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MILLENNIUM MANAGEMENT LLC

Position in CSTL — Castle Biosciences Inc

CIK 1273087 NEW YORK, NY

Position in CSTL

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$8,673,981
-$3,342,773 QoQ
Shares Held
353,319
+14.4% QoQ
Ownership
1.16%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSTL Over Time

Shares Held

Position Value (USD)

Derivatives in CSTL

reported options exposure · as of Jun 30, 2024
CallValue
$10,014,200
CallShares
460,000
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Diagnostics & Research

Healthcare · as of Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $788,320,547 across 32 Diagnostics & Research names. CSTL ranks #19 (1.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CSTL

Export CSV
27 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $8,673,981 353,319
2025-12-31 $12,016,754 308,914
2025-09-30 $13,094,776 575,089
2025-06-30 $8,747,866 428,397
2025-03-31 $5,100,074 254,749
2024-12-31 $14,625,759 548,809
2024-09-30 $4,008,115 140,537
2024-06-30 $10,014,200 460,000
2024-06-30 $758,183 34,827
2024-03-31 $5,505,448 248,553
2023-12-31 $15,458,833 716,350
2023-09-30 $10,051,171 595,096
2023-06-30 $137,200 10,000
2023-06-30 $14,208,335 1,035,593
2023-03-31 $18,753,928 825,437
2022-12-31 $21,500,847 913,375
2022-09-30 $25,097,853 962,341
2022-09-30 $1,304,000 50,000
2022-06-30 $19,800,853 902,089
2022-03-31 $12,230,675 272,641
2021-12-31 $22,142,612 516,506
2021-09-30 $26,823,373 403,359
2021-03-31 $17,119,792 250,070
2020-12-31 $32,452,184 483,279
2020-09-30 $18,250,909 354,731
2020-06-30 $13,113,406 347,928
2020-03-31 $6,243,674 209,449