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Ole Andreas Halvorsen

Viking Global Investors

Ole Andreas Halvorsen Artiva Biotherapeutics, Inc stake

total: 670

Viking Global Investors ARTV trades

Total transactions:
1
New positions:
1
Held since:
2026 Q2
Held for:
1 quarter
Latest activity:
2026 Q2
According to 2026 Q2 report, Ole Andreas Halvorsen holds 2,604,166 Artiva Biotherapeutics, Inc (ARTV) shares with a market value of roughly $25.26M accounting for 0.07% of the overall portfolio. To date, the estimated cost basis is nearly $9.7 for "buy" trades. Viking Global Investors first purchased ARTV in 2026 Q2, initially acquiring about 2.60M shares.

How many ARTV shares does Ole Andreas Halvorsen currently hold?

According to 2026 Q2 report, Ole Andreas Halvorsen holds 2,604,166 shares of Artiva Biotherapeutics, Inc (ARTV), valued at around $25.26M.

When did Ole Andreas Halvorsen buy Artiva Biotherapeutics, Inc (ARTV)?

Ole Andreas Halvorsen first invested in Artiva Biotherapeutics, Inc (ARTV) in 2026 Q2 at the reported quarter-end price of $9.70 per share.

What's the cost basis of Viking Global Investors's ARTV stake?

The estimated cost basis for Artiva Biotherapeutics, Inc (ARTV) stake is around $9.70 per share. This represents their average reported price* across all buy transactions

Estimated cost basis*

Weighted AVG buy price:
$9.70

Ole Andreas Halvorsen's historical trades in Artiva Biotherapeutics, Inc

1 result
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2026 Q2
0.07%
2,604,166
$9.70
$25,260,410
new
+0.07%
* 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.
* 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.