Security key
74766Q101
- Security type / class
- Equity / Common
- Total 13F shares
- 9,409,606
- Total 13F value
- $243,046,269
- Share change
- +43,622
- SEC-reported price per share
- $25.83
- Number of holders
- 67
- Value change
- +$4,038,727
- Number of buys
- 39
- Number of sells
- 19
- Shares outstanding
- 47,468,362
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2019
Institutions
67
Top holders
10
QTRX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Quanterix Corp SEC filings
Quanterix Corp company facts
Quanterix Corp 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 74766Q101
Recent filing periods:
Ownership snapshot
Top reported holders of QTRX - Quanterix Corp - Common (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BAIN CAPITAL VENTURE INVE...
Disclosed value leader
BAIN CAPITAL VENTURE INVE...
Comparable rows
15/15
Latest evidence
31 Dec 2018
13F
Lead comparable stake: 4.5%
Showing 1-6 of 15 holder rows.
Quick read
BAIN CAPITAL VENTURE INVESTORS, LLC leads the comparable SEC ownership view at 4.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BAIN CAPITAL VENTURE INVESTORS, LLC's linked filing trail.
Comparable ownership
Top 5
BAIN CAPITAL VENTURE INVESTORS, LLC
4.5%
Flagship Pioneering, LLC
4.3%
FMR LLC
2.3%
PRICE T ROWE ASSOCIATES INC /MD/
2.1%
GILDER GAGNON HOWE & CO LLC
2.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BAIN CAPITAL VENTURE INVESTORS, LLC |
13F
Company
|
4.5%
|
$39,112,000
2,136,085 shares
|
— | 31 Dec 2018 |
| Flagship Pioneering, LLC |
13F
Company
|
4.3%
|
$37,178,000
2,030,495 shares
|
— | 31 Dec 2018 |
| FMR LLC |
13F
Company
|
2.3%
|
$19,841,000
1,083,647 shares
|
— | 31 Dec 2018 |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
Company
|
2.1%
|
$18,155,000
991,561 shares
|
— | 31 Dec 2018 |
| GILDER GAGNON HOWE & CO LLC |
13F
Company
|
2.1%
|
$17,983,000
982,157 shares
|
— | 31 Dec 2018 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
1.5%
|
$13,274,000
724,979 shares
|
— | 31 Dec 2018 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
67
Shares
9,409,606
Rows available
67
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2019 vs Q1 2019 Across Filers
Q1 2019 holders
67
Q1 2019 holders
67
Holder diff
0
| Investor | Q1 2019 Shares | Q1 2019 Shares | Share Diff | Share Chg % | Q1 2019 value | Q1 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend