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Musician, songwriter and producer
Dave Stewart
Base case$110M
Estimate confidence
★★★★★
2 out of 5
See what supports this page, how current it is, and where comparable or historical context is available.
Base case is our central scenario. Bear and bull cases show how uncertainty around private holdings, retained proceeds, taxes and liabilities can move the estimate.
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Rankings use the current base-case estimate and show the wider bear-to-bull range on the full list.
Switch scenarios to see how the total and each component move together. The bars show each positive component's share of the estimated assets in that scenario, not audited holdings.
Mark Ronson’s 2020 catalog deal provides a useful ownership split. Hipgnosis acquired 70% of his publishing and writer-share interest across 315 songs, leaving a substantial retained stake in the covered rights.
What is missing is the transaction price. Without disclosed consideration, the 70% sale cannot be translated directly into realized personal proceeds or a precise value for the remaining 30%.
Ronson also continued earning from production, recording and later work outside the sold interest. The explicit ownership split strengthens the estimate, but private pricing and current asset values keep the range wide.
Sources[1][2]A reported salary, company sale or brand valuation is not automatically current personal wealth. We show the pieces that can be tied to retained evidence and keep historical flows separate.
The estimate treats the 70% transaction as an undisclosed liquidity event and separately values retained catalog and production economics. It does not infer a purchase price from streaming counts or the number of compositions.
| Component | Bear | Base | Bull |
|---|---|---|---|
| Modeled retained capital from 70% publishing saleSources[1][2] | $20M | $30M | $45M |
| Modeled retained 30% publishing, production and recording capitalSources[1][2] | $25M | $40M | $65M |
| Estimated net worth | $45M | $70M | $110M |
Hipgnosis acquired 70% of Ronson’s publishing and writer-share interest across 315 songs, but reviewed reporting did not disclose a transaction price. The model therefore ranges retained sale capital instead of assigning a synthetic value.
Sources[1][2]We began retaining comparable estimate snapshots on Sep 18, 2026. Earlier Grizzly Bulls figures are not reconstructed unless a retained snapshot exists.
Estimate history tracking started with the published estimate already in place.
This is the first retained snapshot, so there is no earlier comparable Grizzly Bulls estimate to show yet.
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Numbered citations above link to the retained sources below. External net-worth headlines do not set our estimate.