ALEXION PHARMACEUTICALS INC

CUSIP: 015351109 Class: COM

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q2 2021
Shares 258,438 Value ($000) $47,478 Avg Close — Range —
Q1 2021
Shares 277,024 Value ($000) $42,360 Avg Close — Range —
Q4 2020
Shares 293,059 Value ($000) $45,788 Avg Close — Range —
Q3 2020
Shares 297,980 Value ($000) $34,098 Avg Close — Range —
Q2 2020
Shares 308,482 Value ($000) $34,624 Avg Close — Range —
Q1 2020
Shares 306,111 Value ($000) $27,486 Avg Close — Range —
Q4 2019
Shares 313,511 Value ($000) $33,906 Avg Close — Range —
Q3 2019
Shares 311,593 Value ($000) $30,517 Avg Close — Range —
Q2 2019
Shares 310,394 Value ($000) $40,655 Avg Close — Range —
Q1 2019
Shares 320,191 Value ($000) $43,283 Avg Close — Range —
Q4 2018
Shares 320,868 Value ($000) $31,240 Avg Close — Range —
Q3 2018
Shares 330,453 Value ($000) $45,936 Avg Close — Range —
Q2 2018
Shares 335,552 Value ($000) $41,659 Avg Close — Range —
Q1 2018
Shares 351,534 Value ($000) $39,182 Avg Close — Range —
Q4 2017
Shares 355,541 Value ($000) $42,519 Avg Close — Range —
Q3 2017
Shares 356,127 Value ($000) $49,961 Avg Close — Range —
Q2 2017
Shares 363,413 Value ($000) $44,216 Avg Close — Range —
Q1 2017
Shares 372,416 Value ($000) $45,152 Avg Close — Range —
Q4 2016
Shares 366,593 Value ($000) $44,853 Avg Close — Range —
Q3 2016
Shares 365,260 Value ($000) $44,759 Avg Close — Range —
Q2 2016
Shares 377,048 Value ($000) $44,024 Avg Close — Range —
Q1 2016
Shares 377,167 Value ($000) $52,509 Avg Close — Range —
Q4 2015
Shares 377,770 Value ($000) $72,060 Avg Close — Range —
Q3 2015
Shares 381,749 Value ($000) $59,702 Avg Close — Range —
Q2 2015
Shares 369,537 Value ($000) $66,801 Avg Close — Range —
Q1 2015
Shares 379,892 Value ($000) $65,835 Avg Close — Range —
Q4 2014
Shares 381,529 Value ($000) $70,594 Avg Close — Range —
Q3 2014
Shares 384,485 Value ($000) $63,755 Avg Close — Range —
Q2 2014
Shares 386,183 Value ($000) $60,341 Avg Close — Range —
Q1 2014
Shares 395,269 Value ($000) $60,132 Avg Close — Range —
Q4 2013
Shares 397,358 Value ($000) $52,803 Avg Close — Range —
Q3 2013
Shares 410,001 Value ($000) $47,626 Avg Close — Range —
Q2 2013
Shares 425,663 Value ($000) $39,263 Avg Close — Range —