Based on the EV/Sales ratio, Triple Flag is more expensive than Sandstorm and Royal Gold but is cheaper than Osisko and Franco-Nevada ().

Source: https://seekingalpha.com/article/4631936-triple-flag-best-mid-size-royalty-company-reasonably-priced?source=feed_all_articles

Franco-Nevada had a net margin of 53.87% and a return on equity of 10.58%.

Source: https://www.americanbankingnews.com/2023/05/06/franco-nevada-nysefnv-pt-raised-to-180-00.html

Guardian Wealth Advisors LLC bought a new stake in shares of Franco-Nevada in the 3rd quarter worth approximately $25,000.

Source: https://www.etfdailynews.com/2023/04/19/franco-nevada-co-nysefnv-shares-bought-by-natixis-advisors-l-p/

James Investment Research Inc. bought a new stake in Franco-Nevada during the fourth quarter worth approximately $28,000.

Source: https://www.etfdailynews.com/2023/04/25/janney-montgomery-scott-llc-sells-573-shares-of-franco-nevada-co-nysefnv/

Not directly Wheaton or Franco-Nevada level, but in their investor presentation, I do see a subtle hint that they would like to match the level of Royal Gold.

Source: https://seekingalpha.com/article/4582457-sandstorm-gold-high-debt-is-not-a-problem-if-future-cash-flows-are-in-place?source=feed_all_articles