래피드세븐(주)
MX ˙ BMV ˙ US7534221046
SecurityMX:RPD / Rapid7, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership847,962 shares
Latest Disclosed Value $ 4,672,275
Morgan Stanley reports 9.00% increase in ownership of RPD / Rapid7, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 847,962 shares of Rapid7, Inc. (MX:RPD) valued at $4,672,275 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 777,944 shares of Rapid7, Inc.. This represents a change in shares of 9.00% 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)
2026-05-15 2026-03-31 13F RAPID7 COM 753422104 847,962 70,018 9.00 4,672 -60.49 0.0003
2026-05-27 2025-12-31 13F/A-1 RAPID7 COM 753422104 777,944 285,160 57.87 11,825 27.98 0.0001
2026-02-13 2025-12-31 13F RAPID7 COM 753422104 777,944 285,160 11,825 0.0007
2026-05-27 2025-09-30 13F/A-1 RAPID7 COM 753422104 492,784 -18,114 -3.55 9,240 -21.82 0.0006
2025-11-14 2025-09-30 13F RAPID7 COM 753422104 492,784 -18,114 9,240 0.0006
2025-08-15 2025-06-30 13F RAPID7 COM 753422104 510,898 -20,090 -3.78 11,817 -16.05 0.0008
2025-05-15 2025-03-31 13F RAPID7 COM 753422104 530,988 66,697 14.37 14,077 -24.64 0.0010
2025-05-15 2024-12-31 13F/A-1 RAPID7 COM 753422104 464,291 -41,879 -8.27 18,678 -7.49 0.0013
2025-02-14 2024-12-31 13F RAPID7 COM 753422104 464,291 -41,879 18,678 0.0013
2025-05-14 2024-09-30 13F/A-2 RAPID7 COM 753422104 506,170 154,029 43.74 20,191 32.63 0.0015
2025-02-14 2024-09-30 13F/A-1 RAPID7 COM 753422104 506,170 154,029 20,191 0.0015
2024-11-14 2024-09-30 13F RAPID7 COM 753422104 506,170 154,029 20,191 0.0002
2025-05-14 2024-06-30 13F/A-2 RAPID7 COM 753422104 352,141 -11,369 -3.13 15,223 -14.60 0.0012
2024-10-17 2024-06-30 13F/A-1 RAPID7 COM 753422104 352,141 -11,369 15,223 0.0012
2024-08-14 2024-06-30 13F RAPID7 COM 753422104 352,141 -11,369 15,223 0.0012
2024-10-17 2024-03-31 13F/A-2 RAPID7 COM 753422104 363,510 -41,411 -10.23 17,827 -22.90 0.0014
2024-08-16 2024-03-31 13F/A-1 RAPID7 COM 753422104 363,510 -41,411 17,827 0.0002
2024-05-15 2024-03-31 13F RAPID7 COM 753422104 363,510 -41,411 17,827 0.0014
2024-08-16 2023-12-31 13F/A-1 RAPID7 COM 753422104 404,921 12,336 3.14 23,121 28.65 0.0020
2024-02-13 2023-12-31 13F RAPID7 COM 753422104 404,921 12,336 23,121 0.0020
2023-11-15 2023-09-30 13F RAPID7 COM 753422104 392,585 -74,128 -15.88 17,973 -14.95 0.0018
2023-08-14 2023-06-30 13F RAPID7 COM 753422104 466,713 -47,796 -9.29 21,133 -10.54 0.0021
2023-05-15 2023-03-31 13F RAPID7 COM 753422104 514,509 -88,849 -14.73 23,621 15.21 0.0025
2023-02-14 2022-12-31 13F RAPID7 COM 753422104 603,358 294,778 95.53 20,502 54.87 0.0023
2022-11-14 2022-09-30 13F RAPID7 COM 753422104 308,580 -30,244 -8.93 13,238 -41.51 0.0018
2022-10-27 2022-06-30 13F/A-1 RAPID7 COM 753422104 338,824 193,333 132.88 22,634 39.85 0.0029
2022-08-15 2022-06-30 13F RAPID7 COM 753422104 338,824 193,333 22,634 0.0029
2022-10-27 2022-03-31 13F/A-1 RAPID7 COM 753422104 145,491 -10,244 -6.58 16,185 -11.69 0.0022
2022-05-13 2022-03-31 13F RAPID7 COM 753422104 145,491 -10,244 16,185 0.0022
2022-02-14 2021-12-31 13F RAPID7 COM 753422104 155,735 -123,952 -44.32 18,328 -42.02 0.0023
2021-11-15 2021-09-30 13F RAPID7 COM 753422104 279,687 -3,055 -1.08 31,610 18.14 0.0043
2021-08-23 2021-06-30 13F/A-1 RAPID7 COM 753422104 282,742 183,007 183.49 26,756 259.58 0.0035
2021-08-16 2021-06-30 13F RAPID7 COM 753422104 282,742 183,007 26,756 0.0007
2021-05-17 2021-03-31 13F RAPID7 COM 753422104 99,735 -112,075 -52.91 7,441 -61.03 0.0011
2021-02-16 2020-12-31 13F RAPID7 COM 753422104 211,810 128,821 155.23 19,096 275.76 0.0029
2020-11-13 2020-09-30 13F RAPID7 COM 753422104 82,989 25,661 44.76 5,082 73.74 0.0010
2020-08-14 2020-06-30 13F RAPID7 COM 753422104 57,328 18,468 47.52 2,925 73.69 0.0006
2020-05-26 2020-03-31 13F/A-1 RAPID7 COM 753422104 38,860 -164,778 -80.92 1,684 -85.24 0.0005
2020-05-15 2020-03-31 13F RAPID7 COM 753422104 38,860 -164,778 1,684 129.3663
2020-02-14 2019-12-31 13F RAPID7 COM 753422104 203,638 -88,371 -30.26 11,408 -13.93 0.0027
2019-11-14 2019-09-30 13F RAPID7 COM 753422104 292,009 236,382 424.94 13,255 311.90 0.0035
2019-08-14 2019-06-30 13F RAPID7 COM 753422104 55,627 23,758 74.55 3,218 99.63 0.0009
2019-05-15 2019-03-31 13F RAPID7 COM 753422104 31,869 -50,361 -61.24 1,612 -37.08 0.0005
2019-02-14 2018-12-31 13F RAPID7 COM 753422104 82,230 -5,623 -6.40 2,562 -21.02 0.0008
2019-04-23 2018-09-30 13F/A-2 RAPID7 COM 753422104 87,853 -73,217 -45.46 3,244 -28.64 0.0008
2018-11-20 2018-09-30 13F/A-1 RAPID7 COM 753422104 87,853 0 3,244 0.0008
2018-11-14 2018-09-30 13F RAPID7 COM 753422104 87,853 -73,217 3,244
2019-04-23 2018-06-30 13F/A-1 RAPID7 COM 753422104 161,070 6,479 4.19 4,546 15.03 0.0012
2018-08-14 2018-06-30 13F RAPID7 COM 753422104 161,070 6,479 4,546
2019-04-23 2018-03-31 13F/A-1 RAPID7 COM 753422104 154,591 59,287 62.21 3,952 122.27 0.0011
2018-05-14 2018-03-31 13F RAPID7 COM 753422104 154,591 59,287 3,952
2019-04-23 2017-12-31 13F/A-1 RAPID7 COM 753422104 95,304 -27,008 -22.08 1,778 -17.38 0.0005
2018-02-14 2017-12-31 13F RAPID7 COM 753422104 95,304 -27,008 1,778
2017-11-14 2017-09-30 13F RAPID7 COM 753422104 122,312 64,898 113.04 2,152 122.77 0.0006
2017-08-11 2017-06-30 13F RAPID7 COM 753422104 57,414 -10,817 -15.85 966 -5.48 0.0003
2017-05-22 2017-03-31 13F/A-1 RAPID7 COM 753422104 68,231 -26,933 -28.30 1,022 -11.74 0.0003
2017-05-12 2017-03-31 13F RAPID7 COM 753422104 68,231 1,022
2017-02-22 2016-12-31 13F/A-1 RAPID7 COM 753422104 95,164 50,466 112.90 1,158 46.77 0.0004
2017-02-13 2016-12-31 13F RAPID7 COM 753422104 95,164 1,158
2016-11-10 2016-09-30 13F RAPID7 COM 753422104 44,698 29,378 191.76 789 310.94 0.0003
2016-08-12 2016-06-30 13F RAPID7 COM 753422104 15,320 6,610 75.89 192 68.42 0.0001
2016-05-12 2016-03-31 13F RAPID7 COM 753422104 8,710 4,947 131.46 114 100.00 0.0000
2016-02-09 2015-12-31 13F RAPID7 COM 753422104 3,763 -11,546 -75.42 57 -83.57 0.0000
2016-02-08 2015-09-30 13F/A-1 RAPID7 COM 753422104 15,309 15,309 347 0.0001
2015-11-09 2015-09-30 13F RAPID7 COM 753422104 15,309 347 0.0001
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.