Castle Biosciences Inc (CSTL)

HEALTH CARE: HEALTH CARE SERVICES
SIC: SERVICES-MEDICAL LABORATORIES

505 S FRIENDSWOOD DRIVE FRIENDSWOOD, TX 77546

Castle Biosciences is a commercial-stage dermatologic cancer company focused on providing physicians and their patients with personalized, clinically actionable genomic information to make more accurate treatment decisions. The Company currently offers tests for patients with cutaneous melanoma (DecisionDx®-Melanoma, DecisionDx®-CMSeq), cutaneous squamous cell carcinoma (DecisionDx®-SCC), suspicious pigmented lesions (DecisionDx® DiffDx™-Melanoma) and uveal melanoma (DecisionDx®-UM, DecisionDx®-PRAME and DecisionDx®-UMSeq).Castle also has active research and development programs for tests in other dermatologic diseases with high clinical need. Castle Biosciences is based in Friendswood, Texas (Houston), and has laboratory operations in Phoenix, Arizona.

Data as of 2021-08-02 09:07:37 -0400
Market Cap1.75 Billion Shares Outstanding25.056 Million Avg 30-day Volume152.477 Thousand
P/E Ratio Dividend Yield EPS
Price/Sales Debt to Equity EBITDA
Price to Book Value0.0 Forward PE-2.28 Enterprise Value
Total Cash Current Debt Gross Profit
BETA1.1742 52-week High/Low107.69 / 36.15 Next Earnings Date2021-08-09 Price to Cash FLow (P/CF) -427.9868
Data provided by IEX Cloud

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View SEC Filings from CSTL instead.
Q1 2021 All 13F Filers Prior Change Hedge Funds 1 Prior Change
In top 10: 2 3 -33.33% 1 (0.06%) 2 (0.12%) -50.0%
Funds Holding: 172 163 5.52% 58 (3.4%) 62 (3.6%) -6.45%
13F shares: 21.284 Million 19.98 Million 6.52% 9.107 Million 8.523 Million 6.85%
% Ownership 85.2097 80.71 5.58% 36.4599 34.4291 5.9%
New Positions: 33 39 -15.38% 13 15 -13.33%
Increased Positions 72 64 12.5% 23 22 4.55%
Closed Positions 23 19 21.05% 17 7 142.86%
Reduced Positions 53 45 17.78% 18 23 -21.74%
Total Calls 33.908 Thousand 121.704 Thousand -72.14% 27 Thousand 88.6 Thousand -69.53%
Total Puts 176.801 Thousand 45.12 Thousand 291.85% 160.8 Thousand 12.3 Thousand 1207.32%
PUT/CALL Ratio 5.21 0.37 1308.11% 5.96 0.14 4157.14%
1 hedge funds and active managers as identified by whalewisdom.com through public filings.

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Open Market Buys/Sells Last 60 Days

Open Market Buys (P)

none

Open Market Sells (S)

215 Thousand total shares from 97 transactions

Exercise Derivative Conversion (M)

34 Thousand total shares from 6 transactions

Current/Former Insiders

Insider Name Type Last Reported Shares Held Last Reported Date Filings in past year

MAETZOLD DEREK J PRES. & CHIEF EXEC. OFFICER

  • Officer
  • Director
897,498 2021-07-30 50

BRADBURY DANIEL

  • Director
586,578 2021-07-26 21

CAPLE KIM

  • Director
0 2021-07-14 2

GOLDBERG ELLEN

  • Director
0 2021-07-14 2

KABAKOFF DAVID S

  • Director
503,577 2021-06-17 12

JUVENAL TOBIN W CHIEF COMMERCIAL OFFICER

  • Officer
16,001 2021-06-17 4

STOKES FRANK CHIEF FINANCIAL OFFICER

  • Officer
97,844 2021-06-15 7

HARRISON MILES

  • Director
4,209 2021-06-10 1

COLE G BRADLEY

  • Director
4,209 2021-06-10 1

ASPINALL MARA G.

  • Director
4,209 2021-06-10 5

SPIESS BERNHARD E. CHIEF BUSINESS OFFICER

  • Officer
28,440 2021-06-08 6

OLSON TIFFANY

  • Director
7,396 2021-05-10 2

OELSCHLAGER KRISTEN M CHIEF OPERATING OFFICER

  • Officer
107,117 2021-04-15 3

COOK JOSEPH C. III

  • Director
772,200 2021-03-18 14

ANDERSON BONNIE H

  • Director
21,723 2020-07-17 0

MONZON FEDERICO A. CHIEF MEDICAL OFFICER

  • Officer
31,459 2020-05-22 0

MGC VENTURE PARTNERS 2013 GP, LLC

MGC VENTURE PARTNERS 2013, L.P.

MGC VENTURE PARTNERS 2018 GP, LLC

MGC VENTURE PARTNERS 2018, L.P.

MGC VENTURE PARTNERS QP 2018, L.P.

  • 10% Owner
No longer subject to file 2020-05-15 0

SOFINNOVA HEALTHQUEST PARTNERS, L.P.

HEALTHQUEST VENTURE MANAGEMENT, L.L.C.

KONG GARHENG

  • SEE REMARKSSEE REMARKSSEE REMARKS
No longer subject to file 2020-05-12 0

Insider Transactions Last 60 Days

Reporting Owners Filing Date Trans Date Trans Code Shares Share Price Acquired
Disposed
Shares Owned after D/I 10b5 Perf 1d* Perf 5d* Perf 1m* Max Gain Max Gain Days Max Loss Max Loss Days

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-08-03 16:17:27 -0400 2021-08-02 S 457 $70.26 d 163,039 indirect yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-08-03 16:17:27 -0400 2021-08-02 S 456 $70.26 d 175,640 indirect yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-08-03 16:17:27 -0400 2021-08-02 S 456 $70.26 d 152,801 indirect yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-08-03 16:17:27 -0400 2021-07-30 S 704 $70.17 d 163,496 indirect yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-08-03 16:17:27 -0400 2021-07-30 S 704 $70.17 d 176,096 indirect yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-08-03 16:17:27 -0400 2021-07-30 S 703 $70.17 d 153,257 indirect yes

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-28 17:10:37 -0400 2021-07-27 S 1,250 $63.16 d 152,804 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by llc

2021-07-28 17:10:37 -0400 2021-07-27 S 1,059 $63.53 d 281,193 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-28 17:10:37 -0400 2021-07-27 S 1,250 $63.08 d 152,781 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by llc

2021-07-28 17:10:37 -0400 2021-07-27 S 1,241 $62.80 d 282,252 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by llc

2021-07-28 17:10:37 -0400 2021-07-27 S 200 $64.35 d 280,993 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-28 17:10:37 -0400 2021-07-26 S 1,250 $66.73 d 154,031 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by llc

2021-07-28 17:10:37 -0400 2021-07-26 S 900 $67.70 d 283,493 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-28 17:10:37 -0400 2021-07-26 S 1,250 $66.33 d 154,054 indirect yes 1.9559 1.9559 2 0.0 1

BRADBURY DANIEL - Director by llc

2021-07-28 17:10:37 -0400 2021-07-26 S 1,600 $66.64 d 284,393 indirect yes 1.9559 1.9559 2 0.0 1

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-23 17:16:13 -0400 2021-07-21 S 2,125 $66.53 d 413,893 direct yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-23 17:16:13 -0400 2021-07-21 S 500 $68.68 d 164,200 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-23 17:16:13 -0400 2021-07-21 S 500 $68.68 d 176,800 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-23 17:16:13 -0400 2021-07-21 S 500 $68.68 d 153,960 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-23 17:16:13 -0400 2021-07-21 S 5,975 $68.68 d 406,018 direct yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-23 17:16:13 -0400 2021-07-21 S 167 $67.75 d 164,700 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-23 17:16:13 -0400 2021-07-21 S 167 $67.75 d 177,300 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-23 17:16:13 -0400 2021-07-21 S 166 $67.75 d 154,460 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-23 17:16:13 -0400 2021-07-21 S 1,900 $67.79 d 411,993 direct yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-23 17:16:13 -0400 2021-07-21 S 166 $66.38 d 164,867 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-23 17:16:13 -0400 2021-07-21 S 167 $66.38 d 177,467 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-23 17:16:13 -0400 2021-07-21 S 167 $66.38 d 154,626 indirect yes -4.2585 5.3609 5.4817 5 -4.2585 2

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-21 16:19:21 -0400 2021-07-20 S 311 $66.64 d 177,634 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-21 16:19:21 -0400 2021-07-20 S 522 $65.63 d 155,105 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-21 16:19:21 -0400 2021-07-20 S 5,517 $65.57 d 420,501 direct yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-21 16:19:21 -0400 2021-07-20 S 312 $66.64 d 165,033 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-21 16:19:21 -0400 2021-07-20 S 522 $65.63 d 177,945 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-21 16:19:21 -0400 2021-07-20 S 200 $67.03 d 416,018 direct yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-21 16:19:21 -0400 2021-07-20 S 521 $65.63 d 165,345 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-21 16:19:21 -0400 2021-07-20 S 312 $66.64 d 154,793 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-21 16:19:21 -0400 2021-07-20 S 4,283 $66.45 d 416,218 direct yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by djm grantor retained annuity trust no. 1

2021-07-21 16:19:21 -0400 2021-07-19 S 833 $64.59 d 155,627 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by derek maetzold 2020 irrevocable trust

2021-07-21 16:19:21 -0400 2021-07-19 S 834 $64.59 d 165,866 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-21 16:19:21 -0400 2021-07-19 S 570 $65.11 d 426,018 direct yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER by the maetzold descendants 2020 trust

2021-07-21 16:19:21 -0400 2021-07-19 S 833 $64.59 d 178,467 indirect yes 0.7616 0.3368 0.7616 2 -7.147 4

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-21 16:19:21 -0400 2021-07-19 S 9,430 $64.59 d 426,588 direct yes 0.7616 0.3368 0.7616 2 -7.147 4

GOLDBERG ELLEN - Director

2021-07-16 17:02:45 -0400 2021-07-14 A 1,320 a 1,320 direct

CAPLE KIM - Director

2021-07-16 16:58:21 -0400 2021-07-14 A 5,365 a 5,365 direct

GOLDBERG ELLEN - Director

2021-07-16 17:02:45 -0400 2021-07-14 A 5,365 a 5,365 direct

CAPLE KIM - Director

2021-07-16 16:58:21 -0400 2021-07-14 A 1,320 a 1,320 direct

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-12 16:16:19 -0400 2021-07-09 S 1,010 $71.92 d 443,818 direct yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-09 S 404 $73.81 d 155,281 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-09 S 1,800 $72.26 d 286,093 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-12 16:16:19 -0400 2021-07-09 S 3,100 $73.44 d 436,018 direct yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-12 16:16:19 -0400 2021-07-09 S 1,190 $70.40 d 444,828 direct yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-09 S 846 $73.17 d 155,685 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-09 S 600 $70.37 d 287,893 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-12 16:16:19 -0400 2021-07-09 S 4,700 $72.66 d 439,118 direct yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-09 S 1,250 $73.12 d 155,304 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-09 S 100 $72.76 d 285,993 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 223 $68.26 d 157,381 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 459 $70.01 d 156,831 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-08 S 360 $70.89 d 288,493 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-08 S 700 $71.01 d 446,018 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-08 S 2,599 $68.42 d 452,819 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 425 $70.39 d 156,754 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 200 $66.75 d 157,604 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 391 $68.64 d 157,290 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-08 S 1,440 $70.07 d 288,853 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-08 S 4,504 $70.31 d 446,718 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-08 S 600 $66.62 d 455,418 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 202 $69.23 d 157,179 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 300 $70.65 d 156,531 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by daniel bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 100 $66.55 d 157,681 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

BRADBURY DANIEL - Director by llc

2021-07-12 16:13:43 -0400 2021-07-08 S 700 $68.36 d 290,293 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-08 S 1,597 $69.51 d 451,222 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

BRADBURY DANIEL - Director by annette bradbury irrecovable descendant's trust

2021-07-12 16:13:43 -0400 2021-07-08 S 200 $71.03 d 156,554 indirect yes -5.1136 -4.7017 0.0 1 -7.9545 5

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-07 S 3,354 $70.38 d 456,718 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-07 S 5,946 $69.69 d 460,072 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-07-09 16:27:24 -0400 2021-07-07 S 700 $71.44 d 456,018 direct yes -1.9225 -9.7242 0.0 1 -9.7242 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-28 16:08:50 -0400 2021-06-24 S 7,900 $74.79 d 468,118 direct yes -1.834 -6.5194 0.0 1 -6.5194 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-28 16:08:50 -0400 2021-06-24 S 2,100 $75.45 d 466,018 direct yes -1.834 -6.5194 0.0 1 -6.5194 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-24 16:06:26 -0400 2021-06-23 S 1,810 $75.81 d 476,018 direct yes 4.6334 -3.3252 4.6334 2 -3.3252 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-24 16:06:26 -0400 2021-06-23 S 8,190 $74.90 d 477,828 direct yes 4.6334 -3.3252 4.6334 2 -3.3252 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-24 16:06:26 -0400 2021-06-22 S 4,987 $74.94 d 486,018 direct yes 4.6334 -3.3252 4.6334 2 -3.3252 6

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-24 16:06:26 -0400 2021-06-22 S 5,013 $74.18 d 491,005 direct yes 4.6334 -3.3252 4.6334 2 -3.3252 6

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-17 S 1,273 $73.00 d 5,920 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

JUVENAL TOBIN W - Officer CHIEF COMMERCIAL OFFICER

2021-06-21 16:11:32 -0400 2021-06-17 M 4,737 d 12,695 direct yes

JUVENAL TOBIN W - Officer CHIEF COMMERCIAL OFFICER

2021-06-21 16:11:32 -0400 2021-06-17 M 4,737 $2.39 a 12,827 direct yes -0.7575 -0.7309 -8.0532 2.0332 5 -15.7475 25

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-17 M 1,273 $2.39 a 7,193 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

JUVENAL TOBIN W - Officer CHIEF COMMERCIAL OFFICER

2021-06-21 16:11:32 -0400 2021-06-17 M 5,263 d 479 direct yes

JUVENAL TOBIN W - Officer CHIEF COMMERCIAL OFFICER

2021-06-21 16:11:32 -0400 2021-06-17 M 5,263 $2.36 a 8,090 direct yes -0.7575 -0.7309 -8.0532 2.0332 5 -15.7475 25

KABAKOFF DAVID S - Director by l.p.

2021-06-21 17:47:19 -0400 2021-06-17 S 30,000 $75.07 d 503,577 indirect yes -0.7575 -0.7309 -8.0532 2.0332 5 -15.7475 25

JUVENAL TOBIN W - Officer CHIEF COMMERCIAL OFFICER

2021-06-21 16:11:32 -0400 2021-06-17 S 10,000 $75.40 d 2,827 direct yes -0.7575 -0.7309 -8.0532 2.0332 5 -15.7475 25

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-17 M 1,273 d 25,137 direct yes

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-16 M 2,127 $2.39 a 8,047 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-16 M 2,127 d 26,410 direct yes

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-16 S 2,127 $73.07 d 5,920 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-15 S 11,600 $73.02 d 5,920 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-15 M 11,600 d 28,537 direct yes

STOKES FRANK - Officer CHIEF FINANCIAL OFFICER

2021-06-17 17:36:25 -0400 2021-06-15 M 11,600 $2.39 a 17,520 direct yes 1.933 -0.1089 -5.0231 4.5195 7 -13.6945 27

HARRISON MILES - Director

2021-06-14 16:31:49 -0400 2021-06-10 A 830 a 830 direct

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-14 16:20:59 -0400 2021-06-10 S 4,198 $70.84 d 498,518 direct yes -0.6337 3.6644 -5.4277 5.7721 10 -12.6601 30

COLE G BRADLEY - Director

2021-06-14 16:29:25 -0400 2021-06-10 A 830 a 830 direct

KABAKOFF DAVID S - Director

2021-06-14 16:34:14 -0400 2021-06-10 A 3,379 a 3,379 direct

ASPINALL MARA G. - Director

2021-06-14 16:23:34 -0400 2021-06-10 A 830 a 830 direct

HARRISON MILES - Director

2021-06-14 16:31:49 -0400 2021-06-10 A 3,379 a 3,379 direct

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-14 16:20:59 -0400 2021-06-10 S 2,202 $69.52 d 502,716 direct yes -0.6337 3.6644 -5.4277 5.7721 10 -12.6601 30

COLE G BRADLEY - Director

2021-06-14 16:29:25 -0400 2021-06-10 A 3,379 a 3,379 direct

BRADBURY DANIEL - Director

2021-06-14 16:27:11 -0400 2021-06-10 A 830 a 830 direct

ASPINALL MARA G. - Director

2021-06-14 16:23:34 -0400 2021-06-10 A 3,379 a 3,379 direct

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-14 16:20:59 -0400 2021-06-10 S 2,500 $71.56 d 496,018 direct yes -0.6337 3.6644 -5.4277 5.7721 10 -12.6601 30

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-14 16:20:59 -0400 2021-06-10 S 1,100 $68.63 d 504,918 direct yes -0.6337 3.6644 -5.4277 5.7721 10 -12.6601 30

KABAKOFF DAVID S - Director

2021-06-14 16:34:14 -0400 2021-06-10 A 830 a 830 direct

BRADBURY DANIEL - Director

2021-06-14 16:27:11 -0400 2021-06-10 A 3,379 a 3,379 direct

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-09 S 2,384 $72.84 d 506,418 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-09 S 3,830 $71.71 d 508,802 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-09 S 400 $74.12 d 506,018 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-09 S 3,386 $70.92 d 512,632 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

SPIESS BERNHARD E. - Officer CHIEF BUSINESS OFFICER

2021-06-10 17:06:42 -0400 2021-06-08 M 8,989 $1.92 a 22,551 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 2,554 $72.84 d 516,018 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 700 $69.20 d 521,736 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

SPIESS BERNHARD E. - Officer CHIEF BUSINESS OFFICER

2021-06-10 17:06:42 -0400 2021-06-08 M 8,989 d 14,878 direct yes

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 1,695 $71.47 d 518,572 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 1,468 $68.22 d 522,436 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

SPIESS BERNHARD E. - Officer CHIEF BUSINESS OFFICER

2021-06-10 17:06:42 -0400 2021-06-08 S 8,989 $70.00 d 13,562 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 1,469 $70.48 d 520,267 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

MAETZOLD DEREK J - Director - Officer PRES. & CHIEF EXEC. OFFICER

2021-06-10 17:09:41 -0400 2021-06-08 S 2,114 $67.42 d 523,904 direct yes -0.0417 2.1839 -7.887 6.8021 12 -9.8623 26

* -

Transaction Code Definitions
Code Definition
A Grant, award or other acquisition pursuant to Rule 16b-3(d)
C Conversion of derivative security
D Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e)
E Expiration of short derivative position
F Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3
G Bona fide gift
H Expiration (or cancellation) of long derivative position with value received
I Discretionary transaction in accordance with Rule 16b-3(f) resulting in acquisition or disposition of issuer securities
J Other acquisition or disposition
L Small acquisition under Rule 16a-6
M Exercise or conversion of derivative security exempted pursuant to Rule 16b-3
O Exercise of out-of-the-money derivative security
P Open market or private purchase of non-derivative or derivative security
S Open market or private sale of non-derivative or derivative security
U Disposition pursuant to a tender of shares in a change of control transaction
W Acquisition or disposition by will or the laws of descent and distribution
X Exercise of in-the-money or at-the-money derivative security
Z Deposit into or withdrawal from voting trust

IBR Securities Loan Availability

Updated throughout the day, this shows the number of shares available to borrow. Data provided by Interactive Brokers

Security Date/Time Rebate Rate Fee Rate Shares Available
CASTLE BIOSCIENCES INC CSTL 2021-08-05 22:15:04 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 21:45:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 21:15:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 20:45:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 20:15:04 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 19:45:04 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 19:15:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 18:45:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 18:15:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 17:45:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 17:15:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 16:45:02 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 16:15:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 15:45:03 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 15:15:02 UTC -0.1915 0.2715 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 14:45:02 UTC -0.17 0.25 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 14:15:04 UTC -0.17 0.25 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 13:45:04 UTC -0.17 0.25 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 13:15:03 UTC -0.17 0.25 300000
CASTLE BIOSCIENCES INC CSTL 2021-08-05 12:45:03 UTC -0.17 0.25 300000

Current Active Short Positions

Holder Issuer Net Short Position Position Date Origin
FundVantage Trust- Gotham Enhanced Index Plus Fund CSTL -7.0 shares, $-208.67 2020-03-31 N-PORT
FundVantage Trust- Gotham Index Plus All-Cap Fund CSTL -5.0 shares, $-149.05 2020-03-31 N-PORT
Prudential Investment Portfolios 12- PGIM QMA Large-Cap Core Equity Plus Fund CSTL -400.0 shares, $-27384.0 2021-03-31 N-PORT
Advanced Series Trust- AST QMA U.S. Equity Alpha Portfolio CSTL -8400.0 shares, $-575064.0 2021-03-31 N-PORT
Advanced Series Trust- AST Academic Strategies Asset Allocation Portfolio CSTL -2300.0 shares, $-157458.0 2021-03-31 N-PORT
INVESTMENT MANAGERS SERIES TRUST- 361 Domestic Long/Short Equity Fund CSTL -812.0 shares, $-56052.36 2021-04-30 N-PORT

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