Niki Tsongas Stock Trades

Democrat · House · MA-3 Former member Trades since 2014 Data as of Nov 3, 2026

Trading Record

Niki Tsongas (D-MA-3), a former Democratic member of the House, has disclosed 4 trades since 2014: 0 purchases worth about $0.00 and 4 sales worth about $215.00K, in 1 stock. Most traded: TMO. As a portfolio, their stock holdings and trades returned +28.3% from May 2015, against +14.6% for the S&P 500. Trades took a median 18 days to be disclosed; 1 came late.

Trades
4
0 buys · 4 sells
Bought (est.)
$0.00
Midpoints of the ranges
Sold (est.)
$215.00K
Net -$215.00K
Stocks Traded
1
4 reports
Avg Buy vs SPY
–
Too few priced buys
Median Delay
18 days
From trade to report
Late Filings
25.0%
1 trade past 45 days
Last Filed
Aug 15, 2016
Traded Aug 1, 2016

Portfolio vs S&P 500

Niki Tsongas S&P 500 (SPY)

Niki Tsongas’s disclosed stock holdings and trades run as one portfolio, against the S&P 500: what $10,000 would have grown to. Since May 2015: +28.3%, against +14.6% for SPY; the largest fall on the way was -19.7%.

PortfolioSinceReturnS&P 500Difference CAGR Max Drawdown Sharpe Beta
Niki Tsongas May 2015 +28.3% +14.6% +13.7% +7.1% -19.7% 0.49 0.32

How it is built. On each annual financial disclosure’s filing date the book is reset to the stocks the report lists, at the midpoints of their value ranges. Between reports, each disclosed purchase buys the midpoint of its range at the trade-date close and each sale sells its midpoint. Options count as their underlying stock at their reported value. Returns are time-weighted on split-adjusted prices without dividends, for SPY as well. ETFs, funds, bonds and private holdings are not modelled, and a former member’s record ends with their last term.

Every stock traded, what is still held first

1 Stock

Still held (est.)–
As ofNov 3, 2026
StockSector Held (est.) Weight Return Held TradesBuysSellsBought (est.)Sold (est.) Buys vs SPY Last Traded
TMOThermo Fisher Scientific Inc. Healthcare Closed – – 1 0 1 $0.00 $32.50K – Mar 13, 2014

Estimates. Held positions are rebuilt from the disclosed trades since 2012 (purchases at the midpoint of their range, less sales) and valued at the last close. Shares bought before 2012, received outside a trade or held in options are not included; for a former member nothing is shown as held.

Monthly Activity

Purchases Sales

Trades by the month they were made: purchases above the line, sales below.

How the Trades Break Down

Share of 4 trades, all years

Asset Class

Other75%
Stock25%

Transaction Type

Sale100%

Owner

Self100%

Sector

Unknown75%
Healthcare25%
Newest filings first

All Trades by Niki Tsongas

OwnerTypeFiling
MASSACHUSETTS ST WTR POLLUTN A WTR POLL BDSOtherSelfSell$50K–$100KAug 1, 2016Aug 15, 201614d––PDF
AUBURN MASS GO MUN PRUP LN BDSOtherSelfSell$50K–$100KMar 15, 2015Mar 25, 201510d––PDF
MASSACUSETTS ST GO BDSOtherSelfSell$15K–$50KMar 3, 2014May 2, 201460d late––PDF
TMOThermo Fisher Scientific Inc.SelfSell$15K–$50KMar 13, 2014Apr 3, 201421d+454.0%+147.8%PDF
Showing 1–4 of 4 trades Filings: Clerk of the House

Tip. Hover a row for the filing’s full asset text and comments; the PDF link opens the report itself.

About Niki Tsongas’s Stock Trades

Does Niki Tsongas trade stocks?

Niki Tsongas (D-MA-3), a former Democratic member of the House, has disclosed 4 trades since 2014: 0 purchases worth about $0.00 and 4 sales worth about $215.00K, in 1 stock. Most traded: TMO. As a portfolio, their stock holdings and trades returned +28.3% from May 2015, against +14.6% for the S&P 500. Trades took a median 18 days to be disclosed; 1 came late.

How have Niki Tsongas's stock trades performed?

As a portfolio, their stock holdings and trades returned +28.3% from May 2015 to November 2026, against +14.6% for the S&P 500, with a largest fall of -19.7%. On the filing date of each annual financial disclosure, the book is reset to the stocks it lists, at the midpoint of each value range. Between reports, each purchase buys the midpoint of its disclosed range at the trade-date close and each sale sells its midpoint. Options count as their underlying stock at their reported value. ETFs, funds, bonds and private holdings are left out. The return is time-weighted, on prices that are adjusted for splits but not dividends, and SPY is measured the same way. A member's record ends with their last term.

How quickly does Niki Tsongas report trades?

Their trades took a median 18 days to be disclosed. 1 of 4 trades were filed after the 45 days the STOCK Act allows.

Other Members from MA

by trading volume

Members of Congress disclose trades as dollar ranges, up to 45 days after the trade and sometimes later. Volumes use the midpoints of those ranges and are estimates; portfolio figures are a model built from the disclosed trades, not the members’ actual accounts. Not investment advice.