Illumina
ILMN
775 hedge funds and large institutions have $14.9B invested in Illumina in 2025 Q3 according to their latest regulatory filings, with 112 funds opening new positions, 273 increasing their positions, 270 reducing their positions, and 71 closing their positions.
466% more call options, than puts
Call options by funds: $601M | Put options by funds: $106M
58% more first-time investments, than exits
New positions opened: 112 | Existing positions closed: 71
5% more funds holding
Funds holding: 738 → 775 (+37)
4.03% more ownership
Funds ownership: 98.23% → 102.26% (+4%)
1% more repeat investments, than reductions
Existing positions increased: 273 | Existing positions reduced: 270
0% more capital invested
Capital invested by funds: $14.8B → $14.9B (+$72.3M)
18% less funds holding in top 10
Funds holding in top 10: 11 → 9 (-2)
Top Buyers
| 1 |
Capital World Investors
Los Angeles,
California
|
+$330M |
| 2 |
Pacer Advisors
Malvern,
Pennsylvania
|
+$64.4M |
| 3 |
ICP
Ilex Capital Partners
London,
United Kingdom
|
+$52.4M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
+$43.9M |
| 5 |
WorldQuant Millennium Advisors
New York
|
+$43.1M |
Top Sellers
| 1 |
PC
PointState Capital
New York
|
-$114M |
| 2 |
BlackRock
New York
|
-$66.6M |
| 3 |
Bank of New York Mellon
New York
|
-$65M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$52.1M |
| 5 |
AC
AKO Capital
London,
United Kingdom
|
-$50.9M |
ILMN Hedge Fund Activity: Q3 2025 in Review
775 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Illumina (ILMN) for Q3 2025, worth a combined $14.9B — up 0.49% from $14.8B a quarter earlier.
Buyers outnumbered sellers: 112 funds opened new ILMN positions and 71 closed out — a net gain of 41 holders — while 273 added to existing stakes and 270 trimmed.
The largest buyer was Capital World Investors, adding an estimated $330M. The largest seller was PointState Capital, cutting an estimated $114M.
- 775 institutional investors held Illumina (ILMN) as of Q3 2025, up from 738 in Q2 2025.
- Funds reported $14.9B of Illumina stock for Q3 2025, up 0.49% quarter-over-quarter.
- 112 funds opened new Illumina positions in Q3 2025 and 71 closed out, a net change of +41 holders.
- The largest Illumina buyer in Q3 2025 was Capital World Investors, an estimated $330M added.
- The largest Illumina seller in Q3 2025 was PointState Capital, an estimated $114M sold.
Based on aggregated 13F filings for Q3 2025.