Idex (IEX) Held by Superinvestors
IDEX CORP (IEX) is currently held by 3 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $43.76M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Renaissance Technologies LLC is currently the largest disclosed institutional shareholder of IEX tracked by InsiderSet, reporting ownership valued at approximately $42.06M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $42.45M, representing an estimated gain of +0.93% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed IEX value among the investors covered in this analysis. Major shareholders include Renaissance Technologies LLC, Mairs & Power Growth Fund, Sequoia Financial Advisors, and several other long-term asset managers with concentrated positions in IDEX CORP (IEX).
This page ranks the largest institutional IEX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | Jim Simons | 0.06% | 185,325 | $42,059,509 | $42,448,691 | +$389,182 | +0.93% |
| Mairs & Power Growth Fund | Andrew R. Adams | 0.01% | 4,000 | $907,800 | $916,200 | +$8,400 | +0.93% |
| Sequoia Financial Advisors | 0.00% | 3,495 | $793,215 | $800,530 | +$7,315 | +0.92% |
Frequently asked questions about IEX
Who are the largest superinvestors holding IEX?
The largest superinvestors holding IEX in the latest SEC Form 13F filings include Renaissance Technologies LLC, Mairs & Power Growth Fund, and Sequoia Financial Advisors. InsiderSet ranks these superinvestors by their latest reported IEX position.
What does the IEX superinvestors page include?
This page tracks IEX positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. IDEX CORP (IEX) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold IEX?
InsiderSet currently tracks 3 superinvestors reporting IEX holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own IEX.
How much IEX stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $43.76M in IEX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were IEX superinvestor holdings last updated?
The latest IEX superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor IEX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its IEX position after the reporting date.
Are superinvestors buying or selling IEX?
Buying and selling can be analyzed by comparing IEX positions across consecutive 13F reporting periods. InsiderSet's IEX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View IEX ownership changes.
How have superinvestor IEX holdings changed over time?
InsiderSet tracks IEX holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.