Rapid7, Inc.
US ˙ NasdaqGM ˙ US7534221046

SecurityRPD / Rapid7, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership2,112,058 shares
Latest Disclosed Value $ 11,637,440
State Street Corp reports 14.05% increase in ownership of RPD / Rapid7, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 2,112,058 shares of Rapid7, Inc. (US:RPD) valued at $11,637,440 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,851,891 shares of Rapid7, Inc.. This represents a change in shares of 14.05% during the quarter. The current value of the position is $16,452,932 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)
2026-05-15 2026-03-31 13F RAPID7 COM 753422104 2,112,058 260,167 14.05 11,637 -58.66 0.0004
2026-02-13 2025-12-31 13F RAPID7 COM 753422104 1,851,891 77,890 4.39 28,149 -15.37 0.0009
2025-11-14 2025-09-30 13F RAPID7 COM 753422104 1,774,001 114,018 6.87 33,263 -13.37 0.0012
2025-08-14 2025-06-30 13F RAPID7 COM 753422104 1,659,983 -16,098 -0.96 38,395 -13.59 0.0014
2025-05-15 2025-03-31 13F RAPID7 COM 753422104 1,676,081 753 0.04 44,433 -34.08 0.0018
2025-02-14 2024-12-31 13F RAPID7 COM 753422104 1,675,328 96,264 6.10 67,398 7.00 0.0027
2024-11-14 2024-09-30 13F RAPID7 COM 753422104 1,579,064 -10,737 -0.68 62,989 -8.35 0.0026
2024-08-14 2024-06-30 13F RAPID7 COM 753422104 1,589,801 69,779 4.59 68,727 -7.80 0.0030
2024-05-15 2024-03-31 13F RAPID7 COM 753422104 1,520,022 39,093 2.64 74,542 -11.85 0.0033
2024-02-14 2023-12-31 13F RAPID7 COM 753422104 1,480,929 83,951 6.01 84,561 32.22 0.0041
2023-11-14 2023-09-30 13F RAPID7 COM 753422104 1,396,978 16,422 1.19 63,954 2.31 0.0035
2023-08-14 2023-06-30 13F RAPID7 COM 753422104 1,380,556 26,796 1.98 62,512 0.58 0.0033
2023-05-15 2023-03-31 13F RAPID7 COM 753422104 1,353,760 69,046 5.37 62,151 42.37 0.0035
2023-05-15 2022-12-31 13F/A-99 RAPID7 COM 753422104 1,284,714 52,236 4.24 43,655 -17.44 0.0026
2023-05-15 2022-12-31 13F RAPID7 COM 753422104 1,284,714 52,236 43,655 0.0026
2022-11-15 2022-09-30 13F RAPID7 COM 753422104 1,232,478 12,454 1.02 52,873 -35.12 0.0033
2022-08-15 2022-06-30 13F RAPID7 COM 753422104 1,220,024 26,696 2.24 81,498 -38.61 0.0049
2022-05-16 2022-03-31 13F RAPID7 COM 753422104 1,193,328 38,598 3.34 132,746 -2.32 0.0066
2022-02-14 2021-12-31 13F RAPID7 COM 753422104 1,154,730 -14,413 -1.23 135,900 2.85 0.0064
2021-11-15 2021-09-30 13F RAPID7 COM 753422104 1,169,143 3,968 0.34 132,137 19.84 0.0070
2021-08-16 2021-06-30 13F RAPID7 COM 753422104 1,165,175 98,796 9.26 110,261 38.58 0.0058
2021-07-09 2021-03-31 13F/A-1 RAPID7 COM 753422104 1,066,379 -24,253 -2.22 79,563 -19.09 0.0046
2021-05-17 2021-03-31 13F RAPID7 COM 753422104 1,066,379 -24,253 79,563 0.0046
2021-02-16 2020-12-31 13F RAPID7 COM 753422104 1,090,632 31,195 2.94 98,331 51.56 0.0060
2020-11-10 2020-09-30 13F RAPID7 COM 753422104 1,059,437 -44,717 -4.05 64,880 15.17 0.0044
2020-08-14 2020-06-30 13F RAPID7 COM 753422104 1,104,154 58,822 5.63 56,334 24.37 0.0041
2020-06-19 2020-03-31 13F/A-1 RAPID7 COM 753422104 1,045,332 21,221 2.07 45,294 -21.05 0.0040
2020-05-11 2020-03-31 13F RAPID7 COM 753422104 1,045,332 21,221 45,294 3,977.7252
2020-02-06 2019-12-31 13F RAPID7 COM 753422104 1,024,111 16,842 1.67 57,371 25.48 0.0039
2019-11-14 2019-09-30 13F RAPID7 COM 753422104 1,007,269 18,849 1.91 45,720 -20.03 0.0034
2019-08-14 2019-06-30 13F RAPID7 COM 753422104 988,420 196,708 24.85 57,170 42.68 0.0043
2019-05-15 2019-03-31 13F RAPID7 COM 753422104 791,712 51,912 7.02 40,069 73.82 0.0031
2019-02-12 2018-12-31 13F RAPID7 COM 753422104 739,800 35,901 5.10 23,052 -11.28 0.0021
2018-11-09 2018-09-30 13F RAPID7 Common equity shares 753422104 703,899 74,041 11.76 25,984 46.18 0.0020
2018-08-14 2018-06-30 13F RAPID7 Common equity shares 753422104 629,858 125,731 24.94 17,775 37.90 0.0015
2018-05-15 2018-03-31 13F RAPID7 Common equity shares 753422104 504,127 137,035 37.33 12,890 88.26 0.0011
2018-02-14 2017-12-31 13F RAPID7 Common equity shares 753422104 367,092 17,014 4.86 6,847 11.13 0.0006
2017-11-14 2017-09-30 13F RAPID7 Common equity shares 753422104 350,078 13,137 3.90 6,161 8.68 0.0005
2017-08-14 2017-06-30 13F RAPID7 Common equity shares 753422104 336,941 34,995 11.59 5,669 25.48 0.0005
2017-05-15 2017-03-31 13F RAPID7 Common equity shares 753422104 301,946 5,014 1.69 4,518 24.98 0.0004
2017-02-09 2016-12-31 13F RAPID7 Common equity shares 753422104 296,932 2,758 0.94 3,615 -30.39 0.0003
2017-01-13 2016-09-30 13F/A-1 RAPID7 Common equity shares 753422104 294,174 18,807 6.83 5,193 49.87 0.0005
2016-11-14 2016-09-30 13F RAPID7 Common equity shares 753422104 294,174 5,193
2016-08-12 2016-06-30 13F RAPID7 Common equity shares 753422104 275,367 173,723 170.91 3,465 160.92 0.0004
2016-05-20 2016-03-31 13F/A-1 RAPID7 Common equity shares 753422104 101,644 2,962 3.00 1,328 -11.11 0.0001
2016-05-12 2016-03-31 13F RAPID7 Common equity shares 753422104 101,644 1,328
2016-02-16 2015-12-31 13F RAPID7 Common equity shares 753422104 98,682 28,953 41.52 1,494 -5.80 0.0002
2015-11-16 2015-09-30 13F RAPID7 Common equity shares 753422104 69,729 69,729 1,586 0.0002
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.