IDEX (IEX) Superinvestor holders
26 of the superinvestors we track hold IDEX (IEX) in their latest 13F filings, $1.6B in total.
Summary
The largest holder is PRIMECAP Management (PRIMECAP Management Co), with $749M, 0.4% of the portfolio.
In their latest quarter: 1 opened a new position, 11 added, 12 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| PRIMECAP Management PRIMECAP Management Co |
Trimmed | 3,300,072 | $749M | 0.4% | Q2 2026 |
| Steve Cohen Point72 Asset Management |
Added | 905,936 | $206M | 0.3% | Q2 2026 |
| Arrowstreet Capital | Added | 717,081 | $163M | 0.1% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Trimmed | 491,153 | $111M | 0.1% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | 257,285 | $58M | 0.0% | Q2 2026 |
| Wallace Weitz Weitz Investment Management |
Trimmed | 252,400 | $57M | 4.0% | Q2 2026 |
| Sean Stannard-Stockton Ensemble Capital Management |
Trimmed | 215,157 | $46M | 3.9% | Q3 2024 |
| Jim Simons Renaissance Technologies |
Added | 185,325 | $42M | 0.1% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Trimmed | 178,720 | $41M | 0.1% | Q2 2026 |
| Mario Gabelli GAMCO Investors |
Trimmed | 155,722 | $35M | 0.3% | Q2 2026 |
| Tony Yoseloff Davidson Kempner Capital Management |
Added | 100,000 | $23M | 0.6% | Q2 2026 |
| Mark Donovan Boston Partners |
Added | 61,290 | $14M | 0.0% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | 61,025 | $14M | 0.0% | Q2 2026 |
| Ken Tropin Graham Capital Management |
Trimmed | 59,798 | $14M | 0.5% | Q2 2026 |
| Ron Baron Baron Capital (BAMCO) |
Trimmed | 46,717 | $11M | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
Added | 29,438 | $7M | 0.0% | Q3 2026 |
| Will Nasgovitz Heartland Advisors |
Added | 26,726 | $6M | 0.3% | Q2 2026 |
| Paul Marshall Marshall Wace |
Trimmed | 13,145 | $3M | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
Added | 12,460 | $3M | 0.0% | Q2 2026 |
| Man Group Man Group plc |
Trimmed | 6,716 | $2M | 0.0% | Q2 2026 |
| Mairs & Power Mairs & Power Inc |
Held | 4,000 | $907,800 | 0.0% | Q2 2026 |
| First Manhattan First Manhattan Co |
Held | 3,778 | $857,417 | 0.0% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 3,269 | $741,900 | 0.0% | Q2 2026 |
| Alec Litowitz Magnetar Capital |
New position | 2,423 | $549,900 | 0.0% | Q2 2026 |
| Ken Fisher Fisher Investments |
Trimmed | 1,553 | $354,164 | 0.0% | Q3 2026 |
| Aziz Hamzaogullari Loomis Sayles & Co |
Added | 217 | $49,248 | 0.0% | Q2 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 25 |
| Q1 2026 | 27 |
| Q4 2025 | 23 |
| Q3 2025 | 25 |
| Q2 2025 | 25 |
| Q1 2025 | 20 |
| Q4 2024 | 24 |
| Q3 2024 | 24 |
Questions about IDEX
Which superinvestors own IDEX?
26 of the superinvestors we track hold IDEX (IEX) in their latest 13F filings, $1.6B in total. PRIMECAP Management, Steve Cohen, Arrowstreet Capital, Two Sigma, Cliff Asness, Wallace Weitz.
Who is the largest superinvestor holder of IEX?
The largest holder is PRIMECAP Management (PRIMECAP Management Co), with $749M, 0.4% of the portfolio.
From IDEX's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.