ION ASSET MANAGEMENT LTD
Q2 2025 Form 13-F

HERZLIYA
CIK 0001603837 · Institutional investment manager
Consolidated report · includes 1 manager since Q2 2019
$1.8B Reported Value Total

ION ASSET MANAGEMENT LTD. reports under management (AUM).

Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
Reported value
$1.8B
Quarter over quarter
+12.3%
Holdings
58
Top-10 concentration
76.6%

Filing Structure

Reports holdings for

Key People

Named on the latest Form 13-F filing — not necessarily an owner
Jonathan Half / Stephen Levey
Director/Director

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13F Metrics

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Q2 2025 13F record

Q2 2025 13F filing summary

Q2 2025 Form 13F portfolio summary
Period of report June 30, 2025
Filed August 15, 2025
Form 13F-HR
Reported value $1.8B
Positions 58
Change in reported value +17.6%
New positions 13
Exited positions 7
Position turnover 30.8%
Top-10 concentration 76.6%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q3 2025 13F
Filed Nov 14, 2025
61 $910.6M
Q2 2025 13F
Filed Aug 15, 2025
58 $1.8B
Q1 2025 13F
Filed May 15, 2025
52 $1.5B
Q4 2024 13F
Filed Feb 14, 2025
58 $1.7B
Q3 2024 13F
Filed Nov 14, 2024
63 $1.9B
Q2 2024 13F
Filed Aug 14, 2024
67 $1.8B
Q1 2024 13F
Filed May 15, 2024
38 $1.6B
Q4 2023 13F
Filed Feb 14, 2024
33 $1.5B
Q3 2023 13F
Filed Nov 14, 2023
34 $967.9M
Q2 2023 13F
Filed Aug 14, 2023
36 $856.5M
Q1 2023 13F
Filed May 15, 2023
33 $953.7M
Q4 2022 13F
Filed Feb 14, 2023
32 $739.1M
Q3 2022 13F
Filed Oct 26, 2022
39 $635.7M
Q2 2022 13F
Filed Aug 16, 2022
42 $669.3M
Q1 2022 13F
Filed May 16, 2022
39 $783.8M
Q4 2021 13F
Filed Feb 14, 2022
35 $787.4M
Q3 2021 13F
Filed Nov 15, 2021
49 $731.4M
Q2 2021 13F
Filed Aug 16, 2021
48 $813.9M
Q1 2021 13F
Filed May 17, 2021
40 $868.8M
Q4 2020 13F
Filed Feb 16, 2021
43 $832.2M

24 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q2 2025

Largest Q2 2025 13F positions by reported value
# Holding Reported value % of portfolio
1 TEVA TEVA PHARMACEUTICAL INDS LTD $642.7M 35.34%
2 AER AERCAP HOLDINGS NV $111.0M 6.1%
3 PRGO PERRIGO CO PLC $102.0M 5.61%
4 CIEN CIENA CORP $98.5M 5.42%
5 CSGP COSTAR GROUP INC $94.1M 5.17%
6 LW LAMB WESTON HLDGS INC $84.4M 4.64%
7 DK DELEK US HLDGS INC NEW $79.3M 4.36%
8 ILMN ILLUMINA INC $71.6M 3.94%
9 DAC DANAOS CORPORATION $56.4M 3.1%
10 TLT P ISHARES TR $53.0M 2.91%
11 GDX VANECK ETF TRUST $51.0M 2.8%
12 QQQ P UNIT SER 1 $40.9M 2.25%
13 SLV ISHARES SILVER TR $36.7M 2.02%
14 NMM NAVIOS MARITIME PARTNERS L P $30.8M 1.69%
15 PHIN PHINIA INC $27.8M 1.53%
16 IBIT P ISHARES BITCOIN TRUST ETF $27.5M 1.51%
17 IMAX IMAX CORP $21.7M 1.2%
18 OKTA OKTA INC $16.7M 0.92%
19 DT DYNATRACE INC $16.6M 0.91%
20 HYG P IBOXX HI YD ETF $16.1M 0.89%

Values as reported on the Q2 2025 Form 13F. Every position is in the holdings table below.

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