CSTL Insider Trading (Castle Biosciences)

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Insider Trading History
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About

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 Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
4/7/2021	Daniel Bradbury	Director	Sell	15,000	$72.81	$1,092,150.00
4/5/2021	David S Kabakoff	Director	Sell	70,000	$72.20	$5,054,000.00
3/31/2021	David S Kabakoff	Director	Sell	30,000	$67.76	$2,032,800.00
3/29/2021	Derek J Maetzold	Insider	Sell	12,974	$58.94	$764,687.56	690,410
3/26/2021	Derek J Maetzold	Insider	Sell	13,275	$60.45	$802,473.75	690,410
3/24/2021	Daniel Bradbury	Director	Sell	7,500	$63.09	$473,175.00
3/22/2021	David S Kabakoff	Director	Sell	10,000	$67.12	$671,200.00
3/19/2021	David S Kabakoff	Director	Sell	10,000	$66.17	$661,700.00
3/16/2021	David S Kabakoff	Director	Sell	120,000	$63.74	$7,648,800.00
3/12/2021	Derek J Maetzold	Insider	Sell	14,375	$64.30	$924,312.50	705,397
3/10/2021	Derek J Maetzold	Insider	Sell	14,375	$65.08	$935,525.00	735,325
2/23/2021	Daniel Bradbury	Director	Sell	7,500	$79.63	$597,225.00
2/10/2021	Daniel Bradbury	Director	Sell	15,000	$95.35	$1,430,250.00
2/9/2021	Derek J Maetzold	Insider	Sell	28,750	$95.21	$2,737,287.50
1/27/2021	Derek J Maetzold	Insider	Sell	14,377	$66.08	$950,032.16	862,513
1/25/2021	Daniel Bradbury	Director	Sell	7,500	$76.94	$577,050.00
1/14/2021	Derek J Maetzold	Insider	Sell	28,754	$74.83	$2,151,661.82	910,618
1/12/2021	Daniel Bradbury	Director	Sell	12,113	$78.29	$948,326.77
1/12/2021	Frank Stokes	CFO	Sell	7,500	$78.14	$586,050.00	11,386
12/29/2020	Daniel Bradbury	Director	Sell	30,000	$69.69	$2,090,700.00
12/29/2020	Derek J Maetzold	Insider	Sell	15,000	$66.45	$996,750.00	1,282,631
12/16/2020	Derek J Maetzold	Insider	Sell	6,250	$66.22	$413,875.00	1,305,702
12/10/2020	Derek J Maetzold	Insider	Sell	15,000	$58.93	$883,950.00	1,335,302
12/10/2020	Joseph C Cook III	Director	Sell	78,265	$58.35	$4,566,762.75	142,178
12/8/2020	Joseph C Cook III	Director	Sell	47,176	$56.20	$2,651,291.20	142,178
12/4/2020	Derek J Maetzold	Insider	Sell	18,750	$51.05	$957,187.50	1,353,452
12/2/2020	Derek J Maetzold	Insider	Sell	6,250	$50.08	$313,000.00	1,353,452
11/18/2020	Derek J Maetzold	Insider	Sell	18,750	$48.82	$915,375.00
11/13/2020	Frank Stokes	CFO	Sell	26,000	$50.87	$1,322,620.00
11/5/2020	Derek J Maetzold	Insider	Sell	18,750	$49.63	$930,562.50	1,408,748
11/3/2020	Derek J Maetzold	Insider	Sell	6,250	$47.52	$297,000.00	1,408,748
10/28/2020	Derek J Maetzold	Insider	Sell	1,200	$49.54	$59,448.00	1,412,248
10/20/2020	Daniel Bradbury	Director	Sell	11,750	$49.70	$583,975.00
10/20/2020	Derek J Maetzold	Insider	Sell	1,000	$49.65	$49,650.00	1,414,448
10/14/2020	Joseph C Cook III	Director	Sell	6,475	$54.58	$353,405.50	192,502
10/13/2020	Frank Stokes	CFO	Sell	13,000	$54.79	$712,270.00	14,886
10/12/2020	Joseph C Cook III	Director	Sell	19,676	$54.84	$1,079,031.84	192,502
10/9/2020	David S Kabakoff	Director	Sell	50,000	$54.20	$2,710,000.00
10/5/2020	David S Kabakoff	Director	Sell	25,000	$52.09	$1,302,250.00
10/2/2020	Derek J Maetzold	Insider	Sell	18,640	$51.64	$962,569.60
10/2/2020	Mara G Aspinall	Director	Sell	2,500	$52.48	$131,200.00
9/22/2020	Derek J Maetzold	Insider	Sell	36,160	$51.46	$1,860,793.60	1,461,611
9/16/2020	Daniel Bradbury	Director	Sell	3,750	$48.38	$181,425.00
9/15/2020	Frank Stokes	CFO	Sell	26,000	$49.52	$1,287,520.00
9/10/2020	Derek J Maetzold	Insider	Sell	41,924	$49.49	$2,074,818.76	1,516,833
9/8/2020	Bernhard E. Spiess	Insider	Sell	14,888	$49.00	$729,512.00	51,747
9/8/2020	Joseph C Cook III	Director	Sell	69,265	$48.30	$3,345,499.50	212,178
9/4/2020	Bernhard E. Spiess	Insider	Sell	25,112	$47.41	$1,190,559.92
9/4/2020	Joseph C Cook III	Director	Sell	61,838	$46.93	$2,902,057.34	212,178
9/2/2020	Daniel Bradbury	Director	Sell	7,500	$45.66	$342,450.00
8/31/2020	Joseph C Cook III	Director	Sell	8,228	$45.84	$377,171.52	212,178
8/28/2020	Joseph C Cook III	Director	Sell	71,940	$46.03	$3,311,398.20
8/26/2020	Joseph C Cook III	Director	Sell	5,049	$45.85	$231,496.65	212,178
8/24/2020	Joseph C Cook III	Director	Sell	8,877	$45.90	$407,454.30	212,178
8/20/2020	Joseph C Cook III	Director	Sell	17,369	$45.84	$796,194.96	212,178
8/18/2020	Daniel Bradbury	Director	Sell	3,750	$43.18	$161,925.00
8/13/2020	Derek J Maetzold	Insider	Sell	13,500	$41.23	$556,605.00
8/6/2020	Daniel Bradbury	Director	Sell	3,750	$41.34	$155,025.00
8/5/2020	Derek J Maetzold	Insider	Sell	5,000	$41.67	$208,350.00	1,572,348
7/21/2020	Daniel Bradbury	Director	Sell	3,750	$41.81	$156,787.50
7/21/2020	Derek J Maetzold	Insider	Sell	7,000	$41.97	$293,790.00	1,587,718
7/17/2020	David S Kabakoff	Director	Sell	25,000	$43.04	$1,076,000.00
7/15/2020	Derek J Maetzold	Insider	Sell	28,000	$41.96	$1,174,880.00	1,604,223
7/8/2020	Daniel Bradbury	Director	Sell	7,500	$41.08	$308,100.00
6/24/2020	Joseph C Cook III	Director	Sell	100	$43.11	$4,311.00	212,178
6/22/2020	David S Kabakoff	Director	Sell	175,000	$40.50	$7,087,500.00	212,178
6/18/2020	Joseph C Cook III	Director	Sell	73,944	$41.71	$3,084,204.24	212,178
6/15/2020	Joseph C Cook III	Director	Sell	22,195	$39.67	$880,475.65	212,178
6/10/2020	Joseph C Cook III	Director	Sell	2,108	$39.00	$82,212.00	212,178
6/3/2020	Daniel Bradbury	Director	Sell	3,750	$37.01	$138,787.50
5/28/2020	Joseph C Cook III	Director	Sell	15,520	$38.66	$600,003.20	208,053
5/27/2020	Derek J Maetzold	Insider	Sell	5,000	$36.75	$183,750.00	1,625,348
5/26/2020	Joseph C Cook III	Director	Sell	23,820	$38.69	$921,595.80	208,053
5/22/2020	Derek J Maetzold	Insider	Sell	5,000	$36.97	$184,850.00	1,628,359
5/21/2020	Daniel Bradbury	Director	Sell	3,750	$37.21	$139,537.50	208,053
5/19/2020	Joseph C Cook III	Director	Sell	900	$37.03	$33,327.00	208,053
5/12/2020	Sofinnova Healthquest Partners	Major Shareholder	Sell	250,000	$34.50	$8,625,000.00
4/30/2020	Bonnie H Anderson	Director	Sell	3,000	$30.25	$90,750.00
2/19/2020	David S Kabakoff	Director	Sell	25,000	$32.03	$800,750.00
2/13/2020	David S Kabakoff	Director	Sell	25,000	$32.01	$800,250.00
2/6/2020	Sofinnova Healthquest Partners	Major Shareholder	Sell	25,000	$31.03	$775,750.00
1/28/2020	Sofinnova Healthquest Partners	Major Shareholder	Sell	25,000	$30.02	$750,500.00
7/29/2019	David S Kabakoff	Director	Buy	62,500	$16.00	$1,000,000.00
7/29/2019	Mgc Venture Partners 2013 Gp,	Major Shareholder	Buy	312,500	$16.00	$5,000,000.00

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 Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
3/12/2021	DekaBank Deutsche Girozentrale	7,000	$0.47M	0.0%	N/A	0.035%
3/8/2021	Dimensional Fund Advisors LP	20,682	$1.39M	0.0%	N/A	0.103%
3/1/2021	UBS Asset Management Americas Inc.	190,168	$12.77M	0.0%	-26.6%	0.943%
2/25/2021	Dimensional Fund Advisors LP	20,682	$1.39M	0.0%	N/A	0.103%
2/24/2021	EMC Capital Management	28,114	$1.89M	1.4%	N/A	0.139%
2/23/2021	Principal Financial Group Inc.	78,352	$5.26M	0.0%	+176.9%	0.389%
2/19/2021	JPMorgan Chase & Co.	22,470	$1.51M	0.0%	+162.3%	0.111%
2/17/2021	Voloridge Investment Management LLC	35,378	$2.38M	0.0%	+27.4%	0.176%
2/17/2021	Zebra Capital Management LLC	15,310	$1.03M	1.3%	+8.5%	0.076%
2/17/2021	Castleark Management LLC	148,197	$9.95M	0.4%	-10.2%	0.735%
2/17/2021	United Capital Financial Advisers LLC	29,080	$1.95M	0.0%	-0.7%	0.144%
2/17/2021	Jane Street Group LLC	14,089	$0.95M	0.0%	+26.8%	0.070%
2/16/2021	Zacks Investment Management	14,673	$0.99M	0.0%	N/A	0.073%
2/16/2021	Squarepoint Ops LLC	17,208	$1.16M	0.0%	+21.6%	0.085%
2/16/2021	Morgan Stanley	76,332	$5.13M	0.0%	+43.3%	0.379%
2/16/2021	Rice Hall James & Associates LLC	35,808	$2.41M	0.1%	+7.1%	0.178%
2/16/2021	DF Dent & Co. Inc.	40,752	$2.74M	0.0%	N/A	0.202%
2/16/2021	Knights of Columbus Asset Advisors LLC	27,346	$1.84M	0.2%	+28.5%	0.136%
2/16/2021	Nuveen Asset Management LLC	80,793	$5.43M	0.0%	-4.2%	0.401%
2/16/2021	Price T Rowe Associates Inc. MD	3,901	$0.26M	0.0%	N/A	0.019%
2/16/2021	Avidity Partners Management LP	150,000	$10.07M	0.3%	N/A	0.744%
2/16/2021	Janus Henderson Group PLC	28,095	$1.89M	0.0%	+12.0%	0.139%
2/16/2021	Charles Schwab Investment Management Inc.	105,052	$7.06M	0.0%	+22.8%	0.521%
2/13/2021	Essex Investment Management Co. LLC	35,042	$2.35M	0.3%	-13.9%	0.174%
2/13/2021	American International Group Inc.	6,897	$0.46M	0.0%	-1.7%	0.034%
2/12/2021	Capital Impact Advisors LLC	25,000	$1.68M	0.4%	N/A	0.124%
2/12/2021	Laurion Capital Management LP	5,000	$0.34M	0.0%	N/A	0.025%
2/12/2021	Penserra Capital Management LLC	460	$30K	0.0%	+173.8%	0.002%
2/12/2021	Federated Hermes Inc.	276,599	$18.57M	0.0%	+58.0%	1.372%
2/12/2021	The Manufacturers Life Insurance Company	7,225	$0.49M	0.0%	+7.8%	0.036%
2/12/2021	Public Employees Retirement System of Ohio	42,152	$2.83M	0.0%	N/A	0.209%
2/12/2021	Advisory Research Inc.	13,991	$0.94M	0.1%	-31.6%	0.069%
2/12/2021	Credit Suisse AG	12,270	$0.82M	0.0%	+31.7%	0.061%
2/12/2021	Next Century Growth Investors LLC	350,809	$23.56M	2.0%	+27.3%	1.740%
2/12/2021	M&T Bank Corp	3,186	$0.21M	0.0%	N/A	0.016%
2/11/2021	Northern Trust Corp	162,422	$10.91M	0.0%	+5.3%	0.806%
2/11/2021	Baird Financial Group Inc.	11,576	$0.78M	0.0%	+19.4%	0.057%
2/11/2021	Citigroup Inc.	3,640	$0.24M	0.0%	+95.5%	0.018%
2/11/2021	RMB Capital Management LLC	6,423	$0.43M	0.0%	N/A	0.032%
2/11/2021	Monashee Investment Management LLC	25,000	$1.68M	0.2%	N/A	0.124%
2/11/2021	Signaturefd LLC	19,125	$1.28M	0.1%	-40.5%	0.095%
2/10/2021	Rhumbline Advisers	13,503	$0.91M	0.0%	+8.2%	0.067%
2/10/2021	King Luther Capital Management Corp	44,840	$3.01M	0.0%	-2.9%	0.222%
2/10/2021	Panagora Asset Management Inc.	16,119	$1.08M	0.0%	+2.3%	0.080%
2/10/2021	Oxford Financial Group Ltd.	5,394	$0.36M	0.1%	-93.8%	0.027%
2/9/2021	Wells Fargo & Company MN	591,106	$39.69M	0.0%	-2.1%	2.933%
2/9/2021	Perkins Capital Management Inc.	34,500	$2.32M	1.5%	-1.1%	0.171%
2/9/2021	Bank of New York Mellon Corp	85,338	$5.73M	0.0%	-7.3%	0.423%
2/9/2021	Premier Fund Managers Ltd	108,441	$7.46M	0.3%	+49.7%	0.538%
2/9/2021	Lord Abbett & CO. LLC	217,676	$14.62M	0.0%	+19.6%	1.080%
2/9/2021	Chartwell Investment Partners LLC	20,243	$1.36M	0.0%	+30.7%	0.100%
2/9/2021	ProShare Advisors LLC	5,700	$0.38M	0.0%	+23.7%	0.028%
2/8/2021	Royce & Associates LP	35,000	$2.35M	0.0%	-1.4%	0.174%
2/8/2021	Alliancebernstein L.P.	10,800	$0.73M	0.0%	-15.0%	0.054%
2/8/2021	New York State Common Retirement Fund	25,018	$1.68M	0.0%	-15.1%	0.124%
2/8/2021	Russell Investments Group Ltd.	110,385	$7.41M	0.0%	+1.3%	0.548%
2/6/2021	Pembroke Management LTD	260,246	$17.48M	1.5%	N/A	1.291%
2/5/2021	BlackRock Inc.	1,141,747	$76.67M	0.0%	+14.2%	5.665%
2/5/2021	GW&K Investment Management LLC	452,391	$30.38M	0.3%	+353.2%	2.244%
2/5/2021	Swiss National Bank	40,900	$2.75M	0.0%	+56.7%	0.203%
2/5/2021	Redwood Investments LLC	313,092	$21.02M	1.8%	-11.5%	1.553%
2/5/2021	SG Americas Securities LLC	60,777	$4.08M	0.0%	+39.1%	0.302%
2/5/2021	Monarch Partners Asset Management LLC	78,932	$5.30M	0.9%	-18.5%	0.392%
2/4/2021	Los Angeles Capital Management LLC	51,231	$3.44M	0.0%	+8.3%	0.254%
2/4/2021	Trustcore Financial Services LLC	154,474	$10.37M	1.3%	-23.9%	0.766%
2/4/2021	Cambridge Investment Research Advisors Inc.	6,945	$0.47M	0.0%	+2.6%	0.034%
2/4/2021	State of Wisconsin Investment Board	16,400	$1.10M	0.0%	+12.3%	0.081%
2/3/2021	Valmark Advisers Inc.	11,680	$0.78M	0.0%	N/A	0.058%
2/2/2021	Parallel Advisors LLC	25,000	$1.68M	0.1%	-36.6%	0.124%
2/1/2021	Victory Capital Management Inc.	359,867	$24.17M	0.0%	+1,784.1%	1.785%
1/29/2021	Kornitzer Capital Management Inc. KS	173,762	$11.67M	0.2%	+8.3%	0.862%
1/28/2021	Arizona State Retirement System	3,425	$0.23M	0.0%	N/A	0.017%
1/27/2021	Calamos Advisors LLC	146,836	$9.86M	0.1%	-3.1%	0.728%
1/25/2021	Nisa Investment Advisors LLC	400	$27K	0.0%	N/A	0.002%
1/8/2021	Creative Financial Designs Inc. ADV	1,972	$0.13M	0.0%	N/A	0.010%
12/14/2020	Strs Ohio	12,900	$0.66M	0.0%	+1,190.0%	0.064%
12/9/2020	Pentwater Capital Management LP	5,000	$0.26M	0.0%	-33.3%	0.025%
12/4/2020	Sei Investments Co.	17,071	$0.88M	0.0%	+32.6%	0.085%
11/17/2020	Voloridge Investment Management LLC	27,773	$1.43M	0.0%	N/A	0.139%
11/17/2020	Zebra Capital Management LLC	14,116	$0.73M	1.1%	N/A	0.071%
11/17/2020	California State Teachers Retirement System	17,750	$0.91M	0.0%	+14.8%	0.089%
11/17/2020	Jane Street Group LLC	11,112	$0.57M	0.0%	+64.8%	0.056%
11/17/2020	Schonfeld Strategic Advisors LLC	78,700	$4.05M	0.1%	+407.7%	0.390%
11/17/2020	Grandeur Peak Global Advisors LLC	8,819	$0.45M	0.0%	-19.1%	0.044%
11/16/2020	Cubist Systematic Strategies LLC	18,314	$0.94M	0.0%	+2,998.8%	0.092%
11/16/2020	Squarepoint Ops LLC	14,147	$0.73M	0.0%	N/A	0.071%
11/16/2020	ArrowMark Colorado Holdings LLC	88,219	$4.54M	0.0%	-6.1%	0.443%
11/16/2020	Oberweis Asset Management Inc.	160,720	$8.27M	2.8%	+1.1%	0.807%
11/16/2020	Castleark Management LLC	165,098	$8.49M	0.3%	+11.8%	0.829%
11/13/2020	Morgan Stanley	53,280	$2.74M	0.0%	-83.1%	0.268%
11/13/2020	Segall Bryant & Hamill LLC	67,469	$3.47M	0.0%	N/A	0.339%
11/13/2020	C M Bidwell & Associates Ltd.	7,335	$0.38M	0.3%	-3.0%	0.037%
11/13/2020	ProShare Advisors LLC	4,609	$0.24M	0.0%	N/A	0.023%
11/13/2020	Charles Schwab Investment Management Inc.	85,526	$4.40M	0.0%	+268.3%	0.430%
11/13/2020	UBS Asset Management Americas Inc.	259,137	$13.33M	0.0%	+57.9%	1.301%
11/12/2020	Advisory Research Inc.	20,448	$1.05M	0.1%	+43.3%	0.103%
11/12/2020	King Luther Capital Management Corp	46,200	$2.38M	0.0%	+32.6%	0.232%
11/12/2020	JPMorgan Chase & Co.	8,567	$0.43M	0.0%	-16.5%	0.043%
11/12/2020	Royce & Associates LP	35,481	$1.83M	0.0%	+22.3%	0.178%
11/12/2020	Federated Hermes Inc.	175,054	$9.01M	0.0%	+24.6%	0.889%

Data available starting January 2016

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.

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:

Derek J Maetzold (Insider)
David S Kabakoff (Director)
Joseph C Cook III (Director)
Daniel Bradbury (Director)
Bernhard E Spiess (Insider)
Frank Stokes (CFO)
Bonnie H Anderson (Director)
Mara G Aspinall (Director)
Mgc Venture Partners 2013 Gp, (Major Shareholder)
Sofinnova Healthquest Partners (Major Shareholder)