What does CUSIP 74766Q101 represent in this 13F holders report?

CUSIP 74766Q101 is the security identifier for QTRX - Quanterix Corp - Common Stock used to aggregate holder disclosures.

How many institutions held QTRX - Quanterix Corp - Common Stock in Q1 2021?

158 institutional investors reported QTRX - Quanterix Corp - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

Quanterix Corp - Common Stock (QTRX)

CUSIP: 74766Q101

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Common Stock
Shares outstanding: 46,692,271
Total 13F shares: 28,296,161
Share change: +4,926,038
Total reported value: $1,655,248,478
Put/Call ratio: 88%
Price per share: $58.47
Number of holders: 158
Value change: +$302,307,999
Number of buys: 111
Number of sells: 58

Quarterly Holders Quick Answers

What is CUSIP 74766Q101?
CUSIP 74766Q101 identifies QTRX - Quanterix Corp - 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: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 74766Q101:

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

Top shareholders of QTRX - Quanterix Corp - 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
GILDER GAGNON HOWE & CO LLC	13F	Company	6.6%	3,075,251	$142,999,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	3.7%	1,743,043	$81,050,000	—	31 Dec 2020	13F
FRONTIER CAPITAL MANAGEMENT CO LLC	13F	Company	3.2%	1,502,414	$69,862,000	—	31 Dec 2020	13F
MACQUARIE GROUP LTD	13F	Company	3.2%	1,485,177	$69,060,000	—	31 Dec 2020	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	2.8%	1,285,357	$59,769,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	2.7%	1,245,811	$57,930,000	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	2.5%	1,144,580	$53,229,000	—	31 Dec 2020	13F
MARSHALL WACE, LLP	13F	Company	2.3%	1,077,220	$50,091,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	1.7%	780,140	$36,277,000	—	31 Dec 2020	13F
Bellevue Group AG	13F	Company	1.5%	712,999	$33,154,000	—	31 Dec 2020	13F
ASHFORD CAPITAL MANAGEMENT INC	13F	Company	1%	466,513	$21,693,000	—	31 Dec 2020	13F
Tikvah Management LLC	13F	Company	0.93%	433,861	$20,175,000	—	31 Dec 2020	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	0.93%	433,241	$20,146,000	—	31 Dec 2020	13F
Monashee Investment Management LLC	13F	Company	0.86%	400,000	$18,600,000	—	31 Dec 2020	13F
ROYCE & ASSOCIATES LP	13F	Company	0.85%	395,879	$18,408,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	0.85%	395,015	$18,368,000	—	31 Dec 2020	13F
Granahan Investment Management, LLC	13F	Company	0.82%	382,376	$17,780,000	—	31 Dec 2020	13F
FMR LLC	13F	Company	0.77%	358,349	$16,663,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.76%	353,856	$16,454,000	—	31 Dec 2020	13F
LORD, ABBETT & CO. LLC	13F	Company	0.75%	347,916	$16,178,000	—	31 Dec 2020	13F
PLATINUM INVESTMENT MANAGEMENT LTD	13F	Company	0.68%	318,410	$14,806,000	—	31 Dec 2020	13F
Clearbridge Investments, LLC	13F	Company	0.61%	284,836	$13,245,000	—	31 Dec 2020	13F
KORNITZER CAPITAL MANAGEMENT INC /KS	13F	Company	0.61%	283,580	$13,186,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	0.6%	279,742	$13,007,000	—	31 Dec 2020	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.59%	275,084	$12,791,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.53%	248,198	$11,541,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	0.51%	240,147	$11,167,000	—	31 Dec 2020	13F
CWM, LLC	13F	Company	0.3%	140,757	$8,257,000	—	31 Dec 2020	13F
CAAS CAPITAL MANAGEMENT LP	13F	Company	0.35%	164,148	$7,633,000	—	31 Dec 2020	13F
SILVERCREST ASSET MANAGEMENT GROUP LLC	13F	Company	0.33%	152,511	$7,092,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.31%	146,835	$6,828,000	—	31 Dec 2020	13F
PURA VIDA INVESTMENTS, LLC	13F	Company	0.3%	141,175	$6,565,000	—	31 Dec 2020	13F
Marshall Wace North America L.P.	13F	Company	0.29%	136,463	$6,346,000	—	31 Dec 2020	13F
BRIDGER MANAGEMENT, LLC	13F	Company	0.29%	135,685	$6,309,000	—	31 Dec 2020	13F
BANK OF MONTREAL /CAN/	13F	Company	0.21%	97,499	$5,152,000	—	31 Dec 2020	13F
NEXT CENTURY GROWTH INVESTORS LLC	13F	Company	0.22%	101,537	$4,721,000	—	31 Dec 2020	13F
MARATHON CAPITAL MANAGEMENT	13F	Company	0.2%	92,645	$4,307,000	—	31 Dec 2020	13F
J.P. Morgan Private Wealth Advisors LLC	13F	Company	0.18%	85,784	$3,989,000	—	31 Dec 2020	13F
MOODY ALDRICH PARTNERS LLC	13F	Company	0.18%	83,284	$3,873,000	—	31 Dec 2020	13F
Laurion Capital Management LP	13F	Company	0.16%	74,576	$3,468,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	0.15%	72,205	$3,358,000	—	31 Dec 2020	13F
FIRST TRUST ADVISORS LP	13F	Company	0.14%	67,320	$3,130,000	—	31 Dec 2020	13F
Global IMC LLC	13F	Company	0.13%	60,555	$2,816,000	—	31 Dec 2020	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.12%	56,900	$2,646,000	—	31 Dec 2020	13F
TD ASSET MANAGEMENT INC	13F	Company	0.12%	54,979	$2,557,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.11%	50,811	$2,363,000	—	31 Dec 2020	13F
Swiss National Bank	13F	Company	0.11%	49,800	$2,316,000	—	31 Dec 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.1%	46,755	$2,174,000	—	31 Dec 2020	13F
Valmark Advisers, Inc.	13F	Company	0.1%	46,133	$2,145,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.1%	45,335	$2,108,000	—	31 Dec 2020	13F

Institutional Holders of Quanterix Corp - Common Stock (QTRX) as of Q1 2021

As of 31 Mar 2021, Quanterix Corp - Common Stock (QTRX) was held by 158 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 28,296,161 shares. The largest 10 holders included GILDER GAGNON HOWE & CO LLC, PRICE T ROWE ASSOCIATES INC /MD/, BlackRock Inc., VANGUARD GROUP INC, MACQUARIE GROUP LTD, LORD, ABBETT & CO. LLC, MARSHALL WACE, LLP, AMERIPRISE FINANCIAL INC, FRONTIER CAPITAL MANAGEMENT CO LLC, and VICTORY CAPITAL MANAGEMENT INC. This page lists 158 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

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

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

139

Q1 2021 holders

158

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 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.