What does CUSIP 14843C105 represent in this 13F holders report?

CUSIP 14843C105 is the security identifier for CSTL - CASTLE BIOSCIENCES INC - Common Stock used to aggregate holder disclosures.

How many institutions held CSTL - CASTLE BIOSCIENCES INC - Common Stock in Q1 2021?

173 institutional investors reported CSTL - CASTLE BIOSCIENCES INC - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

CASTLE BIOSCIENCES INC - Common Stock (CSTL)

CUSIP: 14843C105

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / Common Stock
Shares outstanding: 29,378,292
Total 13F shares: 21,328,263
Share change: +1,311,949
Total reported value: $1,459,495,488
Put/Call ratio: 522%
Price per share: $68.46
Number of holders: 173
Value change: +$90,506,347
Number of buys: 105
Number of sells: 76

Quarterly Holders Quick Answers

What is CUSIP 14843C105?
CUSIP 14843C105 identifies CSTL - CASTLE BIOSCIENCES INC - Common Stock in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Related Filing Research

Latest 13F filings for newly reported positions.
Latest Schedule 13D/13G reports for ownership changes outside 13F cadence.
Latest 10-Q/10-K reports for financial context tied to this issuer.
Recent insider transactions for executive and insider activity.
SEC investors directory and top value investors for manager drilldown.
Back to full security ownership history.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 14843C105:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of CSTL - CASTLE BIOSCIENCES INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
ARK Investment Management LLC	13F	Company	7%	2,068,592	$138,906,000	—	31 Dec 2020	13F
WASATCH ADVISORS LP	13F	Company	7%	2,064,831	$138,654,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	3.9%	1,141,747	$76,670,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	3.8%	1,119,123	$75,149,000	—	31 Dec 2020	13F
Matrix Capital Management Company, LP	13F	Company	3.4%	1,000,000	$67,150,000	—	31 Dec 2020	13F
VANGUARD GROUP INC	13F	Company	3.2%	930,525	$62,485,000	—	31 Dec 2020	13F
RTW INVESTMENTS, LP	13F	Company	2.7%	799,009	$53,653,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	2%	591,106	$39,693,000	—	31 Dec 2020	13F
FMR LLC	13F	Company	2%	582,951	$39,146,000	—	31 Dec 2020	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	1.6%	483,279	$32,452,000	—	31 Dec 2020	13F
GW&K Investment Management, LLC	13F	Company	1.5%	452,391	$30,378,000	—	31 Dec 2020	13F
DRIEHAUS CAPITAL MANAGEMENT LLC	13F	Company	1.5%	430,756	$28,925,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.2%	362,265	$24,326,000	—	31 Dec 2020	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	1.2%	359,867	$24,165,000	—	31 Dec 2020	13F
NEXT CENTURY GROWTH INVESTORS LLC	13F	Company	1.2%	350,809	$23,556,000	—	31 Dec 2020	13F
Redwood Investments, LLC	13F	Company	1.1%	313,092	$21,024,000	—	31 Dec 2020	13F
FEDERATED HERMES, INC.	13F	Company	0.94%	276,599	$18,574,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	0.89%	261,423	$17,555,000	—	31 Dec 2020	13F
Pembroke Management, LTD	13F	Company	0.89%	260,246	$17,476,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.79%	233,037	$15,648,000	—	31 Dec 2020	13F
Granahan Investment Management, LLC	13F	Company	0.77%	226,988	$15,242,000	—	31 Dec 2020	13F
LORD, ABBETT & CO. LLC	13F	Company	0.74%	217,676	$14,617,000	—	31 Dec 2020	13F
Ally Bridge Group (NY) LLC	13F	Company	0.71%	210,000	$14,102,000	—	31 Dec 2020	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	0.65%	190,168	$12,769,782	—	31 Dec 2020	13F
KORNITZER CAPITAL MANAGEMENT INC /KS	13F	Company	0.59%	173,762	$11,668,000	—	31 Dec 2020	13F
OBERWEIS ASSET MANAGEMENT INC/	13F	Company	0.56%	163,110	$10,953,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	0.55%	162,422	$10,907,000	—	31 Dec 2020	13F
TRUSTCORE FINANCIAL SERVICES, LLC	13F	Company	0.53%	154,474	$10,373,000	—	31 Dec 2020	13F
Avidity Partners Management LP	13F	Company	0.51%	150,000	$10,073,000	—	31 Dec 2020	13F
HIGHLAND CAPITAL MANAGEMENT LP	13F	Company	3.1%	916,270	$10,000,000	—	31 Dec 2020	13F
CASTLEARK MANAGEMENT LLC	13F	Company	0.5%	148,197	$9,951,000	—	31 Dec 2020	13F
Calamos Advisors LLC	13F	Company	0.5%	146,836	$9,860,000	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.46%	134,002	$8,997,000	—	31 Dec 2020	13F
Premier Fund Managers Ltd	13F	Company	0.37%	108,441	$7,460,000	—	31 Dec 2020	13F
Russell Investments Group, Ltd.	13F	Company	0.38%	110,385	$7,413,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.36%	105,052	$7,055,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	0.29%	85,338	$5,731,000	—	31 Dec 2020	13F
PUTNAM INVESTMENTS LLC	13F	Company	0.28%	82,815	$5,561,000	—	31 Dec 2020	13F
Point72 Asset Management, L.P.	13F	Company	0.28%	81,145	$5,449,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	0.28%	80,793	$5,425,000	—	31 Dec 2020	13F
Monarch Partners Asset Management LLC	13F	Company	0.27%	78,932	$5,300,000	—	31 Dec 2020	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.27%	78,352	$5,262,000	—	31 Dec 2020	13F
BANK OF MONTREAL /CAN/	13F	Company	0.23%	67,058	$5,131,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	0.26%	76,332	$5,126,000	—	31 Dec 2020	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.24%	69,815	$4,688,000	—	31 Dec 2020	13F
SEGALL BRYANT & HAMILL, LLC	13F	Company	0.23%	66,262	$4,450,000	—	31 Dec 2020	13F
ArrowMark Colorado Holdings LLC	13F	Company	0.22%	65,784	$4,417,000	—	31 Dec 2020	13F
Altium Capital Management LLC	13F	Company	0.21%	61,991	$4,163,000	—	31 Dec 2020	13F
SG Americas Securities, LLC	13F	Company	0.21%	60,777	$4,081,000	—	31 Dec 2020	13F
AXIOM INVESTORS LLC /DE	13F	Company	0.2%	57,825	$3,883,000	—	31 Dec 2020	13F

Institutional Holders of CASTLE BIOSCIENCES INC - Common Stock (CSTL) as of Q1 2021

As of 31 Mar 2021, CASTLE BIOSCIENCES INC - Common Stock (CSTL) was held by 173 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 21,328,263 shares. The largest 10 holders included ARK Investment Management LLC, WASATCH ADVISORS INC, BlackRock Inc., Invesco Ltd., VANGUARD GROUP INC, Matrix Capital Management Company, LP, Highland Capital Management LP, RTW INVESTMENTS, LP, WELLS FARGO & COMPANY/MN, and Pembroke Management, LTD. This page lists 174 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

160

Q1 2021 holders

173

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.