What does CUSIP 753422104 represent in this 13F holders report?

CUSIP 753422104 is the security identifier for RPD - Rapid7, Inc. - Common Stock used to aggregate holder disclosures.

How many institutions held RPD - Rapid7, Inc. - Common Stock in Q4 2018?

192 institutional investors reported RPD - Rapid7, Inc. - Common Stock for Q4 2018. Use the holders table for investor-level position and value details.

Rapid7, Inc. - Common Stock (RPD)

CUSIP: 753422104

Q4 2018 13F Holders as of 31 Dec 2018

Type / Class: Equity / Common Stock
Shares outstanding: 65,954,874
Total 13F shares: 41,337,497
Share change: +1,426,357
Total reported value: $1,288,067,067
Put/Call ratio: 13%
Price per share: $31.16
Number of holders: 192
Value change: +$29,537,868
Number of buys: 99
Number of sells: 76

Quarterly Holders Quick Answers

What is CUSIP 753422104?
CUSIP 753422104 identifies RPD - Rapid7, Inc. - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2019
Previous quarter: Q3 2018

Recent filing periods for CUSIP 753422104:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of RPD - Rapid7, Inc. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
VANGUARD GROUP INC	13F	Company	5%	3,281,950	$121,170,000	—	30 Sep 2018	13F
BlackRock Finance, Inc.	13F	Company	4%	2,619,925	$96,727,000	—	30 Sep 2018	13F
BAIN CAPITAL VENTURE INVESTORS, LLC	13F	Company	3.3%	2,182,713	$80,586,000	—	30 Sep 2018	13F
WASATCH ADVISORS LP	13F	Company	2.5%	1,664,620	$61,458,000	—	30 Sep 2018	13F
Bank of New York Mellon Corp	13F	Company	2.3%	1,509,007	$55,711,000	—	30 Sep 2018	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	1.9%	1,226,757	$45,292,000	—	30 Sep 2018	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	1.8%	1,168,823	$43,152,000	—	30 Sep 2018	13F
FEDERATED HERMES, INC.	13F	Company	1.7%	1,141,056	$42,128,000	—	30 Sep 2018	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	1.6%	1,085,596	$40,080,000	—	30 Sep 2018	13F
Point72 Asset Management, L.P.	13F	Company	1.6%	1,050,255	$38,775,000	—	30 Sep 2018	13F
Technology Crossover Management VII, Ltd.	13F	Company	1.6%	1,038,043	$38,325,000	—	30 Sep 2018	13F
Legal & General Group Plc	13F	Company	1.3%	872,983	$32,231,000	—	30 Sep 2018	13F
LOOMIS SAYLES & CO L P	13F	Company	1.3%	866,355	$31,986,000	—	30 Sep 2018	13F
EMERALD ADVISERS, LLC	13F	Company	1.3%	865,896	$31,969,000	—	30 Sep 2018	13F
Garelick Capital Partners, LP	13F	Company	1.3%	840,684	$31,038,000	—	30 Sep 2018	13F
EMERALD MUTUAL FUND ADVISERS TRUST	13F	Company	1.2%	817,270	$30,174,000	—	30 Sep 2018	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	1.2%	810,991	$29,942,000	—	30 Sep 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	1.2%	780,557	$28,818,000	—	30 Sep 2018	13F
GW&K Investment Management, LLC	13F	Company	1.1%	727,234	$26,849,000	—	30 Sep 2018	13F
STATE STREET CORP	13F	Company	1.1%	703,899	$25,984,000	—	30 Sep 2018	13F
COLUMBUS CIRCLE INVESTORS	13F	Company	1.1%	701,831	$25,912,000	—	30 Sep 2018	13F
Clearbridge Investments, LLC	13F	Company	0.84%	557,029	$20,566,000	—	30 Sep 2018	13F
BARCLAYS PLC	13F	Company	0.83%	547,213	$20,203,000	—	30 Sep 2018	13F
CITADEL ADVISORS LLC	13F	Company	0.72%	474,178	$17,507,000	—	30 Sep 2018	13F
NORTHERN TRUST CORP	13F	Company	0.71%	468,166	$17,284,000	—	30 Sep 2018	13F
Hood River Capital Management LLC	13F	Company	0.69%	457,783	$16,901,000	—	30 Sep 2018	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.68%	450,189	$16,621,000	—	30 Sep 2018	13F
SQN Investors LP	13F	Company	0.66%	434,576	$16,045,000	—	30 Sep 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.66%	433,892	$16,018,000	—	30 Sep 2018	13F
DEUTSCHE BANK AG\	13F	Company	0.65%	428,288	$15,813,000	—	30 Sep 2018	13F
ETF MANAGERS GROUP, LLC	13F	Company	0.63%	415,246	$15,331,000	—	30 Sep 2018	13F
BLAIR WILLIAM & CO/IL	13F	Company	0.61%	402,804	$14,872,000	—	30 Sep 2018	13F
Invesco Ltd.	13F	Company	0.55%	363,327	$13,414,000	—	30 Sep 2018	13F
CASTLEARK MANAGEMENT LLC	13F	Company	0.51%	335,777	$12,397,000	—	30 Sep 2018	13F
CHARTWELL INVESTMENT PARTNERS, LLC	13F	Company	0.46%	302,989	$11,186,000	—	30 Sep 2018	13F
OSTERWEIS CAPITAL MANAGEMENT INC	13F	Company	0.46%	301,230	$11,121,000	—	30 Sep 2018	13F
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC	13F	Company	0.43%	282,797	$10,441,000	—	30 Sep 2018	13F
Portolan Capital Management, LLC	13F	Company	0.43%	281,577	$10,396,000	—	30 Sep 2018	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.41%	270,500	$9,987,000	—	30 Sep 2018	13F
Granahan Investment Management, LLC	13F	Company	0.39%	257,574	$9,510,000	—	30 Sep 2018	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.37%	245,202	$9,052,000	—	30 Sep 2018	13F
ROYAL BANK OF CANADA	13F	Company	0.34%	225,396	$8,322,000	—	30 Sep 2018	13F
Polar Capital LLP	13F	Company	0.34%	221,703	$8,185,000	—	30 Sep 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.32%	214,035	$7,903,000	—	30 Sep 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.32%	208,297	$7,691,000	—	30 Sep 2018	13F
Cortina Asset Management, LLC	13F	Company	0.32%	207,764	$7,671,000	—	30 Sep 2018	13F
BANK OF MONTREAL /CAN/	13F	Company	0.29%	190,465	$7,032,000	—	30 Sep 2018	13F
D. E. Shaw & Co., Inc.	13F	Company	0.28%	185,315	$6,842,000	—	30 Sep 2018	13F
Allianz Asset Management GmbH	13F	Company	0.28%	182,437	$6,736,000	—	30 Sep 2018	13F
NICHOLAS COMPANY, INC.	13F	Company	0.26%	173,335	$6,399,000	—	30 Sep 2018	13F

Institutional Holders of Rapid7, Inc. - Common Stock (RPD) as of Q4 2018

As of 31 Dec 2018, Rapid7, Inc. - Common Stock (RPD) was held by 192 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 41,337,497 shares. The largest 10 holders included Vanguard Group Inc, BlackRock Inc., WASATCH ADVISORS INC, SQN Investors LP, ALLIANCEBERNSTEIN L.P., Bank of New York Mellon Corp, Point72 Asset Management, L.P., FEDERATED INVESTORS INC /PA/, MASSACHUSETTS FINANCIAL SERVICES CO /MA/, and Technology Crossover Management VII, Ltd.. This page lists 192 institutional shareholders reporting positions in this security for the Q4 2018 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2018 vs Q3 2018 Across Filers

Q3 2018 holders

173

Q4 2018 holders

192

Holder diff

Investor	Q3 2018 Shares	Q4 2018 Shares	Share Diff	Share Chg %	Q3 2018 Value $	Q4 2018 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.