Security key
74766Q101
Quanterix Corp - Common Stock, $0.001 par value per share (QTRX)
CUSIP: 74766Q101
Q4 2023 13F Holders as of 31 Dec 2023
- Security type / class
- Equity / Common Stock, $0.001 par value per share
- Total 13F shares
- 31,606,543
- Total 13F value
- $864,126,575
- Share change
- -902,699
- Put/Call ratio
- 94%
- SEC-reported price per share
- $27.34
- Number of holders
- 171
- Value change
- -$24,356,227
- Number of buys
- 79
- Number of sells
- 74
- Shares outstanding
- 47,133,168
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2023
Institutions
171
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 Stock, $0.001 par value per share (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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2023
13F
Lead comparable stake: 6.2%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 6.2%.
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 BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
6.2%
VANGUARD GROUP INC
4.2%
MILLENNIUM MANAGEMENT LLC
4.2%
Portolan Capital Management, LLC
3.6%
Camber Capital Management LP
2.7%
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 |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
6.2%
|
$79,307,259
2,922,154 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
4.2%
|
$54,206,586
1,997,295 shares
|
— | 30 Sep 2023 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
4.2%
|
$53,734,785
1,979,911 shares
|
— | 30 Sep 2023 |
| Portolan Capital Management, LLC |
13F
Company
|
3.6%
|
$45,482,243
1,675,838 shares
|
— | 30 Sep 2023 |
| Camber Capital Management LP |
13F
Company
|
2.7%
|
$34,604,000
1,275,000 shares
|
— | 30 Sep 2023 |
| GILDER GAGNON HOWE & CO LLC |
13F
Company
|
2.6%
|
$33,279,196
1,226,205 shares
|
— | 30 Sep 2023 |
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 Q4 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
171
Shares
31,606,543
Rows available
171
| 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 Q4 2023 vs Q3 2023 Across Filers
Q3 2023 holders
157
Q4 2023 holders
171
Holder diff
14
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend