Official portrait of Rep. Stephen F. Lynch (D-MA)
Official portrait: unitedstates/images (public domain; source GPO Member Guide)

Rep. Stephen F. Lynch (D-MA)

House · Democrat (most recent term) · MA-8 · in Congress 2001–present · Bioguide ID L000562

Party history: D 2001–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 20012013$13,018$680,508$1,347,998
(b) Latest net worth estimate2025−$198,987$541,006$1,280,998
(c) Estimated gain / loss, nominal dollars, 2013 → 2025 (12 years spanned)2013–2025−$1,546,985−$139,502+$1,267,980

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$1,230,509$550,001$680,508$13,018 … $1,347,998computed
2014$1,255,009$582,502$672,508−$22,982 … $1,367,997computed
2015$1,654,509$582,502$1,072,008$241,018 … $1,902,997computed
2016$1,654,509$582,502$1,072,008$241,018 … $1,902,997computed
2017$1,718,509$582,502$1,136,008$271,018 … $2,000,997computed
2018$1,694,009$582,502$1,111,508$257,018 … $1,965,997computed
2019$1,767,509$582,502$1,185,008$299,018 … $2,070,997computed
2020$1,792,009$582,502$1,209,508$313,018 … $2,105,997computed
2021$1,160,008$562,501$597,508−$80,983 … $1,275,998computed
2022$1,060,008$762,501$297,508−$380,983 … $975,998computed
2023$1,152,008$762,501$389,507−$331,984 … $1,110,998computed
2024$1,071,006$762,501$308,505−$363,988 … $980,998computed
2025$1,303,506$762,501$541,006−$198,987 … $1,280,998computed
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.)+7.5%
Simple average of years+7.8%
Years estimated11
Best / worst single year2015 +35%
2016 +3%

Sensitivity band for the average (all ranges at floor vs. all at ceiling, same holdings both years): +6.5% to +7.9%. 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%35%20142015201620172018201920202022202320242025

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$1,125,502$1,125,502$42,501$0$0 +3.8%+2.7% … +4.3%-65% … +73%91%counted
2014→2015$1,247,008$1,646,508$42,602$0$0 +35.5%+34.9% … +36.6%-53% … +124%99%counted
2015→2016$1,606,006$1,606,006$42,602$0$0 +2.7%+1.9% … +3.0%-70% … +75%97%counted
2016→2017$1,646,508$1,710,508$42,702$0$0 +6.5%+4.8% … +7.3%-71% … +84%100%counted
2017→2018$1,589,006$1,589,006$42,702$0$0 +2.7%+2.0% … +3.0%-70% … +75%92%counted
2018→2019$1,686,008$1,759,508$42,702$0$0 +6.9%+5.9% … +7.4%-71% … +85%100%counted
2019→2020$1,759,508$1,784,008$42,702$0$0 +3.8%+3.1% … +4.1%-73% … +81%100%counted
2020→2021$863,505$863,505$32,702$0$0 +3.8%+2.8% … +4.2%-74% … +82%48%excluded; not eligible: traced coverage 48% < 60%
2021→2022$838,504$879,006$32,601$40,501$0 +3.9%+2.9% … +4.3%-80% … +87%72%counted
2022→2023$1,052,008$1,152,008$32,702$0$0 +12.6%+10.3% … +13.6%-73% … +99%99%counted
2023→2024$920,506$863,505$32,702$8,000$65,001 +3.6%+2.7% … +3.9%-77% … +84%80%counted; many new/exited positions
2024→2025$815,004$815,004$32,702$0$0 +4.0%+2.9% … +4.5%-71% … +79%76%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
201310001559House annual5/13/201418010001559.pdf
bd7aa68de5d65f0ae4d3c799a98f6793accc1eba71f2977486ee7175708834ef
201410005736House annual5/15/201518010005736.pdf
2ca91bc41b2b30b9294dd32dc646aa76445c63c0abab5aabeaa7a280efae172c
201510010230House annual5/16/201618010010230.pdf
d83ef28ad5cea826a80054bf9b062040b21c6d0800a618f2ff4ffd7833468a4f
201610015023House annual5/5/201718010015023.pdf
1fb6b31cede9dced00e1c7f7d0262fe7b34d4089d36c4522d6f6eed5e398978f
201710023743House amendment5/24/201818010023743.pdf
c5f81696d642907b02ac5d914b5cc913c8390f95890ba08182d6a6fe71f5c096
201810026211House annual5/14/201918010026211.pdf
f9b98f9a997bfcadbb9f4d75546230d398cd469351b055ec6d505d7ab1b08a45
201910035666House annual8/6/202018010035666.pdf
d51e65e5c2e2c7c6134a2ab1463a9090cb4463a78878a6613abb355b8ce09e62
202010041076House annual7/30/202118010041076.pdf
b7b7d8748d1f86d5bd9e489dd053056079fa70f3a42c499671ef555ac553aaec
202110047198House annual5/13/202217010047198.pdf
551ddad3574683058cb4333d1c6253bdca1c331eca5bc5679d444abf0490e727
202210051892House annual5/11/202317010051892.pdf
8063096af0a8e737b855703afea840d1792e47a0eb58f9d6d23659dcc38b3a47
202310057612House annual5/10/202416010057612.pdf
e7db20afdbdb23871074345c26bf307d86382a6b2e97b4304c0a4dac0e19500f
202410066502House annual5/14/202512010066502.pdf
e35c6a4ef523351de7d98c0ce067085eb7f006ab65e7341b513feb2561c0413b
202510076086House annual5/15/202613010076086.pdf
671d106c81e607fbc7cc8bb4d894046a77dc37bef188cb2727d5e50f30d475d9

Largest movers 2022→2023

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
South Boston Community Health Center 403(b) ⇒ Fidelity Contra Fund [MF]—held$50,001 - $100,000$100,001 - $250,000$0$0
South Boston Community Health Center 403(b) ⇒ American Funds Euro-Pacific [MF]—held$15,001 - $50,000$15,001 - $50,000$0$0
IRA ⇒—held$15,001 - $50,000$15,001 - $50,000$0$0
IRA ⇒ Pioneer Mid-Cap Growth Fund [IH]—held$1,001 - $15,000$1,001 - $15,000$0$0
IRA ⇒ Morgan Stanley Money Market Fund [IH]—held$1,001 - $15,000$1,001 - $15,000$0$0
Rockland Trust [BA]JTheld$1 - $1,000$1 - $1,000$0$0
Bank of America [BA]JTheld$15,001 - $50,000$15,001 - $50,000$0$0
IRA ⇒ Dell Technologies Inc. Class V (DVMT) [ST]—held$1,001 - $15,000$1,001 - $15,000$0$0

Largest movers 2023→2024

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
IRA ⇒—held$15,001 - $50,000$1,001 - $15,000$0$0
IRA ⇒ Pioneer Mid-Cap Growth Fund [IH]—held$1,001 - $15,000$15,001 - $50,000$0$0
Rockland Trust [BA]JTheld$1 - $1,000$1 - $1,000$0$0
Bank of America [BA]JTheld$15,001 - $50,000$15,001 - $50,000$0$0
IRA ⇒ Dell Technologies Inc. Class V (DVMT) [ST]—held$1,001 - $15,000$1,001 - $15,000$0$0
IRA ⇒ NVIDIA Corporation - Common Stock (NVDA) [ST]—new—$1,001 - $15,000$8,000$0
South Boston Community Health Center 403(b) ⇒ American Funds Income Fund of America [MF]—exited$15,001 - $50,000—$0$32,500
3 Jason Terrace [RP]JTheld$500,001 - $1,000,000$500,001 - $1,000,000$0$0

Largest movers 2024→2025

Position (as written in filing)OwnerKindOpening range(s)Closing range(s)Buys (mid)Sales (mid)
Rockland Trust [BA]JTheld$1 - $1,000$1 - $1,000$0$0
IRA ⇒ Dell Technologies Inc. Class V (DVMT) [ST]—held$1,001 - $15,000$1,001 - $15,000$0$0
Bank of America [BA]JTheld$15,001 - $50,000$15,001 - $50,000$0$0
IRA ⇒ NVIDIA Corporation - Common Stock (NVDA) [ST]—held$1,001 - $15,000$1,001 - $15,000$0$0
3 Jason Terrace [RP]JTheld$500,001 - $1,000,000$500,001 - $1,000,000$0$0
IRA ⇒ Morgan Stanley Institutional Fund Growth Portfolio [IH]—held$1,001 - $15,000$1,001 - $15,000$0$0
IRA ⇒ Cisco Systems, Inc. (CSCO) [IH]—held$1,001 - $15,000$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).