Palo Alto Networks, Inc.
CH ˙ SWX ˙ US6974351057
SecurityCH:PANW / Palo Alto Networks, Inc.
InstitutionDe Burlo Group Inc
Latest Disclosed Ownership8,820 shares
Latest Disclosed Value $ 1,414,022
De Burlo Group Inc reports 3.55% decrease in ownership of PANW / Palo Alto Networks, Inc.

On May 14, 2026 - De Burlo Group Inc filed a 13F-HR form disclosing ownership of 8,820 shares of Palo Alto Networks, Inc. (CH:PANW) valued at $1,414,022 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,145 shares of Palo Alto Networks, Inc.. This represents a change in shares of -3.55% 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 PALO ALTO NETWORKS COM 697435105 8,820 -325 -3.55 1,414 -16.03 0.3204
2026-02-13 2025-12-31 13F PALO ALTO NETWORKS COM 697435105 9,145 -1,050 -10.30 1,685 -18.84 0.2045
2025-11-13 2025-09-30 13F PALO ALTO NETWORKS COM 697435105 10,195 -525 -4.90 2,076 -5.38 0.2501
2025-08-13 2025-06-30 13F PALO ALTO NETWORKS COM 697435105 10,720 -315 -2.85 2,194 16.46 0.2890
2025-05-07 2025-03-31 13F PALO ALTO NETWORKS COM 697435105 11,035 -155 -1.39 1,883 -7.51 0.2780
2025-02-14 2024-12-31 13F PALO ALTO NETWORKS COM 697435105 11,190 5,095 83.59 2,036 -2.26 0.2717
2024-11-12 2024-09-30 13F PALO ALTO NETWORKS COM 697435105 6,095 -10 -0.16 2,083 0.68 0.2565
2024-08-14 2024-06-30 13F PALO ALTO NETWORKS COM 697435105 6,105 -1,080 -15.03 2,070 1.37 0.2782
2024-05-13 2024-03-31 13F PALO ALTO NETWORKS COM 697435105 7,185 -31,803 -81.57 2,041 -77.67 0.2710
2024-02-13 2023-12-31 13F PALO ALTO NETWORKS COM 697435105 38,988 0 0.00 9,140 0.00 1.5880
2023-11-13 2023-09-30 13F PALO ALTO NETWORKS COM 697435105 38,988 -47,900 -55.13 9,140 -58.83 1.5880
2023-08-14 2023-06-30 13F PALO ALTO NETWORKS COM 697435105 86,888 4,625 5.62 22,201 35.11 3.6941
2023-05-15 2023-03-31 13F PALO ALTO NETWORKS COM 697435105 82,263 13,003 18.77 16,431 70.02 3.2091
2023-02-14 2022-12-31 13F PALO ALTO NETWORKS COM 697435105 69,260 -640 -0.92 9,665 -99.92 2.1596
2022-11-14 2022-09-30 13F PALO ALTO NETWORKS COM 697435105 69,900 69,900 11,448,921 2.7253
2019-08-07 2019-06-30 13F PALO ALTO NETWORKS COM 697435105 0 -76,320 -100.00 0 -100.00
2019-05-09 2019-03-31 13F PALO ALTO NETWORKS COM 697435105 76,320 76,320 18,536 3.7412
2019-02-07 2018-12-31 13F PALO ALTO NETWORKS COM 697435105 0 -36,150 -100.00 0 -100.00
2018-11-08 2018-09-30 13F PALO ALTO NETWORKS COM 697435105 36,150 -18,200 -33.49 8,143 -27.08 1.5273
2018-08-10 2018-06-30 13F PALO ALTO NETWORKS COM 697435105 54,350 22,950 73.09 11,167 95.95 2.3639
2018-05-03 2018-03-31 13F PALO ALTO NETWORKS COM 697435105 31,400 31,400 5,699 1.2408
2017-05-04 2017-03-31 13F PALO ALTO NETWORKS COM 697435105 0 -5,100 -100.00 0 -100.00
2017-02-10 2016-12-31 13F PALO ALTO NETWORKS COM 697435105 5,100 -4,650 -47.69 638 -58.92 0.1553
2016-11-10 2016-09-30 13F PALO ALTO NETWORKS COM 697435105 9,750 -3,550 -26.69 1,553 -4.78 0.4308
2016-08-04 2016-06-30 13F PALO ALTO NETWORKS COM 697435105 13,300 0 0.00 1,631 -24.80 0.3943
2016-05-05 2016-03-31 13F PALO ALTO NETWORKS COM 697435105 13,300 -44,850 -77.13 2,169 -78.82 0.6274
2016-02-04 2015-12-31 13F PALO ALTO NETWORKS COM 697435105 58,150 -16,450 -22.05 10,242 -20.18 2.4101
2015-11-05 2015-09-30 13F PALO ALTO NETWORKS COM 697435105 74,600 27,300 57.72 12,831 55.28 3.0119
2015-08-07 2015-06-30 13F PALO ALTO NETWORKS COM 697435105 47,300 47,300 8,263 1.7296
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.