Insider trading

Period: 120 months Stock: SLDB Role: Other officers × + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

43 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

43 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

43 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

43 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
43 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
43 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

43 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
18 Feb 2026
Howton David T Chief Operating Officer
Sold on a plan
$43.49K 7,469 at 5.82
6.6%
Planned (10b5-1)
18 Feb 2026
Hanrahan Jessie Chief Regulatory Officer
Sold on a plan
$24.07K 4,134 at 5.82
5.3%
Planned (10b5-1)
18 Feb 2026
Herzich Paul Chief Technology Officer
Sold on a plan
$21.06K 3,616 at 5.82
4.7%
Planned (10b5-1)
4 Feb 2026
Howton David T Chief Operating Officer
Sold on a plan
$121.71K 18,894 at 6.44
16.2%
Planned (10b5-1)
4 Feb 2026
Brooks Gabriel Chief Medical Officer
Sold on a plan
$81.27K 12,616 at 6.44
13.0%
Planned (10b5-1)
4 Feb 2026
Hanrahan Jessie Chief Regulatory Officer
Sold on a plan
$79.54K 12,348 at 6.44
14.9%
Planned (10b5-1)
4 Feb 2026
Herzich Paul Chief Technology Officer
Sold on a plan
$70.25K 10,905 at 6.44
13.6%
Planned (10b5-1)
2 Feb 2026
Howton David T Chief Operating Officer
Sold on a plan
$243.13K 37,771 at 6.44
24.4%
Planned (10b5-1)
2 Feb 2026
Brooks Gabriel Chief Medical Officer
Sold on a plan
$182.39K 28,335 at 6.44
22.7%
Planned (10b5-1)
2 Feb 2026
Hanrahan Jessie Chief Regulatory Officer
Sold on a plan
$170.80K 26,535 at 6.44
24.3%
Planned (10b5-1)
2 Feb 2026
Herzich Paul Chief Technology Officer
Sold on a plan
$168.97K 26,250 at 6.44
24.7%
Planned (10b5-1)
3 Dec 2025
Howton David T Chief Operating Officer
Sold on a plan
$25.20K 4,932 at 5.11
13.0%
Planned (10b5-1)
3 Dec 2025
Hanrahan Jessie Chief Regulatory Officer
Sold on a plan
$22.91K 4,483 at 5.11
14.4%
Planned (10b5-1)
3 Dec 2025
Herzich Paul Chief Technology Officer
Sold on a plan
$13.80K 2,701 at 5.11
9.2%
Planned (10b5-1)
20 Oct 2025
Brooks Gabriel Chief Medical Officer
Sold at will
$17.25K 2,895 at 5.96
7.9%
Not planned
14 Feb 2025
Howton David T Chief Operating Officer
Sold on a plan
$22.02K 5,561 at 3.96
18.3%
Planned (10b5-1)
14 Feb 2025
Brooks Gabriel Chief Medical Officer
Sold on a plan
$12.89K 3,256 at 3.96
12.5%
Planned (10b5-1)
14 Feb 2025
Hanrahan Jessie Chief Regulatory Officer
Sold on a plan
$12.19K 3,079 at 3.96
13.8%
Planned (10b5-1)
14 Feb 2025
Herzich Paul Chief Technology Officer
Sold on a plan
$10.64K 2,688 at 3.96
12.8%
Planned (10b5-1)
3 Dec 2024
Howton David T Chief Operating Officer
Sold at will
$28.40K 5,072 at 5.60
24.5%
Not planned
3 Dec 2024
Hanrahan Jessie Chief Regulatory Officer
Sold at will
$25.82K 4,610 at 5.60
24.5%
Not planned
3 Dec 2024
Herzich Paul Chief Technology Officer
Sold at will
$15.55K 2,777 at 5.60
18.6%
Not planned
21 Oct 2024
Brooks Gabriel Chief Medical Officer
Sold at will
$19.00K 2,923 at 6.50
21.0%
Not planned
4 Dec 2023
Howton David T Chief Operating Officer
Sold at will
$14.92K 5,367 at 2.78
41.1%
Not planned
4 Dec 2023
Hanrahan Jessie Chief Regulatory Officer
Sold at will
$13.56K 4,879 at 2.78
41.1%
Not planned
4 Dec 2023
Sold at will
$13.52K 4,890 at 2.77
41.1%
Not planned
4 Dec 2023
Herzich Paul Chief Technology Officer
Sold at will
$8.23K 2,968 at 2.77
41.0%
Not planned
27 Jan 2023
Morris Carl Ashley Chief Scientific Officer
Sold, plan not stated
$3.30K 441 at 7.49
2.2%
14 Mar 2022
Schneider Joel Solomon Zev Chief Operating Officer
Sold, plan not stated 2×
$33.55K 30,504 at 1.10
11.4%
14 Mar 2022
Morris Carl Ashley Chief Scientific Officer
Sold, plan not stated 2×
$24.93K 22,665 at 1.10
8.2%
12 Mar 2021
Morris Carl Ashley Chief Scientific Officer
Sold, plan not stated 2×
$206.95K 23,398 at 8.84
7.8%
12 Mar 2021
Schneider Joel Solomon Zev Chief Operating Officer
Sold, plan not stated 2×
$206.92K 23,398 at 8.84
8.0%
28 Jan 2021
Morris Carl Ashley Chief Scientific Officer
Sold, plan not stated
$21.24K 3,459 at 6.14
1.1%
28 Jan 2021
Schneider Joel Solomon Zev Chief Technology Officer
Sold, plan not stated
$21.15K 3,443 at 6.14
1.2%
28 Jul 2020
HERSCHA LYNETTE Chief Legal Officer
Sold, plan not stated
$12.44K 5,141 at 2.42
3.1%
28 Jul 2020
Schneider Joel Solomon Zev Chief Technology Officer
Sold, plan not stated
$9.78K 4,041 at 2.42
1.4%
28 Jul 2020
Morris Carl Ashley Chief Scientific Officer
Sold, plan not stated
$8.69K 3,591 at 2.42
1.2%
4 Jan 2019
Amorrortu Pedro Alvaro Chief Operating Officer
Sold, plan not stated
$270.62K 9,000 at 30.07
5.4%
3 Dec 2018
Quiroz Jorge Armando Chief Medical Officer
Sold, plan not stated 4×
$1.25M 40,150 at 31.21
15.0%
3 Dec 2018
Amorrortu Pedro Alvaro Chief Operating Officer
Sold, plan not stated 3×
$279.53K 9,000 at 31.06
5.1%
16 Nov 2018
Quiroz Jorge Armando Chief Medical Officer
Sold, plan not stated
$3.49K 100 at 34.90
0.0%
15 Nov 2018
Sold, plan not stated 2×
$678.18K 21,990 at 30.84
14.8%
15 Nov 2018
Amorrortu Pedro Alvaro Chief Operating Officer
Sold, plan not stated 2×
$277.48K 9,000 at 30.83
5.0%
Showing 1–43 of 43.