RPD in the 13F filings
Rapid7 Inc · CUSIP 753422104
- Quarter end
- 31 Dec 2025
- the date the book describes
- Filed
- 19 Feb 2026
- latest of these filings; the earliest 10 Feb 2026
- Managers listing it
- 27
- at least, of 95 tracked, among listed positions
- Comparable managers
- 92
- filed both Q3 2025 and Q4 2025; 2 listed it in both
- Shares listed
- 14,602,640
- combined, among listed positions
- Reported value
- $222m
- combined, at the quarter end
Among the 92 comparable managers: 20 buyers (opened or added shares) and 9 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,982,185.
Managers listing RPD in Q4 2025
27 of 27 holders
Largest increases and reductions, by shares
Increases
- Two Sigma Investments LPexisting position · 761,328 shares now+525,904
- Millennium Management LLCexisting position · 981,190 shares now+499,603
- Two Sigma Advisers LPexisting position · 485,399 shares now+396,599
- D. E. Shaw & Co.existing position · 429,672 shares now+277,784
- Marshall Wace LLPexisting position · 1,404,686 shares now+265,413
Reductions
- Citadel Advisors LLCexisting position · 316,169 shares now-398,969
- Balyasny Asset Management LLCexisting position · 48,737 shares now-279,452
- Squarepoint Ops LLCexisting position · 41,752 shares now-148,408
- Brevan Howard Capital Management LPexisting position · 48,910 shares now-37,057
- Point72 Asset Management LPexisting position · 443,655 shares now-24,745
New positions and exits
New (2)
Exited (3)
- Woodline Partners LPwas $2.7m
- Tudor Investment Corpwas $2.2m
- Freestone Grove Partners LPwas $437k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q3 2015 | 2 | $26m | n.a. | n.a. |
| Q4 2015 | 1 | $1.1m | n.a. | n.a. |
| Q3 2016 | 1 | $1.5m | n.a. | n.a. |
| Q4 2016 | 2 | $6.1m | n.a. | n.a. |
| Q1 2017 | 1 | $898k | n.a. | n.a. |
| Q2 2017 | 2 | $5.4m | n.a. | n.a. |
| Q3 2017 | 1 | $29m | n.a. | n.a. |
| Q4 2017 | 1 | $31m | n.a. | n.a. |
| Q1 2018 | 2 | $38m | n.a. | n.a. |
| Q2 2018 | 1 | $36m | n.a. | n.a. |
| Q3 2018 | 3 | $83m | n.a. | n.a. |
| Q4 2018 | 4 | $126m | n.a. | n.a. |
| Q1 2019 | 6 | $161m | n.a. | n.a. |
| Q2 2019 | 6 | $165m | n.a. | n.a. |
| Q3 2019 | 5 | $112m | n.a. | n.a. |
| Q4 2019 | 8 | $166m | n.a. | n.a. |
| Q1 2020 | 5 | $222m | n.a. | n.a. |
| Q2 2020 | 8 | $362m | n.a. | n.a. |
| Q3 2020 | 6 | $402m | n.a. | n.a. |
| Q4 2020 | 9 | $724m | n.a. | n.a. |
| Q1 2021 | 7 | $588m | n.a. | n.a. |
| Q2 2021 | 7 | $893m | n.a. | n.a. |
| Q3 2021 | 9 | $955m | n.a. | n.a. |
| Q4 2021 | 10 | $977m | n.a. | n.a. |
| Q1 2022 | 8 | $878m | n.a. | n.a. |
| Q2 2022 | 6 | $428m | n.a. | n.a. |
| Q3 2022 | 5 | $210m | n.a. | n.a. |
| Q4 2022 | 5 | $61m | n.a. | n.a. |
| Q1 2023 | 5 | $186m | n.a. | n.a. |
| Q2 2023 | 7 | $185m | n.a. | n.a. |
| Q3 2023 | 9 | $248m | n.a. | n.a. |
| Q4 2023 | 7 | $201m | 3 | 5 |
| Q1 2024 | 3 | $121m | 2 | 2 |
| Q2 2024 | 5 | $299m | 5 | 0 |
| Q3 2024 | 6 | $292m | 5 | 1 |
| Q4 2024 | 7 | $232m | 5 | 2 |
| Q1 2025 | 7 | $207m | 7 | 0 |
| Q2 2025 | 3 | $139m | 1 | 1 |
| Q3 2025 | 2 | $124m | 1 | 2 |
| Q4 2025 | 2 | $105m | 20 | 9 |
| Q1 2026 | 2 | $38m | 21 | 10 |
| Q2 2026 | 2 | $74m | 18 | 13 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
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How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own RPD, latest filings →Back to the 13F Explorer →