Position in GH
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,307,497
-$9,324,051 QoQ
Shares Held
14,155
-86.4% QoQ
Ownership
0.011%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in GH Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026Portolan Capital Management, LLC holds $56,950,930 across 8 Diagnostics & Research names. GH ranks #8 (2.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CSTL |
Castle Biosciences Inc
|
1,350,283 | $33,149,447 | |
| 2 | WGS |
GeneDx Holdings Corp.
|
102,575 | $6,587,366 | |
| 3 | CDNA |
CareDx, Inc.
|
340,352 | $5,908,510 | |
| 4 | PSNL |
Personalis, Inc.
|
736,713 | $4,692,861 | |
| 5 | NTRA |
Natera, Inc.
|
11,418 | $2,283,485 | |
| 6 | FLGT |
Fulgent Genetics, Inc.
|
106,642 | $1,695,607 | |
| 7 | RDNT |
RadNet, Inc.
|
23,728 | $1,326,157 | |
| 8 | GH |
Guardant Health, Inc.
This page
|
14,155 | $1,307,497 |
All Filings in GH
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,307,497 | 14,155 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $10,631,548 | 104,088 | Shares | Sole | 2026-02-17 | |
| No filing history on record for this holder in this stock. | ||||||