Insider trading

Period: 120 months Stock: FULC Role: 10% owners × + 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.

18 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.

18 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.

18 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.

18 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.
18 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
18 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.

18 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
17 Jul 2026
TANG KEVIN 10% owner · indirect
Bought
$179.33K 50,945 at 3.52
0.7%
16 Jul 2026
TANG KEVIN 10% owner · indirect
Bought
$415.35K 116,671 at 3.56
1.7%
15 Jul 2026
TANG KEVIN 10% owner · indirect
Bought
$382.26K 107,377 at 3.56
1.6%
14 Jul 2026
TANG KEVIN 10% owner · indirect
Bought 2×
$462.91K 129,603 at 3.57
1.9%
Largest buy in 3 yrs
13 Jul 2026
TANG KEVIN 10% owner · indirect
Bought
$45.90K 12,966 at 3.54
0.2%
First buy on file
8 Dec 2025
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Sold at will 3×
$58.38M 4,175,139 at 13.98
40.8%
Not planned
20 Jan 2023
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$25.00M 1,923,076 at 13.00
19.9%
Largest buy in 3 yrs
4 Jan 2023
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought 2×
$1.31M 180,703 at 7.28
1.9%
27 Dec 2022
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$24.51K 4,089 at 5.99
0.0%
19 Dec 2022
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$582.81K 98,787 at 5.90
1.1%
16 Dec 2022
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$7.27M 1,341,420 at 5.42
16.6%
Largest buy in 3 yrs
15 Dec 2022
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$1.30M 237,029 at 5.50
3.0%
14 Dec 2022
RA CAPITAL MANAGEMENT, L.P. 10% owner · indirect
Bought
$4.50M 824,600 at 5.46
11.8%
First buy on file
22 Jul 2019
Casdin Capital, LLC 10% owner · indirect
Bought 3×
$2.22M 140,000 at 15.84
30.2%
First buy on file
22 Jul 2019
Bought
$1.90M 118,750 at 16.00
26.9%
First buy on file
22 Jul 2019
Sanofi 10% owner · indirect
Bought
$1.50M 93,750 at 16.00
20.2%
First buy on file
22 Jul 2019
Bought
$1.30M 81,250 at 16.00
1.4%
First buy on file
22 Jul 2019
Bought
$1.30M 81,250 at 16.00
3.6%
First buy on file
Showing 1–18 of 18.