Quanterix Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGM:QTRX Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Role	Shares	Max Price
20 Aug 24	BuyUS$624,630	David Walt	Individual		47,000	US$13.29
13 Aug 24	BuyUS$207,100	Masoud Toloue	Individual		19,000	US$10.90

Insider Trading Volume

Insider Buying: QTRX insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of QTRX?
Owner Type	Number of Shares	Ownership Percentage
Individual Insiders	2,407,282	6.27%
General Public	2,798,989	7.29%
Institutions	33,172,762	86.4%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 69.4% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.9%	AllianceBernstein L.P.	3,414,794	US$51.8m	34.9%	0.01%
8.17%	BlackRock, Inc.	3,137,432	US$47.6m	0.48%	no data
5.33%	The Vanguard Group, Inc.	2,043,947	US$31.0m	-1.23%	no data
5%	Portolan Capital Management, LLC	1,918,030	US$29.1m	65%	2.01%
3.87%	David Walt	1,484,395	US$22.5m	3.13%	no data
3.41%	Columbia Management Investment Advisers, LLC	1,309,221	US$19.9m	58.8%	no data
3.34%	Emerald Advisers, LLC	1,282,464	US$19.5m	3.44%	0.39%
2.94%	Granahan Investment Management, LLC	1,129,491	US$17.1m	68.1%	0.57%
2.43%	Gilder Gagnon Howe & Co. LLC	932,799	US$14.2m	-20.5%	0.15%
2.31%	Dimensional Fund Advisors LP	887,546	US$13.5m	-2.2%	no data
2.28%	Easterly Investment Partners LLC	876,133	US$13.3m	26.5%	1.06%
2.19%	Geode Capital Management, LLC	840,436	US$12.7m	5.19%	no data
2.18%	Millennium Management LLC	834,847	US$12.7m	-63.1%	0.01%
2.13%	State Street Global Advisors, Inc.	818,393	US$12.4m	0.36%	no data
2.01%	Ashford Capital Management Inc	771,305	US$11.7m	-7.24%	1.3%
1.87%	Invesco Ltd.	718,812	US$10.9m	-9.79%	no data
1.65%	Baillie Gifford & Co.	633,001	US$9.6m	-0.07%	no data
1.58%	Teachers Insurance and Annuity Association-College Retirement Equities Fund	605,500	US$9.2m	6.76%	no data
1.49%	Tikvah Management LLC	571,619	US$8.7m	0%	2.41%
1.41%	UBS Asset Management AG	541,439	US$8.2m	42.8%	no data
1.08%	Pier Capital, LLC	414,542	US$6.3m	48.9%	0.82%
1.07%	Pura Vida Investments, LLC	409,334	US$6.2m	8.87%	6.8%
1%	Renaissance Technologies LLC	384,600	US$5.8m	-9.59%	0.01%
0.9%	Northern Trust Global Investments	346,848	US$5.3m	-3.22%	no data
0.86%	Charles Schwab Investment Management, Inc.	328,519	US$5.0m	0%	no data