Why insider trading matters?

Numerous studies have examined whether there is evidence that U.S. insiders systematically trade on private information despite the legal deterrence. The consensus appears to be that insider purchases (but not sales) tend to be followed by positive abnormal stock price performance, particularly for small growth stocks.

- Prof. B. Espen Eckbo, Dartmouth College
Planet Fitness, Inc. (PLNT)
Sector: Consumer Cyclical; Industry: Leisure

Planet Fitness, Inc., together with its subsidiaries, franchises and operates fitness centers under the Planet Fitness name. It operates through three segments: Franchise, Corporate-Owned Stores, and Equipment. The Equipment segment engages in the sale of fitness equipment to franchisee-owned stores in the United States.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2017-04-19 Rondeau Christopher Chief Executive Officer Sell 20,000 $18.67 $373,350 Yes
2017-04-18 Rondeau Christopher Chief Executive Officer Sell 20,000 $18.69 $373,800 Yes
2017-04-07 Rondeau Christopher Chief Executive Officer Sell 20,000 $19.13 $382,592 Yes
2017-04-06 Rondeau Christopher Chief Executive Officer Sell 20,000 $19.27 $385,440 Yes
2017-03-23 Rondeau Christopher Chief Executive Officer Sell 20,000 $19.73 $394,652 Yes
2017-03-22 Rondeau Christopher Chief Executive Officer Sell 20,000 $19.73 $394,548 Yes
2017-03-14 Spinelli Stephen JR Director Sell 25,000 $20.44 $511,000 Yes
2017-03-14 LIVELY DORVIN D Chief Financial Officer Sell 200,000 $20.44 $4,088,000 Yes
2017-03-14 LeComte Pierre 10%-Owner, Director Sell 14,775,000 $20.44 $302,001,000 Yes
2017-03-14 TSG6 Management L.L.C. 10%-Owner Sell 14,775,000 $20.44 $302,001,000 Yes
2017-03-14 Esserman Charles 10%-Owner, Director Sell 14,775,000 $20.44 $302,001,000 Yes
2017-03-07 Rondeau Christopher Chief Executive Officer Sell 20,000 $20.82 $416,348 Yes
2017-03-06 Rondeau Christopher Chief Executive Officer Sell 20,000 $21.31 $426,280 Yes
2017-03-02 LIVELY DORVIN D Chief Financial Officer Sell 468 $22.00 $10,296 Yes
2017-03-01 LIVELY DORVIN D Chief Financial Officer Sell 2,469 $22.00 $54,319 Yes
2017-02-23 Rondeau Christopher Chief Executive Officer Sell 20,000 $21.09 $421,826 Yes
2017-02-22 Rondeau Christopher Chief Executive Officer Sell 20,000 $21.40 $428,098 Yes
2017-02-10 Rondeau Christopher Chief Executive Officer Sell 20,000 $21.50 $429,934 Yes
2017-02-09 Rondeau Christopher Chief Executive Officer Sell 20,000 $21.56 $431,240 Yes
2017-01-24 Rondeau Christopher Chief Executive Officer Sell 20,000 $20.31 $406,156 Yes
2017-01-23 Rondeau Christopher Chief Executive Officer Sell 20,000 $19.97 $399,486 Yes
2017-01-13 Grondahl Marc Director Sell 99,949 $20.63 $2,061,898 Yes
2017-01-12 Rondeau Christopher Chief Executive Officer Sell 20,000 $20.38 $407,508 Yes
2017-01-12 Grondahl Marc Director Sell 96,582 $20.37 $1,967,607 Yes
2017-01-11 Rondeau Christopher Chief Executive Officer Sell 20,000 $20.46 $409,208 Yes
2017-01-11 Grondahl Marc Director Sell 94,289 $20.47 $1,929,634 Yes
2017-01-10 Grondahl Marc Director Sell 117,220 $20.07 $2,352,652 Yes
2017-01-09 Grondahl Marc Director Sell 46,251 $20.02 $925,755 Yes
2017-01-06 Grondahl Marc Director Sell 52,591 $20.07 $1,055,286 Yes
2017-01-05 Grondahl Marc Director Sell 63,092 $20.14 $1,270,603 Yes

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