Palo Alto Networks, Inc.
CH ˙ SWX ˙ US6974351057
SecurityCH:PANW / Palo Alto Networks, Inc.
InstitutionWASHINGTON TRUST Co
Latest Disclosed Ownership191,762 shares
Latest Disclosed Value $ 30,743,284
WASHINGTON TRUST Co reports 1.00% decrease in ownership of PANW / Palo Alto Networks, Inc.

On April 6, 2026 - WASHINGTON TRUST Co filed a 13F-HR form disclosing ownership of 191,762 shares of Palo Alto Networks, Inc. (CH:PANW) valued at $30,743,284 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 193,692 shares of Palo Alto Networks, Inc.. This represents a change in shares of -1.00% 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)
2026-04-06 2026-03-31 13F PALO ALTO NETWORKS Equities 697435105 191,762 -1,930 -1.00 30,743 -13.83 1.0000
2026-02-10 2025-12-31 13F PALO ALTO NETWORKS Equities 697435105 193,692 -2,870 -1.46 35,678 -10.86 1.1661
2025-11-12 2025-09-30 13F PALO ALTO NETWORKS Equities 697435105 196,562 -127 -0.06 40,024 -0.56 1.3132
2025-08-08 2025-06-30 13F PALO ALTO NETWORKS Equities 697435105 196,689 -3,003 -1.50 40,250 18.12 1.4230
2025-04-25 2025-03-31 13F PALO ALTO NETWORKS COM 697435105 199,692 -6,306 -3.06 34,075 -9.09 1.3061
2025-01-30 2024-12-31 13F Palo Alto Networks COM 697435105 205,998 99,334 93.13 37,483 2.81 1.3446
2024-10-25 2024-09-30 13F Palo Alto Networks COM 697435105 106,664 -3,715 -3.37 36,458 -2.57 1.2781
2024-07-15 2024-06-30 13F Palo Alto Networks COM 697435105 110,379 -2,706 -2.39 37,420 16.46 1.3688
2024-04-23 2024-03-31 13F Palo Alto Networks COM 697435105 113,085 -184 -0.16 32,131 -3.80 1.1804
2024-01-18 2023-12-31 13F Palo Alto Networks COM 697435105 113,269 -5,118 -4.32 33,401 20.34 1.3218
2023-10-18 2023-09-30 13F Palo Alto Networks COM 697435105 118,387 -1,833 -1.52 27,755 -9.65 1.2209
2023-07-27 2023-06-30 13F Palo Alto Networks COM 697435105 120,220 -2,984 -2.42 30,717 24.83 1.2953
2023-05-10 2023-03-31 13F/A-1 Palo Alto Networks COM 697435105 123,204 -1,874 -1.50 24,609 41.00 1.1086
2023-05-04 2023-03-31 13F Palo Alto Networks COM 697435105 124 -124,918 25 1.0376
2023-07-27 2022-12-31 13F/A-1 Palo Alto Networks COM 697435105 125,078 -7,001 -5.30 17,453 -19.32 0.8131
2023-02-08 2022-12-31 13F Palo Alto Networks COM 697435105 125,042 -7,037 17 0.0008
2022-10-14 2022-09-30 13F Palo Alto Networks COM 697435105 132,079 87,294 194.92 21,633 -2.21 1.0895
2022-07-25 2022-06-30 13F Palo Alto Networks COM 697435105 44,785 -521 -1.15 22,121 -21.57 1.0386
2022-05-05 2022-03-31 13F Palo Alto Networks COM 697435105 45,306 1,094 2.47 28,203 14.58 1.1159
2022-02-09 2021-12-31 13F/A-1 Palo Alto Networks COM 697435105 44,212 -66,150 -59.94 24,615 -53.44 0.9235
2022-02-09 2021-12-31 13F Palo Alto Networks COM 697435105 44,212 -66,150 24,615 0.8614
2021-11-09 2021-09-30 13F Palo Alto Networks COM 697435105 110,362 -2,807 -2.48 52,864 25.89 1.4905
2021-08-05 2021-06-30 13F Palo Alto Networks COM 697435105 113,169 -107 -0.09 41,991 15.10 1.1844
2021-04-28 2021-03-31 13F Palo Alto Networks COM 697435105 113,276 -792 -0.69 36,481 -10.01 1.1198
2021-02-09 2020-12-31 13F Palo Alto Networks COM 697435105 114,068 -2,072 -1.78 40,539 42.62 1.3086
2020-11-05 2020-09-30 13F Palo Alto Networks COM 697435105 116,140 -124 -0.11 28,424 6.91 1.0500
2020-08-04 2020-06-30 13F Palo Alto Networks COM 697435105 116,264 687 0.59 26,587 40.30 1.1041
2020-05-07 2020-03-31 13F Palo Alto Networks COM 697435105 115,577 2,482 2.19 18,950 -27.54 0.9034
2020-02-12 2019-12-31 13F Palo Alto Networks COM 697435105 113,095 68,587 154.10 26,153 158.40 1.0304
2019-11-06 2019-09-30 13F Palo Alto Networks COM 697435105 44,508 44,508 10,121 0.5418
2018-11-13 2018-09-30 13F Palo Alto Networks COM 697435105 0 -312 -100.00 0 -100.00
2018-08-10 2018-06-30 13F Palo Alto Networks COM 697435105 312 312 64 0.0034
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.