Ticker · CUSIP 30063P105

EXK

EXACT SCIENCES CORP

Basic Materials·Silver

···Share

Holders (tracked)

Combined shares

17,862,270

Combined value

$1.81B

Last close

$10.18

Quarter

2025Q4

Price is -90.0% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$10.18+6.40 (+169.31%)H $14.12 · L $3.22 · Avg Vol 13.4M

Tracked holders · last 8 quarters

+7 vs previous quarter over the last 8.

SEC event timeline

30 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+1,978,628 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) trimmed2026-02-17
−3,858,562 shares · 2025Q4
Position
D.E. Shaw & Co. added2026-02-17
+481,379 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+412,183 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
−1,184,503 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+1,224,082 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+180,575 shares · 2025Q4
Position
T. Rowe Price trimmed2026-02-17
−1,554,145 shares · 2025Q4
Position
Jeremy Grantham (GMO) opened position2026-02-17
+217,755 shares · 2025Q4
Position
Wellington Management trimmed2026-02-17
−3,890,988 shares · 2025Q4
Position
George Soros (Soros Fund Mgmt) opened position2026-02-13
+864,009 shares · 2025Q4
Position
Renaissance Technologies added2026-02-12
+990,280 shares · 2025Q4
Position
Cathie Wood (ARK Invest) trimmed2026-02-11
−2,186,091 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+3,430,733 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) exited2026-02-09
−198,287 shares · 2025Q4
Position
Mario Gabelli (GAMCO) opened position2026-02-05
+22,000 shares · 2025Q4
Position
Baillie Gifford & Co exited2026-01-23
−763,356 shares · 2025Q4
Position
Paul Tudor Jones (Tudor Investment) exited2025-12-09
−48,060 shares · 2025Q3
Position
D.E. Shaw & Co. trimmed2025-11-14
−48,231 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+63,894 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+15,791 shares · 2025Q3
Position
T. Rowe Price trimmed2025-11-14
−1,980,566 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−6,677,809 shares · 2025Q3
Position
Ron Baron (Baron Capital / BAMCO) added2025-11-14
+277,709 shares · 2025Q3
Position
Norges Bank (Norway SWF) exited2025-11-13
−910,277 shares · 2025Q3
Position
Renaissance Technologies added2025-11-13
+72,572 shares · 2025Q3
Position
Ken Fisher (Fisher Asset Mgmt) added2025-11-12
+40,258 shares · 2025Q3
Position
Norges Bank (Norway SWF) trimmed2025-11-12
−561,325 shares · 2024Q3
Position
Cathie Wood (ARK Invest) added2025-11-12
+2,186,132 shares · 2025Q3
Position
Baillie Gifford & Co trimmed2025-10-31
−16,660 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for EXK →

Follow-the-investor returns

If you'd copied each holder of EXK…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Ron Baron (Baron Capital / BAMCO)	2019Q2	$48.03	-78.8%	$9.7M
Cathie Wood (ARK Invest)	2020Q3	$54.71	-81.4%	$784
Steve Cohen (Point72)	2016Q1	$57.33	-82.2%	$44K
Steve Cohen (Point72)	2016Q1	$57.33	-82.2%	$44K
AQR Capital Management	2016Q3	$62.87	-83.8%	$22.7M
T. Rowe Price	2016Q1	$64.03	-84.1%	$1.7M
Wellington Management	2017Q2	$67.30	-84.9%	$14.6M
George Soros (Soros Fund Mgmt)	2020Q1	$74.11	-86.3%	$8.8M
Renaissance Technologies	2016Q1	$83.82	-87.9%	$16.2M
Ken Griffin (Citadel Advisors)	2016Q1	$87.41	-88.4%	$2.0M
Ken Griffin (Citadel Advisors)	2016Q1	$87.41	-88.4%	$2.0M
Ken Griffin (Citadel Advisors)	2016Q1	$87.41	-88.4%	$2.0M
Mario Gabelli (GAMCO)	2022Q4	$90.91	-88.8%	$224K
D.E. Shaw & Co.	2016Q1	$99.69	-89.8%	$5.1M
Izzy Englander (Millennium Mgmt)	2016Q1	$100.12	-89.8%	$2.8M
Izzy Englander (Millennium Mgmt)	2016Q1	$100.12	-89.8%	$2.8M
Paul Tudor Jones (Tudor Investment)	2016Q1	$101.43	-90.0%	$41K
Paul Tudor Jones (Tudor Investment)	2016Q1	$101.43	-90.0%	$41K
Paul Tudor Jones (Tudor Investment)	2016Q1	$101.43	-90.0%	$41K
Jeremy Grantham (GMO)	2025Q4	$101.56	-90.0%	$2.2M
Norges Bank (Norway SWF)	2016Q1	$784.57	-98.7%	$34.9M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions6

Norges Bank (Norway SWF)
+3,430,733
$348.4M
Paul Tudor Jones (Tudor Investment)
+1,978,628
$200.9M
George Soros (Soros Fund Mgmt)
+864,009
$87.7M
Jeremy Grantham (GMO)
+217,755
$22.1M
Steve Cohen (Point72)
+180,575
$18.3M
Mario Gabelli (GAMCO)
+22,000
$2.2M

Added to4

Izzy Englander (Millennium Mgmt)
+1,224,082
$124.3M
Renaissance Technologies
+990,280
$100.6M
D.E. Shaw & Co.
+481,379
$48.9M
AQR Capital Management
+412,183
$41.9M

Trimmed5

Wellington Management
−3,890,988
$395.2M
Ken Griffin (Citadel Advisors)
−3,858,562
$391.9M
Cathie Wood (ARK Invest)
−2,186,091
$223.2M
Ron Baron (Baron Capital / BAMCO)
−1,184,503
$120.3M
T. Rowe Price
−1,554,145
$158K

Exited2

Baillie Gifford & Co
−763,356
$41.8M
Ken Fisher (Fisher Asset Mgmt)
−198,287
$10.8M

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2022Q1	18	62,420,538	$85.05B	—
2022Q2	14	59,925,052	$61.88B	-4
2022Q3	20	55,878,627	$1.82B	+6
2022Q4	20	52,016,227	$2.58B	—
2023Q1	24	45,300,753	$3.07B	+4
2023Q2	23	42,746,006	$4.01B	-1
2023Q3	22	30,366,875	$2.07B	-1
2023Q4	19	30,563,260	$2.26B	-3
2024Q1	21	41,102,169	$2.84B	+2
2024Q2	22	35,575,175	$1.50B	+1
2024Q3	19	23,377,411	$1.59B	-3
2024Q4	19	14,253,104	$800.9M	—
2025Q1	18	25,152,571	$1.09B	-1
2025Q2	17	24,885,941	$1.32B	-1
2025Q3	14	21,536,678	$1.18B	-3
2025Q4	21	17,862,270	$1.81B	+7

Who owns EXK

21 super-investors · 2025Q4

Tracked stake

17.86M

Combined value

$1.81B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New9Added5Trim7

#	Manager	Shares	Value	% of book	Last action	8Q trend
1	Izzy Englander Millennium Mgmt	3.44M	$350M	0.1%	Added+1.22M
2	Norges Bank Norway SWF	3.43M	$348M	0.0%	New+3.43M
3	AQR Capital Management	2.23M	$226M	0.1%	Added+412.2K
4	Paul Tudor Jones Tudor Investment	1.98M	$201M	0.4%	New+1.98M
5	Renaissance Technologies	1.59M	$162M	0.3%	Added+990.3K
6	Wellington Management	1.43M	$146M	0.0%	Trim−3.89M
7	Ron Baron Baron Capital / BAMCO	954.5K	$97M	0.3%	Trim−1.18M
8	George Soros Soros Fund Mgmt	864.0K	$88M	1.0%	New+864.0K
9	D.E. Shaw & Co.	502.1K	$51M	0.0%	Added+481.4K
10	Izzy Englander Millennium Mgmt	278.6K	$28M	0.0%	Added+1.22M
11	Ken Griffin Citadel Advisors	277.1K	$28M	0.0%	Trim−3.86M
12	Jeremy Grantham GMO	217.8K	$22M	0.1%	New+217.8K	—
13	Ken Griffin Citadel Advisors	193.5K	$20M	0.0%	Trim−3.86M
14	Steve Cohen Point72	180.6K	$18M	0.0%	New+180.6K
15	T. Rowe Price	168.6K	$17M	0.0%	Trim−1.55M
16	Ken Griffin Citadel Advisors	83.0K	$8M	0.0%	Trim−3.86M
17	Mario Gabelli GAMCO	22.0K	$2M	0.0%	New+22.0K
18	Paul Tudor Jones Tudor Investment	5.2K	$528K	0.0%	New+1.98M
19	Steve Cohen Point72	4.3K	$437K	0.0%	New+180.6K
20	Paul Tudor Jones Tudor Investment	4.0K	$406K	0.0%	New+1.98M
21	Cathie Wood ARK Invest	77	$8K	0.0%	Trim−2.19M

Recent moves

20 transactions

NEWPaul Tudor Jones (Tudor Investment)
+1,978,628 · 2025Q4
NEWSteve Cohen (Point72)
+180,575 · 2025Q4
NEWJeremy Grantham (GMO)
+217,755 · 2025Q4
TRIMKen Griffin (Citadel Advisors)
−3,858,562 · 2025Q4
TRIMRon Baron (Baron Capital / BAMCO)
−1,184,503 · 2025Q4
ADDD.E. Shaw & Co.
+481,379 · 2025Q4
TRIMT. Rowe Price
−1,554,145 · 2025Q4
ADDAQR Capital Management
+412,183 · 2025Q4
TRIMWellington Management
−3,890,988 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+1,224,082 · 2025Q4
NEWGeorge Soros (Soros Fund Mgmt)
+864,009 · 2025Q4
ADDRenaissance Technologies
+990,280 · 2025Q4
TRIMCathie Wood (ARK Invest)
−2,186,091 · 2025Q4
NEWNorges Bank (Norway SWF)
+3,430,733 · 2025Q4
SOLDKen Fisher (Fisher Asset Mgmt)
−198,287 · 2025Q4
NEWMario Gabelli (GAMCO)
+22,000 · 2025Q4
SOLDBaillie Gifford & Co
−763,356 · 2025Q4
SOLDPaul Tudor Jones (Tudor Investment)
−48,060 · 2025Q3
ADDIzzy Englander (Millennium Mgmt)
+15,791 · 2025Q3
TRIMD.E. Shaw & Co.
−48,231 · 2025Q3

Embed this chart

Paste this iframe anywhere to embed the live EXK chart.

<iframe src="https://openstocks.me/embed/stocks/EXK" width="100%" height="480" frameborder="0" loading="lazy" title="EXK chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>

Preview: https://openstocks.me/embed/stocks/EXK

Explore related topics