Insider trading

Period: 120 months Stock: BBIO + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

234 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.

234 decisions over 120 months
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.

234 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.

234 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.
234 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
234 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.

234 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
9 Oct 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 2×
$2.19M 40,000 at 54.80
4.6%
Planned (10b5-1)
8 Oct 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 4×
$2.19M 40,000 at 54.78
4.5%
Planned (10b5-1)
5 Sep 2025
MCCORMICK FRANK Director
Sold at will
$3.93M 74,000 at 53.16
47.1%
Not planned
5 Sep 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 6×
$2.12M 40,000 at 53.05
4.4%
Planned (10b5-1)
4 Sep 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 4×
$2.05M 40,000 at 51.34
4.3%
Planned (10b5-1)
21 Aug 2025
Trimarchi Thomas President and CFO
Sold at will
$2.09M 42,237 at 49.48
9.1%
Not planned
20 Aug 2025
Kumar Neil Chief Executive Officer
Sold on a plan 2×
$1.28M 26,156 at 48.82
10.5%
Planned (10b5-1)
18 Aug 2025
Trimarchi Thomas President and CFO
Sold on a plan 2×
$871.72K 17,353 at 50.23
3.6%
Planned (10b5-1)
11 Aug 2025
HOMCY CHARLES J Director
Sold on a plan
$2.40M 50,000 at 48.00
5.2%
Planned (10b5-1)
8 Aug 2025
HOMCY CHARLES J Director
Sold on a plan 2×
$11.51M 250,000 at 46.05
20.5%
Planned (10b5-1)
8 Aug 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 4×
$1.85M 40,000 at 46.22
4.2%
Planned (10b5-1)
7 Aug 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 4×
$1.82M 40,000 at 45.45
4.1%
Planned (10b5-1)
7 Aug 2025
Apuli Maricel Chief Accounting Officer
Sold at will
$45.44K 1,000 at 45.44
0.7%
Not planned
5 Aug 2025
Ellis Andrea Director
Sold on a plan
$841.18K 17,167 at 49.00
48.0%
Planned (10b5-1)
2 Jul 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 2×
$1.71M 40,000 at 42.73
4.0%
Planned (10b5-1)
1 Jul 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 4×
$1.70M 40,000 at 42.54
3.9%
Planned (10b5-1)
27 Jun 2025
VIKING GLOBAL INVESTORS LP 10% owner · indirect
Sold at will
$154.00M 3,500,000 at 44.00
15.9%
Not planned
26 Jun 2025
Valantine Hannah Director
Sold at will 2×
$106.50K 2,418 at 44.05
24.5%
Not planned
26 Jun 2025
Valantine Hannah Director · indirect
Sold at will 2×
$100.82K 2,289 at 44.05
85.2%
Sold half or more
24 Jun 2025
MCCORMICK FRANK Director · indirect
Sold on a plan
$4.42M 100,000 at 44.23
10.2%
Planned (10b5-1)
10 Jun 2025
Valantine Hannah Director
Sold on a plan
$171.68K 4,292 at 40.00
70.9%
Sold half or more
20 May 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan
$2.50M 75,000 at 33.40
1.5%
Planned (10b5-1)
19 May 2025
Kumar Neil Chief Executive Officer
Sold on a plan 2×
$871.76K 26,156 at 33.33
10.7%
Planned (10b5-1)
12 May 2025
KKR Genetic Disorder L.P. 10% owner · indirect
Sold at will
$205.20M 6,000,000 at 34.20
31.2%
Not planned
2 May 2025
Lo Andrew Director · indirect
Sold at will
$3.85M 100,000 at 38.50
48.6%
Not planned
2 May 2025
Apuli Maricel Chief Accounting Officer
Sold at will
$39.51K 1,026 at 38.51
0.7%
Not planned
22 Apr 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan
$2.56M 75,000 at 34.11
1.5%
Planned (10b5-1)
14 Apr 2025
Ellis Andrea Director
Sold on a plan
$350.00K 10,000 at 35.00
45.5%
Planned (10b5-1)
1 Apr 2025
Ellis Andrea Director
Sold on a plan
$1.02M 30,000 at 34.05
71.4%
Sold half or more
25 Mar 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan
$2.76M 75,000 at 36.87
1.5%
Planned (10b5-1)
6 Mar 2025
Valantine Hannah Director
Sold on a plan
$419.50K 12,875 at 32.58
88.0%
Sold half or more
5 Mar 2025
KKR Genetic Disorder L.P. 10% owner · indirect
Sold at will
$197.76M 6,000,000 at 32.96
23.8%
Not planned
25 Feb 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 2×
$2.52M 75,000 at 33.57
1.5%
Planned (10b5-1)
25 Feb 2025
STEPHENSON BRIAN C CFO and Treasurer
Sold on a plan 2×
$282.11K 8,500 at 33.19
7.7%
Planned (10b5-1)
19 Feb 2025
Kumar Neil Chief Executive Officer
Sold on a plan 2×
$1.14M 31,543 at 36.14
13.0%
Planned (10b5-1)
19 Feb 2025
STEPHENSON BRIAN C Secretary, Treasurer & CFO
Sold on a plan
$149.97K 4,148 at 36.16
3.9%
Planned (10b5-1)
31 Jan 2025
VIKING GLOBAL INVESTORS LP 10% owner · indirect
Sold at will
$106.99M 3,065,616 at 34.90
12.2%
Not planned
29 Jan 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan 2×
$9.93M 273,068 at 36.35
5.1%
Planned (10b5-1)
28 Jan 2025
Kumar Neil Chief Executive Officer · indirect
Sold on a plan
$11.86M 326,932 at 36.29
5.7%
Planned (10b5-1)
28 Jan 2025
STEPHENSON BRIAN C Secretary, Treasurer & CFO
Sold on a plan
$2.47M 68,000 at 36.29
42.0%
Planned (10b5-1)
19 Nov 2024
Kumar Neil Chief Executive Officer
Sold on a plan 2×
$613.83K 27,389 at 22.41
0.6%
Planned (10b5-1)
19 Nov 2024
STEPHENSON BRIAN C Secretary, Treasurer & CFO
Sold on a plan
$93.14K 4,156 at 22.41
4.2%
Planned (10b5-1)
13 Sep 2024
KKR Genetic Disorder L.P. 10% owner · indirect
Sold at will
$149.35M 5,800,000 at 25.75
18.7%
Not planned
19 Aug 2024
Kumar Neil Chief Executive Officer
Sold on a plan 2×
$676.26K 27,389 at 24.69
0.6%
Planned (10b5-1)
19 Aug 2024
STEPHENSON BRIAN C Secretary, Treasurer & CFO
Sold on a plan 2×
$102.59K 4,155 at 24.69
4.7%
Planned (10b5-1)
4 Jun 2024
Scott Randal W. Director · indirect
Sold on a plan
$46.95K 1,500 at 31.30
27.3%
Planned (10b5-1)
3 Jun 2024
Scott Randal W. Director · indirect
Sold on a plan 2×
$28.84K 1,000 at 28.84
15.4%
Planned (10b5-1)
1 Mar 2024
Scott Randal W. Director · indirect
Sold on a plan
$85.00K 2,500 at 34.00
27.8%
Planned (10b5-1)
15 Feb 2024
Valantine Hannah Director
Sold on a plan
$110.04K 2,915 at 37.75
62.3%
Sold half or more
16 Jan 2024
Valantine Hannah Director
Sold on a plan
$110.68K 2,915 at 37.97
62.3%
Sold half or more
Showing 51–100 of 234. ← Newer Page 2 of 5 Older →