Why insider trading matters?

When insiders buy shares on the open market, this can thus be regarded as a strong endorsement by those that know the company the best -- they are literally betting their own money on the company's future. Insider selling, however, is not necessarily meaningful in any way, as there is a range of reasons for insiders to liquidate (some) of the shares they own.

- Seeking Alpha
Altimmune, Inc. (ALT)
Sector: Healthcare; Industry: Biotechnology

Altimmune, Inc., a clinical stage biopharmaceutical company, focused developing treatments for liver disease, immune modulating therapies, and vaccines. The company also develops veterinary product candidates.


Trade Date Insider Title Buy/Sell #Shares Price Value Option
2020-06-15 Venrock Healthcare Capital Partners III, L.P. 10%-Owner Buy 1,500,000 $7.54 $11,310,000 No
2020-05-28 Venrock Healthcare Capital Partners III, L.P. 10%-Owner Buy 1,303,636 $8.74 $11,395,493 No
2020-05-15 VELOCITY PHARMACEUTICAL HOLDINGS LLC 10%-Owner Sell 200,000 $4.79 $957,100 No
2019-09-05 Garg Vipin K President and CEO Buy 20,000 $2.10 $42,000 No
2018-10-09 Pisano Wayne Director Buy 2,000 $4.59 $9,180 No
2018-05-25 Enright William President and CEO Buy 1,300 $0.51 $660 No
2017-06-06 Roberts M Scot Chief Scientific Officer Buy 449 $4.42 $1,985 No
2017-12-29 SAYARE MITCHEL Director Buy 5,100 $1.95 $9,963 No
2017-12-29 SCHAFFER DERACE L Director Buy 97,410 $1.92 $187,450 No
2017-12-27 SCHAFFER DERACE L Director Buy 147,130 $1.76 $259,356 No
2017-12-07 SCHAFFER DERACE L Director Buy 23,745 $1.78 $42,304 No
2017-12-05 SCHAFFER DERACE L Director Buy 26,010 $1.79 $46,588 No
2017-11-30 SCHAFFER DERACE L Director Buy 33,315 $1.91 $63,639 No
2017-11-27 SCHAFFER DERACE L Director Buy 21,808 $2.03 $44,282 No
2017-11-21 SCHAFFER DERACE L Director Buy 18,331 $2.08 $38,215 No
2017-08-25 SCHAFFER DERACE L Director Buy 67,326 $2.25 $151,282 No
2017-08-23 Drutz David Director Buy 10,000 $2.21 $22,097 No
2017-08-23 SCHAFFER DERACE L Director Buy 50,000 $2.21 $110,263 No
2017-06-02 GILL JOHN Director Buy 1,000 $4.34 $4,344 No
2016-12-09 PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 10%-Owner Sell 1,354,632 $3.26 $4,411,696 No
2016-04-13 RICHMAN ERIC I Director Sell 329,354 $2.20 $724,579 Yes
2016-04-08 RICHMAN ERIC I Director Sell 11,767 $2.20 $25,887 Yes
2015-03-19 St Peter Steven Director Buy 25,000 $1.65 $41,212 No
2015-01-07 CHANG LINDA L SVP, CFO & Secretary Sell 29,600 $2.10 $62,160 Yes
2014-09-22 PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. 10%-Owner Buy 15,000 $1.55 $23,185 No
2011-12-12 Runge Jeffrey W. Director Buy 20,000 $1.30 $26,000 No
2011-11-22 FUERST THOMAS RICHARD SVP, Chief Scientific Officer Buy 5,000 $1.27 $6,350 No
2011-11-16 CHANG LINDA L SVP & CFO Buy 10,000 $1.38 $13,842 No
2011-11-10 FUERST THOMAS RICHARD EVP, Chief Scientific Officer Buy 10,000 $1.51 $15,098 No
2011-11-10 Karp Jordan P SVP, General Counsel Buy 10,000 $1.51 $15,064 No

Insider Smart

Mohawk Group Holdings, Inc. (MWK) - Multiple insiders bought MWK in June around $5, stock moved sideways for a month then made a 60% jump in 10 days. Patience is the key.

Insider Smart

Upwork Inc (UPWK) - GRETSCH GREGORY C. Director of Upwork, made a bulk buy of 500K shares right before the big gap up, which is also the largest buy of the past 12 months.