.3m | Added +3.1k |
| TWINBEECH CAPITAL LP 0.53% of their portfolio | 132.0k $23.2m | Added +84.4k |
| TD Asset Management Inc 0.02% of their portfolio | 130.4k $22.9m | Reduced -33.3k |
| Northwest & Ethical Investments L.P. 0.49% of their portfolio | 113.5k $19.9m | Reduced -2.2k |
| CANADA LIFE ASSURANCE Co 0.03% of their portfolio | 113.3k $19.9m | Reduced -1.3k |
| DekaBank Deutsche Girozentrale 0.04% of their portfolio | 113.0k $19.9m | Added +9.8k |
| SOROS FUND MANAGEMENT LLC 0.34% of their portfolio | 111.4k $19.6m | Added +2.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 111.2k $19.5m | Added +85.9k |
| GENEVA CAPITAL MANAGEMENT LLC 0.31% of their portfolio | 104.5k $18.4m | Added +3.8k |
| NICHOLAS COMPANY, INC. 0.30% of their portfolio | 103.6k $18.2m | Added +16.8k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.04% of their portfolio | 103.4k $18.1m | Added +464 |
| Curi Capital, LLC 0.34% of their portfolio | 102.8k $18.0m | Added +23.5k |
| EVENTIDE ASSET MANAGEMENT, LLC 0.31% of their portfolio | 101.8k $17.9m | Added +2.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 101.0k $17.7m | Added +13.3k |