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CSTL Insider Trading (Castle Biosciences)

Insider Ownership Percentage: 39.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $100,507,699.09

Castle Biosciences Insider Trading History Chart

Castle Biosciences Share Price & Price History

$69.51
▼ -1.25 (-1.77%)
As of 04/9/2021 01:00 AM ET
Days: 30 | 90 | 365
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Castle Biosciences Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
4/7/2021Daniel BradburyDirectorSell15,000$72.81$1,092,150.00  
4/5/2021David S KabakoffDirectorSell70,000$72.20$5,054,000.00  
3/31/2021David S KabakoffDirectorSell30,000$67.76$2,032,800.00  
3/29/2021Derek J MaetzoldInsiderSell12,974$58.94$764,687.56690,410  
3/26/2021Derek J MaetzoldInsiderSell13,275$60.45$802,473.75690,410  
3/24/2021Daniel BradburyDirectorSell7,500$63.09$473,175.00  
3/22/2021David S KabakoffDirectorSell10,000$67.12$671,200.00  
3/19/2021David S KabakoffDirectorSell10,000$66.17$661,700.00  
3/16/2021David S KabakoffDirectorSell120,000$63.74$7,648,800.00  
3/12/2021Derek J MaetzoldInsiderSell14,375$64.30$924,312.50705,397  
3/10/2021Derek J MaetzoldInsiderSell14,375$65.08$935,525.00735,325  
2/23/2021Daniel BradburyDirectorSell7,500$79.63$597,225.00  
2/10/2021Daniel BradburyDirectorSell15,000$95.35$1,430,250.00
2/9/2021Derek J MaetzoldInsiderSell28,750$95.21$2,737,287.50
1/27/2021Derek J MaetzoldInsiderSell14,377$66.08$950,032.16862,513  
1/25/2021Daniel BradburyDirectorSell7,500$76.94$577,050.00  
1/14/2021Derek J MaetzoldInsiderSell28,754$74.83$2,151,661.82910,618  
1/12/2021Daniel BradburyDirectorSell12,113$78.29$948,326.77  
1/12/2021Frank StokesCFOSell7,500$78.14$586,050.0011,386  
12/29/2020Daniel BradburyDirectorSell30,000$69.69$2,090,700.00  
12/29/2020Derek J MaetzoldInsiderSell15,000$66.45$996,750.001,282,631  
12/16/2020Derek J MaetzoldInsiderSell6,250$66.22$413,875.001,305,702  
12/10/2020Derek J MaetzoldInsiderSell15,000$58.93$883,950.001,335,302  
12/10/2020Joseph C Cook IIIDirectorSell78,265$58.35$4,566,762.75142,178  
12/8/2020Joseph C Cook IIIDirectorSell47,176$56.20$2,651,291.20142,178  
12/4/2020Derek J MaetzoldInsiderSell18,750$51.05$957,187.501,353,452  
12/2/2020Derek J MaetzoldInsiderSell6,250$50.08$313,000.001,353,452  
11/18/2020Derek J MaetzoldInsiderSell18,750$48.82$915,375.00
11/13/2020Frank StokesCFOSell26,000$50.87$1,322,620.00
11/5/2020Derek J MaetzoldInsiderSell18,750$49.63$930,562.501,408,748  
11/3/2020Derek J MaetzoldInsiderSell6,250$47.52$297,000.001,408,748  
10/28/2020Derek J MaetzoldInsiderSell1,200$49.54$59,448.001,412,248  
10/20/2020Daniel BradburyDirectorSell11,750$49.70$583,975.00  
10/20/2020Derek J MaetzoldInsiderSell1,000$49.65$49,650.001,414,448  
10/14/2020Joseph C Cook IIIDirectorSell6,475$54.58$353,405.50192,502  
10/13/2020Frank StokesCFOSell13,000$54.79$712,270.0014,886  
10/12/2020Joseph C Cook IIIDirectorSell19,676$54.84$1,079,031.84192,502  
10/9/2020David S KabakoffDirectorSell50,000$54.20$2,710,000.00  
10/5/2020David S KabakoffDirectorSell25,000$52.09$1,302,250.00  
10/2/2020Derek J MaetzoldInsiderSell18,640$51.64$962,569.60
10/2/2020Mara G AspinallDirectorSell2,500$52.48$131,200.00  
9/22/2020Derek J MaetzoldInsiderSell36,160$51.46$1,860,793.601,461,611  
9/16/2020Daniel BradburyDirectorSell3,750$48.38$181,425.00  
9/15/2020Frank StokesCFOSell26,000$49.52$1,287,520.00
9/10/2020Derek J MaetzoldInsiderSell41,924$49.49$2,074,818.761,516,833  
9/8/2020Bernhard E. SpiessInsiderSell14,888$49.00$729,512.0051,747  
9/8/2020Joseph C Cook IIIDirectorSell69,265$48.30$3,345,499.50212,178  
9/4/2020Bernhard E. SpiessInsiderSell25,112$47.41$1,190,559.92  
9/4/2020Joseph C Cook IIIDirectorSell61,838$46.93$2,902,057.34212,178  
9/2/2020Daniel BradburyDirectorSell7,500$45.66$342,450.00  
8/31/2020Joseph C Cook IIIDirectorSell8,228$45.84$377,171.52212,178  
8/28/2020Joseph C Cook IIIDirectorSell71,940$46.03$3,311,398.20
8/26/2020Joseph C Cook IIIDirectorSell5,049$45.85$231,496.65212,178  
8/24/2020Joseph C Cook IIIDirectorSell8,877$45.90$407,454.30212,178  
8/20/2020Joseph C Cook IIIDirectorSell17,369$45.84$796,194.96212,178  
8/18/2020Daniel BradburyDirectorSell3,750$43.18$161,925.00  
8/13/2020Derek J MaetzoldInsiderSell13,500$41.23$556,605.00
8/6/2020Daniel BradburyDirectorSell3,750$41.34$155,025.00  
8/5/2020Derek J MaetzoldInsiderSell5,000$41.67$208,350.001,572,348  
7/21/2020Daniel BradburyDirectorSell3,750$41.81$156,787.50  
7/21/2020Derek J MaetzoldInsiderSell7,000$41.97$293,790.001,587,718  
7/17/2020David S KabakoffDirectorSell25,000$43.04$1,076,000.00  
7/15/2020Derek J MaetzoldInsiderSell28,000$41.96$1,174,880.001,604,223  
7/8/2020Daniel BradburyDirectorSell7,500$41.08$308,100.00  
6/24/2020Joseph C Cook IIIDirectorSell100$43.11$4,311.00212,178  
6/22/2020David S KabakoffDirectorSell175,000$40.50$7,087,500.00212,178  
6/18/2020Joseph C Cook IIIDirectorSell73,944$41.71$3,084,204.24212,178  
6/15/2020Joseph C Cook IIIDirectorSell22,195$39.67$880,475.65212,178  
6/10/2020Joseph C Cook IIIDirectorSell2,108$39.00$82,212.00212,178  
6/3/2020Daniel BradburyDirectorSell3,750$37.01$138,787.50  
5/28/2020Joseph C Cook IIIDirectorSell15,520$38.66$600,003.20208,053  
5/27/2020Derek J MaetzoldInsiderSell5,000$36.75$183,750.001,625,348  
5/26/2020Joseph C Cook IIIDirectorSell23,820$38.69$921,595.80208,053  
5/22/2020Derek J MaetzoldInsiderSell5,000$36.97$184,850.001,628,359  
5/21/2020Daniel BradburyDirectorSell3,750$37.21$139,537.50208,053  
5/19/2020Joseph C Cook IIIDirectorSell900$37.03$33,327.00208,053  
5/12/2020Sofinnova Healthquest PartnersMajor ShareholderSell250,000$34.50$8,625,000.00  
4/30/2020Bonnie H AndersonDirectorSell3,000$30.25$90,750.00  
2/19/2020David S KabakoffDirectorSell25,000$32.03$800,750.00  
2/13/2020David S KabakoffDirectorSell25,000$32.01$800,250.00  
2/6/2020Sofinnova Healthquest PartnersMajor ShareholderSell25,000$31.03$775,750.00  
1/28/2020Sofinnova Healthquest PartnersMajor ShareholderSell25,000$30.02$750,500.00  
7/29/2019David S KabakoffDirectorBuy62,500$16.00$1,000,000.00  
7/29/2019Mgc Venture Partners 2013 Gp,Major ShareholderBuy312,500$16.00$5,000,000.00  
See Full Table

SEC Filings (Institutional Ownership Changes) for Castle Biosciences (NASDAQ:CSTL)

66.42% of Castle Biosciences stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Castle Biosciences Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in Company
3/12/2021DekaBank Deutsche Girozentrale7,000$0.47M0.0%N/A0.035%
3/8/2021Dimensional Fund Advisors LP20,682$1.39M0.0%N/A0.103%
3/1/2021UBS Asset Management Americas Inc.190,168$12.77M0.0%-26.6%0.943%
2/25/2021Dimensional Fund Advisors LP20,682$1.39M0.0%N/A0.103%
2/24/2021EMC Capital Management28,114$1.89M1.4%N/A0.139%
2/23/2021Principal Financial Group Inc.78,352$5.26M0.0%+176.9%0.389%
2/19/2021JPMorgan Chase & Co.22,470$1.51M0.0%+162.3%0.111%
2/17/2021Voloridge Investment Management LLC35,378$2.38M0.0%+27.4%0.176%
2/17/2021Zebra Capital Management LLC15,310$1.03M1.3%+8.5%0.076%
2/17/2021Castleark Management LLC148,197$9.95M0.4%-10.2%0.735%
2/17/2021United Capital Financial Advisers LLC29,080$1.95M0.0%-0.7%0.144%
2/17/2021Jane Street Group LLC14,089$0.95M0.0%+26.8%0.070%
2/16/2021Zacks Investment Management14,673$0.99M0.0%N/A0.073%
2/16/2021Squarepoint Ops LLC17,208$1.16M0.0%+21.6%0.085%
2/16/2021Morgan Stanley76,332$5.13M0.0%+43.3%0.379%
2/16/2021Rice Hall James & Associates LLC35,808$2.41M0.1%+7.1%0.178%
2/16/2021DF Dent & Co. Inc.40,752$2.74M0.0%N/A0.202%
2/16/2021Knights of Columbus Asset Advisors LLC27,346$1.84M0.2%+28.5%0.136%
2/16/2021Nuveen Asset Management LLC80,793$5.43M0.0%-4.2%0.401%
2/16/2021Price T Rowe Associates Inc. MD3,901$0.26M0.0%N/A0.019%
2/16/2021Avidity Partners Management LP150,000$10.07M0.3%N/A0.744%
2/16/2021Janus Henderson Group PLC28,095$1.89M0.0%+12.0%0.139%
2/16/2021Charles Schwab Investment Management Inc.105,052$7.06M0.0%+22.8%0.521%
2/13/2021Essex Investment Management Co. LLC35,042$2.35M0.3%-13.9%0.174%
2/13/2021American International Group Inc.6,897$0.46M0.0%-1.7%0.034%
2/12/2021Capital Impact Advisors LLC25,000$1.68M0.4%N/A0.124%
2/12/2021Laurion Capital Management LP5,000$0.34M0.0%N/A0.025%
2/12/2021Penserra Capital Management LLC460$30K0.0%+173.8%0.002%
2/12/2021Federated Hermes Inc.276,599$18.57M0.0%+58.0%1.372%
2/12/2021The Manufacturers Life Insurance Company 7,225$0.49M0.0%+7.8%0.036%
2/12/2021Public Employees Retirement System of Ohio42,152$2.83M0.0%N/A0.209%
2/12/2021Advisory Research Inc.13,991$0.94M0.1%-31.6%0.069%
2/12/2021Credit Suisse AG12,270$0.82M0.0%+31.7%0.061%
2/12/2021Next Century Growth Investors LLC350,809$23.56M2.0%+27.3%1.740%
2/12/2021M&T Bank Corp3,186$0.21M0.0%N/A0.016%
2/11/2021Northern Trust Corp162,422$10.91M0.0%+5.3%0.806%
2/11/2021Baird Financial Group Inc.11,576$0.78M0.0%+19.4%0.057%
2/11/2021Citigroup Inc.3,640$0.24M0.0%+95.5%0.018%
2/11/2021RMB Capital Management LLC6,423$0.43M0.0%N/A0.032%
2/11/2021Monashee Investment Management LLC25,000$1.68M0.2%N/A0.124%
2/11/2021Signaturefd LLC19,125$1.28M0.1%-40.5%0.095%
2/10/2021Rhumbline Advisers13,503$0.91M0.0%+8.2%0.067%
2/10/2021King Luther Capital Management Corp44,840$3.01M0.0%-2.9%0.222%
2/10/2021Panagora Asset Management Inc.16,119$1.08M0.0%+2.3%0.080%
2/10/2021Oxford Financial Group Ltd.5,394$0.36M0.1%-93.8%0.027%
2/9/2021Wells Fargo & Company MN591,106$39.69M0.0%-2.1%2.933%
2/9/2021Perkins Capital Management Inc.34,500$2.32M1.5%-1.1%0.171%
2/9/2021Bank of New York Mellon Corp85,338$5.73M0.0%-7.3%0.423%
2/9/2021Premier Fund Managers Ltd108,441$7.46M0.3%+49.7%0.538%
2/9/2021Lord Abbett & CO. LLC217,676$14.62M0.0%+19.6%1.080%
2/9/2021Chartwell Investment Partners LLC20,243$1.36M0.0%+30.7%0.100%
2/9/2021ProShare Advisors LLC5,700$0.38M0.0%+23.7%0.028%
2/8/2021Royce & Associates LP35,000$2.35M0.0%-1.4%0.174%
2/8/2021Alliancebernstein L.P.10,800$0.73M0.0%-15.0%0.054%
2/8/2021New York State Common Retirement Fund25,018$1.68M0.0%-15.1%0.124%
2/8/2021Russell Investments Group Ltd.110,385$7.41M0.0%+1.3%0.548%
2/6/2021Pembroke Management LTD260,246$17.48M1.5%N/A1.291%
2/5/2021BlackRock Inc.1,141,747$76.67M0.0%+14.2%5.665%
2/5/2021GW&K Investment Management LLC452,391$30.38M0.3%+353.2%2.244%
2/5/2021Swiss National Bank40,900$2.75M0.0%+56.7%0.203%
2/5/2021Redwood Investments LLC313,092$21.02M1.8%-11.5%1.553%
2/5/2021SG Americas Securities LLC60,777$4.08M0.0%+39.1%0.302%
2/5/2021Monarch Partners Asset Management LLC78,932$5.30M0.9%-18.5%0.392%
2/4/2021Los Angeles Capital Management LLC51,231$3.44M0.0%+8.3%0.254%
2/4/2021Trustcore Financial Services LLC154,474$10.37M1.3%-23.9%0.766%
2/4/2021Cambridge Investment Research Advisors Inc.6,945$0.47M0.0%+2.6%0.034%
2/4/2021State of Wisconsin Investment Board16,400$1.10M0.0%+12.3%0.081%
2/3/2021Valmark Advisers Inc.11,680$0.78M0.0%N/A0.058%
2/2/2021Parallel Advisors LLC25,000$1.68M0.1%-36.6%0.124%
2/1/2021Victory Capital Management Inc.359,867$24.17M0.0%+1,784.1%1.785%
1/29/2021Kornitzer Capital Management Inc. KS173,762$11.67M0.2%+8.3%0.862%
1/28/2021Arizona State Retirement System3,425$0.23M0.0%N/A0.017%
1/27/2021Calamos Advisors LLC146,836$9.86M0.1%-3.1%0.728%
1/25/2021Nisa Investment Advisors LLC400$27K0.0%N/A0.002%
1/8/2021Creative Financial Designs Inc. ADV1,972$0.13M0.0%N/A0.010%
12/14/2020Strs Ohio12,900$0.66M0.0%+1,190.0%0.064%
12/9/2020Pentwater Capital Management LP5,000$0.26M0.0%-33.3%0.025%
12/4/2020Sei Investments Co.17,071$0.88M0.0%+32.6%0.085%
11/17/2020Voloridge Investment Management LLC27,773$1.43M0.0%N/A0.139%
11/17/2020Zebra Capital Management LLC14,116$0.73M1.1%N/A0.071%
11/17/2020California State Teachers Retirement System17,750$0.91M0.0%+14.8%0.089%
11/17/2020Jane Street Group LLC11,112$0.57M0.0%+64.8%0.056%
11/17/2020Schonfeld Strategic Advisors LLC78,700$4.05M0.1%+407.7%0.390%
11/17/2020Grandeur Peak Global Advisors LLC8,819$0.45M0.0%-19.1%0.044%
11/16/2020Cubist Systematic Strategies LLC18,314$0.94M0.0%+2,998.8%0.092%
11/16/2020Squarepoint Ops LLC14,147$0.73M0.0%N/A0.071%
11/16/2020ArrowMark Colorado Holdings LLC88,219$4.54M0.0%-6.1%0.443%
11/16/2020Oberweis Asset Management Inc.160,720$8.27M2.8%+1.1%0.807%
11/16/2020Castleark Management LLC165,098$8.49M0.3%+11.8%0.829%
11/13/2020Morgan Stanley53,280$2.74M0.0%-83.1%0.268%
11/13/2020Segall Bryant & Hamill LLC67,469$3.47M0.0%N/A0.339%
11/13/2020C M Bidwell & Associates Ltd.7,335$0.38M0.3%-3.0%0.037%
11/13/2020ProShare Advisors LLC4,609$0.24M0.0%N/A0.023%
11/13/2020Charles Schwab Investment Management Inc.85,526$4.40M0.0%+268.3%0.430%
11/13/2020UBS Asset Management Americas Inc.259,137$13.33M0.0%+57.9%1.301%
11/12/2020Advisory Research Inc.20,448$1.05M0.1%+43.3%0.103%
11/12/2020King Luther Capital Management Corp46,200$2.38M0.0%+32.6%0.232%
11/12/2020JPMorgan Chase & Co.8,567$0.43M0.0%-16.5%0.043%
11/12/2020Royce & Associates LP35,481$1.83M0.0%+22.3%0.178%
11/12/2020Federated Hermes Inc.175,054$9.01M0.0%+24.6%0.889%
Data available starting January 2016

See Full Table
Castle Biosciences logo
Castle Biosciences, Inc., a commercial-stage dermatological cancer, develops and commercializes diagnostic and prognostic tests for cancers. Its lead product is DecisionDx-Melanoma, a multi-gene expression profile (GEP) test to identify stage I and II patients at high risk of metastasis based on biological information from 31 genes within their tumor tissue. The company also offers DecisionDx-UM test, a proprietary GEP test that predicts the risk of metastasis for patients with uveal melanoma, a rare eye cancer; and two late-stage proprietary products in development, which address cutaneous squamous cell carcinoma and suspicious pigmented lesions, which are indications with high clinical need in dermatological cancer. It offers test services through physicians, physician assistants, and nurse practitioners. The company was founded in 2007 and is headquartered in Friendswood, Texas.
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Today's Range

Now: $69.51
$67.43
$71.01

50 Day Range

MA: $70.65
$58.92
$90.74

52 Week Range

Now: $69.51
$26.13
$107.69

Volume

133,009 shs

Average Volume

315,923 shs

Market Capitalization

$1.74 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.46

Who are the company insiders with the largest holdings of Castle Biosciences?

Castle Biosciences' top insider shareholders include:
  1. Derek J Maetzold (Insider)
  2. David S Kabakoff (Director)
  3. Joseph C Cook III (Director)
  4. Daniel Bradbury (Director)
  5. Bernhard E Spiess (Insider)
  6. Frank Stokes (CFO)
  7. Bonnie H Anderson (Director)
  8. Mara G Aspinall (Director)
  9. Mgc Venture Partners 2013 Gp, (Major Shareholder)
  10. Sofinnova Healthquest Partners (Major Shareholder)
Insider Urges: Get Out Of Cash Before April 27th
Chris Rowe says there’s a huge stock market event looming - and he’s revealing his #1 pick for free.
Click here to find out more.
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