Cathie Wood Illumina, Inc. Transaction History

Ark Investment Management LLC

$14.2 Billion
Q3 2025

A detailed history of Cathie Wood (Ark Investment Management LLC) transactions in Illumina, Inc. stock. As of the latest transaction made, Ark Investment Management LLC holds 1,467,879 shares of ILMN stock, worth $177 Million. This represents 0.98% of its overall portfolio holdings.

Number of Shares

1,467,879

Previous 1,168,078 25.67%

Holding current value

$177 Million

Previous $111 Million 25.09%

% of portfolio

0.98%

Previous 0.92%

22 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	BUY	$91.69 - $109.88 $27.5 Million - $32.9 Million	299,801 Added 25.67%	1,467,879 $139 Million
Q2 2025 Jul 30, 2025	BUY	$70.3 - $95.41 $19.2 Million - $26 Million	272,759 Added 30.47%	1,168,078 $111 Million
Q1 2025 May 07, 2025	BUY	$79.34 - $144.22 $16.6 Million - $30.1 Million	208,989 Added 30.45%	895,319 $71 Million
Q4 2024 Feb 04, 2025	BUY	$128.99 - $155.15 $88.5 Million - $106 Million	686,330 New	686,330 $91.7 Million
Q1 2021 May 13, 2021	SELL	$361.28 - $504.76 $18.3 Million - $25.5 Million	-50,585 Closed	0 $0

Q4 2020 Feb 12, 2021	SELL	$292.7 - $370.96 $272 Million - $344 Million	-928,078 Reduced 94.83%	50,585 $18.7 Million
Q3 2020 Oct 30, 2020	BUY	$268.51 - $400.74 $13.5 Million - $20.1 Million	50,126 Added 5.4%	978,663 $302 Million
Q2 2020 Aug 11, 2020	SELL	$256.46 - $373.01 $19.4 Million - $28.2 Million	-75,489 Reduced 7.52%	928,537 $344 Million
Q1 2020 May 14, 2020	BUY	$209.2 - $335.53 $57.8 Million - $92.7 Million	276,286 Added 37.96%	1,004,026 $274 Million
Q4 2019 Jan 31, 2020	BUY	$288.29 - $335.49 $9.35 Million - $10.9 Million	32,430 Added 4.66%	727,740 $241 Million
Q3 2019 Nov 12, 2019	BUY	$266.84 - $378.23 $42.1 Million - $59.7 Million	157,779 Added 29.35%	695,310 $212 Million
Q2 2019 Jul 30, 2019	BUY	$300.59 - $368.15 $21.2 Million - $26 Million	70,578 Added 15.11%	537,531 $198 Million
Q1 2019 May 13, 2019	BUY	$272.57 - $321.18 $41 Million - $48.3 Million	150,313 Added 47.47%	466,953 $145 Million
Q4 2018 Feb 01, 2019	BUY	$272.46 - $366.54 $12.5 Million - $16.8 Million	45,819 Added 16.92%	316,640 $95 Million
Q3 2018 Nov 07, 2018	SELL	$279.04 - $367.06 $17.3 Million - $22.8 Million	-62,044 Reduced 18.64%	270,821 $99.4 Million
Q2 2018 Aug 07, 2018	BUY	$228.17 - $292.07 $18.5 Million - $23.7 Million	81,265 Added 32.3%	332,865 $93 Million
Q1 2018 May 14, 2018	BUY	$209.54 - $253.91 $17.9 Million - $21.7 Million	85,491 Added 51.47%	251,600 $59.5 Million
Q4 2017 Feb 12, 2018	BUY	$202.23 - $230.03 $8.05 Million - $9.16 Million	39,810 Added 31.52%	166,109 $36.3 Million
Q3 2017 Nov 09, 2017	BUY	$172.3 - $213.93 $3.88 Million - $4.81 Million	22,490 Added 21.66%	126,299 $25.2 Million
Q2 2017 Aug 11, 2017	SELL	N/A	-16,076 Reduced 13.41%	103,809 $18 Million
Q1 2017 May 15, 2017	SELL	N/A	-36,228 Reduced 23.21%	119,885 $20.5 Million
Q4 2016 Feb 13, 2017	BUY	N/A	156,113	156,113 $20 Million

Others Institutions Holding ILMN

# of Institutions

906

Shares Held

156M

Call Options Held

4.75M

Put Options Held

903K

View Full List

About ILLUMINA, INC.

Ticker ILMN
Exchange NASDAQ
Sector Healthcare
Industry Diagnostics & Research
Shares Outstandng 157,300,000
Market Cap $19B
Description
Illumina, Inc. provides sequencing and array-based solutions for genetic and genomic analysis. Its products and services serve customers in a range of markets enabling the adoption of genomic solutions in research and clinical settings for applications in the life sciences, oncology, reproductive health, agriculture, and other emerging segments....

More about ILMN

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