Position in QTRX
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$10,369,296
-$18,413,221 QoQ
Shares Held
2,945,823
-34.9% QoQ
Ownership
6.25%
of shares outstanding
% of Portfolio
0.56%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
20 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in QTRX Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026Portolan Capital Management, LLC holds $22,221,484 across 5 Medical Devices names. QTRX ranks #1 (46.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | QTRX |
Quanterix Corp
This page
|
2,945,823 | $10,369,296 | |
| 2 | PRCT |
PROCEPT BioRobotics Corp
|
251,716 | $6,295,417 | |
| 3 | BIO |
Bio-Rad Laboratories, Inc.
|
14,173 | $3,950,723 | |
| 4 | TMDX |
TransMedics Group, Inc.
|
10,688 | $1,062,494 | |
| 5 | ESTA |
Establishment Labs Holdings Inc.
|
9,573 | $543,554 |
All Filings in QTRX
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22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $10,369,296 | 2,945,823 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $28,782,517 | 4,525,553 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $23,130,990 | 4,259,851 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $24,163,586 | 3,633,622 | Shares | Sole | 2025-08-13 | |
| 2025-06-30 | $24,163,586 | 3,633,622 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $19,291,714 | 2,963,397 | Shares | Sole | 2025-05-15 | |
| 2025-03-31 | $19,291,714 | 2,963,397 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $27,508,569 | 2,587,824 | Shares | Sole | 2025-02-13 | |
| 2024-09-30 | $32,668,090 | 2,520,686 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $25,337,176 | 1,918,030 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $27,396,251 | 1,162,829 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $35,462,440 | 1,297,090 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $45,482,243 | 1,675,838 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $31,944,848 | 1,416,623 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $8,674,958 | 769,739 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $11,941,816 | 862,225 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $8,362,560 | 758,853 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $6,182,556 | 381,875 | Shares | Sole | 2022-08-15 | |
| 2020-12-31 | $1,811,500 | 38,957 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $1,616,146 | 47,900 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $4,073,413 | 148,719 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $6,337,650 | 345,000 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||