Palo Alto Networks, Inc.
CH ˙ SWX ˙ US6974351057
SecurityCH:PANW / Palo Alto Networks, Inc.
InstitutionEnterprise Financial Services Corp
Latest Disclosed Ownership1,533 shares
Latest Disclosed Value $ 245,770
Enterprise Financial Services Corp reports 14.75% increase in ownership of PANW / Palo Alto Networks, Inc.

On May 5, 2026 - Enterprise Financial Services Corp filed a 13F-HR form disclosing ownership of 1,533 shares of Palo Alto Networks, Inc. (CH:PANW) valued at $245,770 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 1,336 shares of Palo Alto Networks, Inc.. This represents a change in shares of 14.75% 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)
2026-05-05 2026-03-31 13F PALO ALTO NETWORKS COM 697435105 1,533 197 14.75 246 -0.41 0.0691
2026-01-14 2025-12-31 13F PALO ALTO NETWORKS COM 697435105 1,336 -54 -3.88 246 -13.07 0.1249
2025-10-15 2025-09-30 13F PALO ALTO NETWORKS COM 697435105 1,390 -116 -7.70 283 -8.12 0.1459
2025-08-12 2025-06-30 13F PALO ALTO NETWORKS COM 697435105 1,506 183 13.83 308 36.89 0.1645
2025-05-14 2025-03-31 13F PALO ALTO NETWORKS COM 697435105 1,323 115 9.52 226 2.74 0.1335
2025-02-07 2024-12-31 13F PALO ALTO NETWORKS COM 697435105 1,208 622 106.14 220 9.50 0.1223
2024-11-12 2024-09-30 13F PALO ALTO NETWORKS COM 697435105 586 586 200 0.1167
2021-11-15 2021-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 0 -30 -100.00 0 -100.00
2021-08-16 2021-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 30 -109 -78.42 11 -75.56 0.0018
2021-05-13 2021-03-31 13F Palo Alto Netwo Common Stock 697435105 139 8 6.11 45 -4.26 0.0080
2021-02-12 2020-12-31 13F Palo Alto Netwo Common Stock 697435105 131 1 0.77 47 46.88 0.0089
2020-11-13 2020-09-30 13F Palo Alto Netwo Common Stock 697435105 130 -200 -60.61 32 -57.33 0.0066
2020-08-04 2020-06-30 13F Palo Alto Netwo Common Stock 697435105 330 11 3.45 75 41.51 0.0162
2020-05-15 2020-03-31 13F Palo Alto Netwo Common Stock 697435105 319 0 0.00 53 -28.38 0.0134
2020-01-28 2019-12-31 13F Palo Alto Netwo Common Stock 697435105 319 0 0.00 74 13.85 0.0161
2019-10-31 2019-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 319 -205 -39.12 65 -38.68 0.0148
2019-07-30 2019-06-30 13F Palo Alto Netwo Common Stock 697435105 524 -38 -6.76 106 -22.06 0.0230
2019-04-26 2019-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 562 545 3,205.88 136 4,433.33 0.0297
2019-01-25 2018-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 -25.00 0.0019
2018-10-26 2018-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 4 33.33 0.0021
2018-07-27 2018-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 0.00 0.0015
2018-04-27 2018-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 50.00 0.0015
2018-01-26 2017-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0010
2017-10-27 2017-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0010
2017-07-28 2017-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0010
2017-04-27 2017-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0010
2017-01-26 2016-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 -33.33 0.0010
2016-10-28 2016-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 50.00 0.0017
2016-07-29 2016-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 -33.33 0.0012
2016-04-29 2016-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 0.00 0.0018
2016-01-29 2015-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 0.00 0.0018
2015-10-29 2015-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 0.00 0.0019
2015-07-27 2015-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 3 50.00 0.0018
2015-04-29 2015-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0012
2015-01-23 2014-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 0.00 0.0012
2014-10-24 2014-09-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 0 0.00 2 100.00 0.0013
2014-07-24 2014-06-30 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 -13 -43.33 1 -50.00 0.0006
2014-04-24 2014-03-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 30 13 76.47 2 100.00 0.0012
2014-01-30 2013-12-31 13F PALO ALTO NETWORKS COMMON STOCK 697435105 17 17 1 0.0006
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.