Position in QTRX
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$8,205,010
-$2,164,286 QoQ
Shares Held
1,899,308
-35.5% QoQ
Ownership
4.02%
of shares outstanding
% of Portfolio
0.31%
of 13F equity value
Holder Rank
#4
of 132 holders
Holding Since
Mar 2020
21 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in QTRX Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Jun 30, 2026Portolan Capital Management, LLC holds $45,549,880 across 5 Medical Devices names. QTRX ranks #3 (18.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | GEHC |
GE HealthCare Technologies Inc.
|
222,393 | $14,235,375 | |
| 2 | BIO |
Bio-Rad Laboratories, Inc.
|
42,620 | $12,513,658 | |
| 3 | QTRX |
Quanterix Corp
This page
|
1,899,308 | $8,205,010 | |
| 4 | TMDX |
TransMedics Group, Inc.
|
82,354 | $5,469,952 | |
| 5 | PRCT |
PROCEPT BioRobotics Corp
|
227,010 | $5,125,885 |
All Filings in QTRX
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24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $8,205,010 | 1,899,308 | Shares | Sole | 2026-08-14 | |
| 2026-06-30 | $8,205,010 | 1,899,308 | Shares | Sole | 2026-08-14 | |
| 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. | ||||||