Dear Valued Shareholder,

This is [agent] with Alliance Advisors, on behalf of your Janus Henderson ETF.

At the meeting, shareholders are being asked to approve a new investment advisory agreement to allow Janus Henderson to continue managing your fund following the proposed acquisition of Janus Henderson by Trian and General Catalyst.

The terms of your fund's new advisory agreement are substantially identical to those of your fund's current advisory agreements. There is no change in the fee rate payable by your fund to the adviser.

Need help? Call 1-855-206-2309. To vote online, please click the following link.

[Individual Link here]

To review the meeting proposal, please click the following link:

https://www.sec.gov/Archives/edgar/data/1500604/000119312526085616/d24816ddef14a.htm

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