Position in CSTL
as of Mar 31, 2026
· filed Apr 7, 2026
Position Value
$244,149
-$154,031 QoQ
Shares Held
9,945
-2.8% QoQ
Ownership
0.033%
of shares outstanding
% of Portfolio
0.24%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2024
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CSTL Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026Green Alpha Advisors, LLC holds $2,374,202 across 7 Diagnostics & Research names. CSTL ranks #6 (10.3% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ILMN |
Illumina, Inc.
|
4,392 | $541,357 | |
| 2 | PSNL |
Personalis, Inc.
|
66,409 | $423,025 | |
| 3 | BLLN |
BillionToOne, Inc.
|
5,168 | $407,961 | |
| 4 | GRAL |
GRAIL, Inc.
|
5,192 | $268,322 | |
| 5 | TWST |
Twist Bioscience Corp
|
5,303 | $251,998 | |
| 6 | CSTL |
Castle Biosciences Inc
This page
|
9,945 | $244,149 | |
| 7 | GH |
Guardant Health, Inc.
|
2,570 | $237,390 |
All Filings in CSTL
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $244,149 | 9,945 | Shares | Sole | 2026-04-07 | |
| 2025-12-31 | $398,180 | 10,236 | Shares | Sole | 2026-01-07 | |
| 2025-09-30 | $217,180 | 9,538 | Shares | Sole | 2025-10-15 | |
| 2024-12-31 | $248,564 | 9,327 | Shares | Sole | 2025-01-13 | |
| No filing history on record for this holder in this stock. | ||||||