Cloudflare, Inc.
MX ˙ BMV ˙ US18915M1071
SecurityMX:NET / Cloudflare, Inc.
InstitutionHighTower Advisors, LLC
Latest Disclosed Ownership93,181 shares
Latest Disclosed Value $ 19,226,897
HighTower Advisors, LLC ownership in NET / Cloudflare, Inc.

On May 5, 2026 - HighTower Advisors, LLC filed a 13F-HR form disclosing ownership of 93,181 shares of Cloudflare, Inc. (MX:NET) valued at $19,226,897 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 85,892 shares of Cloudflare, Inc.. This represents a change in shares of 8.49% during the quarter.

HighTower Advisors, LLC has a history of taking positions in derivatives of the underlying security (NET) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:NET / Cloudflare, Inc. Historical Put/Call Ratio
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 CLOUDFLARE CL A COM 18915M107 93,181 7,289 8.49 19,227 13.54 0.0204
2026-02-06 2025-12-31 13F CLOUDFLARE CL A COM 18915M107 85,892 -165 -0.19 16,934 -8.30 0.0185
2025-11-07 2025-09-30 13F CLOUDFLARE CL A COM 18915M107 86,057 761 0.89 18,467 10.55 0.0210
2025-08-11 2025-06-30 13F CLOUDFLARE CL A COM 18915M107 85,296 4,735 5.88 16,704 83.99 0.0209
2025-05-13 2025-03-31 13F CLOUDFLARE CL A COM 18915M107 80,561 -1,674 -2.04 9,078 2.52 0.0123
2025-02-07 2024-12-31 13F CLOUDFLARE CL A COM 18915M107 82,235 -1,827 -2.17 8,855 31.28 0.0121
2024-11-14 2024-09-30 13F CLOUDFLARE CL A COM 18915M107 84,062 4,189 5.24 6,745 2.63 0.0096
2024-08-13 2024-06-30 13F CLOUDFLARE CL A COM 18915M107 79,873 7,018 9.63 6,572 -6.75 0.0102
2024-05-06 2024-03-31 13F CLOUDFLARE CL A COM 18915M107 72,855 1,967 2.77 7,048 19.60 0.0114
2024-02-12 2023-12-31 13F CLOUDFLARE CL A COM 18915M107 70,888 15,698 28.44 5,893 69.29 0.0099
2023-11-08 2023-09-30 13F CLOUDFLARE CL A COM 18915M107 55,190 3,353 6.47 3,481 2.59 0.0065
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM 18915M107 51,837 4,297 9.04 3,393 16.04 0.0067
2023-05-12 2023-03-31 13F CLOUDFLARE CL A COM 18915M107 47,540 4,809 11.25 2,924 51.27 0.0064
2023-02-09 2022-12-31 13F CLOUDFLARE CL A COM 18915M107 42,731 -24,337 -36.29 1,933 -47.88 0.0044
2022-11-09 2022-09-30 13F CLOUDFLARE CL A COM 18915M107 67,068 8,738 14.98 3,709 45.22 0.0099
2022-08-10 2022-06-30 13F CLOUDFLARE CL A COM 18915M107 58,330 8,736 17.62 2,554 -57.00 0.0066
2022-05-12 2022-03-31 13F CLOUDFLARE CL A COM 18915M107 49,594 1,412 2.93 5,939 -6.35 0.0132
2022-02-10 2021-12-31 13F CLOUDFLARE CL A COM 18915M107 48,182 1,370 2.93 6,342 20.07 0.0139
2021-11-12 2021-09-30 13F CLOUDFLARE CL A COM 18915M107 46,812 -12,240 -20.73 5,282 -15.60 0.0141
2021-08-06 2021-06-30 13F CLOUDFLARE CL A COM 18915M107 59,052 18,222 44.63 6,258 117.67 0.0181
2021-05-10 2021-03-31 13F CLOUDFLARE CL A COM 18915M107 40,830 21,990 116.72 2,875 100.35 0.0091
2021-02-10 2020-12-31 13F CLOUDFLARE CL A COM 18915M107 18,840 2,754 17.12 1,435 117.75 0.0060
2020-11-13 2020-09-30 13F CLOUDFLARE CL A COM 18915M107 16,086 4,426 37.96 659 56.53 0.0032
2020-08-10 2020-06-30 13F CLOUDFLARE CL A COM 18915M107 11,660 11,660 421 0.0023
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-08-13 2024-06-30 13F CLOUDFLARE CL A COM Call 0 -100.00 0 n/a n/a n/a
2024-05-06 2024-03-31 13F CLOUDFLARE CL A COM Call 100 0 n/a n/a n/a
2020-11-13 2020-09-30 13F CLOUDFLARE CL A COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-08-10 2020-06-30 13F CLOUDFLARE CL A COM Call 30,000 206 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-11-07 2025-09-30 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F CLOUDFLARE CL A COM Put 1,700 13 n/a n/a n/a
2024-02-12 2023-12-31 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-08 2023-09-30 13F CLOUDFLARE CL A COM Put 80 0.00 26 -62.32 n/a n/a n/a
2023-08-14 2023-06-30 13F CLOUDFLARE CL A COM Put 80 70 n/a n/a n/a
2023-02-09 2022-12-31 13F CLOUDFLARE CL A COM Put 0 -100.00 0 n/a n/a n/a
2022-11-09 2022-09-30 13F CLOUDFLARE CL A COM Put 2 0 n/a n/a n/a
2022-05-11 2022-03-31 13F CLOUDFLARE CL A COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-10 2021-12-31 13F CLOUDFLARE CL A COM Put 3 1 n/a n/a n/a
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.