SEC 13F Intelligence

Iridian Asset Management LLC/Ct / ALXN

Iridian Asset Management LLC/Ct’s Alexion Pharmaceuticals Inc Position

Does Iridian Asset Management LLC/Ct own Alexion Pharmaceuticals Inc (ALXN)? Not currently — the last reported position was 656.4K shares worth $103M in Q4 2020; the fund’s latest 13F (Q1 2026) no longer reports it.

Position Value
$103M
Q4 2020
Shares
656.4K
% of Portfolio
+1.87%
Quarters Held
9
position exited

Position History ALXN

Reported value by quarter
Q4 ’18: $243MQ4 ’18Q1 ’19: $296MQ2 ’19: $234MQ2 ’19Q3 ’19: $174MQ4 ’19: $186MQ4 ’19Q1 ’20: $177MQ2 ’20: $170MQ2 ’20Q3 ’20: $164MQ4 ’20: $103MQ4 ’20filingsflow.com
QuarterSharesValue% of Portfolio
Q4 2020656.4K$103M+1.87%
Q3 20201.44M$164M+3.59%
Q2 20201.51M$170M+3.75%
Q1 20201.98M$177M+4.29%
Q4 20191.72M$186M+3.05%
Q3 20191.77M$174M+2.72%
Q2 20191.78M$234M+3.38%
Q1 20192.19M$296M+3.77%
Q4 20182.49M$243M+3.26%

Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Iridian Asset Management LLC/Ct’s full portfolio or all institutional holders of ALXN.