Official portrait: unitedstates/images (public domain; source GPO Member Guide)
Rep. Brian J. Mast (R-FL)
House · Republican (most recent term) · FL-21 · in Congress 2017–present · Bioguide ID M001199
Party history: R 2017–present. Source: term data in unitedstates/congress-legislators (CC0); party shown is as recorded per term there.
Estimated net worth (from public disclosures)
| Estimate | Report year | Low | Mid | High |
|---|---|---|---|---|
| (a) Estimated net worth before entering office (report year 2016) | 2016 | $99,008 | $204,504 | $310,000 |
| (b) Latest net worth estimate | 2025 | $100,003 | $550,501 | $1,000,999 |
| (c) Estimated gain / loss, nominal dollars, 2016 → 2025 (9 years spanned) | 2016–2025 | −$209,997 | +$345,997 | +$901,991 |
Gain Low = latest Low − earliest High; Gain High = latest High − earliest Low (widest possible spread); Mid = latest Mid − earliest Mid.
Reliability flags (net worth): none for these two endpoints. Included in the recommended dollar-gain ranking.
Net worth by report year (mid; Low–High)
| Report year | Assets (mid) | Liabilities (mid) | Net worth mid | Low … High | Status / flags |
|---|---|---|---|---|---|
| 2016 | $204,504 | $0 | $204,504 | $99,008 … $310,000 | computed |
| 2017 | $220,010 | $375,000 | −$154,990 | −$431,979 … $121,999 | computed |
| 2018 | $498,514 | $375,000 | $123,514 | −$282,972 … $529,999 | computed |
| 2019 | $454,015 | $762,501 | −$308,486 | −$851,970 … $234,998 | computed |
| 2020 | $1,059,010 | $1,345,002 | −$285,992 | −$1,191,981 … $619,996 | computed |
| 2021 | $962,006 | $795,001 | $167,006 | −$475,987 … $809,998 | computed |
| 2022 | $1,704,507 | $3,420,002 | −$1,715,494 | −$4,476,986 … $1,045,997 | computed |
| 2023 | $3,825,502 | $3,420,002 | $405,500 | −$4,014,996 … $4,825,997 | computed |
| 2024 | $925,502 | $375,000 | $550,501 | $100,003 … $1,000,999 | computed |
| 2025 | $925,502 | $375,000 | $550,501 | $100,003 … $1,000,999 | computed |
- What this is: Net worth = Schedule A assets (each value range at its midpoint; low–high range shown) minus Schedule D liabilities (midpoints / ranges). Low = assets at range floors minus liabilities at range ceilings; Mid = midpoints; High = assets at ceilings minus liabilities at floors. Low and High are outer bounds of the reported ranges, not likely outcomes.
- What it excludes / understates: exact values (only ranges are reported); a personal residence is not reported as an asset (although a mortgage on it may be listed as a liability, which then lowers the estimate); retirement and federal accounts (e.g. Thrift Savings Plan, defined-benefit pensions) are only partly or not reported; assets of excepted/blind trusts, cash held below reporting thresholds, vehicles, household goods and most spouse/dependent items exempt from reporting are not included; liabilities on a personal residence, revolving credit under thresholds and loans to family may be omitted by filers.
- Open-ended top ranges (e.g. “Over $50,000,000”) are counted at their lower bound and flagged, so such values are understated.
- The change is a change in estimated net worth in nominal dollars (no inflation adjustment). It includes salary, gifts, inheritances, business income and re-valuation as well as investment results, and it is subject to range-bracket noise; it is not an investment return and implies nothing about conduct.
Read this first. Members report asset values only as ranges (e.g. “$15,001 – $50,000”), never exact dollars. Every figure below is an estimate computed from range midpoints, not a measured return. Figures cannot be interpreted as investment performance, and they do not show wrongdoing or skill. Methodology and limitations are at the end and in the project README. Sources: public financial disclosure reports filed with the Clerk of the U.S. House of Representatives and/or the Secretary of the Senate (Senate eFD), linked below.
Avg. annual change (geometric, est.)-0.6%
Simple average of years+12.0%
Years estimated6
Best / worst single year2023 +143%
2020 -41%
2020 -41%
Reliability flags: 2/6 years trading-dominated; a year exceeds ±100%; 1 year(s) driven by income/one position/range artefact.
Sensitivity band for the average (all ranges at floor vs. all at ceiling, same holdings both years): -13.1% to +3.7%. This band is narrow because it moves both years together; the true uncertainty is larger — see the per-year “strict envelope” column and the limitations.
Estimated year-over-year change
Bars: midpoint estimate; whisker: same-position floor/ceiling band. Axis clipped to −100%…+150%. Years with insufficient traceable holdings are omitted.
| Year (t−1 → t) | Opening value (mid) | Closing value (mid) | Income (mid) | Buys (mid) | Sales (mid) | Est. gain | Same-position band | Strict envelope | Traced coverage | Status / flags |
|---|---|---|---|---|---|---|---|---|---|---|
| 2016→2017 | $0 | $113,008 | $0 | $152,010 | $8,000 | n/a | n/a … n/a | n/a … n/a | 0% | excluded; not eligible: traced prior-year value below $50,000; many new/exited positions |
| 2017→2018 | $187,008 | $385,510 | $100 | $255,004 | $64,502 | +4.3% | +1.6% … +4.9% | -259% … +268% | 85% | counted; high turnover (buys+sells > 100% of opening value); many new/exited positions |
| 2018→2019 | $450,012 | $292,011 | $201 | $0 | $0 | -35.1% | -50.5% … -30.7% | -134% … +63% | 90% | counted |
| 2019→2020 | $333,010 | $123,502 | $100 | $24,002 | $96,006 | -41.3% | -41.6% … -39.7% | -152% … +69% | 73% | counted; many new/exited positions |
| 2020→2021 | $979,004 | $897,504 | $802 | $32,500 | $0 | -11.6% | -12.5% … -9.4% | -84% … +61% | 92% | counted |
| 2021→2022 | $954,006 | $954,006 | $701 | $0 | $121,004 | +12.8% | +6.3% … +15.6% | -73% … +98% | 99% | counted |
| 2022→2023 | $1,575,502 | $3,825,502 | $100 | $0 | $0 | +142.8% | +47.6% … +190.4% | -35% … +321% | 92% | counted; single position drives the result (range jump) |
| 2023→2024 | $825,502 | $925,502 | $100 | $0 | $0 | +12.1% | +9.1% … +13.6% | -61% … +85% | 22% | excluded; not eligible: traced coverage 22% < 60% |
| 2024→2025 | $175,000 | $175,000 | $100 | $0 | $0 | +0.1% | +0.0% … +0.1% | -86% … +86% | 19% | excluded; not eligible: traced coverage 19% < 60% |
Filings used
Each annual-report year uses one filing (most recently filed version among originals/amendments whose Schedule A row count is ≥ 40% of the largest). Electronic (text) PDFs are parsed. Scanned/image-only filings are OCR-read and used only if they pass the explicit validation gates described in the project README (value/income coverage, two-engine agreement, exact bracket snapping, page completeness, year-to-year position continuity); such years are labelled OCR-derived below. Scanned filings that fail validation are listed as “insufficient data – scanned”.
| Report year | Doc ID | Type | Filed | Schedule A rows | Rows with unparsed value | Source (official filing) / SHA-256 |
|---|---|---|---|---|---|---|
| 2016 | 10014337 | House amendment | 12/12/2016 | 8 | 0 | 10014337.pdfc35e0628ea95af97a7498ae4d83163aed0967a3ec6a37acce06a809f223cc3e3 |
| 2017 | 10050644 | House amendment | 1/11/2023 | 24 | 0 | 10050644.pdfec4ab6ac5795f2eac856c7e1ca881ed176b8453754eb35f713094a52d6b5930a |
| 2018 | 10050645 | House amendment | 1/11/2023 | 33 | 0 | 10050645.pdfcaf5ea578a1335ef71aabcc3785730dfa60b9664079f0368db27f7ffa7842a9e |
| 2019 | 10050647 | House amendment | 1/11/2023 | 43 | 0 | 10050647.pdf31505e8bb889863fecb9ee97596fc756ce4b3a0097b31b43c7fe3516f3e037b4 |
| 2020 | 10050648 | House amendment | 1/11/2023 | 56 | 0 | 10050648.pdfeb72375b30be7a2150342e4e372cf6228fba6b40a54a68c701f43b5f23c6cc45 |
| 2021 | 10050649 | House amendment | 1/11/2023 | 22 | 0 | 10050649.pdf3e0744435b300cfe2940582391193b0e002acb6a2ba6f5cea1023ba9fc3f11c1 |
| 2022 | 10053795 | House annual | 8/9/2023 | 14 | 0 | 10053795.pdff93d8b2bea474fcdeb619e2f0bca522dfa82c453bdb1f679062137f73f42bda9 |
| 2023 | 10061066 | House annual | 7/25/2024 | 4 | 0 | 10061066.pdfa3bcccfe7cc823b8d40dcd114a82215d1d8fe6e0bcb8f0b3c2da4031a5276d20 |
| 2024 | 10068357 | House annual | 8/13/2025 | 3 | 0 | 10068357.pdf5d4f6076b9760f6480024c827cd4f78c9c66ded310e1085e7746a12766a307c4 |
| 2025 | 10076430 | House annual | 8/13/2026 | 3 | 0 | 10076430.pdfd6488782828cb587d06c5804bb166df3c22f2b1e82c282bb4cf1a58aac87eb50 |
Largest movers 2020→2021
| Position (as written in filing) | Owner | Kind | Opening range(s) | Closing range(s) | Buys (mid) | Sales (mid) |
|---|---|---|---|---|---|---|
| MS Joint A/C ⇒ Ideal Power Inc. (IPWR) [ST] | — | held | $15,001 - $50,000 | None | $0 | $0 |
| MS Joint A/C ⇒ Tilray Brands, Inc. - Class 2 (TLRY) [ST] | — | held | $15,001 - $50,000 | $1,001 - $15,000 | $0 | $0 |
| Morgan Stanley Maverick Mast UTMA/FL ⇒ Virgin Galactic Holdings, Inc. (SPCE) [ST] | — | new | — | $1,001 - $15,000 | $32,500 | $0 |
| MS Joint A/C ⇒ SmileDirectClub, Inc. (SDC) [ST] | — | held | $15,001 - $50,000 | $1,001 - $15,000 | $0 | $0 |
| Morgan Stanley Magnum Mast UTMA/FL ⇒ | — | held | $1,001 - $15,000; None | None | $0 | $0 |
| MS Joint A/C ⇒ IShares Russell 2000 ETF (IWM) [EF] | — | held | $15,001 - $50,000 | $15,001 - $50,000 | $0 | $0 |
| USAA Checking and Savings Accounts [BA] | — | held | $50,001 - $100,000 | $50,001 - $100,000 | $0 | $0 |
| Brian J Mast Roth IRA ⇒ JP Morgan Income Builder A [MF] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $0 |
Largest movers 2021→2022
| Position (as written in filing) | Owner | Kind | Opening range(s) | Closing range(s) | Buys (mid) | Sales (mid) |
|---|---|---|---|---|---|---|
| MS Joint A/C ⇒ IShares Russell 2000 ETF (IWM) [EF] | — | held | $15,001 - $50,000 | $15,001 - $50,000 | $0 | $32,500 |
| MS Joint A/C ⇒ urban-gro, Inc. (UGRO) [ST] | — | held | $15,001 - $50,000 | $15,001 - $50,000 | $0 | $32,500 |
| MS Joint A/C ⇒ Tilray Brands, Inc. - Class 2 (TLRY) [ST] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
| Morgan Stanley Maverick Mast UTMA/FL ⇒ Virgin Galactic Holdings, Inc. (SPCE) [ST] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
| Brian J Mast IRA ⇒ Clearbridge Aggressive Growth A [MF] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
| MS Joint A/C ⇒ SmileDirectClub, Inc. (SDC) [ST] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
| Morgan Stanley Magnum Mast UTMA/FL ⇒ Virgin Galactic Holdings, Inc. (SPCE) [ST] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
| Brian J Mast IRA ⇒ Davis Opportunity A [MF] | — | held | $1,001 - $15,000 | $1,001 - $15,000 | $0 | $8,000 |
Largest movers 2022→2023
| Position (as written in filing) | Owner | Kind | Opening range(s) | Closing range(s) | Buys (mid) | Sales (mid) |
|---|---|---|---|---|---|---|
| 4M Properties of South Florida, LLC ⇒ 9.78 Acre Property in Fort Pierce, FL [RP] | — | held | $500,001 - $1,000,000 | $1,000,001 - $5,000,000 | $0 | $0 |
| Stay Salty Studios, 100% Interest [OL] | SP | held | $1 - $1,000 | $1 - $1,000 | $0 | $0 |
| 4M Properties of South Florida, LLC ⇒ Property on Hutchinson Island [RP] | — | held | $500,001 - $1,000,000 | $500,001 - $1,000,000 | $0 | $0 |
| USAA Checking and Savings Accounts [BA] | — | held | $50,001 - $100,000 | $50,001 - $100,000 | $0 | $0 |
Method (summary)
- Schedule A asset rows are read from each annual report; the dollar range for each row is converted to its midpoint. Open-ended top ranges (“Over $50,000,000”) are excluded from the traced set and counted as a coverage loss.
- Positions are matched year to year by owner code (self/SP/DC/JT) + normalised asset name. A position that appears only in year t is included only if Schedule B shows a purchase of it in year t (opening value 0); a position that disappears is included only if Schedule B shows a sale (closing value 0). Otherwise it is excluded as unexplained.
- Estimated gain = (closing − opening + reported income − purchases + sale proceeds) ÷ opening, all at midpoints, for the traced positions. “Capital gains” income is not added again (it is already in value change and sale proceeds).
- A year counts only if traced opening value ≥ $50,000 and traced coverage ≥ 60% of the opening midpoint. A member is ranked only with ≥ 3 such years (exactly 2 = “limited data”, shown but unranked). Average = geometric mean of (1+yearly estimate).
Limitations
- Ranges are wide (up to a factor of 5 or more, and up to $50M+ open-ended); a holding can move between ranges without any real change in value, and stay in a range while moving materially. Yearly estimates are therefore noisy; the “strict envelope” shows the mathematical worst/best case and is typically wider than ±100%.
- Purchases and sales are only disclosed as ranges and only for transactions over $1,000; partial sales, dividend reinvestment, spousal/dependent accounts and retirement-plan funds are reported inconsistently. Excepted/blind trusts, personal residences and certain pensions are not reported at all.
- Filers sometimes change how they list assets (e.g. listing a brokerage account vs. its individual holdings), which can make positions untraceable across years; these are excluded rather than guessed.
- Asset values in an annual report are as of Dec 31 of the reporting year; the report year t−1→t covers that calendar year. Late or amended filings are used when filed; extensions can delay them.
- The text of these reports is machine-parsed from PDFs; parse errors are possible. Every number links back to the cited filing. This is not investment advice.
- Use of these filings is restricted by 5 U.S.C. § 105(c) (no unlawful, commercial or credit-rating purpose, and none for solicitation of money).
Generated 2026-10-01 by an automated pipeline. Data: Office of the Clerk, U.S. House of Representatives (disclosures-clerk.house.gov); member roster: unitedstates/congress-legislators (CC0).