Official portrait of Sen. Mazie K. Hirono (D-HI)
Official portrait: unitedstates/images (public domain; source GPO Member Guide)

Sen. Mazie K. Hirono (D-HI)

House / Senate · Democrat (most recent term) · HI · in Congress 2007–present · Bioguide ID H001042

Party history by chamber: House D 2007–2013, Senate D 2013–present. Source: term data in unitedstates/congress-legislators (CC0); party shown is as recorded per term there.

Estimated net worth (from public disclosures)

EstimateReport yearLowMidHigh
(a) Estimated net worth at the earliest available report (2013); the member entered office earlier, in 20072013$77,041$1,658,519$3,239,997
(b) Latest net worth estimate2025$4,343,058$7,556,528$10,769,998
(c) Estimated gain / loss, nominal dollars, 2013 → 2025 (12 years spanned)2013–2025+$1,103,061+$5,898,009+$10,692,957

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 yearAssets (mid)Liabilities (mid)Net worth midLow … HighStatus / flags
2013$2,816,020$1,157,502$1,658,519$77,041 … $3,239,997computed
2014$3,107,520$1,157,502$1,950,018$265,039 … $3,634,997computed
2015$3,401,020$1,157,502$2,243,518$472,039 … $4,014,997computed
2016$3,643,520$1,157,502$2,486,018$657,039 … $4,314,997computed
2017$4,252,520$1,137,502$3,115,018$1,090,040 … $5,139,997computed
2018$4,338,020$1,125,001$3,213,018$1,161,039 … $5,264,998computed
2019$4,600,020$1,125,001$3,475,018$1,275,039 … $5,674,998computed
2020$5,443,520$925,001$4,518,519$2,082,040 … $6,954,998computed
2021$6,110,020$925,002$5,185,019$2,545,041 … $7,824,997computed
2022$5,759,022$550,001$5,209,020$2,798,043 … $7,619,998computed
2023$8,144,021$550,001$7,594,020$3,393,042 … $11,794,998computed
2024$7,426,526$550,001$6,876,526$3,883,053 … $9,869,998computed
2025$8,106,529$550,001$7,556,528$4,343,058 … $10,769,998computed
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.)+10.7%
Simple average of years+10.9%
Years estimated10
Best / worst single year2017 +21%
2022 -4%

Sensitivity band for the average (all ranges at floor vs. all at ceiling, same holdings both years): +10.8% to +10.6%. 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

-10%0%21%2014201520162017201820192020202120222025

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. gainSame-position bandStrict envelopeTraced coverageStatus / flags
2013→2014$2,670,516$2,886,516$116,461$0$0 +12.4%+11.8% … +12.7%-75% … +100%95%counted
2014→2015$2,776,516$2,860,516$72,954$0$0 +5.7%+5.2% … +6.7%-78% … +90%89%counted
2015→2016$3,336,018$3,603,018$80,955$0$0 +10.4%+9.8% … +12.0%-73% … +94%98%counted
2016→2017$3,379,516$3,980,516$125,406$0$0 +21.5%+21.3% … +22.0%-64% … +107%93%counted
2017→2018$4,236,519$4,330,019$122,906$0$0 +5.1%+4.5% … +5.4%-74% … +85%100%counted
2018→2019$3,532,016$3,745,016$90,406$0$0 +8.6%+6.0% … +9.8%-73% … +90%81%counted
2019→2020$4,271,016$4,964,016$72,806$0$0 +17.9%+17.3% … +19.5%-66% … +102%93%counted
2020→2021$5,395,018$6,029,018$140,307$0$0 +14.4%+13.8% … +15.6%-68% … +96%99%counted
2021→2022$5,826,015$5,459,015$161,657$0$0 -3.5%-4.7% … -3.0%-77% … +70%95%counted
2022→2023$2,607,012$2,782,512$60,058$0$0 +9.0%+8.3% … +10.7%-74% … +92%45%excluded; not eligible: traced coverage 45% < 60%
2023→2024$4,071,010$4,713,010$189,206$0$0 +20.4%+20.2% … +21.0%-61% … +102%50%excluded; not eligible: traced coverage 50% < 60%
2024→2025$5,802,521$6,426,521$344,157$0$0 +16.7%+16.3% … +17.5%-64% … +97%78%counted

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 yearDoc IDTypeFiledSchedule A rowsRows with unparsed valueSource (official filing) / SHA-256
2013cdf9245b-0c70-42a0-bccd-2f09d70f32beSenate annual05/15/2014410Senate eFD report
46639c40b14b5eadcd5e90585f1966c703550188973d5e3efef3a59194860c8b
201413acd712-c5ad-44a7-a0a3-490845a13b44Senate annual05/14/2015390Senate eFD report
874bbad6f6d723c1ad85fec72f411df34e313e889676ef5982175a71d172bc31
201591e18d64-7974-4598-b376-96833a8987a9Senate annual06/06/2016390Senate eFD report
bc4c1c6b64c452619b4609b42ed90ba451a7d5606ee99188bfb8db2dcb565c15
20165dfe74c1-16e5-44ca-a65a-4f35818da603Senate annual05/15/2017390Senate eFD report
79c2ababe02763696b98eeb31d07a5fc6d5750bbb82ed5c065f647b9ee772148
2017f1d2f2e8-b32b-4332-9ec0-98d9c4a940afSenate annual05/15/2018400Senate eFD report
d12ea90b535c9e2fdfc371c882425f040738c5db36c6b084fa2290d4109cb258
20189e762004-17de-40ec-856a-c6d4f0852479Senate annual08/13/2019390Senate eFD report
cf2ec9f5fecd790936f68ace13289bb132a338100ede797094b72c7c32b1847a
20190c80872f-ee54-43d9-96ff-569eebf18b3eSenate annual08/13/2020390Senate eFD report
57f19e43e411cdb709ef709ea5ac81ff107b761daa5ede9c012b1c0f94091968
2020861b60bd-3808-4d4f-aa17-73d973ab21c9Senate annual08/16/2021400Senate eFD report
47ba393d44de1a603043bdc3321de1e19679244ae279cb254a51b4d00032d90c
202113286967-6907-4cd4-91b3-0ed53d884db2Senate annual08/11/2022410Senate eFD report
f785007e0e8f924bcd3711dac32846d17fae9be2b0da8ef9a20d10cf16271d88
202251f60642-862a-4dad-98c2-c4636be69844Senate annual08/11/2023430Senate eFD report
e39f648add379934a493929ea11a0ad2e6e0accf24c03ab76659c5af9bce4bb8
202316dad072-2ce0-4bc8-ad36-c51aca7ec2fbSenate annual08/13/2024420Senate eFD report
22732a2c6d04343cd2219887820c21055344137e2a059e4061315995be802ace
2024328c5acc-8fe4-4a13-bb84-4cc3f37f884fSenate annual08/08/2025530Senate eFD report
f67be00688796ab0d5b06dcd7f3be1b835d6366dbecf2a3cb26a7ee238f109a5
2025563efdcb-07c4-41c1-90d7-b26f808d9dadSenate annual07/28/2026580Senate eFD report
c34621dcb0dd08eb0b5c754fe20a962e1d1c078f57cd264673dff914ec73de48

Largest movers 2020→2021

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
CTCAX - Columbia Global Technology Growth Fund Class AJTheld$100,001 - $250,000$250,001 - $500,000$0$0
PGGAX-Principal Large Cap Growth I AJTheld$100,001 - $250,000$250,001 - $500,000$0$0
401k Plan ⇒ PRRXX-T. Rowe Price Prime Reserve Fd(NASDAQ)SPheld$50,001 - $100,000$100,001 - $250,000$0$0
Hawaii State FCU (HONOLULU, HAWAII) Type: Checking, SavingsJTheld$15,001 - $50,000$50,001 - $100,000$0$0
IRA PLAN ⇒ ABALX - American Funds American Balanced Fund Class A—held$15,001 - $50,000$50,001 - $100,000$0$0
Spouse IRA ⇒ BPAIX-Boston Partners All Cap Value InstlSPheld$1,001 - $15,000$15,001 - $50,000$0$0
Spouse IRA ⇒ JENIX - Jensen Quality Growth Fund Class ISPheld$1,001 - $15,000$15,001 - $50,000$0$0
401k Plan ⇒ JCBUX - JPMorgan Core Bond Fund Class R6SPheld$100,001 - $250,000$100,001 - $250,000$0$0

Largest movers 2021→2022

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
CTCAX - Columbia Global Technology Growth Fund Class AJTheld$250,001 - $500,000$100,001 - $250,000$0$0
PGGAX-Principal Large Cap Growth I AJTheld$250,001 - $500,000$100,001 - $250,000$0$0
Oshima & Itomura, AAL, ALC Description : Law Firm (Honolulu, HI) ⇒ First Hawaiian Bank (HOSPheld$100,001 - $250,000$250,001 - $500,000$0$0
Hawaii State FCU (HONOLULU, HAWAII) Type: Checking, SavingsJTheld$50,001 - $100,000$100,001 - $250,000$0$0
401k Plan ⇒ PRRXX-T. Rowe Price Prime Reserve Fd(NASDAQ)SPheld$100,001 - $250,000$50,001 - $100,000$0$0
AMCPX-American Funds AMCAP A (NASDAQ)JTheld$100,001 - $250,000$50,001 - $100,000$0$0
401k Plan ⇒ HNACX - Harbor Capital Appreciation Fund Retirement ClassSPheld$50,001 - $100,000$15,001 - $50,000$0$0
IRA PLAN ⇒ ABALX - American Funds American Balanced Fund Class A—held$50,001 - $100,000$15,001 - $50,000$0$0

Largest movers 2024→2025

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
ICAFX - The Investment Company of America Class F-2 ShsJTheld$250,001 - $500,000$500,001 - $1,000,000$0$0
Pershing LLC IRA ⇒ AMBFX - American Balanced Fund Class F-2 ShsSPheld$250,001 - $500,000$100,001 - $250,000$0$0
Hawaii State FCU (HONOLULU, HAWAII) Type: Checking, SavingsJTheld$100,001 - $250,000$250,001 - $500,000$0$0
AMEFX - The Income Fund of America Class F-2 SharesJTheld$100,001 - $250,000$250,001 - $500,000$0$0
Spouse IRA Wells Fargo Clearing Services ⇒ WOBDX - Jpmorgan Core Bond Fund I ClassSPheld$1,001 - $15,000$15,001 - $50,000$0$0
IRA PLAN Pershing LLC ⇒ FBALX - Fidelity Balanced Fund—held$1,001 - $15,000$15,001 - $50,000$0$0
Spouse IRA Wells Fargo Clearing Services ⇒ TMCPX - Touchstone Midcap Fund Class YSPheld$15,001 - $50,000$1,001 - $15,000$0$0
Spouse IRA Wells Fargo Clearing Services ⇒ ECSWX - Embark Commodity Strategy Fund InstitutSPheld$15,001 - $50,000$1,001 - $15,000$0$0

Method (summary)

  1. 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.
  2. 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.
  3. 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).
  4. 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

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).