Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of IDEX CORP /DE/
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000832101.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
11 May 2026
- Public ticker
- IEX on NYSE
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
11 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000832101
- Issuer location
- Northbrook, IL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of IDEX CORP /DE/ (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
11 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.1%
WELLINGTON MANAGEMENT GROUP LLP
2.3%
Eric D. Ashleman
0.09%
Katrina L. Helmkamp
0.02%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$1,059,255,631
5,588,265 shares
|
$0 | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.1%
|
$716,090,330
3,777,844 shares
|
$0 | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
13D/G
Company
|
2.3%
from 13D/G
|
$329,538,552
1,738,531 shares
|
— | 31 Mar 2026 |
| Eric D. Ashleman |
3/4/5
CEO and President, Director
|
0.09%
|
$14,385,562
66,658 shares
|
-$3,311,195 | 11 May 2026 |
| Katrina L. Helmkamp |
3/4/5
Director
|
0.02%
|
$2,698,244
14,235 shares
|
+$399,026 | 06 May 2026 |
| Mark A. Buthman |
3/4/5
Director
|
0.01%
|
$1,900,238
10,025 shares
|
— | 06 May 2026 |
| Mark A. Beck |
3/4/5
Director
|
0.01%
|
$1,469,960
7,755 shares
|
— | 06 May 2026 |
| Carl R. Christenson |
3/4/5
Director
|
0.01%
|
$1,356,419
7,156 shares
|
+$101,647 | 06 May 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$2,810,522.
Buys
$500,673
Insiders: 2
Sells
$3,311,195
Insiders: 1
Net
-$2,810,522
Shares: -12,285
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,100
Shares: 15,385
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 15,385 | $0 | $3,311,195 | -$3,311,195 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 600 | 0 | $101,647 | $0 | +$101,647 |
| 9-12 | 2,500 | 0 | $399,026 | $0 | +$399,026 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to IDEX CORP /DE/. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
Eric D. Ashleman
Net 12M change
-$2,810,522
Latest report
11 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Eric D. Ashleman | CEO and President, Director | $14,385,562 | -$3,311,195 | -19% | Filing P/S | 11 May 2026 |
| David C. Parry | Director | $4,954,755 | Mixed | 07 May 2024 | ||
| William M. Cook | Director | $4,719,592 | Mixed | 06 May 2022 | ||
| Sean M. Gillen | SVP, Chief Financial Officer | $3,795,678 | Mixed | 19 Feb 2026 | ||
| William K. Grogan | Chief Financial Officer | $3,366,971 | Mixed | 23 Feb 2023 | ||
| Livingston Satterthwaite | Director | $3,347,127 | Mixed | 07 May 2024 | ||
| Katrina L. Helmkamp | Director | $2,698,244 | +$399,026 | +17% | Median | 06 May 2026 |
| Ernest J. Mrozek | Director | $2,195,978 | Mixed | 12 May 2021 | ||
| Daniel J. Salliotte | SVP, Corporate Development | $2,181,104 | Mixed | 16 Feb 2022 | ||
| Denise R. Singleton | SVP, General Counsel &Corp Sec | $1,996,344 | Mixed | 16 Feb 2022 | ||
| Mark A. Buthman | Director | $1,900,238 | Median | 06 May 2026 | ||
| Mark A. Beck | Director | $1,469,960 | Median | 06 May 2026 | ||
| Abhishek Khandelwal | SVP, Chief Financial Officer | $1,362,381 | Mixed | 20 Feb 2025 | ||
| Carl R. Christenson | Director | $1,356,419 | +$101,647 | +8.1% | Median | 06 May 2026 |
| Tara M. Tereso | Group Executive, HST | $1,210,853 | Mixed | 19 Feb 2026 | ||
| Lakecia N. Gunter | Director | $933,533 | Median | 06 May 2026 | ||
| Akhil Mahendra | Interim CFO | $910,781 | Filing P/S | 05 Jun 2025 | ||
| Lisa M. Anderson | SVP, GC, CAO & Corp Sec | $864,188 | Mixed | 19 Feb 2026 | ||
| Allison S. Lausas | VP, Chief Accounting Officer | $820,423 | Mixed | 19 Feb 2026 | ||
| Stanfield Paris Watts | Director | $795,162 | Median | 06 May 2026 |
Recent insider transactions for IDEX CORP /DE/
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Eric D. Ashleman | IEX | COMMON STOCK | Sale | -18.8% | $3,311,195 | $215.22 | -15,385 | 66,658 | 11 May 2026 | Direct |
| Eric D. Ashleman | IEX | COMMON STOCK | Options Exercise | 23.1% | 15,385 | 82,043 | 11 May 2026 | Direct | ||
| Eric D. Ashleman | IEX | OPTIONS (RIGHT TO BUY) | Options Exercise | -100% | -15,385 | 0 | 11 May 2026 | Direct | ||
| Stanfield Paris Watts | IEX | COMMON STOCK | Award | 23.8% | 805 | 4,195 | 06 May 2026 | Direct | ||
| Alejandro Quiroz | IEX | COMMON STOCK | Award | 25% | 805 | 4,030 | 06 May 2026 | Direct | ||
| Katrina L. Helmkamp | IEX | COMMON STOCK | Award | 7.84% | 1,035 | 14,235 | 06 May 2026 | Direct | ||
| Lakecia N. Gunter | IEX | COMMON STOCK | Award | 19.5% | 805 | 4,925 | 06 May 2026 | Direct | ||
| Matthijs Glastra | IEX | COMMON STOCK | Award | 74.9% | 805 | 1,880 | 06 May 2026 | Direct | ||
| Stephanie Disher | IEX | COMMON STOCK | Award | 74.9% | 805 | 1,880 | 06 May 2026 | Direct | ||
| Carl R. Christenson | IEX | COMMON STOCK | Award | 12.7% | 805 | 7,156 | 06 May 2026 | Direct | ||
| Mark A. Buthman | IEX | COMMON STOCK | Award | 8.73% | 805 | 10,025 | 06 May 2026 | Direct | ||
| Mark A. Beck | IEX | COMMON STOCK | Award | 11.6% | 805 | 7,755 | 06 May 2026 | Direct | ||
| Tara M. Tereso | IEX | COMMON STOCK | Tax liability | -2.57% | -154 | 5,836 | 23 Feb 2026 | Direct | ||
| Eric D. Ashleman | IEX | COMMON STOCK | Award | 15.7% | 9,040 | 66,658 | 22 Feb 2026 | Direct | ||
| Eric D. Ashleman | IEX | OPTIONS (RIGHT TO BUY) | Award | 38,165 | 38,165 | 22 Feb 2026 | Direct | |||
| Allison S. Lausas | IEX | COMMON STOCK | Tax liability | -4.34% | -179 | 3,947 | 20 Feb 2026 | Direct | ||
| Tara M. Tereso | IEX | COMMON STOCK | Award | 21.4% | 1,055 | 5,990 | 19 Feb 2026 | Direct | ||
| Tara M. Tereso | IEX | OPTIONS (RIGHT TO BUY) | Award | 4,445 | 4,445 | 19 Feb 2026 | Direct | |||
| William L. Simmons | IEX | COMMON STOCK | Award | 57.4% | 1,055 | 2,892 | 19 Feb 2026 | Direct | ||
| William L. Simmons | IEX | OPTIONS (RIGHT TO BUY) | Award | 4,445 | 4,445 | 19 Feb 2026 | Direct | |||
| Allison S. Lausas | IEX | COMMON STOCK | Award | 7.14% | 275 | 4,126 | 19 Feb 2026 | Direct | ||
| Allison S. Lausas | IEX | OPTIONS (RIGHT TO BUY) | Award | 1,145 | 1,145 | 19 Feb 2026 | Direct | |||
| Sean M. Gillen | IEX | COMMON STOCK | Award | 14.5% | 2,410 | 19,005 | 19 Feb 2026 | Direct | ||
| Sean M. Gillen | IEX | OPTIONS (RIGHT TO BUY) | Award | 10,160 | 10,160 | 19 Feb 2026 | Direct | |||
| Lisa M. Anderson | IEX | COMMON STOCK | Award | 38.6% | 1,205 | 4,327 | 19 Feb 2026 | Direct | ||
| Lisa M. Anderson | IEX | OPTIONS (RIGHT TO BUY) | Award | 5,080 | 5,080 | 19 Feb 2026 | Direct | |||
| Sean M. Gillen | IEX | COMMON STOCK | Award | 16,595 | 16,595 | 05 Jan 2026 | Direct | |||
| Carl R. Christenson | IEX | COMMON STOCK | Purchase | 10.4% | $101,647 | $169.41 | 600 | 6,351 | 05 Nov 2025 | Direct |
| Katrina L. Helmkamp | IEX | COMMON STOCK | Purchase | 23.4% | $399,026 | $159.61 | 2,500 | 13,200 | 07 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.