About this data
What it is
Before an executive, director or large owner sells restricted or control shares, they file a short notice with the SEC, called Form 144, saying how many shares they plan to sell, through which broker and roughly when. This feed lists those notices, and for each one shows whether a sale was reported afterwards on a Form 4 and how many days later.
Who files it
The person selling, or their broker, on the day the sale is placed. Electronic notices start in April 2023.
How current
We collect new notices throughout the day on SEC business days.
Terms
Form 144The notice an insider or other affiliate of a company files with the SEC before selling restricted or control shares, so the shares can be sold under Rule 144. The notice says how many shares, through which broker, and roughly when.10b5-1 planA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan.
Worth knowing
A notice is a plan, not a sale: the person may sell fewer shares, later, or not at all. The value is the one the filer typed, at a price they chose, not what the shares sell for. Many sales are routine, made to diversify or pay taxes, or under a 10b5-1 plan set up months earlier. A blank in the last column does not mean no sale: the person may not have to file a Form 4 (an ordinary affiliate does not), the sale may be recent, or the Form 4 may name a different spelling of the person. We match by the filer's number first and by name second. Information, not investment advice.

All of this comes from public filings.

Form 144 notices per day, last 30 days

0100200300Oct 17 · All notices: 0Oct 17 · Notices that give a 10b5-1 plan: 0Oct 17Oct 18 · All notices: 0Oct 18 · Notices that give a 10b5-1 plan: 0Oct 19 · All notices: 47Oct 19 · Notices that give a 10b5-1 plan: 29Oct 20 · All notices: 52Oct 20 · Notices that give a 10b5-1 plan: 39Oct 21 · All notices: 46Oct 21 · Notices that give a 10b5-1 plan: 26Oct 21Oct 22 · All notices: 49Oct 22 · Notices that give a 10b5-1 plan: 22Oct 23 · All notices: 62Oct 23 · Notices that give a 10b5-1 plan: 23Oct 24 · All notices: 0Oct 24 · Notices that give a 10b5-1 plan: 0Oct 25 · All notices: 0Oct 25 · Notices that give a 10b5-1 plan: 0Oct 25Oct 26 · All notices: 75Oct 26 · Notices that give a 10b5-1 plan: 28Oct 27 · All notices: 71Oct 27 · Notices that give a 10b5-1 plan: 18Oct 28 · All notices: 54Oct 28 · Notices that give a 10b5-1 plan: 17Oct 29 · All notices: 100Oct 29 · Notices that give a 10b5-1 plan: 31Oct 29Oct 30 · All notices: 97Oct 30 · Notices that give a 10b5-1 plan: 35Oct 31 · All notices: 0Oct 31 · Notices that give a 10b5-1 plan: 0Nov 1 · All notices: 0Nov 1 · Notices that give a 10b5-1 plan: 0Nov 2 · All notices: 272Nov 2 · Notices that give a 10b5-1 plan: 133Nov 2Nov 3 · All notices: 142Nov 3 · Notices that give a 10b5-1 plan: 48Nov 4 · All notices: 190Nov 4 · Notices that give a 10b5-1 plan: 77Nov 5 · All notices: 148Nov 5 · Notices that give a 10b5-1 plan: 53Nov 6 · All notices: 127Nov 6 · Notices that give a 10b5-1 plan: 41Nov 6Nov 7 · All notices: 0Nov 7 · Notices that give a 10b5-1 plan: 0Nov 8 · All notices: 0Nov 8 · Notices that give a 10b5-1 plan: 0Nov 9 · All notices: 217Nov 9 · Notices that give a 10b5-1 plan: 75Nov 10 · All notices: 202Nov 10 · Notices that give a 10b5-1 plan: 59Nov 10Nov 11 · All notices: 0Nov 11 · Notices that give a 10b5-1 plan: 0Nov 12 · All notices: 240Nov 12 · Notices that give a 10b5-1 plan: 77Nov 13 · All notices: 127Nov 13 · Notices that give a 10b5-1 plan: 28Nov 14 · All notices: 0Nov 14 · Notices that give a 10b5-1 plan: 0Nov 14Nov 15 · All notices: 0Nov 15 · Notices that give a 10b5-1 plan: 0
0100200300Oct 17 · All notices: 0Oct 17 · Notices that give a 10b5-1 plan: 0Oct 17Oct 18 · All notices: 0Oct 18 · Notices that give a 10b5-1 plan: 0Oct 19 · All notices: 47Oct 19 · Notices that give a 10b5-1 plan: 29Oct 20 · All notices: 52Oct 20 · Notices that give a 10b5-1 plan: 39Oct 21 · All notices: 46Oct 21 · Notices that give a 10b5-1 plan: 26Oct 21Oct 22 · All notices: 49Oct 22 · Notices that give a 10b5-1 plan: 22Oct 23 · All notices: 62Oct 23 · Notices that give a 10b5-1 plan: 23Oct 24 · All notices: 0Oct 24 · Notices that give a 10b5-1 plan: 0Oct 25 · All notices: 0Oct 25 · Notices that give a 10b5-1 plan: 0Oct 25Oct 26 · All notices: 75Oct 26 · Notices that give a 10b5-1 plan: 28Oct 27 · All notices: 71Oct 27 · Notices that give a 10b5-1 plan: 18Oct 28 · All notices: 54Oct 28 · Notices that give a 10b5-1 plan: 17Oct 29 · All notices: 100Oct 29 · Notices that give a 10b5-1 plan: 31Oct 29Oct 30 · All notices: 97Oct 30 · Notices that give a 10b5-1 plan: 35Oct 31 · All notices: 0Oct 31 · Notices that give a 10b5-1 plan: 0Nov 1 · All notices: 0Nov 1 · Notices that give a 10b5-1 plan: 0Nov 2 · All notices: 272Nov 2 · Notices that give a 10b5-1 plan: 133Nov 2Nov 3 · All notices: 142Nov 3 · Notices that give a 10b5-1 plan: 48Nov 4 · All notices: 190Nov 4 · Notices that give a 10b5-1 plan: 77Nov 5 · All notices: 148Nov 5 · Notices that give a 10b5-1 plan: 53Nov 6 · All notices: 127Nov 6 · Notices that give a 10b5-1 plan: 41Nov 6Nov 7 · All notices: 0Nov 7 · Notices that give a 10b5-1 plan: 0Nov 8 · All notices: 0Nov 8 · Notices that give a 10b5-1 plan: 0Nov 9 · All notices: 217Nov 9 · Notices that give a 10b5-1 plan: 75Nov 10 · All notices: 202Nov 10 · Notices that give a 10b5-1 plan: 59Nov 10Nov 11 · All notices: 0Nov 11 · Notices that give a 10b5-1 plan: 0Nov 12 · All notices: 240Nov 12 · Notices that give a 10b5-1 plan: 77Nov 13 · All notices: 127Nov 13 · Notices that give a 10b5-1 plan: 28Nov 14 · All notices: 0Nov 14 · Notices that give a 10b5-1 plan: 0Nov 14Nov 15 · All notices: 0Nov 15 · Notices that give a 10b5-1 plan: 0

All notices Notices that give a 10b5-1 plan

By the day each notice was filed. A notice is a plan to sell, not a sale.

Latest notices of planned insider sales

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Showing: ticker CSTL

Latest notices of planned insider sales
FiledInsiderCompanyShares to sellA notice is a plan, not a sale. The person may sell fewer shares, sell later, or not sell at all, and the number of shares is what they expect to sell on the day they file.ValueThe aggregate market value the filer typed on the notice: the shares times a price the filer chose. It is not what the shares will sell for.PlanA Rule 10b5-1 trading plan lets an insider set up future sales in advance, on a schedule or at set prices, at a time when they do not hold inside information. A notice that gives a plan adoption date says the sale is made under such a plan.Expected saleSale reportedInsiders who are officers, directors or hold more than 10% report their sales on a Form 4, within two business days. We look for the first Form 4 with an open-market sale by the same person in the same company within 90 days of the notice, and show how many days after the notice it was filed. A blank means we found none: the person may not have sold, may not have to file a Form 4, or the Form 4 may be one we do not have.Notice
Nov 12, 2026Tobin Juvenal
Officer
CSTL
Castle Biosciences, Inc.
3,195$112.0K—Nov 11, 2026Form 4 ↗
same day · 6,116 shares
Form 144 ↗
Nov 9, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
13,154$452.2K10b5-1Nov 9, 2026Form 4 ↗
3 days later · 6,116 shares
Form 144 ↗
Nov 2, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
21,438$749.0K10b5-1Nov 2, 2026Form 4 ↗
2 days later · 14,496 shares
Form 144 ↗
Oct 13, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
13,154$430.9K10b5-1Oct 12, 2026Form 4 ↗
15 days later · 3,288 shares
Form 144 ↗
Oct 5, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
28,992$1.1M10b5-1Oct 5, 2026Form 4 ↗
16 days later · 14,496 shares
Form 144 ↗
Oct 1, 2026Kristen Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
4,153$147.6K10b5-1Oct 1, 2026—Form 144 ↗
Sep 14, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
13,177$440.6K10b5-1Sep 14, 2026Form 4 ↗
2 days later · 6,600 shares
Form 144 ↗
Sep 11, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
29,014$938.0K10b5-1Sep 11, 2026Form 4 ↗
4 days later · 14,518 shares
Form 144 ↗
Aug 25, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
22,500$787.5K10b5-1Aug 25, 2026Form 4 ↗
2 days later · 9,050 shares
Form 144 ↗
Aug 24, 2026Kristen M. Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
24,602$841.4K—Aug 24, 2026Form 4 ↗
2 days later · 24,602 shares
Form 144 ↗
Aug 14, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
25,792$764.0K10b5-1Aug 14, 2026Form 4 ↗
4 days later · 7,232 shares
Form 144 ↗
Aug 14, 2026Franklin M. Stokes
Officer
CSTL
Castle Biosciences, Inc.
24,908$741.5K—Aug 14, 2026Form 4 ↗
4 days later · 24,908 shares
Form 144 ↗
Jul 31, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
22,500$630.0K10b5-1Jul 31, 2026Form 4 ↗
4 days later · 19,040 shares
Form 144 ↗
Jul 31, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
67,662$1.9M10b5-1Jul 31, 2026Form 4 ↗
4 days later · 28,646 shares
Form 144 ↗
Jul 1, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
23,844$589.2K10b5-1Jul 1, 2026Form 4 ↗
5 days later · 9,836 shares
Form 144 ↗
Jun 16, 2026Kristen Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
29,911$618.0K10b5-1Jun 16, 2026Form 4 ↗
2 days later · 8,587 shares
Form 144 ↗
Jun 1, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
14,008$293.7K10b5-1Jun 1, 2026Form 4 ↗
2 days later · 9,836 shares
Form 144 ↗
May 7, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
14,008$269.5K10b5-1May 7, 2026Form 4 ↗
4 days later · 9,836 shares
Form 144 ↗
Mar 26, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
18,180$449.0K10b5-1Mar 26, 2026Form 4 ↗
4 days later · 4,172 shares
Form 144 ↗
Mar 12, 2026Tobin Juvenal
Chief Commercial Officer
CSTL
Castle Biosciences, Inc.
20,863$528.3K10b5-1Mar 12, 2026Form 4 ↗
4 days later · 20,863 shares
Form 144 ↗
Mar 11, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
94,204$2.5M10b5-1Mar 11, 2026Form 4 ↗
2 days later · 44,125 shares
Form 144 ↗
Mar 5, 2026Franklin Stokes
Officer
CSTL
Castle Biosciences, Inc.
6,001$169.0K10b5-1Mar 5, 2026Form 4 ↗
4 days later · 6,001 shares
Form 144 ↗
Mar 5, 2026Gordon B. Cole
Director
CSTL
Castle Biosciences, Inc.
7,403$210.7K—Mar 5, 2026Form 4 ↗
4 days later · 7,403 shares
Form 144 ↗
Mar 3, 2026Franklin Stokes
Officer
CSTL
Castle Biosciences, Inc.
7,000$195.9K10b5-1Mar 3, 2026Form 4 ↗
2 days later · 7,000 shares
Form 144 ↗
Jan 5, 2026Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
12,051$470.0K10b5-1Jan 5, 2026Form 4 ↗
2 days later · 4,017 shares
Form 144 ↗
Dec 17, 2025Kristen M. Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
14,888$581.4K—Dec 17, 2025Form 4 ↗
2 days later · 14,888 shares
Form 144 ↗
Dec 15, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
33,685$1.3M10b5-1Dec 15, 2025Form 4 ↗
2 days later · 32,346 shares
Form 144 ↗
Dec 11, 2025Tobin Juvenal
Officer
CSTL
Castle Biosciences, Inc.
13,200$494.7K—Dec 11, 2025Form 4 ↗
4 days later · 13,200 shares
Form 144 ↗
Dec 11, 2025Franklin M. Stokes
Officer
CSTL
Castle Biosciences, Inc.
4,496$168.4K—Dec 11, 2025Form 4 ↗
4 days later · 4,496 shares
Form 144 ↗
Nov 25, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
10,712$427.7K10b5-1Nov 25, 2025Form 4 ↗
1 day later · 5,115 shares
Form 144 ↗
Nov 24, 2025Tobin Juvenal
Officer
CSTL
Castle Biosciences, Inc.
1,301$49.3K10b5-1Nov 24, 2025Form 4 ↗
21 days later · 13,200 shares
Form 144 ↗
Nov 12, 2025Kristen M. Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
18,932$657.7K10b5-1Nov 11, 2025Form 4 ↗
37 days later · 14,888 shares
Form 144 ↗
Nov 12, 2025Tobin Juvenal
Officer
CSTL
Castle Biosciences, Inc.
5,393$187.4K10b5-1Nov 11, 2025Form 4 ↗
1 day later · 700 shares
Form 144 ↗
Nov 12, 2025Franklin Stokes
Officer
CSTL
Castle Biosciences, Inc.
5,388$187.2K10b5-1Nov 11, 2025Form 4 ↗
33 days later · 4,496 shares
Form 144 ↗
Nov 4, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
13,390$423.5K10b5-1Nov 4, 2025Form 4 ↗
2 days later · 9,373 shares
Form 144 ↗
Oct 2, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
4,017$89.3K10b5-1Oct 2, 2025Form 4 ↗
4 days later · 1,339 shares
Form 144 ↗
Aug 27, 2025Kristen M. Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
18,007$384.4K—Aug 27, 2025Form 4 ↗
2 days later · 18,007 shares
Form 144 ↗
Aug 27, 2025Kristen M. Oelschlager
Officer
CSTL
Castle Biosciences, Inc.
25,355$541.3K10b5-1Aug 27, 2025Form 4 ↗
2 days later · 18,007 shares
Form 144 ↗
Aug 15, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
4,017$80.7K10b5-1Aug 15, 2025Form 4 ↗
4 days later · 1,339 shares
Form 144 ↗
Aug 13, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
43,019$835.0K10b5-1Aug 13, 2025Form 4 ↗
2 days later · 43,019 shares
Form 144 ↗
Jun 27, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
16,932$344.6K10b5-1Jun 27, 2025Form 4 ↗
4 days later · 22,576 shares
Form 144 ↗
Apr 8, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
16,932$314.9K10b5-1Apr 8, 2025Form 4 ↗
2 days later · 5,644 shares
Form 144 ↗
Mar 7, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
34,821$703.7K10b5-1Mar 7, 2025Form 4 ↗
4 days later · 29,177 shares
Form 144 ↗
Mar 4, 2025Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
5,687$126.4K10b5-1Mar 4, 2025Form 4 ↗
2 days later · 5,687 shares
Form 144 ↗
Feb 5, 2025Daniel Bradbury
Officer
CSTL
Castle Biosciences, Inc.
7,867$221.2K10b5-1Feb 5, 2025Form 4 ↗
2 days later · 7,867 shares
Form 144 ↗
Jan 6, 2025Tobin Juvenal
Officer
CSTL
Castle Biosciences, Inc.
2,230$63.8K10b5-1Jan 6, 2025Form 4 ↗
2 days later · 2,230 shares
Form 144 ↗
Dec 13, 2024Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
48,303$1.4M10b5-1Dec 13, 2024Form 4 ↗
4 days later · 26,123 shares
Form 144 ↗
Dec 3, 2024Daniel Bradbury
Officer
CSTL
Castle Biosciences, Inc.
15,734$484.3K10b5-1Dec 3, 2024Form 4 ↗
2 days later · 7,867 shares
Form 144 ↗
Nov 14, 2024Frank Stokes
Officer
CSTL
Castle Biosciences, Inc.
6,923$217.9K10b5-1Nov 15, 2024Form 4 ↗
5 days later · 6,923 shares
Form 144 ↗
Nov 4, 2024Derek Maetzold
Officer
CSTL
Castle Biosciences, Inc.
15,381$517.4K10b5-1Nov 4, 2024Form 4 ↗
2 days later · 5,127 shares
Form 144 ↗

The newest 50 items, most recent first. Every row links to the notice on the SEC's site, and to the Form 4 when we found one. Updated Nov 15, 2026, 6:47 PM EST.

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