InsiderClue

Insider trading

Period: 120 months Stock: CERT Type of trade: Sold × + Add filter Clear all
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When Periodin use
Who Role
The trade Type of tradein use Minimum amount Plan Share of their own holding
Ownership What the chief executive holds
When

Period

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

1 month 12 months 120 months
102 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.

Anyone CEO CFO Other officers Directors 10% owners
102 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.

Any111 Buys9 Sells102 Cluster buys
102 decisions over 120 months Remove this filter
The trade

Minimum amount

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

Any $100K or more $1M or more $10M or more $100M or more $500M or more
102 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.
Any Discretionary Scheduled (10b5-1) Not stated Not on a plan
102 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
102 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.

102 decisions over 120 months
Stock
Insider
Type ?
Value ↓
Of own stake ↓
Why it stands out
CERT Certara, Inc.
9 Sep 2025
Pedersen Leif E PRESIDENT, CHIEF COMMERCAL OFF
Sold on a plan
$559.37K 51,224 at 10.92
40.9%
Planned (10b5-1)
CERT Certara, Inc.
7 Oct 2024
SMITH PATRICK F PRESIDENT, DRUG DEV SOLUTIONS
Sold on a plan
$59.66K 5,409 at 11.03
9.7%
Planned (10b5-1)
CERT Certara, Inc.
9 Sep 2024
Pedersen Leif E PRESIDENT, CHIEF COMMERCAL OFF
Sold on a plan
$578.32K 51,224 at 11.29
33.9%
Planned (10b5-1)
CERT Certara, Inc.
2 Apr 2024
SMITH PATRICK F PRESIDENT, DRUG DEV SOLUTIONS
Sold on a plan 6×
$243.16K 14,427 at 16.85
22.4%
Planned (10b5-1)
CERT Certara, Inc.
1 Apr 2024
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$54.00K 3,000 at 18.00
1.7%
Planned (10b5-1)
CERT Certara, Inc.
4 Mar 2024
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$54.84K 3,000 at 18.28
1.8%
Planned (10b5-1)
CERT Certara, Inc.
20 Feb 2024
SMITH PATRICK F PRESIDENT, DRUG DEV SOLUTIONS
Sold on a plan
$90.00K 5,000 at 18.00
8.3%
Planned (10b5-1)
CERT Certara, Inc.
12 Feb 2024
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$108.00K 6,000 at 18.00
3.5%
Planned (10b5-1)
CERT Certara, Inc.
26 Dec 2023
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$108.00K 6,000 at 18.00
3.4%
Planned (10b5-1)
CERT Certara, Inc.
11 Sep 2023
Pedersen Leif E PRESIDENT, CHIEF COMMERCAL OFF
Sold on a plan
$747.87K 51,224 at 14.60
28.4%
Planned (10b5-1)
CERT Certara, Inc.
5 Jun 2023
SMITH PATRICK F PRESIDENT, INTEGRATED DRUG DEV
Sold on a plan
$411.69K 19,104 at 21.55
24.2%
Planned (10b5-1)
CERT Certara, Inc.
11 May 2023
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$104.10K 5,000 at 20.82
2.7%
Planned (10b5-1)
CERT Certara, Inc.
14 Apr 2023
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold on a plan
$118.30K 5,000 at 23.66
2.7%
Planned (10b5-1)
CERT Certara, Inc.
6 Mar 2023
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$214.50K 10,000 at 21.45
5.1%
CERT Certara, Inc.
2 Feb 2023
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$300.00K 15,000 at 20.00
7.2%
CERT Certara, Inc.
8 Dec 2022
EQT Avatar Parent L.P. 10% owner · indirect
Sold, plan not stated
$449.32M 29,954,521 at 15.00
100%
Sold half or more
CERT Certara, Inc.
22 Nov 2022
Pedersen Leif E PRESIDENT, SOFTWARE
Sold, plan not stated
$796.52K 51,223 at 15.55
22.6%
CERT Certara, Inc.
15 Nov 2022
SLAINE MASON P Director
Sold, plan not stated
$3.83M 245,793 at 15.57
27.1%
CERT Certara, Inc.
14 Nov 2022
WALSH MATTHEW M Director
Sold, plan not stated
$177.75K 12,059 at 14.74
6.7%
CERT Certara, Inc.
14 Nov 2022
SLAINE MASON P Director
Sold, plan not stated
$64.24K 4,207 at 15.27
0.5%
CERT Certara, Inc.
9 Nov 2022
SMITH PATRICK F PRESIDENT, INTEGRATED DRUG DEV
Sold, plan not stated
$32.18K 2,387 at 13.48
3.1%
CERT Certara, Inc.
16 Aug 2022
EQT Avatar Parent L.P. 10% owner · indirect
Sold, plan not stated
$104.36M 6,004,418 at 17.38
16.7%
CERT Certara, Inc.
16 Aug 2022
SLAINE MASON P Director
Sold, plan not stated
$3.17M 182,475 at 17.38
16.7%
CERT Certara, Inc.
16 Aug 2022
SMITH PATRICK F PRESIDENT, INTEGRATED DRUG DEV
Sold, plan not stated
$177.10K 10,000 at 17.71
11.3%
CERT Certara, Inc.
8 Jun 2022
SMITH PATRICK F PRESIDENT, INTEGRATED DRUG DEV
Sold, plan not stated
$191.60K 10,000 at 19.16
10.2%
CERT Certara, Inc.
2 Jun 2022
SLAINE MASON P Director
Sold, plan not stated 3×
$4.89M 250,000 at 19.56
18.6%
CERT Certara, Inc.
31 May 2022
EQT Avatar Parent L.P. 10% owner · indirect
Sold, plan not stated
$28.50M 1,500,000 at 19.00
4.0%
CERT Certara, Inc.
4 Apr 2022
SMITH PATRICK F PRESIDENT, INTEGRATED DRUG DEV
Sold, plan not stated
$74.72K 3,352 at 22.29
3.3%
CERT Certara, Inc.
17 Mar 2022
SLAINE MASON P Director
Sold, plan not stated
$2.53M 125,000 at 20.25
8.5%
CERT Certara, Inc.
16 Mar 2022
SLAINE MASON P Director
Sold, plan not stated
$2.52M 125,000 at 20.17
7.8%
CERT Certara, Inc.
16 Mar 2022
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated
$1.26M 62,485 at 20.17
2.8%
CERT Certara, Inc.
16 Mar 2022
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$60.00K 3,000 at 20.00
1.4%
CERT Certara, Inc.
11 Mar 2022
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated
$558.28K 27,515 at 20.29
1.2%
CERT Certara, Inc.
18 Feb 2022
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$1.75M 75,000 at 23.35
3.2%
CERT Certara, Inc.
17 Feb 2022
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated 3×
$2.19M 90,000 at 24.32
3.7%
CERT Certara, Inc.
1 Feb 2022
SLAINE MASON P Director
Sold, plan not stated 2×
$1.33M 50,000 at 26.61
3.0%
CERT Certara, Inc.
26 Jan 2022
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$1.90M 75,000 at 25.37
3.0%
CERT Certara, Inc.
26 Jan 2022
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$78.03K 3,000 at 26.01
1.4%
CERT Certara, Inc.
20 Jan 2022
Edge Justin PRES., REGULATORY & ACCESS
Sold, plan not stated
$137.50K 5,000 at 27.50
1.2%
CERT Certara, Inc.
18 Jan 2022
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$137.20K 5,000 at 27.44
2.2%
CERT Certara, Inc.
3 Jan 2022
SLAINE MASON P Director
Sold, plan not stated 2×
$1.43M 50,000 at 28.63
3.0%
CERT Certara, Inc.
27 Dec 2021
Traynor Richard M. SVP AND GENERAL COUNSEL
Sold, plan not stated
$87.90K 3,000 at 29.30
1.3%
CERT Certara, Inc.
23 Dec 2021
CASHMAN JAMES E III Director
Sold, plan not stated
$733.24K 25,111 at 29.20
5.4%
CERT Certara, Inc.
22 Dec 2021
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated
$2.14M 75,000 at 28.58
2.9%
CERT Certara, Inc.
22 Dec 2021
CASHMAN JAMES E III Director
Sold, plan not stated
$576.78K 19,889 at 29.00
4.1%
CERT Certara, Inc.
20 Dec 2021
Choe Jieun W. CHIEF STRATEGY & MARKETING
Sold, plan not stated
$210.00K 7,500 at 28.00
2.9%
CERT Certara, Inc.
17 Dec 2021
Choe Jieun W. CHIEF STRATEGY & MARKETING
Sold, plan not stated
$130.65K 5,000 at 26.13
1.9%
CERT Certara, Inc.
13 Dec 2021
SLAINE MASON P Director
Sold, plan not stated 2×
$1.40M 50,000 at 28.05
2.9%
CERT Certara, Inc.
7 Dec 2021
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$1.94M 70,000 at 27.77
2.6%
CERT Certara, Inc.
3 Dec 2021
Feehery William F CHIEF EXECUTIVE OFFICER
Sold, plan not stated 2×
$1.82M 70,000 at 26.02
2.6%
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