ALXN
Alexion Pharmaceuticals Inc
Alexion Pharmaceuticals Inc historical holders
total: 4
Viking Global Investors Alexion Pharmaceuticals Inc transactions over time
- Total transactions:
- 10
- New positions:
- 2
- Sold out:
- 2
- Added:
- 2
- Reduced:
- 4
- Held since:
- 2015 Q2
- Held for:
- 1 quarter
- Latest activity:
- 2015 Q3
Ole Andreas Halvorsen has been an institutional investor in Alexion Pharmaceuticals Inc (ALXN) since at least 2013 Q2. According to 2026 Q1 report, Ole Andreas Halvorsen doesn't hold any shares. In our earliest available record from 2013 Q2, Viking Global Investors held about 5.54M shares of ALXN. Ole Andreas Halvorsen later completely sold out the position and reinvested in ALXN again in 2015 Q2. Since at least 2013 Q2, Viking Global Investors has made 9 more transactions in this position.
When did Ole Andreas Halvorsen exit their ALXN position?
Ole Andreas Halvorsen no longer holds Alexion Pharmaceuticals Inc (ALXN). They sold off their entire position in 2015 Q3, closing out an investment that began in 2013 Q2.
Has Ole Andreas Halvorsen reinvested in ALXN after selling?
Yes, Ole Andreas Halvorsen has shown renewed interest in Alexion Pharmaceuticals Inc (ALXN). After completely selling their position, they reinitiated an investment in 2015 Q2, demonstrating continued conviction in this ticker.
Estimated cost basis*
- Weighted AVG buy price:
- $180.77
- Weighted AVG sell price:
- $180.77
ALXN transactions history by Viking Global Investors
10 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2015 Q3
|
0.00%
|
$180.77
|
-100% (-201,756)
|
|||
|
2015 Q2
|
0.14%
|
$180.77
|
new
|
|||
|
2015 Q1
|
0.00%
|
$185.03
|
-100% (-390,271)
|
|||
|
2014 Q4
|
0.33%
|
$185.03
|
-82.25% (-1,808,180)
|
|||
|
2014 Q3
|
1.46%
|
$165.82
|
+9.59% (+192,359)
|
|||
|
2014 Q2
|
1.37%
|
$156.25
|
+9.23% (+169,434)
|
|||
|
2014 Q1
|
1.17%
|
$152.13
|
-36.16% (-1,040,350)
|
|||
|
2013 Q4
|
1.78%
|
$132.88
|
-16.72% (-577,632)
|
|||
|
2013 Q3
|
2.22%
|
$116.16
|
-37.70% (-2,090,309)
|
|||
|
2013 Q2
|
2.84%
|
$92.24
|
new or own*
|
|||
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.