Slack Technologies
Insider trading & Transactions

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Transaction Date Insider Security Shares Price per share Total value Source
Option
COOPER EDITH W director
 Class B Common Stock 34,179 N/A N/A
Option
COOPER EDITH W director
 Restricted Stock Units 34,179 N/A N/A
Sale
YEHOSHUA TAMAR officer: Chief Product Officer
 Class A Common Stock 42,974 N/A N/A
Sale
HENDERSON CAL officer: Chief Technology Officer
 Class A Common Stock 1,499 N/A N/A
Sale
BUTTERFIELD STEWART director, officer: Chief Execut..
 Class A Common Stock 109,290 N/A N/A
Option
BUTTERFIELD STEWART director, officer: Chief Execut..
 Restricted Stock Units 228,801 N/A N/A
Option
BUTTERFIELD STEWART director, officer: Chief Execut..
 Class B Common Stock 228,801 N/A N/A
Sale
ZELL BRANDON officer: Chief Accounting Officer
 Class A Common Stock 3,338 N/A N/A
Option
ZELL BRANDON officer: Chief Accounting Officer
 Restricted Stock Units 2,812 N/A N/A
Option
ZELL BRANDON officer: Chief Accounting Officer
 Class B Common Stock 2,812 N/A N/A
Sale
YEHOSHUA TAMAR officer: Chief Product Officer
 Class A Common Stock 49,082 N/A N/A
Option
YEHOSHUA TAMAR officer: Chief Product Officer
 Restricted Stock Units 89,246 N/A N/A
Option
YEHOSHUA TAMAR officer: Chief Product Officer
 Class B Common Stock 89,246 N/A N/A
Sale
SCHELLHASE DAVID officer: General Counsel and Se..
 Class A Common Stock 1,499 N/A N/A
Sale
SHIM ALLEN officer: Chief Financial Officer
 Class A Common Stock 1,925 N/A N/A
Option
COOPER EDITH W director
 Restricted Stock Units 17,089 N/A N/A
Option
COOPER EDITH W director
 Class B Common Stock 17,089 N/A N/A
Sale
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Class A Common Stock 2,726 N/A N/A
Sale
YEHOSHUA TAMAR officer: Chief Product Officer
 Class A Common Stock 49,082 $44.29 $2,173,842
Sale
ZELL BRANDON officer: Chief Accounting Officer
 Class A Common Stock 3,338 $44.29 $147,840
Sale
SCHELLHASE DAVID officer: General Counsel and Se..
 Class A Common Stock 3,333 N/A N/A
Option
SCHELLHASE DAVID officer: General Counsel and Se..
 Restricted Stock Units 6,250 N/A N/A
Option
SCHELLHASE DAVID officer: General Counsel and Se..
 Class B Common Stock 6,250 N/A N/A
Sale
YEHOSHUA TAMAR officer: Chief Product Officer
 Class A Common Stock 85,744 $43 $3,686,992
Sale
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Class A Common Stock 12,398 $42.07 $521,584
Option
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Restricted Stock Units 23,250 N/A N/A
Option
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Class B Common Stock 23,250 N/A N/A
Sale
SHIM ALLEN officer: Chief Financial Officer
 Class A Common Stock 28,321 $42.07 $1,191,464
Option
SHIM ALLEN officer: Chief Financial Officer
 Restricted Stock Units 56,406 N/A N/A
Option
SHIM ALLEN officer: Chief Financial Officer
 Class B Common Stock 56,406 N/A N/A
Sale
SCHELLHASE DAVID officer: General Counsel and Se..
 Class A Common Stock 3,333 $42.07 $140,219
Option
SCHELLHASE DAVID officer: General Counsel and Se..
 Restricted Stock Units 6,250 N/A N/A
Option
SCHELLHASE DAVID officer: General Counsel and Se..
 Class B Common Stock 6,250 N/A N/A
Sale
ZELL BRANDON officer: Chief Accounting Officer
 Class A Common Stock 3,999 $42.07 $168,238
Option
ZELL BRANDON officer: Chief Accounting Officer
 Restricted Stock Units 7,500 N/A N/A
Option
ZELL BRANDON officer: Chief Accounting Officer
 Class B Common Stock 7,500 N/A N/A
Sale
HENDERSON CAL officer: Chief Technology Officer
 Class A Common Stock 5,637 $42.07 $237,149
Option
HENDERSON CAL officer: Chief Technology Officer
 Restricted Stock Units 11,250 N/A N/A
Option
HENDERSON CAL officer: Chief Technology Officer
 Class B Common Stock 11,250 N/A N/A
Option
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Class B Common Stock 23,250 N/A N/A
Option
FRATI ROBERT officer: Sr VP Sales, Customer ..
 Restricted Stock Units 23,250 N/A N/A
Sale
BUTTERFIELD STEWART director, officer: Chief Execut..
 Class A Common Stock 250,000 $42.06 $10,515,000
Sale
SHIM ALLEN officer: Chief Financial Officer
 Class A Common Stock 120,000 $42.05 $5,046,000
Sale
SHIM ALLEN officer: Chief Financial Officer
 Class A Common Stock 76,405 N/A N/A
Sale
ZELL BRANDON officer: Chief Accounting Officer
 Class A Common Stock 4,173 $20.6 $85,964
Option
ZELL BRANDON officer: Chief Accounting Officer
 Restricted Stock Units 4,376 N/A N/A
Option
ZELL BRANDON officer: Chief Accounting Officer
 Class B Common Stock 4,376 N/A N/A
Option
COOPER EDITH W director
 Restricted Stock Units 17,089 N/A N/A
Option
COOPER EDITH W director
 Class B Common Stock 17,089 N/A N/A
Sale
SHIM ALLEN officer: Chief Financial Officer
 Class A Common Stock 1,925 $41.2 $79,310

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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.

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