아이덱스 주식회사
MX ˙ BMV ˙ US45167R1041
SecurityMX:IEX / IDEX Corporation
InstitutionOstrum Asset Management
Latest Disclosed Ownership1,658 shares
Latest Disclosed Value $ 314,274
Ostrum Asset Management reports 1.47% increase in ownership of IEX / IDEX Corporation

On May 14, 2026 - Ostrum Asset Management filed a 13F-HR form disclosing ownership of 1,658 shares of IDEX Corporation (MX:IEX) valued at $314,274 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,634 shares of IDEX Corporation. This represents a change in shares of 1.47% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F IDEX Common Stock 45167R104 1,658 24 1.47 314 8.28 0.0176
2026-02-13 2025-12-31 13F IDEX Common Stock 45167R104 1,634 -542 -24.91 291 -18.08 0.0139
2025-11-14 2025-09-30 13F IDEX Common Stock 45167R104 2,176 -67 -2.99 354 -9.92 0.0159
2025-08-13 2025-06-30 13F IDEX Common Stock 45167R104 2,243 -570 -20.26 394 -22.79 0.0185
2025-05-14 2025-03-31 13F IDEX Common Stock 45167R104 2,813 -692 -19.74 509 -30.56 0.0268
2025-02-13 2024-12-31 13F IDEX Common Stock 45167R104 3,505 627 21.79 734 18.80 0.0635
2024-11-13 2024-09-30 13F IDEX Common Stock 45167R104 2,878 -419 -12.71 617 -6.94 0.0511
2024-08-13 2024-06-30 13F IDEX Common Stock 45167R104 3,297 100 3.13 663 -15.00 0.0579
2024-05-13 2024-03-31 13F IDEX Common Stock 45167R104 3,197 323 11.24 780 25.20 0.0617
2024-02-13 2023-12-31 13F IDEX Common Stock 45167R104 2,874 -326 -10.19 624 -6.32 0.0542
2023-11-14 2023-09-30 13F IDEX Common Stock 45167R104 3,200 229 7.71 666 4.07 0.0616
2023-08-11 2023-06-30 13F IDEX Common Stock 45167R104 2,971 2 0.07 640 -6.72 0.0536
2023-05-12 2023-03-31 13F IDEX Common Stock 45167R104 2,969 2,969 686 0.0598
2019-11-13 2019-09-30 13F IDEX Common Stock 45167R104 0 -12,400 -100.00 0 -100.00
2019-08-13 2019-06-30 13F IDEX Common Stock 45167R104 12,400 3,850 45.03 2,135 64.61 0.5916
2019-05-15 2019-03-31 13F IDEX Common Stock 45167R104 8,550 1,150 15.54 1,297 38.87 0.4250
2019-02-14 2018-12-31 13F IDEX Common Stock 45167R104 7,400 7,400 934 0.3666
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.