Christopher Bloomstran
Semper Augustus Investments Group
Christopher Bloomstran Alaska Air Group Inc stake
total: 90
Semper Augustus Investments Group ALK trades
- Total transactions:
- 25
- New positions:
- 1
- Added:
- 18
- Reduced:
- 6
- Held since:
- 2020 Q1
- Held for:
- 25 quarters
- Latest activity:
- 2026 Q1
According to 2026 Q1 report, Christopher Bloomstran holds 1,695,062 Alaska Air Group Inc (ALK) shares with a market value of roughly $62.34M accounting for 7.45% of the overall portfolio. To date, the estimated cost basis is nearly $38.23 for "buy" trades and estimated average "sell" price is $51.39. Semper Augustus Investments Group first purchased ALK in 2020 Q1, initially acquiring 93,227 shares. Since the initial investment in Alaska Air Group Inc (ALK), Semper Augustus Investments Group has made 24 more transactions.
When did Christopher Bloomstran buy Alaska Air Group Inc (ALK)?
Christopher Bloomstran first invested in Alaska Air Group Inc (ALK) in 2020 Q1 at the reported quarter-end price of $28.47 per share.
What's the cost basis of Semper Augustus Investments Group's ALK stake?
The estimated cost basis for Alaska Air Group Inc (ALK) stake is around $38.23 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $38.23
- Weighted AVG sell price:
- $51.39
Christopher Bloomstran's historical trades in Alaska Air Group Inc
25 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2026 Q1
|
7.45%
|
1,695,062
|
$36.78
|
$62,344,380
|
+314.16% (+1,285,780)
|
+5.65%
|
|
2025 Q4
|
2.37%
|
409,282
|
$50.30
|
$20,586,885
|
+8.11% (+30,691)
|
+0.18%
|
|
2025 Q3
|
2.35%
|
378,591
|
$49.78
|
$18,846,260
|
+1.77% (+6,578)
|
+0.04%
|
|
2025 Q2
|
2.59%
|
372,013
|
$49.48
|
$18,407,203
|
+7.88% (+27,179)
|
+0.19%
|
|
2025 Q1
|
2.74%
|
344,834
|
$49.22
|
$16,972,729
|
-1.50% (-5,241)
|
-0.05%
|
|
2024 Q4
|
4.05%
|
350,075
|
$64.75
|
$22,667,356
|
+0.64% (+2,211)
|
+0.03%
|
|
2024 Q3
|
2.66%
|
347,864
|
$45.21
|
$15,726,931
|
+1.78% (+6,097)
|
+0.05%
|
|
2024 Q2
|
2.47%
|
341,767
|
$40.40
|
$13,807,387
|
+6.85% (+21,899)
|
+0.16%
|
|
2024 Q1
|
2.52%
|
319,868
|
$42.99
|
$13,751,125
|
+1.83% (+5,762)
|
+0.05%
|
|
2023 Q4
|
2.57%
|
314,106
|
$39.07
|
$12,272,121
|
+17.15% (+45,985)
|
+0.38%
|
|
2023 Q3
|
2.38%
|
$37.08
|
+5.32% (+13,555)
|
|||
|
2023 Q2
|
3.20%
|
$53.18
|
+11.97% (+27,206)
|
|||
|
2023 Q1
|
2.44%
|
$41.96
|
+1.32% (+2,959)
|
|||
|
2022 Q4
|
2.62%
|
$42.94
|
+7.65% (+15,954)
|
|||
|
2022 Q3
|
2.47%
|
$39.15
|
+3.03% (+6,129)
|
|||
|
2022 Q2
|
2.40%
|
$40.05
|
+31.12% (+48,013)
|
|||
|
2022 Q1
|
2.28%
|
$58.01
|
+13.69% (+18,582)
|
|||
|
2021 Q4
|
2.21%
|
$52.10
|
+11.04% (+13,496)
|
|||
|
2021 Q3
|
2.31%
|
$58.60
|
+37.80% (+33,527)
|
|||
|
2021 Q2
|
1.78%
|
$60.30
|
-3.39% (-3,111)
|
|||
|
2021 Q1
|
2.40%
|
$69.21
|
-0.09% (-79)
|
|||
|
2020 Q4
|
2.09%
|
$52.00
|
-0.16% (-145)
|
|||
|
2020 Q3
|
1.73%
|
$36.63
|
-0.50% (-465)
|
|||
|
2020 Q2
|
1.90%
|
$36.26
|
-0.78% (-727)
|
|||
|
2020 Q1
|
1.67%
|
$28.47
|
new
|
|||
* 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.