Prices via Intrinio. Supplier and customer ties are extracted from SEC filings and carry the sentence they came from. Not investment advice.
Prices via Intrinio. Supplier and customer ties are extracted from SEC filings and carry the sentence they came from. Not investment advice.
Castle Biosciences Inc
Price, suppliers and customers from SEC filings, institutional ownership and the next report.
Nasdaq · Services-Medical Laboratories
Prev close 35.53 · gapped below the open, then crossed back over prior close. High/low 35.72 at 4:00 pm ET, 33.70 at 8:45 am ET.
175 institutional managers report a position in Castle Biosciences Inc worth $653.8M between them, filed on form 13F for the quarter ending 2026-06-30. 30 of them hold 80% of it, the largest being BlackRock, Inc. at 12.01%.
150 more managers in the register
30 managers hold 80% of the $653.8M institutional base. The other 145 hold the rest.
Positions as filed with the SEC for the quarter ended Jun 30. A 13F is due 45 days after the quarter closes, so this register is 78 days old and does not move with the price above it.
CSTL (Castle Biosciences Inc) has 6 disclosed suppliers and 8 disclosed customers, strongest disclosure first.
Suppliers:
Customers:
Select a tie for the filing sentence that discloses it; select again to open the company. Lines are disclosed suppliers and customers, coloured by industry; the closer to the centre, the more the filings disclose. A dot is green or red by today’s move. Extended: satellites hang off single companies, not bundled sectors.
Largest move on the map today: QGEN +0.15%, in industrials & materials.
via RTW Investments, LLC, Leucadia National Corp, Point72 Asset Management, L.P. +2 more · 10.13% of CSTL, 12.97% of IMTX
via RTW Investments, LLC, Acadian Asset Management LLC, Point72 Asset Management, L.P. +3 more · 10.13% of CSTL, 9.23% of IMCR
via RTW Investments, LLC, Leucadia National Corp, Point72 Asset Management, L.P. +1 more · 10.13% of CSTL, 10.61% of URGN
via RTW Investments, LLC, Point72 Asset Management, L.P., Leucadia National Corp +2 more · 10.13% of CSTL, 11.07% of CMPS
via Acadian Asset Management LLC, Mackenzie Financial Corp, Qube Research & Technologies Ltd +9 more · 3.35% of CSTL, 5.20% of FVCB
via RTW Investments, LLC, Summit Partners Public Asset Management, LLC, HRT Financial LLC +4 more · 10.13% of CSTL, 9.31% of ESTA
Managers holding a meaningful stake in CSTL also hold this much of the other company’s institutional base. Managers who hold most of the companies we cover are excluded, because their overlap says nothing about this one in particular. This is how the two are held, not evidence that one moves the other.