MOMENTA PHARMACEUTICALS INC

CUSIP: 60877T100 Class: COM

PRIMECAP MANAGEMENT CO/CA/'s Holding History (CIK: 0000763212)

Note: Option positions (PUT/CALL) are excluded.

Q3 2020
Shares 295,070 Value ($000) $15,485 Avg Close — Range —
Q2 2020
Shares 358,840 Value ($000) $11,939 Avg Close — Range —
Q1 2020
Shares 390,080 Value ($000) $10,610 Avg Close — Range —
Q4 2019
Shares 2,749,400 Value ($000) $54,246 Avg Close — Range —
Q3 2019
Shares 2,749,400 Value ($000) $35,632 Avg Close — Range —
Q2 2019
Shares 3,085,900 Value ($000) $38,419 Avg Close — Range —
Q1 2019
Shares 3,080,660 Value ($000) $44,762 Avg Close — Range —
Q4 2018
Shares 3,056,695 Value ($000) $33,746 Avg Close — Range —
Q3 2018
Shares 2,888,100 Value ($000) $75,957 Avg Close — Range —
Q2 2018
Shares 2,888,100 Value ($000) $59,062 Avg Close — Range —
Q1 2018
Shares 2,888,100 Value ($000) $52,419 Avg Close — Range —
Q4 2017
Shares 2,868,900 Value ($000) $40,021 Avg Close — Range —
Q3 2017
Shares 2,838,900 Value ($000) $52,520 Avg Close — Range —
Q2 2017
Shares 2,839,900 Value ($000) $47,994 Avg Close — Range —
Q1 2017
Shares 2,739,900 Value ($000) $36,578 Avg Close — Range —
Q4 2016
Shares 2,739,900 Value ($000) $41,235 Avg Close — Range —
Q3 2016
Shares 2,739,900 Value ($000) $32,029 Avg Close — Range —
Q2 2016
Shares 2,738,900 Value ($000) $29,580 Avg Close — Range —
Q1 2016
Shares 2,738,900 Value ($000) $25,307 Avg Close — Range —
Q4 2015
Shares 2,738,900 Value ($000) $40,645 Avg Close — Range —
Q3 2015
Shares 2,700,900 Value ($000) $44,322 Avg Close — Range —
Q2 2015
Shares 2,700,900 Value ($000) $61,608 Avg Close — Range —
Q1 2015
Shares 2,695,100 Value ($000) $40,966 Avg Close — Range —
Q4 2014
Shares 2,670,600 Value ($000) $32,154 Avg Close — Range —
Q3 2014
Shares 2,670,600 Value ($000) $30,285 Avg Close — Range —
Q2 2014
Shares 2,670,600 Value ($000) $32,261 Avg Close — Range —
Q1 2014
Shares 2,159,414 Value ($000) $25,157 Avg Close — Range —
Q4 2013
Shares 1,505,000 Value ($000) $26,608 Avg Close — Range —
Q3 2013
Shares 1,505,000 Value ($000) $21,657 Avg Close — Range —
Q2 2013
Shares 1,399,000 Value ($000) $21,069 Avg Close — Range —