Rapid7 公司
MX ˙ BMV ˙ US7534221046
SecurityMX:RPD / Rapid7, Inc.
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership938,460 shares
Latest Disclosed Value $ 5,170,915
Millennium Management Llc ownership in RPD / Rapid7, Inc.

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 938,460 shares of Rapid7, Inc. (MX:RPD) valued at $5,170,915 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 981,190 shares of Rapid7, Inc.. This represents a change in shares of -4.35% during the quarter.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (RPD) 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:RPD / Rapid7, 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)
2026-05-15 2026-03-31 13F RAPID7 COM 753422104 938,460 -42,730 -4.35 5,171 -65.33 0.0022
2026-02-17 2025-12-31 13F RAPID7 COM 753422104 981,190 499,603 103.74 14,914 65.18 0.0063
2025-11-14 2025-09-30 13F RAPID7 COM 753422104 481,587 143,540 42.46 9,030 15.48 0.0039
2025-08-14 2025-06-30 13F RAPID7 COM 753422104 338,047 199,933 144.76 7,819 113.58 0.0038
2025-05-15 2025-03-31 13F RAPID7 COM 753422104 138,114 87,092 170.69 3,661 78.41 0.0019
2025-02-14 2024-12-31 13F RAPID7 COM 753422104 51,022 -2,295 -4.30 2,053 -3.48 0.0010
2024-11-14 2024-09-30 13F RAPID7 COM 753422104 53,317 -360,163 -87.11 2,127 -88.11 0.0010
2024-08-14 2024-06-30 13F RAPID7 COM 753422104 413,480 46,831 12.77 17,875 -0.59 0.0083
2024-05-15 2024-03-31 13F RAPID7 COM 753422104 366,649 101,796 38.43 17,980 18.89 0.0077
2024-02-14 2023-12-31 13F RAPID7 COM 753422104 264,853 -255,901 -49.14 15,123 -36.56 0.0065
2023-11-14 2023-09-30 13F RAPID7 COM 753422104 520,754 434,915 506.66 23,840 513.48 0.0120
2023-08-14 2023-06-30 13F RAPID7 COM 753422104 85,839 -424,926 -83.19 3,887 -83.43 0.0019
2023-05-15 2023-03-31 13F RAPID7 COM 753422104 510,765 50,111 10.88 23,449 49.81 0.0134
2023-02-14 2022-12-31 13F RAPID7 COM 753422104 460,654 -133,014 -22.41 15,653 -38.54 0.0087
2022-11-14 2022-09-30 13F RAPID7 COM 753422104 593,668 549,198 1,234.99 25,468 757.22 0.0151
2022-08-15 2022-06-30 13F RAPID7 COM 753422104 44,470 -59,248 -57.12 2,971 -74.25 0.0018
2022-05-16 2022-03-31 13F RAPID7 COM 753422104 103,718 52,162 101.18 11,538 90.15 0.0061
2022-02-14 2021-12-31 13F RAPID7 COM 753422104 51,556 -76,267 -59.67 6,068 -58.00 0.0031
2021-11-15 2021-09-30 13F RAPID7 COM 753422104 127,823 83,063 185.57 14,447 241.05 0.0087
2021-08-16 2021-06-30 13F RAPID7 COM 753422104 44,760 -97,806 -68.60 4,236 -60.18 0.0026
2021-05-17 2021-03-31 13F RAPID7 COM 753422104 142,566 -65,893 -31.61 10,637 -43.41 0.0076
2021-02-16 2020-12-31 13F RAPID7 COM 753422104 208,459 202,727 3,536.76 18,795 5,254.70 0.0136
2020-11-16 2020-09-30 13F RAPID7 COM 753422104 5,732 954 19.97 351 43.85 0.0004
2020-08-14 2020-06-30 13F RAPID7 COM 753422104 4,778 -318,470 -98.52 244 -98.26 0.0003
2020-05-14 2020-03-31 13F RAPID7 COM 753422104 323,248 158,478 96.18 14,006 51.74 0.0315
2020-02-14 2019-12-31 13F RAPID7 COM 753422104 164,770 84,191 104.48 9,230 152.39 0.0115
2019-11-14 2019-09-30 13F RAPID7 COM 753422104 80,579 -50,586 -38.57 3,657 -51.80 0.0058
2019-08-15 2019-06-30 13F/A-1 RAPID7 COM 753422104 131,165 -147,962 -53.01 7,587 -46.29 0.0114
2019-08-14 2019-06-30 13F RAPID7 COM 753422104 131,165 -147,962 7,587
2019-05-14 2019-03-31 13F RAPID7 COM 753422104 279,127 137,324 96.84 14,127 219.69 0.0211
2019-02-15 2018-12-31 13F/A-1 RAPID7 COM 753422104 141,803 141,803 4,419 0.0069
2019-02-14 2018-12-31 13F RAPID7 COM 753422104 141,803 4,419
2018-11-14 2018-09-30 13F RAPID7 COM 753422104 0 -210,156 -100.00 0 -100.00
2018-08-14 2018-06-30 13F RAPID7 COM 753422104 210,156 -252,010 -54.53 5,931 -49.81 0.0077
2018-05-15 2018-03-31 13F RAPID7 COM 753422104 462,166 -48,963 -9.58 11,818 23.90 0.0158
2018-02-14 2017-12-31 13F RAPID7 COM 753422104 511,129 288,392 129.48 9,538 143.32 0.0132
2017-11-14 2017-09-30 13F RAPID7 COM 753422104 222,737 -36,098 -13.95 3,920 -10.01 0.0060
2017-08-14 2017-06-30 13F RAPID7 COM 753422104 258,835 86,315 50.03 4,356 68.58 0.0078
2017-05-15 2017-03-31 13F RAPID7 COM 753422104 172,520 55,309 47.19 2,584 81.21 0.0047
2017-02-14 2016-12-31 13F RAPID7 COM 753422104 117,211 -84,120 -41.78 1,426 -59.86 0.0030
2016-11-14 2016-09-30 13F RAPID7 COM 753422104 201,331 150,011 292.31 3,553 450.00 0.0060
2016-08-15 2016-06-30 13F RAPID7 COM 753422104 51,320 51,320 0.00 646 0.0015
2016-05-16 2016-03-31 13F RAPID7 COM 753422104 0 -13,661 -100.00 0 -100.00
2016-02-16 2015-12-31 13F RAPID7 COM 753422104 13,661 661 5.08 207 -30.07 0.0004
2015-11-16 2015-09-30 13F RAPID7 COM 753422104 13,000 13,000 296 0.0006
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
(%)
2024-11-14 2024-09-30 13F RAPID7 COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F RAPID7 COM Call 8,700 -10.31 376 -20.84 n/a n/a n/a
2024-05-15 2024-03-31 13F RAPID7 COM Call 9,700 -84.25 476 -86.49 n/a n/a n/a
2024-02-14 2023-12-31 13F RAPID7 COM Call 61,600 -0.16 3,517 24.54 n/a n/a n/a
2023-11-14 2023-09-30 13F RAPID7 COM Call 61,700 2,825 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
(%)
2024-05-15 2024-03-31 13F RAPID7 COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F RAPID7 COM Put 22,200 -11.20 1,268 10.75 n/a n/a n/a
2023-11-14 2023-09-30 13F RAPID7 COM Put 25,000 1,144 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.