Cloudflare, Inc.
MX ˙ BMV ˙ US18915M1071
SecurityMX:NET / Cloudflare, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership241,367 shares
Latest Disclosed Value $ 49,805,249
Janus Henderson Group Plc reports 583.08% increase in ownership of NET / Cloudflare, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 241,367 shares of Cloudflare, Inc. (MX:NET) valued at $49,805,249 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 35,335 shares of Cloudflare, Inc.. This represents a change in shares of 583.08% 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)
2026-05-18 2026-03-31 13F/A-1 CLOUDFLARE CL A COM 18915M107 241,367 206,032 583.08 49,805 614.97 0.0238
2026-05-15 2026-03-31 13F CLOUDFLARE CL A COM 18915M107 241,367 206,032 49,805 0.0092
2026-02-17 2025-12-31 13F CLOUDFLARE CL A COM 18915M107 35,335 11,363 47.40 6,966 35.47 0.0031
2025-11-14 2025-09-30 13F CLOUDFLARE CL A COM 18915M107 23,972 276 1.16 5,142 10.94 0.0023
2025-08-14 2025-06-30 13F CLOUDFLARE CL A COM 18915M107 23,696 -1,903 -7.43 4,636 57.65 0.0023
2025-05-15 2025-03-31 13F CLOUDFLARE CL A COM 18915M107 25,599 3,568 16.20 2,941 23.84 0.0016
2025-02-14 2024-12-31 13F CLOUDFLARE CL A COM 18915M107 22,031 475 2.20 2,374 36.20 0.0012
2024-11-14 2024-09-30 13F CLOUDFLARE CL A COM 18915M107 21,556 -100 -0.46 1,744 -2.84 0.0009
2024-08-14 2024-06-30 13F CLOUDFLARE CL A COM 18915M107 21,656 -5,098 -19.06 1,794 -30.68 0.0010
2024-05-15 2024-03-31 13F CLOUDFLARE CL A COM 18915M107 26,754 -697 -2.54 2,588 13.26 0.0014
2024-02-14 2023-12-31 13F CLOUDFLARE CL A COM 18915M107 27,451 -2,209 -7.45 2,285 22.19 0.0014
2023-11-14 2023-09-30 13F CLOUDFLARE CL A COM 18915M107 29,660 -1,454 -4.67 1,870 -8.06 0.0012
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM 18915M107 31,114 -2,419 -7.21 2,034 -1.55 0.0013
2023-05-15 2023-03-31 13F CLOUDFLARE CL A COM 18915M107 33,533 115 0.34 2,067 36.82 0.0014
2023-02-14 2022-12-31 13F CLOUDFLARE CL A COM 18915M107 33,418 -3 -0.01 1,511 -18.25 0.0011
2023-01-13 2022-09-30 13F/A-1 CLOUDFLARE CL A COM 18915M107 33,421 14 0.04 1,847 26.33 0.0014
2022-11-14 2022-09-30 13F CLOUDFLARE CL A COM 18915M107 33,421 14 1,847 0.0014
2022-08-15 2022-06-30 13F CLOUDFLARE CL A COM 18915M107 33,407 -124,586 -78.86 1,462 -92.27 0.0010
2022-05-16 2022-03-31 13F CLOUDFLARE CL A COM 18915M107 157,993 -178,907 -53.10 18,912 -57.31 0.0091
2022-02-14 2021-12-31 13F CLOUDFLARE CL A COM 18915M107 336,900 293,242 671.68 44,304 800.85 0.0185
2021-11-16 2021-09-30 13F CLOUDFLARE CL A COM 18915M107 43,658 -12,009 -21.57 4,918 -16.53 0.0022
2021-08-16 2021-06-30 13F CLOUDFLARE CL A COM 18915M107 55,667 -42,887 -43.52 5,892 -14.92 0.0025
2021-05-17 2021-03-31 13F CLOUDFLARE CL A COM 18915M107 98,554 18,326 22.84 6,925 13.60 0.0032
2021-02-16 2020-12-31 13F CLOUDFLARE CL A COM 18915M107 80,228 19,722 32.60 6,096 145.41 0.0028
2020-11-16 2020-09-30 13F CLOUDFLARE CL A COM 18915M107 60,506 60,506 2,484 0.0013
2020-02-15 2019-12-31 13F CLOUDFLARE CL A COM 18915M107 0 -64,124 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CLOUDFLARE CL A COM 18915M107 64,124 64,124 1,191 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.