Skip to main content
Livermore
Livermore
ZHEN

Janus Henderson Group PLC

SEC CIK
0001274173
Latest filing
May 18, 2026

CERT holding history

Certara, Inc. in every 13F filed by Janus Henderson Group PLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

CERT overviewAll 13F holders of CERTFull Q1 2026 holdings

Shares (Q1 2026)
57,014
Value
$324.7K
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of CERT by Janus Henderson Group PLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 202657,014$324.7K<0.1%00.0%UnchangedHolders
Q4 202557,014$502.0K<0.1%00.0%UnchangedHolders
Q3 202557,014$697.0K<0.1%00.0%UnchangedHolders
Q2 202557,014$666.8K<0.1%00.0%UnchangedHolders
Q1 202557,014$565.3K<0.1%00.0%UnchangedHolders
Q4 202457,014$607.5K<0.1%00.0%UnchangedHolders
Q3 202457,014$666.8K<0.1%−132,856−70.0%ReducedHolders
Q2 2024189,870$2.63M<0.1%+62,471+49.0%AddedHolders
Q1 2024127,399$2.28M<0.1%+3,578+2.9%AddedHolders
Q4 2023123,821$2.18M<0.1%+2,992+2.5%AddedHolders
Q3 2023120,829$1.76M<0.1%+1,930+1.6%AddedHolders
Q2 2023118,899$2.16M<0.1%−504,519−80.9%ReducedHolders
Q1 2023623,418$15.0M<0.1%−158,285−20.2%ReducedHolders
Q4 2022781,703$12.6M<0.1%+263,611+50.9%AddedHolders
Q3 2022518,092$6.88M<0.1%+483,184+1,384.2%AddedHolders
Q2 202234,908$749.0K<0.1%+314+0.9%AddedHolders
Q1 202234,594$742.0K<0.1%−762−2.2%ReducedHolders
Q4 202135,356$1.00M<0.1%+14,915+73.0%AddedHolders
Q3 202120,441$676.0K<0.1%+20,441NewHolders
Q2 20210$00.0%−300,000−100.0%Sold outHolders
Q1 2021300,000$8.19M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.