Chang Michael N

CIK 00013809011 companySAN DIEGO, CA

SEC Profile

Transactions

Companies

Filings

CIK

0001380901

Recent Transactions

50 trades

Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Common stock
2013-10-24$10.75/sh−1,026,956→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-10-24$1.37/sh−11,000→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-10-24$0.93/sh−30,000→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-10-24$3.22/sh−2,000→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-10-24$0.93/sh−80,000→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-10-24$2.03/sh−80,000→ 0 total
Disposition to Issuer
OPTIMER PHARMACEUTICALS INC
Common stock
2013-10-24$10.75/sh−441,761→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$11.41/sh+9,000→ 441,761 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$9.70/sh+100,000→ 948,956 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$6.90/sh+70,000→ 1,018,956 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$9.56/sh+8,000→ 1,026,956 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$2.17/sh+4,615→ 342,761 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$9.70/sh+30,000→ 372,761 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$6.90/sh+30,000→ 402,761 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-09-04$10.75/sh+30,000→ 432,761 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−100,000→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−70,000→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−8,000→ 2,000 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−4,615→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−30,000→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−30,000→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−30,000→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-09-04−9,000→ 11,000 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-04-23$1.08/sh+117,263→ 848,956 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-04-23−117,263→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-04-09−18,750→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-04-09$12.34/sh+103,125→ 731,693 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-04-09−84,375→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2013-04-03$12.34/sh+145,312→ 628,568 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-04-03−42,187→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2013-04-03−103,125→ 0 total
Award
OPTIMER PHARMACEUTICALS INC
Common stock
2012-01-01+5,000→ 483,256 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2011-12-05+50,000→ 50,000 total
Other
OPTIMER PHARMACEUTICALS INC
Common stock
2011-11-15$9.72/sh+530→ 338,146 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2011-05-27+150,000→ 150,000 total
Other
OPTIMER PHARMACEUTICALS INC
Common stock
2011-05-16$7.71/sh+1,971→ 337,616 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2011-04-25$1.08/sh+100,000→ 478,256 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2011-04-25+100,000→ 117,263 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2011-01-26+20,000→ 20,000 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2011-01-21+150,000→ 150,000 total
Award
OPTIMER PHARMACEUTICALS INC
Stock Option (Right to Buy)
2010-12-01+10,000→ 10,000 total
Other
OPTIMER PHARMACEUTICALS INC
Common stock
2010-11-15$7.71/sh+1,075→ 335,645 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2010-08-18+50,000→ 50,000 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2010-06-01−3,461→ 0 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Common stock
2010-06-01$2.17/sh+6,922→ 378,256 total
Exercise/Conversion
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2010-06-01−3,461→ 0 total
Other
OPTIMER PHARMACEUTICALS INC
Common stock
2010-05-17$9.57/sh+1,401→ 334,570 total
Award
OPTIMER PHARMACEUTICALS INC
Common stock
2010-05-05+65,000→ 371,334 total
Gift
OPTIMER PHARMACEUTICALS INC
Common Stock
2010-03-29−4,615→ 306,334 total
Award
OPTIMER PHARMACEUTICALS INC
Stock option (right to buy)
2010-01-08+80,000→ 80,000 total

Companies

OPTIMER PHARMACEUTICALS INC
Director

Recent Filings

Address

10110 SORRENTO VALLEY ROAD SUITE C

SAN DIEGO, CA, 92121

View on SEC.gov