Costco Wholesale
Insider trading & Transactions

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Transaction Date Insider Security Shares Price per share Total value Source
Option
GALANTI RICHARD A director, officer: Executive VP..
Stock Option 15,000 $38.79 $581,850
Option
GALANTI RICHARD A director, officer: Executive VP..
Common Stock 15,000 $38.79 $581,850
Sale
MURPHY JAMES P. officer: Executive VP
Common Stock 11,898 N/A N/A
Sale
SINEGAL JAMES D director
Common Stock 8,000 N/A N/A
Option
SCHUTT DOUGLAS W officer: Former Executive VP
Common Stock 10,000 $33.75 $337,500
Option
SCHUTT DOUGLAS W officer: Former Executive VP
Stock Option 10,000 $33.75 $337,500
Sale
SCHUTT DOUGLAS W officer: Former Executive VP
Common Stock 13,000 $16.88 $219,375
Sale
PORTERA JOSEPH P officer: Executive VP
Common Stock 15,000 $64.46 $966,855
Sale
PORTERA JOSEPH P officer: Executive VP
Common Stock 3,000 $64.34 $193,017
Sale
MEISENBACH JOHN W director
Common Stock 25,500 $10.14 $258,494
Option
MEISENBACH JOHN W director
Common Stock 12,000 $30.41 $364,920
Option
MEISENBACH JOHN W director
Stock Option 12,000 $30.41 $364,920
Sale
CARSON BENJAMIN SR director
Common Stock 12,000 $39.65 $475,800
Option
CARSON BENJAMIN SR director
Common Stock 12,000 $39.65 $475,800
Option
CARSON BENJAMIN SR director
Stock Option 12,000 $39.65 $475,800
Sale
GALANTI RICHARD A director, officer: Executive VP..
Common Stock 20,318 $17.37 $352,924
Option
PETTERSON DAVID S other: Former Principal Acct Of..
Stock Option 7,500 $43.79 $328,425
Option
GATES WILLIAM H II other: Former Director
Common Stock 19,500 $33.88 $660,660
Option
GATES WILLIAM H II other: Former Director
Stock Option 19,500 $33.88 $660,660
Option
GALANTI RICHARD A director, officer: Executive VP..
Stock Option 10,000 $34.74 $347,400
Sale
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 9,338 $54.29 $506,923
Option
GALANTI RICHARD A director, officer: Executive VP..
Common Stock 10,000 $34.74 $347,400
Option
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 7,500 $43.79 $328,425
Sale
GATES WILLIAM H II other: Former Director
Common Stock 10,160 N/A N/A
Sale
DICERCHIO RICHARD D director
Common Stock 19,216 N/A N/A
Sale
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 1,838 N/A N/A
Sale
MOULTON PAUL G officer: Executive VP
Common Stock 7,308 N/A N/A
Sale
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 1,815 N/A N/A
Sale
DICERCHIO RICHARD D director
Common Stock 10,000 N/A N/A
Sale
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 1,875 $62.77 $117,698
Option
SINEGAL JAMES D director
Common Stock 450,000 $36.19 $16,284,600
Option
SINEGAL JAMES D director
Stock Option 150,000 $36.19 $5,428,200
Sale
SINEGAL JAMES D director
Common Stock 325,000 N/A N/A
Option
PETTERSON DAVID S other: Former Principal Acct Of..
Stock Option 7,500 $43.79 $328,425
Sale
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 7,500 $43.79 $328,425
Option
PETTERSON DAVID S other: Former Principal Acct Of..
Common Stock 7,500 $43.79 $328,425
Sale
ZOOK DENNIS R officer: Former Executive VP
Common Stock 7,000 N/A N/A
Sale
SINEGAL JAMES D director
Common Stock 8,000 N/A N/A
Sale
DICERCHIO RICHARD D director
Common Stock 10,000 N/A N/A
Sale
LIBENSON RICHARD M director, other: Director Emeri..
Common Stock 48,000 N/A N/A
Option
MCKAY JOHN D officer: Executive Vice President
Common Stock 37,500 $39.02 $1,463,250
Option
MCKAY JOHN D officer: Executive Vice President
Stock Option 22,500 $39.25 $883,125
Option
WALKER THOMAS KIRK officer: Executive VP
Common Stock 43,000 $38.77 $1,667,110
Option
WALKER THOMAS KIRK officer: Executive VP
Stock Option 43,000 $38.77 $1,667,110
Sale
MCKAY JOHN D officer: Executive Vice President
Common Stock 37,500 N/A N/A
Sale
WALKER THOMAS KIRK officer: Executive VP
Common Stock 43,000 N/A N/A
Option
LIBENSON RICHARD M director, other: Director Emeri..
Stock Option 12,000 $36.19 $434,256
Option
LIBENSON RICHARD M director, other: Director Emeri..
Common Stock 48,000 $36.19 $1,737,024
Sale
SINEGAL JAMES D director
Common Stock 8,000 N/A N/A
Option
GALANTI RICHARD A director, officer: Executive VP..
Stock Option 15,000 $34.74 $521,100

Insider trading

Monitoring trades made by the management members or major shareholders of companies may help create a sharper picture of what is happening inside the companies. Base your decisions on buys or sells of the people involved and do the right thing at the right time.

Who is insider?

Every director or senior officer, as well as any other entity or individual owning more than 10% of the company’s shares on the stock market, is called an insider. Such people or entities are allowed to buy/sell the company's shares under strictly controlled conditions. Key premise here is that none of them can make trades based on non-public information about the company.