Illumina is a medical - diagnostics & research company in the healthcare sector on NASDAQ, led by Jacob Thaysen, with a market cap of $20.6B. As of Q3 2025, 102% of shares are held by 748 institutional investors, with Capital World Investors as the largest holder at 13.0%.
Overview of institutional ownership in ILMN and ILMNV as of Q3 2025 with a market cap of $14.6B
Based on market cap of $14.6B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in ILMN and ILMNV as of Q3 2025
| Institution | Position Value |
|---|---|
C Capital World Investors Institution | $1.9B 0.26% of portfolio |
B BlackRock, Inc. Institution | $1.8B 0.03% of portfolio |
VANGUARD GROUP INC Institution | $1.4B 0.02% of portfolio |
STATE STREET CORP Institution | $569.8M 0.02% of portfolio |
Sessa Capital IM, L.P. Hedge Fund•Long/Short | $445.1M 11.32% of portfolio |
LOOMIS SAYLES & CO L P Long Only Manager | $407.2M 0.49% of portfolio |
WCM INVESTMENT MANAGEMENT/CA Long Only Manager | $384.2M 0.80% of portfolio |
Corvex Management LP Hedge Fund•Event Driven | $363.7M 13.76% of portfolio |
AQR CAPITAL MANAGEMENT LLC Hedge Fund•Multi-Strategy | $315.9M 0.20% of portfolio |
GEODE CAPITAL MANAGEMENT LLC ETF Provider | $259.3M 0.02% of portfolio |
Institutional buying and selling activity for ILMN and ILMNV in Q3 2025
| Institution | Net Bought |
|---|---|
C Capital World Investors Institution | +$316.4M +3.3M shares |
P Pacer Advisors, Inc. Institution | +$61.7M +649.3K shares |
I Ilex Capital Partners LLP Institution | +$50.2M +528.3K shares |
S Swedbank AB Institution | +$46.6M +491.0K shares |
FMR LLC Institution | +$42.0M +442.5K shares |
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy | +$41.3M +434.6K shares |
S Southpoint Capital Advisors LP Hedge Fund•Long/Short | +$38.0M +400.0K shares |
T Triple Frond Partners LLC Institution | +$37.1M +390.6K shares |
STATE STREET CORP Institution | +$36.3M +382.5K shares |
ARK Investment Management LLC ETF Provider | +$28.5M +299.8K shares |
| Institution | Net Sold |
|---|---|
PointState Capital LP Hedge Fund•Multi-Strategy | −$109.2M −1.2M shares |
B BlackRock, Inc. Institution | −$63.8M −671.3K shares |
Bank of New York Mellon Corp Institution | −$62.2M −655.0K shares |
A AKO CAPITAL LLP Institution | −$50.9M −534.0K shares |
VANGUARD GROUP INC Institution | −$49.9M −525.2K shares |
I Ion Asset Management Ltd. Institution | −$33.9M −356.9K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | −$30.2M −316.3K shares |
D Duquesne Family Office LLC Institution | −$28.7M −300.6K shares |
Spyglass Capital Management LLC Long Only Manager | −$26.3M −276.4K shares |
E EDMOND DE ROTHSCHILD HOLDING S.A. Institution | −$24.2M −254.5K shares |
Institutions that initiated new positions or completely exited ILMN and ILMNV in Q3 2025
| Institution | Position Value |
|---|---|
T Triple Frond Partners LLC Institution | $37.1M 390.6K shares |
G GLENVIEW CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short | $9.7M 101.7K shares |
Morningstar Investment Management LLC Long Only Manager | $2.8M 29.9K shares |
L LSV ASSET MANAGEMENT Long Only Manager | $1.9M 20.4K shares |
Integrated Quantitative Investments LLC Long Only Manager | $1.1M 11.9K shares |
M Mediolanum International Funds Ltd Institution | $913.6K 9.9K shares |
T Torrey Growth & Income Advisors RIA/Wealth | $820.1K 8.6K shares |
Requisite Capital Management, LLC RIA/Wealth | $597.6K 6.3K shares |
Global Endowment Management, LP Fund of Funds | $462.1K 4.9K shares |
Optimize Financial Inc RIA/Wealth | $407.8K 4.3K shares |
| Institution | Previous Position |
|---|---|
A AKO CAPITAL LLP Institution | $50.9M 534.0K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | $30.2M 316.3K shares |
D Duquesne Family Office LLC Institution | $28.7M 300.6K shares |
M Maple Rock Capital Partners, Inc. Hedge Fund•Multi-Strategy | $21.1M 220.9K shares |
N Nan Fung Group Holdings Ltd Institution | $11.4M 119.2K shares |
Symphony Financial, Ltd. Co. RIA/Wealth | $10.6M 110.6K shares |
TrimTabs Asset Management, LLC Long Only Manager | $7.9M 82.9K shares |
Jain Global LLC Hedge Fund•Multi-Strategy | $6.7M 69.7K shares |
LEUCADIA NATIONAL CORP Institution | $5.7M 60.0K shares |
Marshall Wace LLP Institution | $5.7M 59.6K shares |
Institutions with the largest Call and Put options positions in ILMN and ILMNV as of Q3 2025
| Institution | Position Value |
|---|---|
PointState Capital LP Hedge Fund•Multi-Strategy | $156.4M 16.5K contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $140.1M 14.8K contracts |
B BNP PARIBAS ARBITRAGE, SA Institution | $113.5M 119.6 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $52.8M 5.6K contracts |
J JANE STREET GROUP, LLC Institution | $28.3M 3.0K contracts |
P PEAK6 LLC Institution | $27.0M 2.8K contracts |
W WOLVERINE TRADING, LLC Institution | $14.5M 1.6K contracts |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | $7.7M 811.0 contracts |
Walleye Trading LLC RIA/Wealth | $5.9M 624.0 contracts |
S SIG BROKERAGE, LP Institution | $5.8M 615.0 contracts |
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $36.1M 3.8K contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $14.8M 1.6K contracts |
B BNP PARIBAS ARBITRAGE, SA Institution | $6.5M 6.8 contracts |
W WOLVERINE TRADING, LLC Institution | $4.7M 510.0 contracts |
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro | $4.6M 485.0 contracts |
Walleye Trading LLC RIA/Wealth | $4.1M 433.0 contracts |
D D. E. Shaw & Co., Inc. Institution | $3.8M 399.0 contracts |
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage | $3.8M 397.0 contracts |
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $3.3M 346.0 contracts |
J JANE STREET GROUP, LLC Institution | $3.0M 315.0 contracts |
Institutions with ILMN and ILMNV as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
Corvex Management LP Hedge Fund•Event Driven | 13.76% $363.7M |
Sessa Capital IM, L.P. Hedge Fund•Long/Short | 11.32% $445.1M |
E Eagle Health Investments LP Hedge Fund•Long/Short | 8.03% $30.6M |
K KIDS CAPITAL MANAGEMENT, L.P. Institution | 7.51% $9.5M |
I Ion Asset Management Ltd. Institution | 5.29% $37.4M |
T Triple Frond Partners LLC Institution | 4.78% $37.1M |
Casdin Capital, LLC Hedge Fund•Sector | 4.32% $49.9M |
RIMA SENVEST MANAGEMENT, L.L.C. Hedge Fund•Multi-Strategy | 4.30% $134.0M |
GUARDCAP ASSET MANAGEMENT Ltd Long Only Manager | 4.08% $175.9M |
S Southpoint Capital Advisors LP Hedge Fund•Long/Short | 3.84% $142.5M |
Discover hedge funds investing in ILMN and ILMNV

ILMN and ILMNV
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Semiconductors Technology | $463.8M | 4.15% | |
Specialty Retail Consumer Cyclical | $346.6M | 3.10% | |
Auto - Manufacturers Consumer Cyclical | $288.5M | 2.58% |
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