Insider trading

Period: 120 months Stock: JBIO Plan: Not on a plan × + 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.

67 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.

67 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.

67 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.

67 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.
67 decisions over 120 months Remove this filter
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
67 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.

67 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
16 May 2025
Frohlich Tom Chief Executive Officer
Bought
$44.40K 6,000 at 7.40
opened
First buy on file
17 Jun 2024
RA CAPITAL MANAGEMENT, L.P. Director · indirect
Bought
$1.55M 928,110 at 1.67
13.3%
2 May 2024
Verwijs Marinus CHIEF TECHNICAL OFFICER
Sold at will
$41.63K 1,981 at 21.02
100%
Sold half or more
9 Apr 2024
GRAYZEL DAVID S. Director · indirect
Sold at will
$334.48K 11,882 at 28.15
45.0%
Not planned
1 Nov 2023
Verwijs Marinus CHIEF TECHNOLOGY OFFICER
Sold at will
$10.15K 970 at 10.46
100%
Sold half or more
3 May 2023
Verwijs Marinus SENIOR VICE PRESIDENT, CMC
Sold at will
$15.78K 759 at 20.79
100%
Sold half or more
21 Apr 2023
Gillies Hunter CHIEF MEDICAL OFFICER
Sold at will
$78.00K 4,000 at 19.50
67.1%
Sold half or more
6 Apr 2023
Dake Benjamin T SEE REMARKS
Sold at will
$186.83K 10,283 at 18.17
100%
Sold half or more
5 Apr 2023
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold at will 2×
$40.94K 2,250 at 18.20
58.3%
Sold half or more
3 Apr 2023
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold at will 2×
$290.92K 15,000 at 19.39
100%
Sold half or more
6 Mar 2023
Dake Benjamin T SEE REMARKS
Sold, plan not stated 2×
$243.95K 10,282 at 23.73
100%
Sold half or more
6 Mar 2023
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated 2×
$53.44K 2,250 at 23.75
58.3%
Sold half or more
1 Mar 2023
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold, plan not stated 4×
$357.20K 15,000 at 23.81
100%
Sold half or more
6 Feb 2023
Dake Benjamin T SEE REMARKS
Sold, plan not stated 2×
$252.88K 10,284 at 24.59
100%
Sold half or more
6 Feb 2023
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated
$54.61K 2,250 at 24.27
58.3%
Sold half or more
1 Feb 2023
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$340.20K 15,000 at 22.68
100%
Sold half or more
6 Jan 2023
Dake Benjamin T SEE REMARKS
Sold, plan not stated 2×
$267.20K 10,284 at 25.98
100%
Sold half or more
5 Jan 2023
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated
$59.40K 2,250 at 26.40
58.3%
Sold half or more
3 Jan 2023
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold, plan not stated 4×
$406.08K 15,000 at 27.07
100%
Sold half or more
12 Dec 2022
Eldridge George A SEE REMARKS
Sold, plan not stated
$300.43K 10,000 at 30.04
83.6%
Sold half or more
12 Dec 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 3×
$60.59K 2,059 at 29.43
100%
Sold half or more
9 Dec 2022
Eldridge George A SEE REMARKS
Sold, plan not stated 2×
$96.77K 3,969 at 24.38
66.9%
Sold half or more
9 Dec 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$9.86K 394 at 25.03
100%
Sold half or more
8 Dec 2022
Eldridge George A SEE REMARKS
Sold, plan not stated 3×
$286.70K 12,011 at 23.87
86.0%
Sold half or more
8 Dec 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 4×
$226.45K 10,000 at 22.64
100%
Sold half or more
7 Dec 2022
Eldridge George A SEE REMARKS
Sold, plan not stated 2×
$230.08K 11,637 at 19.77
85.6%
Sold half or more
6 Dec 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 4×
$706.77K 40,000 at 17.67
100%
Sold half or more
5 Dec 2022
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated
$39.11K 2,250 at 17.38
58.3%
Sold half or more
1 Dec 2022
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold, plan not stated
$270.00K 15,000 at 18.00
100%
Sold half or more
30 Nov 2022
Eldridge George A SEE REMARKS
Sold, plan not stated
$1.62K 85 at 19.06
4.2%
23 Nov 2022
Eldridge George A SEE REMARKS
Sold, plan not stated
$24.05K 1,261 at 19.07
39.1%
22 Nov 2022
Eldridge George A SEE REMARKS
Sold, plan not stated
$3.31K 174 at 19.01
8.2%
21 Nov 2022
Eldridge George A SEE REMARKS
Sold, plan not stated
$38.00 2 at 19.00
0.1%
18 Nov 2022
Eldridge George A SEE REMARKS
Sold, plan not stated 2×
$16.81K 861 at 19.52
30.5%
11 Nov 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 3×
$128.24K 6,198 at 20.69
100%
Sold half or more
10 Nov 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$36.17K 1,800 at 20.10
100%
Sold half or more
9 Nov 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$250.68K 14,000 at 17.91
100%
Sold half or more
8 Nov 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$151.46K 8,373 at 18.09
100%
Sold half or more
7 Nov 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 4×
$322.89K 17,627 at 18.32
100%
Sold half or more
7 Nov 2022
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated 4×
$43.19K 2,250 at 19.20
58.3%
Sold half or more
2 Nov 2022
Verwijs Marinus SENIOR VICE PRESIDENT, CMC
Sold, plan not stated
$21.35K 1,130 at 18.89
100%
Sold half or more
1 Nov 2022
NOYES TIMOTHY P CHIEF EXECUTIVE OFFICER
Sold, plan not stated
$20.24K 1,038 at 19.50
100%
Sold half or more
18 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$120.29K 5,705 at 21.08
100%
Sold half or more
17 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$84.38K 4,185 at 20.16
100%
Sold half or more
14 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated
$2.21K 110 at 20.05
100%
Sold half or more
10 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 2×
$83.68K 4,954 at 16.89
100%
Sold half or more
7 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 2×
$168.46K 10,520 at 16.01
100%
Sold half or more
6 Oct 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 3×
$206.34K 13,040 at 15.82
100%
Sold half or more
5 Oct 2022
NIVEN RALPH CHIEF SCIENTIFIC OFFICER
Sold, plan not stated 2×
$35.45K 2,250 at 15.75
58.3%
Sold half or more
12 Sep 2022
Dake Benjamin T SEE REMARKS
Sold, plan not stated 3×
$130.31K 7,520 at 17.33
100%
Sold half or more
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