Prossimo Advisors provides portfolio management for individuals and small businesses and selecting other managers.
Prossimo Advisors reports 26 clients. They include 26 high-net-worth individuals. Of its assets, 100.0% ($239M across 101 accounts) are managed with discretion. A wrap fee program the firm both sponsors and manages holds $237M.
| Client type | Clients | Assets |
|---|---|---|
| Individuals (other than HNW) | Fewer than 5 | <1% |
| High-net-worth individuals | 100% | 85% |
| Pension and profit-sharing plans | Fewer than 5 | 2% |
| Charitable organizations | Fewer than 5 | 6% |
| Corporations and other businesses | Fewer than 5 | 7% |
Client shares use reported counts. Client types without a reported count are excluded from that total.
Client breakdown and activity details
| Client type | Clients | Regulatory AUM | AUM share | Avg. per client |
|---|---|---|---|---|
| Individuals (other than HNW) | Fewer than 5 | $1.28M | 0.5% | — |
| High-net-worth individuals | 26 | $202M | 84.6% | $7.76M |
| Pension and profit-sharing plans | Fewer than 5 | $3.91M | 1.6% | — |
| Charitable organizations | Fewer than 5 | $14.3M | 6.0% | — |
| Corporations and other businesses | Fewer than 5 | $17.2M | 7.2% | — |
| Total | 26 | $239M | 100% | — |
- Clients
- Fewer than 5
- Regulatory AUM
- $1.28M
- AUM share
- 0.5%
- Avg. per client
- —
- Clients
- 26
- Regulatory AUM
- $202M
- AUM share
- 84.6%
- Avg. per client
- $7.76M
- Clients
- Fewer than 5
- Regulatory AUM
- $3.91M
- AUM share
- 1.6%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $14.3M
- AUM share
- 6.0%
- Avg. per client
- —
- Clients
- Fewer than 5
- Regulatory AUM
- $17.2M
- AUM share
- 7.2%
- Avg. per client
- —
Total
- Clients
- 26
- Regulatory AUM
- $239M
- AUM share
- 100%
- Avg. per client
- —
- Clients outside the U.S.
- 0%
- Clients advised without assets under management last fiscal year
- 0
- Private funds advised
- 0
Prossimo Advisors charges 0.425%–0.55% for its Asset Management. The brochure does not state whether the rate is annual. The fee is billed in advance and has a $10,000 annual minimum. The brochure also prices one other service, listed under fee details.
Fee details and sources
Other fees
- Family Office and Business Oversight Services
- Generally a fixed annual fee beginning at $60,000 a year, paid quarterly in advance and subject to negotiation; limited cases use a negotiated hourly rate.
Jerry Mirolla owns 50% to 75% of Prossimo Advisors. The leadership team of Prossimo Advisors includes Chief Compliance Officer Katelyn Hunter. It has 4 employees.
Leadership
Katelyn HunterChief Compliance Officer
Jerry MirollaManaging Director
Investment adviser representatives
4 representatives listed in the SEC register as of 9 October 2026.
Staff
- 4 employees
- 4 in advisory functions
- 4 state-registered reps
- Owns 50% to 75% of Prossimo Advisors LLC
Jerry Mirolla
Control person · since July 2017
- Owns 50% to 75% of Prossimo Advisors LLC
Katelyn Hunter
Control person · since May 2019
Prossimo Advisors’ regulatory assets grew 1.7× from $138M (March 2021) to $239M (March 2026); clients rose from 21 to 26 and employees were 4 in both filings.
Figures from each annual filing
| Filed | Regulatory AUM | Clients | Employees | Offices |
|---|---|---|---|---|
| March 2026 | $239M | 26 | 4 | 1 |
| March 2025 | $196M | 27 | 4 | 1 |
| March 2024 | $175M | 26 | 4 | 1 |
| March 2023 | $153M | 26 | 4 | 1 |
| March 2022 | $181M | 26 | 4 | 1 |
| March 2021 | $138M | 21 | 4 | 1 |
Besides its headquarters, Prossimo Advisors has 0 offices, with 1 listed address in California.
California · 1 listed address
- 1150 Osos Street, Suite 208, San Luis ObispoHQ
Contact and registration details
- Legal name
- Prossimo Advisors LLC
- Headquarters
- 1150 Osos Street, Suite 208, San Luis Obispo, CA 93401
- Website
- prossimoadvisors.com
- Phone
- 805-548-2800
- SEC file
- 801-118685
- Structure
- California LLC
- Fiscal year end
- December
Prossimo Advisors uses Charles Schwab ($239M) as custodian for its separately managed accounts. Prossimo Advisors does not have custody of client assets.
- Charles SchwabCharles Schwab & Co., Inc. · San Francisco, CA · $239M100%
At year end, Prossimo Advisors’ separately managed accounts were mostly in stocks (59%) and funds (24%). Its reported 13F holdings for the quarter ended 30 June 2026 total $17.3M across 24 positions; the largest are Vanguard Index Fds (20.8%), Berkshire Hathaway Inc. Del (12.3%) and Nvidia Corporation (7.1%).
What the accounts hold
- Stocks59%
- Funds24%
- Registered funds22%
- Pooled vehicles2%
- Bonds8%
- State and local bonds7%
- Investment grade corporate bonds1%
- Cash9%
Reported 13F holdings
- $17.3M
- Reported 13F value
- 24
- Positions
- 72.0%
- In the 10 largest
- +5.4%
- Value vs. prior quarter
- Vanguard Index Fds · S&P 500 ETF Shs20.8%
- Berkshire Hathaway Inc. Del · CL B New12.3%
- Nvidia Corporation7.1%
- iShares TR · Iboxx HI YD ETF6.1%
- Innovator ETFS Trust · US Eqty Pwr Buf6.1%
- Microsoft Corp.4.9%
- iShares TR · Ishs 5-10yr Invt4.4%
- Schwab Strategic TR · US Tips ETF3.5%
- Apple Inc.3.4%
- iShares TR · Ultra Short Dur3.3%
Together, the ten largest are 72.0% of reported value.
How many clients does Prossimo Advisors have?
Prossimo Advisors has 26 clients and manages $239 million for them, as of March 2026. They include 26 high-net-worth individuals.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 26 March 2026
What services does Prossimo Advisors offer?
Prossimo Advisors provides portfolio management for individuals and small businesses and selecting other managers.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
How much does Prossimo Advisors charge?
Prossimo Advisors charges 0.425%–0.55% for its Asset Management. The brochure does not state whether the rate is annual. The fee is billed in advance and has a $10,000 annual minimum.
Source: PROSSIMO ADV PART2A_2B BROCHURE, filed 26 March 2026
Which custodians does Prossimo Advisors use?
Prossimo Advisors’ separately managed account assets are held at Charles Schwab & Co., Inc. (San Francisco, CA), with $239M. Only custodians holding at least a tenth of those assets are named.
Source: Form ADV Part 1A, Schedule D, Section 5.K.(3), filed 26 March 2026
How many financial advisors does Prossimo Advisors have?
Prossimo Advisors has 4 investment adviser representatives registered with state securities authorities, out of 4 employees, and 4 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
What does Prossimo Advisors invest in?
At the end of its last fiscal year, Prossimo Advisors’ separately managed accounts held 59% exchange-traded equities, 22% registered funds (mutual funds, ETFs, BDCs), 9% cash and equivalents, 7% state and local bonds, 2% pooled vehicles (private funds and similar) and 1% investment grade corporate bonds.
Source: Form ADV Part 1A, Items 5.K.(1) and 7.B, from the SEC's 2 October 2026 data file
Who owns Prossimo Advisors?
Prossimo Advisors’ direct owners are Jerry Mirolla (50% to 75%) and Katelyn Hunter (50% to 75%).
Source: Form ADV Part 1A, Schedules A and B, filed 26 March 2026
How does Prossimo Advisors get paid?
Prossimo Advisors is paid through a percentage of assets under management, hourly charges, fixed fees and other compensation. Its Form ADV lists no commissions or performance-based fees among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file
How do I contact Prossimo Advisors?
Prossimo Advisors’ main office is at 1150 Osos Street, Suite 208, San Luis Obispo, CA 93401. Its phone number is 805-548-2800. Its website is prossimoadvisors.com.