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Illumina Inc

ILMN

Illumina Inc

Illumina Inc historical holders

total: 9

Triple Frond Partners Illumina Inc transactions over time

Total transactions:
3
New positions:
1
Reduced:
2
Held since:
2025 Q3
Held for:
3 quarters
Latest activity:
2026 Q1
Triple Frond Partners has been an institutional investor in Illumina Inc (ILMN) since 2025 Q3. According to 2026 Q1 report, Triple Frond Partners holds 306,460 shares with a market value of roughly $37.77M representing 3.92% of their equity portfolio. The fund/company first acquired ILMN in 2025 Q3, initially purchasing 390,600 shares. Since the initial investment, Triple Frond Partners has made 2 more transactions in this position.

Does Triple Frond Partners still hold ILMN?

Yes, Triple Frond Partners continues to hold Illumina Inc (ILMN). According to their 2026 Q1 report, they maintain a position of 306,460 shares valued at approximately $37.77M, representing 3.92% of their equity portfolio.

When did Triple Frond Partners first invest in ILMN?

Triple Frond Partners first invested in Illumina Inc (ILMN) in 2025 Q3 at the reported quarter-end price of $94.97 per share, acquiring 390,600 shares in their initial purchase.

What is Triple Frond Partners's average cost basis for ILMN?

Based on historical transaction data, Triple Frond Partners's estimated cost basis for Illumina Inc (ILMN) is approximately $94.97 per share. This represents their average reported price* across all buy transactions.

Estimated cost basis*

Weighted AVG buy price:
$94.97
Weighted AVG sell price:
$124.80

ILMN transactions history by Triple Frond Partners

3 results
Period % of
portfolio
Shares
held after*
Reported
price*
Value* % (shares)
of activity
% change
to portfolio
2026 Q1
3.92%
306,460
$123.26
$37,774,000
-18.09% (-67,700)
-0.87%
2025 Q4
5.10%
374,160
$131.16
$49,075,000
-4.21% (-16,440)
-0.23%
2025 Q3
4.04%
390,600
$94.97
$37,095,000
new
+4.04%
* 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.