Castle Biosciences
CSTL
CSTL
186 hedge funds and large institutions have $678M invested in Castle Biosciences in 2026 Q1 according to their latest regulatory filings, with 30 funds opening new positions, 71 increasing their positions, 61 reducing their positions, and 36 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
less ownership
Funds ownership: →
less funds holding
Funds holding: →
17% less first-time investments, than exits
New positions opened: 30 | Existing positions closed: 36
36% less capital invested
Capital invested by funds: $1.06B → $678M (-$384M)
50% less funds holding in top 10
Funds holding in top 10: 2 → 1 (-1)
Holders
186
Holding in Top 10
1
Calls
$1.92M
Puts
$437K
Top Buyers
| 1 | +$21.1M | |
| 2 | +$10.6M | |
| 3 | +$7.38M | |
| 4 |
SG Americas Securities
New York
|
+$7.32M |
| 5 |
Allianz Asset Management
Munich,
Germany
|
+$6.19M |
Top Sellers
| 1 | -$12.4M | |
| 2 | -$8.5M | |
| 3 | -$8.04M | |
| 4 |
B
Braidwell
Stamford,
Connecticut
|
-$6.89M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$6.39M |
