Castle Biosciences Ownership

Who are the major shareholders and have insiders been buying or selling?


Insider Trading Volume

Insider Buying: CSTL insiders have only sold shares in the past 3 months.


Recent Insider Transactions

NasdaqGM:CSTL Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
16 Aug 22SellUS$2,101Derek MaetzoldIndividual64US$32.83
12 May 22BuyUS$24,765Tiffany OlsonIndividual1,320US$18.77
05 Oct 21SellUS$78,679Daniel BradburyIndividual1,250US$62.94

Ownership Breakdown

What is the ownership structure of CSTL?
Owner TypeNumber of SharesOwnership Percentage
Private Companies230,3550.9%
General Public607,4832.3%
Individual Insiders1,175,4864.5%
Institutions24,283,64492.3%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 4.5%.


Top Shareholders

Top 25 shareholders own 72.16% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
14.09%
Wasatch Advisors Inc
3,705,518$96.6m7.6%0.47%
7.7%
BlackRock, Inc.
2,024,255$52.8m13.56%no data
4.6%
The Vanguard Group, Inc.
1,210,796$31.6m2.94%no data
3.58%
Bellevue Asset Management AG
941,059$24.5m54.88%0.26%
3.47%
RTW Investments, LP
913,789$23.8m83.98%0.49%
3.45%
Granahan Investment Management, LLC
906,764$23.6m14.24%0.74%
3.43%
Millennium Management LLC
902,089$23.5m230.87%0.03%
2.57%
Derek Maetzold
677,000$17.7m-8.91%no data
2.44%
Kornitzer Capital Management, Inc.
641,512$16.7m44.37%0.32%
2.4%
Citadel Advisors LLC
630,596$16.4m237.2%0.02%
2.39%
Mountain Group Capital, LLC
628,410$16.4m0%53.54%
2.2%
Palisade Capital Management LLC
578,933$15.1m41.47%0.51%
1.96%
GW&K Investment Management, LLC
516,297$13.5m-15.48%0.14%
1.92%
State Street Global Advisors, Inc.
504,524$13.2m9.99%no data
1.91%
HealthQuest Capital
503,577$13.1m0%79.52%
1.78%
Allspring Global Investments, LLC
468,842$12.2m4.87%0.02%
1.69%
Nikko Asset Management Co., Ltd.
443,882$11.6m3.67%0.01%
1.66%
Greenhouse Funds LLLP
437,088$11.4m0%1.35%
1.64%
Geode Capital Management, LLC
430,556$11.2m7.37%no data
1.59%
Essex Investment Management Company, LLC
417,795$10.9m256.34%1.66%
1.28%
Invesco Ltd.
336,890$8.8m-68.5%no data
1.24%
Jackson National Asset Management, LLC
326,999$8.5m43.4%0.16%
1.12%
Stonepine Capital Management LLC
295,372$7.7m0%3.65%
1.07%
Intrinsic Edge Capital Management LLC
282,400$7.4m32.96%0.63%
0.95%
Principal Global Investors, LLC
249,676$6.5m40.7%no data