Katherine M. Clark stock trades
Katherine M. Clark is a member of the U.S. House (Democrat, MA). Filings in this dataset run from 2014-12-19 to 2026-07-14 and list 783 stock transactions: 373 purchases and 410 sales. The median filing came 53 days after the trade; 465 of 786 were filed after the 45-day deadline.
Backtest copying Katherine M. Clark this year
What copying Katherine M. Clark would have returned
$10,000 invested on 2014-12-19, buying and selling the same stocks 3 days after each filing became public, ended at $21,655 on 2026-11-09. The same money in the S&P 500 (SPY) ended at $38,921.
That headline is diluted by cash: on average only 74% of the money was invested, because the portfolio holds a few small positions. On the 2,988 days it did hold stocks, the copied holdings returned +6.3% a year against +12.1% for the S&P 500 over the same days: 5.8 percentage points behind the index.
Value of the whole copy portfolio including cash (teal) and of the same money in SPY (red), sampled across the period. Green dots are copied purchases and red dots copied sales (at most 300 are drawn).
Gain or loss by month
Monthly return of the whole copy portfolio, cash included. Green months gained, red months lost; darker means a bigger move. Grey months had no change.
255 copy orders were not placed (no price history, no cash left or the position limit was reached) and 126 disclosed lines could not be copied at all (no ticker, options, bonds). Hypothetical result computed 2026-11-09 with data through 2026-11-09; see the methodology. Not investment advice.
Activity by year
Transactions by the year the report was filed.
Trades by month
Disclosed stock and fund transactions by the month the report was filed; darker means more.
Most traded stocks
| Stock | Trades | Buys | Sales |
|---|---|---|---|
| HD Home Depot, Inc. | 14 | 6 | 8 |
| AAPL Apple Inc. - Common Stock | 14 | 7 | 7 |
| SBUX Starbucks Corporation - Common Stock | 12 | 6 | 6 |
| INTC Intel Corporation - Common Stock | 12 | 7 | 5 |
| GSK GlaxoSmithKline plc | 12 | 6 | 6 |
| SPG Simon Property Group, Inc. Common Stock | 11 | 6 | 5 |
| TSM Taiwan Semiconductor Manufacturing... | 9 | 2 | 7 |
| MRK Merck & Company, Inc. Common Stock | 9 | 6 | 3 |
| KMB Kimberly-Clark Corporation Common Stock | 9 | 5 | 4 |
| DFS Discover Financial Services | 9 | 5 | 4 |
| CCEP Coca-Cola Europacific Partners plc -... | 9 | 4 | 5 |
| SNE Sony Corporation | 8 | 3 | 5 |
| MSFT Microsoft Corporation - Common Stock | 8 | 4 | 4 |
| KLAC KLA Corporation - Common Stock | 8 | 3 | 5 |
| JPM JP Morgan Chase & Co. Common Stock | 8 | 3 | 5 |
Disclosed transactions
Download stock and fund transactions as CSV · Compare Katherine M. Clark with another member
| Filed | Traded | Type | Asset | Amount | Filing |
|---|---|---|---|---|---|
| 2021-03-02 | 2021-02-08 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 g | Source |
| 2021-03-02 | 2021-02-08 | Buy | CLNE Clean Energy Fuels Corp. | $1,001 - $15,000 g | Source |
| 2021-03-02 | 2021-02-08 | Sale | STT State Street Corporation Common Stock | $1,001 - $15,000 f | Source |
| 2021-03-02 | 2021-02-08 | Sale | HD Home Depot, Inc. | $1,001 - $15,000 e | Source |
| 2021-03-02 | 2021-02-08 | Sale | HD Home Depot, Inc. | $1,001 - $15,000 e | Source |
| 2021-03-02 | 2021-02-08 | Sale | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 e | Source |
| 2021-03-02 | 2021-02-08 | Buy | SPG Simon Property Group, Inc. Common Stock | $1,001 - $15,000 d | Source |
| 2021-03-02 | 2021-02-08 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 c | Source |
| 2021-03-02 | 2021-02-08 | Buy | SPG Simon Property Group, Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2021-03-02 | 2021-02-08 | Sale | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 c | Source |
| 2021-03-02 | 2021-02-08 | Buy | CLNE Clean Energy Fuels Corp. | $1,001 - $15,000 c | Source |
| 2021-03-02 | 2021-02-08 | Sale | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-10 | Sale | ABT Abbott Laboratories Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-10 | Partial sale | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-10 | Sale | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-10 | Buy | ABB Abb ltd | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | VAW Materials ETF Vanguard | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | UNP Union Pacific Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | SAP SAP SE ADS | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | PHG Koninklijke Philips NV Sponsored ADR (PHG) | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | PEP Pepsico, Inc. | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | ORCL Oracle Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | LHX L3Harris Technologies, Inc. Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | LHX L3Harris Technologies, Inc. Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | IRM Iron Mountain Inc | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | IRM Iron Mountain Inc | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | GSK GlaxoSmithKline plc | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | FSLR First Solar, Inc. - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | FSLR First Solar, Inc. - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | COST Costco Wholesale Corporation - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Buy | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | ABT Abbott Laboratories Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-28 | 2020-11-05 | Sale | VAW Materials ETF Vanguard | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | V Visa Inc. | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Buy | STT State Street Corporation Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | SNE Sony Corporation | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Buy | PHG Koninklijke Philips NV Sponsored ADR (PHG) | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Buy | ORCL Oracle Corporation Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Buy | MA Mastercard Incorporated Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | FLIR FLIR Systems, Inc. | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | FIS Fidelity National Information Services,... | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | ELAN Elanco Animal Health Incorporated Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-28 | 2020-11-05 | Sale | UNP Union Pacific Corporation Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-05 | Buy | ORAN Orange | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-05 | Sale | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-05 | Buy | INTC Intel Corporation - Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-28 | 2020-11-05 | Buy | XYL Xylem Inc. Common Stock New | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | XYL Xylem Inc. Common Stock New | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | STT State Street Corporation Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Sale | SKX Skechers u.S.A., Inc. | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | SBUX Starbucks Corporation - Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | ORAN Orange | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Sale | JPM JP Morgan Chase & Co. Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Sale | FLIR FLIR Systems, Inc. | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Sale | FIS Fidelity National Information Services,... | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | EW Edwards Lifesciences Corporation Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Buy | EW Edwards Lifesciences Corporation Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-28 | 2020-11-05 | Sale | V Visa Inc. | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | UBS UBS Group AG Registered Ordinary Shares | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | UBS UBS Group AG Registered Ordinary Shares | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | SPGI S&P Global Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | SPGI S&P Global Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | SNE Sony Corporation | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | SKX Skechers u.S.A., Inc. | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | SBUX Starbucks Corporation - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | SAP SAP SE ADS | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | PEP Pepsico, Inc. | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | NVO Novo Nordisk A/S Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | NVO Novo Nordisk A/S Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | NGG National Grid plc | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | NGG National Grid plc | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | MDT Medtronic plc. Ordinary Shares | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | MDT Medtronic plc. Ordinary Shares | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | MA Mastercard Incorporated Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | JPM JP Morgan Chase & Co. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | INTC Intel Corporation - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | HOLX Hologic, Inc. | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | HOLX Hologic, Inc. | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | GSK GlaxoSmithKline plc | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | ELAN Elanco Animal Health Incorporated Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | COST Costco Wholesale Corporation - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | BLK BlackRock, Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | BLK BlackRock, Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Buy | ABB Abb ltd | $1,001 - $15,000 c | Source |
| 2020-12-28 | 2020-11-05 | Sale | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-09 | 2020-11-02 | Sale | Encompass Health Corp Note | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Buy | UNP Union Pacific Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | SKX Skechers u.S.A., Inc. | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | ORCL Oracle Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Buy | NGG National Grid plc | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | MOS Mosaic Company | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | KMB Kimberly-Clark Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | KMB Kimberly-Clark Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | INTC Intel Corporation - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Buy | HOLX Hologic, Inc. | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | HD Home Depot, Inc. | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | GSK GlaxoSmithKline plc | $1,001 - $15,000 g | Source |
Other members from MA
- William R. Keating Democrat, 201 trades
- Seth Moulton Democrat, 20 trades
- Stephen F. Lynch Democrat, 13 trades
- Lori Trahan Democrat, 12 trades
- Jake Auchincloss Democrat, 10 trades
Members who trade the same stocks
- Gilbert Cisneros Democrat, 89 stocks in common
- Alan Armstrong Republican, 86 stocks in common
- K. Michael Conaway Republican, 79 stocks in common
- Daniel Goldman Democrat, 69 stocks in common
- Josh Gottheimer Democrat, 64 stocks in common
- Jefferson Shreve Republican, 64 stocks in common
- Rob Bresnahan Republican, 64 stocks in common
- Sheldon Whitehouse Democrat, 63 stocks in common
Common questions
- Did Katherine M. Clark beat the market?
- Copying Katherine M. Clark's disclosed stock trades 3 days after each filing returned +6.3% a year on the days the money was invested, against +12.1% for the S&P 500 over the same days: 5.8 percentage points behind the index. This is a hypothetical backtest from 2014-12-19 to 2026-11-09, not investment advice.
- How many stock trades has Katherine M. Clark disclosed?
- Katherine M. Clark disclosed 783 stock transactions between 2014-12-19 and 2026-07-14: 373 purchases and 410 sales.
- Which stocks does Katherine M. Clark trade most?
- The most traded stocks in Katherine M. Clark's filings are HD (14), AAPL (14) and SBUX (12), by number of transactions.
- How quickly does Katherine M. Clark report trades?
- The median filing came 53 days after the trade. 465 of 786 filings arrived after the 45-day deadline.