Interparfums, Inc.
US ˙ NasdaqGS ˙ US4583341098

SecurityIPAR / Interparfums, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership89,026 shares
Latest Disclosed Value $ 8,087,942
Janus Henderson Group Plc reports 877.13% increase in ownership of IPAR / Interparfums, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 89,026 shares of Interparfums, Inc. (US:IPAR) valued at $8,087,122 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 9,111 shares of Interparfums, Inc.. This represents a change in shares of 877.13% during the quarter. The current value of the position is $7,861,886 USD.

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)
2026-05-18 2026-03-31 13F/A-1 INTERPARFUMS COM 458334109 89,026 79,915 877.13 8,088 946.18 0.0014
2026-05-15 2026-03-31 13F INTERPARFUMS COM 458334109 89,026 79,915 877.13 8,088 946.18 0.0015
2026-02-17 2025-12-31 13F INTERPARFUMS COM 458334109 9,111 0 0.00 773 -13.73 0.0003
2025-11-14 2025-09-30 13F INTERPARFUMS COM 458334109 9,111 0 0.00 897 -25.08 0.0004
2025-08-14 2025-06-30 13F INTERPARFUMS COM 458334109 9,111 -11,739 -56.30 1,196 -51.06 0.0006
2025-05-15 2025-03-31 13F INTERPARFUMS COM 458334109 20,850 -12,849 -38.13 2,445 -44.86 0.0013
2025-02-14 2024-12-31 13F INTERPARFUMS COM 458334109 33,699 -123 -0.36 4,433 1.21 0.0023
2024-11-14 2024-09-30 13F INTER PARFUMS COM 458334109 33,822 4,411 15.00 4,380 28.38 0.0022
2024-08-14 2024-06-30 13F INTER PARFUMS COM 458334109 29,411 9,458 47.40 3,411 21.65 0.0018
2024-05-15 2024-03-31 13F INTER PARFUMS COM 458334109 19,953 10,870 119.67 2,804 114.21 0.0015
2024-02-14 2023-12-31 13F INTER PARFUMS COM 458334109 9,083 -13 -0.14 1,309 7.30 0.0008
2023-11-14 2023-09-30 13F INTER PARFUMS COM 458334109 9,096 1 0.01 1,221 -0.73 0.0008
2023-08-14 2023-06-30 13F INTER PARFUMS COM 458334109 9,095 -10 -0.11 1,230 -5.02 0.0008
2023-05-15 2023-03-31 13F INTER PARFUMS COM 458334109 9,105 5,577 158.08 1,295 280.59 0.0009
2023-02-14 2022-12-31 13F INTER PARFUMS COM 458334109 3,528 1 0.03 340 27.34 0.0002
2022-11-14 2022-09-30 13F INTER PARFUMS COM 458334109 3,527 -75 -2.08 267 1.52 0.0002
2022-08-15 2022-06-30 13F INTER PARFUMS COM 458334109 3,602 76 2.16 263 -15.16 0.0002
2022-05-16 2022-03-31 13F INTER PARFUMS COM 458334109 3,526 1 0.03 310 -17.77 0.0001
2022-02-14 2021-12-31 13F INTER PARFUMS COM 458334109 3,525 3,525 377 0.0002
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.