Palo Alto Networks, Inc.
CH ˙ SWX ˙ US6974351057
SecurityCH:PANW / Palo Alto Networks, Inc.
InstitutionIthaka Group Llc
Latest Disclosed Ownership71,203 shares
Latest Disclosed Value $ 11,415,265
Ithaka Group Llc reports 2.23% increase in ownership of PANW / Palo Alto Networks, Inc.

On May 12, 2026 - Ithaka Group Llc filed a 13F-HR form disclosing ownership of 71,203 shares of Palo Alto Networks, Inc. (CH:PANW) valued at $11,415,265 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 69,647 shares of Palo Alto Networks, Inc.. This represents a change in shares of 2.23% 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)
2026-05-12 2026-03-31 13F Palo Alto Networks COM 697435105 71,203 1,556 2.23 11,415 -11.01 2.3687
2026-02-10 2025-12-31 13F Palo Alto Networks COM 697435105 69,647 890 1.29 12,829 -8.37 2.2866
2025-11-12 2025-09-30 13F Palo Alto Networks COM 697435105 68,757 -185 -0.27 14,000 -0.77 2.3902
2025-08-12 2025-06-30 13F Palo Alto Networks COM 697435105 68,942 3,539 5.41 14,108 26.42 2.4153
2025-05-09 2025-03-31 13F Palo Alto Networks COM 697435105 65,403 -3,316 -4.83 11,160 -10.75 2.2742
2025-02-10 2024-12-31 13F Palo Alto Networks COM 697435105 68,719 33,964 97.72 12,504 5.26 2.3037
2024-11-12 2024-09-30 13F Palo Alto Networks COM 697435105 34,755 -265 -0.76 11,879 0.06 2.2528
2024-08-09 2024-06-30 13F Palo Alto Networks COM 697435105 35,020 355 1.02 11,872 20.54 2.1915
2024-05-13 2024-03-31 13F Palo Alto Networks COM 697435105 34,665 -2,858 -7.62 9,849 -10.98 1.8569
2024-02-12 2023-12-31 13F Palo Alto Networks COM 697435105 37,523 -254 -0.67 11,065 24.93 2.1871
2023-11-13 2023-09-30 13F Palo Alto Networks COM 697435105 37,777 -1,479 -3.77 8,856 -11.70 2.0385
2023-08-11 2023-06-30 13F Palo Alto Networks COM 697435105 39,256 12,221 45.20 10,030 85.78 2.0940
2023-05-12 2023-03-31 13F Palo Alto Networks COM 697435105 27,035 -2,743 -9.21 5,400 29.94 1.1374
2023-02-13 2022-12-31 13F Palo Alto Networks COM 697435105 29,778 29,778 4,155 0.4768
2019-02-14 2018-12-31 13F Palo Alto Networks COM 697435105 0 -942 -100.00 0 -100.00
2018-11-13 2018-09-30 13F Palo Alto Networks COM 697435105 942 -50 -5.04 212 3.92 0.0315
2018-08-13 2018-06-30 13F Palo Alto Networks COM 697435105 992 -112 -10.14 204 2.00 0.0317
2018-05-14 2018-03-31 13F Palo Alto Networks COM 697435105 1,104 -84,668 -98.71 200 -98.39 0.0336
2018-02-06 2017-12-31 13F Palo Alto Networks COM 697435105 85,772 -1,153 -1.33 12,432 -0.75 2.2294
2017-11-13 2017-09-30 13F Palo Alto Networks COM 697435105 86,925 -5,294 -5.74 12,526 1.51 2.3027
2017-08-11 2017-06-30 13F Palo Alto Networks COM 697435105 92,219 203 0.22 12,340 19.02 2.2403
2017-05-09 2017-03-31 13F Palo Alto Networks COM 697435105 92,016 -5,205 -5.35 10,368 -14.72 2.0040
2017-02-10 2016-12-31 13F Palo Alto Networks COM 697435105 97,221 -21,387 -18.03 12,157 -35.67 2.3957
2016-11-14 2016-09-30 13F Palo Alto Networks COM 697435105 118,608 13,494 12.84 18,898 46.60 2.9696
2016-08-12 2016-06-30 13F Palo Alto Networks COM 697435105 105,114 -1,651 -1.55 12,891 -25.99 1.8718
2016-05-12 2016-03-31 13F Palo Alto Networks COM 697435105 106,765 1,820 1.73 17,418 -5.77 2.5161
2016-02-11 2015-12-31 13F Palo Alto Networks COM 697435105 104,945 29,039 38.26 18,485 41.58 2.4673
2015-11-12 2015-09-30 13F Palo Alto Networks COM 697435105 75,906 36,577 93.00 13,056 90.02 2.0042
2015-08-11 2015-06-30 13F Palo Alto Networks COM 697435105 39,329 -3,133 -7.38 6,871 10.77 1.1545
2015-05-11 2015-03-31 13F Palo Alto Networks COM 697435105 42,462 42,462 6,203 0.9820
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.