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 |
|---|---|---|---|---|---|
| 2020-12-03 | 2020-10-22 | Buy | COST Costco Wholesale Corporation - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Buy | COST Costco Wholesale Corporation - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Buy | ABT Abbott Laboratories Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 g | Source |
| 2020-12-03 | 2020-10-22 | Sale | UNH UnitedHealth Group Incorporated Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Sale | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Sale | HSBC HSBC Holdings plc | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Sale | GSK GlaxoSmithKline plc | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Buy | ELAN Elanco Animal Health Incorporated Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Sale | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Sale | BMY Bristol-Myers Squibb Company Common Stock | $1,001 - $15,000 f | Source |
| 2020-12-03 | 2020-10-22 | Buy | NGG National Grid plc | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Sale | MOS Mosaic Company | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Sale | JPM JP Morgan Chase & Co. Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Sale | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Buy | FLIR FLIR Systems, Inc. | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Sale | BMY Bristol-Myers Squibb Company Common Stock | $1,001 - $15,000 e | Source |
| 2020-12-03 | 2020-10-22 | Sale | UNH UnitedHealth Group Incorporated Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-03 | 2020-10-22 | Buy | UBS UBS Group AG Registered Ordinary Shares | $1,001 - $15,000 d | Source |
| 2020-12-03 | 2020-10-22 | Buy | SNE Sony Corporation | $1,001 - $15,000 d | Source |
| 2020-12-03 | 2020-10-22 | Buy | HOLX Hologic, Inc. | $1,001 - $15,000 d | Source |
| 2020-12-03 | 2020-10-22 | Buy | ELAN Elanco Animal Health Incorporated Common Stock | $1,001 - $15,000 d | Source |
| 2020-12-03 | 2020-10-22 | Buy | UNP Union Pacific Corporation Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | UBS UBS Group AG Registered Ordinary Shares | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | SNE Sony Corporation | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | LGND Ligand Pharmaceuticals Incorporated -... | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | LGND Ligand Pharmaceuticals Incorporated -... | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | INTC Intel Corporation - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | HSBC HSBC Holdings plc | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | HD Home Depot, Inc. | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | FLIR FLIR Systems, Inc. | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | FIS Fidelity National Information Services,... | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | FIS Fidelity National Information Services,... | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Buy | ABT Abbott Laboratories Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-22 | Sale | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 c | Source |
| 2020-12-03 | 2020-10-01 | Sale | Microsoft Corp Note | $1,001 - $15,000 d | Source |
| 2020-11-03 | 2020-09-01 | Sale | NEW ORlEANS lA gO lTD TAX REF bDS SER [gS] | $1,001 - $15,000 g | Source |
| 2020-09-30 | 2020-08-31 | Sale | Camden County NJ Impt Auth Rev lease [gS] | $1,001 - $15,000 g | Source |
| 2020-08-12 | 2019-07-01 | Sale | Avondale AZ Projs of 1998 2007 build Amer [gS] | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Buy | MOS Mosaic Company | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Buy | LHX L3Harris Technologies, Inc. Common Stock | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Sale | EMR Emerson Electric Company Common Stock | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Sale | AMCX AMC Networks Inc. - Class A | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Sale | ABB Abb ltd | $1,001 - $15,000 g | Source |
| 2020-05-29 | 2020-04-03 | Sale | AMCX AMC Networks Inc. - Class A | $1,001 - $15,000 f | Source |
| 2020-05-29 | 2020-04-03 | Buy | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 f | Source |
| 2020-05-29 | 2020-04-03 | Buy | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 e | Source |
| 2020-05-29 | 2020-04-03 | Buy | GOOGL Alphabet Inc. - Class A Common Stock | $1,001 - $15,000 e | Source |
| 2020-05-29 | 2020-04-03 | Sale | EMR Emerson Electric Company Common Stock | $1,001 - $15,000 d | Source |
| 2020-05-29 | 2020-04-03 | Buy | BMY Bristol-Myers Squibb Company Common Stock | $1,001 - $15,000 d | Source |
| 2020-05-29 | 2020-04-03 | Buy | AAPL Apple Inc. - Common Stock | $1,001 - $15,000 d | Source |
| 2020-05-29 | 2020-04-03 | Buy | LHX L3Harris Technologies, Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2020-05-29 | 2020-04-03 | Buy | LGND Ligand Pharmaceuticals Incorporated -... | $1,001 - $15,000 c | Source |
| 2020-05-29 | 2020-04-03 | Buy | LGND Ligand Pharmaceuticals Incorporated -... | $1,001 - $15,000 c | Source |
| 2020-05-29 | 2020-04-03 | Buy | BMY Bristol-Myers Squibb Company Common Stock | $1,001 - $15,000 c | Source |
| 2020-05-29 | 2020-04-03 | Sale | ABB Abb ltd | $1,001 - $15,000 c | Source |
| 2020-04-20 | 2020-03-20 | Sale | MPC Marathon Petroleum Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2020-04-20 | 2020-03-20 | Sale | MPC Marathon Petroleum Corporation Common Stock | $1,001 - $15,000 f | Source |
| 2020-04-20 | 2020-03-02 | Buy | SKX Skechers u.S.A., Inc. | $1,001 - $15,000 g | Source |
| 2020-04-20 | 2020-03-02 | Buy | GSK GlaxoSmithKline plc | $1,001 - $15,000 g | Source |
| 2020-04-20 | 2020-03-02 | Sale | SKX Skechers u.S.A., Inc. | $1,001 - $15,000 f | Source |
| 2020-04-20 | 2020-03-02 | Sale | HAS Hasbro Inc. | $1,001 - $15,000 f | Source |
| 2020-04-20 | 2020-03-02 | Buy | GSK GlaxoSmithKline plc | $1,001 - $15,000 e | Source |
| 2020-04-20 | 2020-03-02 | Sale | RBA Ritchie Bros. Auctioneers Incorporated (NYSE) | $1,001 - $15,000 d | Source |
| 2020-04-20 | 2020-03-02 | Buy | MPC Marathon Petroleum Corporation Common Stock | $1,001 - $15,000 d | Source |
| 2020-04-20 | 2020-03-02 | Sale | RBA Ritchie Bros. Auctioneers Incorporated (NYSE) | $1,001 - $15,000 c | Source |
| 2020-02-04 | 2020-01-30 | Sale | UPS United Parcel Service, Inc. Common Stock | $15,001 - g $50,000 | Source |
| 2019-12-11 | 2019-11-05 | Sale | PXD Pioneer Natural Resources Company | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Buy | KMB Kimberly-Clark Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Buy | KMB Kimberly-Clark Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Sale | IVZ Invesco Ltd Common Stock | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Sale | CNC Centene Corporation Common Stock | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Buy | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 g | Source |
| 2019-12-11 | 2019-11-05 | Sale | TSM Taiwan Semiconductor Manufacturing Company Ltd. | $1,001 - $15,000 f | Source |
| 2019-12-11 | 2019-11-05 | Sale | PXD Pioneer Natural Resources Company | $1,001 - $15,000 f | Source |
| 2019-12-11 | 2019-11-05 | Buy | CCEP Coca-Cola Europacific Partners plc -... | $1,001 - $15,000 f | Source |
| 2019-12-11 | 2019-11-05 | Buy | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 e | Source |
| 2019-12-11 | 2019-11-05 | Sale | IVZ Invesco Ltd Common Stock | $1,001 - $15,000 c | Source |
| 2019-12-11 | 2019-11-05 | Buy | INVH Invitation Homes Inc. Common Stock | $1,001 - $15,000 c | Source |
| 2019-12-11 | 2019-11-05 | Buy | HAS Hasbro Inc. | $1,001 - $15,000 c | Source |
| 2019-12-11 | 2019-11-05 | Sale | CNC Centene Corporation Common Stock | $1,001 - $15,000 c | Source |
| 2019-12-11 | 2019-11-05 | Buy | AMCX AMC Networks Inc. - Class A | $1,001 - $15,000 c | Source |
| 2019-12-11 | 2019-11-05 | Buy | AMCX AMC Networks Inc. - Class A | $1,001 - $15,000 c | Source |
| 2019-10-01 | 2019-09-20 | Sale | Flextronics Intl ltd | $1,001 - $15,000 g | Source |
| 2019-09-10 | 2019-08-15 | Sale | Rent A Center Inc | $1,001 - $15,000 f | Source |
| 2019-09-10 | 2019-07-09 | Sale | HON Honeywell International Inc. | $1,001 - $15,000 g | Source |
| 2019-09-10 | 2019-07-09 | Buy | MOS Mosaic Company | $1,001 - $15,000 c | Source |
| 2019-09-10 | 2019-07-09 | Buy | MOS Mosaic Company | $1,001 - $15,000 c | Source |
| 2019-09-10 | 2019-07-09 | Sale | HON Honeywell International Inc. | $1,001 - $15,000 c | Source |
| 2019-07-31 | 2019-01-25 | Sale | FSK FS KKR Capital Corp. Common Stock | $15,001 - e $50,000 | Source |
| 2019-07-22 | 2019-06-04 | Buy | MPC Marathon Petroleum Corporation Common Stock | $1,001 - $15,000 f | Source |
| 2019-07-22 | 2019-06-04 | Buy | MPC Marathon Petroleum Corporation Common Stock | $1,001 - $15,000 e | Source |
| 2019-07-22 | 2019-06-04 | Sale | HAS Hasbro Inc. | $1,001 - $15,000 d | Source |
| 2019-07-22 | 2019-06-04 | Sale | APC Anadarko Petroleum Corporation | $1,001 - $15,000 c | Source |
| 2019-07-22 | 2019-06-04 | Sale | APC Anadarko Petroleum Corporation | $1,001 - $15,000 c | 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.