Rapid7, Inc.
MX ˙ BMV ˙ US7534221046
SecurityMX:RPD / Rapid7, Inc.
InstitutionJacobs Levy Equity Management, Inc
Latest Disclosed Ownership692,301 shares
Latest Disclosed Value $ 3,814,579
Jacobs Levy Equity Management, Inc reports 42.08% decrease in ownership of RPD / Rapid7, Inc.

On May 15, 2026 - Jacobs Levy Equity Management, Inc filed a 13F-HR form disclosing ownership of 692,301 shares of Rapid7, Inc. (MX:RPD) valued at $3,814,579 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,195,228 shares of Rapid7, Inc.. This represents a change in shares of -42.08% 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)
2026-05-15 2026-03-31 13F RAPID7 COM 753422104 692,301 -502,927 -42.08 3,815 -79.01 0.0160
2026-02-13 2025-12-31 13F RAPID7 COM 753422104 1,195,228 51,053 4.46 18,167 -15.32 0.0702
2025-11-17 2025-09-30 13F RAPID7 COM 753422104 1,144,175 122,217 11.96 21,453 -9.24 0.0852
2025-08-14 2025-06-30 13F RAPID7 COM 753422104 1,021,958 576,438 129.39 23,638 100.14 0.0927
2025-05-15 2025-03-31 13F RAPID7 COM 753422104 445,520 445,520 11,811 0.0468
2023-11-16 2023-09-30 13F RAPID7 COM 753422104 0 -7,185 -100.00 0 -100.00
2023-08-14 2023-06-30 13F RAPID7 COM 753422104 7,185 -15,074 -67.72 325 -68.17 0.0019
2023-05-15 2023-03-31 13F RAPID7 COM 753422104 22,259 7,271 48.51 1,022 100.59 0.0063
2023-02-14 2022-12-31 13F RAPID7 COM 753422104 14,988 14,988 509 0.0034
2021-08-16 2021-06-30 13F RAPID7 COM 753422104 0 -3,821 -100.00 0 -100.00
2021-05-17 2021-03-31 13F RAPID7 COM 753422104 3,821 -37,044 -90.65 285 -92.26 0.0022
2021-02-16 2020-12-31 13F RAPID7 COM 753422104 40,865 -7,000 -14.62 3,684 25.69 0.0323
2020-11-16 2020-09-30 13F RAPID7 COM 753422104 47,865 -6,498 -11.95 2,931 5.66 0.0304
2020-08-17 2020-06-30 13F RAPID7 COM 753422104 54,363 -16,581 -23.37 2,774 -9.76 0.0300
2020-05-15 2020-03-31 13F RAPID7 COM 753422104 70,944 52,064 275.76 3,074 190.55 0.0395
2020-02-14 2019-12-31 13F RAPID7 COM 753422104 18,880 -10 -0.05 1,058 23.45 0.0104
2019-11-14 2019-09-30 13F RAPID7 COM 753422104 18,890 -114,093 -85.80 857 -88.86 0.0105
2019-08-13 2019-06-30 13F RAPID7 COM 753422104 132,983 -29,797 -18.31 7,692 -6.63 0.1064
2019-05-14 2019-03-31 13F RAPID7 COM 753422104 162,780 25,480 18.56 8,238 92.57 0.1189
2019-02-14 2018-12-31 13F RAPID7 COM 753422104 137,300 -2,410 -1.73 4,278 -17.06 0.0752
2018-11-14 2018-09-30 13F RAPID7 COM 753422104 139,710 -29,931 -17.64 5,158 7.75 0.0732
2018-08-14 2018-06-30 13F RAPID7 COM 753422104 169,641 113,844 204.03 4,787 235.46 0.0752
2018-05-15 2018-03-31 13F RAPID7 COM 753422104 55,797 -119,133 -68.10 1,427 -56.28 0.0237
2018-02-13 2017-12-31 13F RAPID7 COM 753422104 174,930 17,700 11.26 3,264 17.96 0.0574
2017-11-14 2017-09-30 13F RAPID7 COM 753422104 157,230 23,180 17.29 2,767 22.65 0.0538
2017-11-09 2017-06-30 13F/A-1 RAPID7 COM 753422104 134,050 -17,900 -11.78 2,256 -0.88 0.0482
2017-08-14 2017-06-30 13F RAPID7 COM 753422104 134,050 -17,900 2,256
2017-05-12 2017-03-31 13F RAPID7 COM 753422104 151,950 23,400 18.20 2,276 45.52 0.0460
2017-02-14 2016-12-31 13F RAPID7 COM 753422104 128,550 112,123 682.55 1,564 439.31 0.0302
2016-11-14 2016-09-30 13F RAPID7 COM 753422104 16,427 -15,773 -48.98 290 -28.40 0.0052
2016-08-15 2016-06-30 13F RAPID7 COM 753422104 32,200 -18,100 -35.98 405 -38.36 0.0084
2016-05-16 2016-03-31 13F RAPID7 COM 753422104 50,300 50,300 657 0.0139
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.