F5, Inc.
US ˙ NasdaqGS ˙ US3156161024

SecurityFFIV / F5, Inc.
InstitutionKBC Group NV
Latest Disclosed Ownership14,763 shares
Latest Disclosed Value $ 4,271
KBC Group NV reports 3.10% decrease in ownership of FFIV / F5, Inc.

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 14,763 shares of F5, Inc. (US:FFIV) valued at $4,271,379 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 15,236 shares of F5, Inc.. This represents a change in shares of -3.10% during the quarter. The current value of the position is $5,988,759 USD.

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)
2026-05-07 2026-03-31 13F F5 COM 315616102 14,763 -473 -3.10 4 33.33 0.0055
2026-01-26 2025-12-31 13F F5 COM 315616102 15,236 -22,715 -59.85 4 -75.00 0.0089
2026-01-20 2025-09-30 13F F5 COM 315616102 37,951 4,910 14.86 12 33.33 0.0294
2025-08-08 2025-06-30 13F F5 COM 315616102 33,041 4,183 14.50 10 28.57 0.0263
2025-04-25 2025-03-31 13F F5 COM 315616102 28,858 -2,073 -6.70 8 0.00 0.0238
2025-01-22 2024-12-31 13F F5 COM 315616102 30,931 -17,325 -35.90 8 -30.00 0.0214
2024-11-06 2024-09-30 13F F5 COM 315616102 48,256 -20,005 -29.31 11 -9.09 0.0321
2024-07-17 2024-06-30 13F F5 COM 315616102 68,261 52,012 320.09 12 266.67 0.0355
2024-05-08 2024-03-31 13F F5 COM 315616102 16,249 -2,164 -11.75 3 0.00 0.0098
2024-02-13 2023-12-31 13F F5 COM 315616102 18,413 3,266 21.56 3 50.00 0.0117
2024-02-15 2023-09-30 13F/A-1 F5 COM 315616102 15,147 -33,266 -68.71 2 -71.43 0.0100
2023-11-22 2023-09-30 13F F5 COM 315616102 47,776 0 7 0.0291
2024-02-15 2023-06-30 13F/A-1 F5 COM 315616102 48,413 -1,641 -3.28 7 0.00 0.0291
2023-07-28 2023-06-30 13F F5 COM 315616102 47,776 -1,469 7 0.0291
2024-02-14 2023-03-31 13F/A-1 F5 COM 315616102 50,054 -137,964 -73.38 7 -73.08 0.0310
2023-05-04 2023-03-31 13F F5 COM 315616102 49,245 -70,183 7 0.0338
2024-02-14 2022-12-31 13F/A-1 F5 COM 315616102 188,018 68,590 57.43 27 52.94 0.1309
2023-02-13 2022-12-31 13F F5 COM 315616102 119,428 0 17 0.0001
2024-02-15 2022-09-30 13F/A-1 F5 COM 315616102 119,428 12,650 11.85 17 6.25 0.0898
2022-11-08 2022-09-30 13F F5 COM 315616102 119,428 12,650 17,285 0.0903
2024-02-14 2022-06-30 13F/A-1 F5 COM 315616102 106,778 78,991 284.27 16 220.00 0.0815
2022-07-26 2022-06-30 13F F5 COM 315616102 106,778 78,991 16,341 0.0822
2024-02-14 2022-03-31 13F/A-1 F5 COM 315616102 27,787 9,698 53.61 6 25.00 0.0230
2022-05-06 2022-03-31 13F F5 COM 315616102 27,787 9,698 5,806 0.0214
2024-02-14 2021-12-31 13F/A-1 F5 COM 315616102 18,089 -27,098 -59.97 4 -99.96 0.0146
2022-02-03 2021-12-31 13F F5 COM 315616102 18,089 -27,098 4,427 0.0139
2021-11-10 2021-09-30 13F F5 NETWORKS COM 315616102 45,187 -18,397 -28.93 8,982 -24.32 0.0329
2022-02-15 2021-06-30 13F/A-1 F5 NETWORKS COM 315616102 63,584 43,362 214.43 11,869 181.32 0.0428
2021-08-11 2021-06-30 13F F5 NETWORKS COM 315616102 63,584 43,362 11,869 0.0428
2022-02-14 2021-03-31 13F/A-1 F5 NETWORKS COM 315616102 20,222 9,764 93.36 4,219 -77.07 0.0171
2021-04-26 2021-03-31 13F F5 NETWORKS COM 315616102 20,222 9,764 4,219 0.0171
2022-02-14 2020-12-31 13F/A-1 F5 NETWORKS COM 315616102 10,458 4,545 76.86 18,400 2,434.44 0.0087
2021-02-10 2020-12-31 13F F5 NETWORKS COM 315616102 10,458 4,545 1,840 0.0085
2022-02-14 2020-09-30 13F/A-1 F5 NETWORKS COM 315616102 5,913 200 3.50 726 -8.91 0.0043
2020-10-28 2020-09-30 13F F5 NETWORKS COM 315616102 5,913 200 726 0.0043
2022-02-14 2020-06-30 13F/A-1 F5 NETWORKS COM 315616102 5,713 -736 -11.41 797 15.84 0.0053
2020-08-10 2020-06-30 13F F5 NETWORKS COM 315616102 5,713 -736 797 0.0053
2020-05-04 2020-03-31 13F F5 NETWORKS COM 315616102 6,449 1,727 36.57 688 4.40 0.0058
2020-02-11 2019-12-31 13F F5 NETWORKS COM 315616102 4,722 -18,997 -80.09 659 -80.22 0.0042
2019-11-07 2019-09-30 13F F5 NETWORKS COM 315616102 23,719 -21,251 -47.26 3,331 -49.14 0.0244
2019-08-08 2019-06-30 13F/A-1 F5 NETWORKS COM 315616102 44,970 -1,770 -3.79 6,549 -10.72 0.0507
2019-07-30 2019-06-30 13F F5 NETWORKS COM 315616102 44,970 -1,770 6,549
2019-08-07 2019-03-31 13F/A-1 F5 NETWORKS COM 315616102 46,740 -3,184 -6.38 7,335 -9.32 0.0604
2019-05-10 2019-03-31 13F F5 NETWORKS COM 315616102 46,740 -3,184 7,335
2019-01-31 2018-12-31 13F F5 NETWORKS COM 315616102 49,924 -13,977 -21.87 8,089 -36.53 0.0901
2018-11-14 2018-09-30 13F F5 NETWORKS COM 315616102 63,901 -4,021 -5.92 12,744 8.80 0.0964
2018-08-03 2018-06-30 13F F5 NETWORKS COM 315616102 67,922 14,792 27.84 11,713 52.45 0.1020
2018-08-03 2018-03-31 13F/A-1 F5 NETWORKS COM 315616102 53,130 45,547 600.65 7,683 672.16 0.0711
2018-05-09 2018-03-31 13F F5 NETWORKS COM 315616102 53,130 45,547 7,683
2018-08-03 2017-12-31 13F/A-1 F5 NETWORKS COM 315616102 7,583 0 0.00 995 8.86 0.0085
2018-02-07 2017-12-31 13F F5 NETWORKS COM 315616102 7,583 0 995
2017-11-13 2017-09-30 13F F5 NETWORKS COM 315616102 7,583 0 0.00 914 -5.09 0.0083
2017-08-04 2017-06-30 13F F5 NETWORKS COM 315616102 7,583 -154,594 -95.32 963 -95.84 0.0093
2017-05-10 2017-03-31 13F F5 NETWORKS COM 315616102 162,177 -8,150 -4.78 23,122 -6.20 0.2087
2017-02-16 2016-12-31 13F F5 NETWORKS COM 315616102 170,327 122,857 258.81 24,650 316.60 0.2443
2016-11-03 2016-09-30 13F F5 NETWORKS COM 315616102 47,470 4,488 10.44 5,917 20.93 0.0699
2016-08-03 2016-06-30 13F F5 NETWORKS COM 315616102 42,982 -10,049 -18.95 4,893 -12.83 0.0700
2016-05-11 2016-03-31 13F F5 NETWORKS COM 315616102 53,031 -36,516 -40.78 5,613 -35.36 0.0933
2016-02-11 2015-12-31 13F F5 NETWORKS COM 315616102 89,547 72,343 420.50 8,683 335.89 0.1600
2015-11-12 2015-09-30 13F F5 NETWORKS COM 315616102 17,204 -31,899 -64.96 1,992 -66.29 0.0401
2015-12-16 2015-06-30 13F/A-1 F5 NETWORKS COM 315616102 49,103 33,025 205.40 5,909 219.75 0.0760
2015-07-31 2015-06-30 13F F5 NETWORKS COM 315616102 49,103 5,909
2015-12-16 2015-03-31 13F/A-1 F5 NETWORKS COM 315616102 16,078 -31,269 -66.04 1,848 -70.09 0.0235
2015-04-30 2015-03-31 13F F5 NETWORKS COM 315616102 16,078 1,848
2015-12-15 2014-12-31 13F/A-1 F5 NETWORKS COM 315616102 47,347 43,644 1,178.61 6,178 1,307.29 0.0736
2015-02-12 2014-12-31 13F F5 NETWORKS COM 315616102 47,347 6,178
2014-10-16 2014-09-30 13F F5 NETWORKS COM 315616102 3,703 -1,218 -24.75 439 -19.89 0.0153
2014-08-01 2014-06-30 13F F5 NETWORKS COM 315616102 4,921 0 0.00 548 4.38 0.0063
2014-04-30 2014-03-31 13F F5 NETWORKS COM 315616102 4,921 -6,936 -58.50 525 -51.25 0.0083
2014-01-21 2013-12-31 13F F5 NETWORKS COM 315616102 11,857 -4,673 -28.27 1,077 -24.10 0.0163
2013-11-06 2013-09-30 13F F5 NETWORKS COM 315616102 16,530 -2,942 -15.11 1,419 5.90 0.0228
2013-07-29 2013-06-30 13F F5 NETWORKS COM 315616102 19,472 19,472 1,340 0.0249
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.