Insider trading

Period: 120 months Stock: CELC Minimum amount: $1M × + Add filter Clear all
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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.

8 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.

8 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.

8 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.

8 decisions over 120 months Remove this filter
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.
8 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
8 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.

8 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
14 Jul 2026
BAKER BROS. ADVISORS LP Former 10% owner · indirect
Sold at will 2×
$317.75M 3,100,000 at 102.50
87.5%
Sold half or more
4 May 2026
Dalvey David Director · indirect
Sold on a plan
$3.52M 25,000 at 140.68
27.8%
Planned (10b5-1)
4 May 2026
Buller Richard E Director · indirect
Sold on a plan 6×
$1.26M 9,000 at 140.46
57.1%
Sold half or more
27 Jan 2026
Dalvey David Director · indirect
Sold on a plan
$2.40M 20,000 at 120.03
18.2%
Planned (10b5-1)
21 Nov 2025
Dalvey David Director · indirect
Sold on a plan
$1.50M 15,000 at 100.00
12.0%
Planned (10b5-1)
8 Sep 2025
BAKER BROS. ADVISORS LP 10% owner · indirect
Bought 4×
$9.57M 170,100 at 56.27
2.4%
First buy on file
28 Jul 2025
Dalvey David Director · indirect
Sold on a plan 4×
$4.40M 100,000 at 43.98
44.4%
Planned (10b5-1)
9 Dec 2022
Sullivan Brian F. Chief Executive Officer
Bought
$1.50M 260,869 at 5.75
9.5%
First buy on file
Showing 1–8 of 8.