Denison Mines

DNN • AMEX

Denison Mines is a uranium company in the energy sector on AMEX, led by Sheila Colman, with a market cap of $2.5B. As of Q3 2025, 56% of shares are held by 239 institutional investors, with VAN ECK ASSOCIATES CORP as the largest holder at 7.0%.

Interim Chief Executive OfficerSheila Colman

Market Cap$2.5B

Uranium

Energy

Employees64.0

Websitedenisonmines.com

Overview

Overview of institutional ownership in DNN as of Q3 2025 with a market cap of $2.5B

All Institutions

Institutions: 239
Value Held: $1.4B
Shares Held: 496.2M
Avg Position: $5.7M
Median Position: $275.0K

Hedge Funds

Hedge Funds: 33
Value Held: $296.3M
Shares Held: 107.8M
Avg Position: $9.0M
Median Position: $2.5M

Ownership Breakdown

Institutional (non-HF)

43.63%

$1.1B

Hedge Funds

12.02%

$296.3M

Retail & Other

44.35%

$1.1B

Based on market cap of $2.5B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in DNN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VAN ECK ASSOCIATES CORP ETF Provider	Jan Frederick Vaneck CEO	$172.7M 0.18% of portfolio	7.00% 62.8M shares	Q2 2021 Held for 4y 5m	$96.6B
A ALPS ADVISORS INC ETF Provider	Laton Andrew Spahr President	$148.2M 0.83% of portfolio	6.01% 53.9M shares	Q2 2022 Held for 3y 5m	$18.0B
M MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Institution	-	$144.1M 0.23% of portfolio	5.84% 52.3M shares	Q2 2024 Held for 1y 5m	$61.8B
Hood River Capital Management LLC Long Only Manager	David Gordon Swank Managing Partner	$72.2M 0.85% of portfolio	2.93% 26.2M shares	Q2 2021 Held for 4y 5m	$8.5B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$51.0M 0.04% of portfolio	2.07% 18.6M shares	Q3 2017 Held for 8y 2m	$122.08B
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	Carter Mayberry Lyons CEO	$46.8M 0.08% of portfolio	1.90% 17.0M shares	Q4 2022 Held for 2y 11m	$62.0B
L L1 Capital Pty Ltd Institution	-	$44.4M 2.80% of portfolio	1.56% 14.0M shares	Q2 2025 Held for 5 months	$1.6B
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	Carter Mayberry Lyons CEO	$37.7M 0.08% of portfolio	1.53% 13.7M shares	Q3 2025 Held for 2 months	$50.0B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$36.5M 0.00% of portfolio	1.48% 13.3M shares	Q1 2021 Held for 4y 8m	$6.69T
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	David Allen Lippe CEO	$36.2M 0.05% of portfolio	1.47% 13.2M shares	Q4 2024 Held for 11 months	$75.8B

Net Capital Flow

Institutional buying and selling activity for DNN in Q3 2025

Net Flow: +$108.2M
Buyers: 70
Sellers: 90
Total Bought: +$295.8M
Total Sold: −$187.6M
Avg Position: $5.9M

Biggest Buyers

Institution	Net Bought	Current Position
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$44.2M +16.1M shares	$46.8M 17.0M shares
L L1 Capital Pty Ltd Institution	+$43.4M +13.7M shares	$44.4M 14.0M shares
VANGUARD GROUP INC Institution	+$34.5M +12.5M shares	$36.5M 13.3M shares
VAN ECK ASSOCIATES CORP ETF Provider	+$25.7M +9.3M shares	$172.7M 62.8M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$22.2M +8.1M shares	$51.0M 18.6M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$22.0M +8.0M shares	$36.2M 13.2M shares
DAVENPORT & Co LLC RIA/Wealth	+$19.2M +7.0M shares	$19.6M 7.1M shares
J JANE STREET GROUP, LLC Institution	+$10.9M +4.0M shares	$15.6M 5.7M shares
R ROYAL BANK OF CANADA Institution	+$10.6M +3.8M shares	$26.2M 9.5M shares
MORGAN STANLEY RIA/Wealth	+$9.5M +3.4M shares	$20.6M 7.5M shares

Biggest Sellers

Institution	Net Sold	Current Position
SEGRA CAPITAL MANAGEMENT, LLC Hedge Fund•Sector	−$61.7M −33.9M shares	Sold Off 0 shares
A ALPS ADVISORS INC ETF Provider	−$16.8M −6.1M shares	$148.2M 53.9M shares
M MMCAP International Inc. SPC Institution	−$10.7M −3.9M shares	$26.1M 9.5M shares
Capital Research Global Investors RIA/Wealth	−$9.4M −3.4M shares	$22.1M 8.0M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$8.0M −4.4M shares	Sold Off 0 shares
L Lloyd Harbor Capital Management, LLC Hedge Fund•Multi-Strategy	−$6.6M −2.4M shares	$11.8M 4.3M shares
HENDERSON GROUP PLC Institution	−$5.6M −2.0M shares	$4.2M 1.5M shares
B BW Gestao de Investimentos Ltda. Institution	−$5.3M −2.9M shares	Sold Off 0 shares
Beutel, Goodman & Co Ltd. Long Only Manager	−$4.7M −1.7M shares	$11.4M 4.1M shares
T TD ASSET MANAGEMENT INC Institution	−$4.6M −1.7M shares	$20.1M 7.3M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited DNN in Q3 2025

New Positions: 28
New Value: $31.8M
Exited Positions: 24
Exited Value: $87.0M

New Positions

Institution	Position Value
Merewether Investment Management, LP Hedge Fund•Sector	$18.8M 6.8M shares
Freshford Capital Management, LLC Hedge Fund•Long/Short	$4.7M 1.7M shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	$1.8M 669.6K shares
COHEN & STEERS INC Institution	$1.6M 588.6K shares
M Massar Capital Management, LP Institution	$1.1M 399.8K shares
Aquatic Capital Management LLC Hedge Fund•Quant	$798.1K 290.2K shares
Interval Partners, LLC Hedge Fund•Long/Short	$596.2K 216.8K shares
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	$410.2K 149.1K shares
P Persistent Asset Partners Ltd Institution	$309.8K 112.5K shares
P Point72 Asia Pte. Ltd. Institution	$290.6K 105.7K shares

Exited Positions

Institution	Previous Position
SEGRA CAPITAL MANAGEMENT, LLC Hedge Fund•Sector	$61.7M 33.9M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$8.0M 4.4M shares
B BW Gestao de Investimentos Ltda. Institution	$5.3M 2.9M shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	$2.5M 1.4M shares
Arosa Capital Management LP Hedge Fund•Multi-Strategy	$2.3M 1.3M shares
FORMULA GROWTH LTD Hedge Fund•Long/Short	$1.6M 868.7K shares
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy	$1.3M 706.1K shares
VGI PARTNERS PTY Ltd Hedge Fund•Long/Short	$898.1K 493.4K shares
MANGROVE PARTNERS Hedge Fund•Multi-Strategy	$846.8K 465.3K shares
G GROUP ONE TRADING, L.P. Institution	$679.3K 373.2K shares

Options Activity

Institutions with the largest Call and Put options positions in DNN as of Q3 2025

Call Positions: 11
Call Value: $72.1M
Put Positions: 9
Put Value: $9.6M

Call Positions

Institution	Position Value
UBS Group AG Institution	$56.9M 207.0K contracts
P PEAK6 LLC Institution	$5.5M 20.1K contracts
P Parallax Volatility Advisers, LLC Hedge Fund•Vol Arbitrage	$2.3M 8.2K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$2.1M 7.6K contracts
Caption Management, LLC Hedge Fund•Long/Short	$1.3M 4.8K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$1.2M 4.5K contracts
W WOLVERINE TRADING, LLC Institution	$897.0K 3.2K contracts
J JANE STREET GROUP, LLC Institution	$841.5K 3.1K contracts
Q Quarry LP Institution	$646.3K 2.4K contracts
L Lloyd Harbor Capital Management, LLC Hedge Fund•Multi-Strategy	$275.0K 1.0K contracts

Put Positions

Institution	Position Value
WOLVERINE ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$3.3M 11.9K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$2.5M 9.0K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$2.2M 8.1K contracts
Jain Global LLC Hedge Fund•Multi-Strategy	$962.5K 3.5K contracts
W WOLVERINE TRADING, LLC Institution	$342.1K 1.2K contracts
P PEAK6 LLC Institution	$137.5K 500.0 contracts
J JANE STREET GROUP, LLC Institution	$113.6K 413.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$77.6K 282.0 contracts
BANK OF MONTREAL /CAN/ Institution	$31.4K 114.0 contracts

Most Committed Institutions

Institutions with DNN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
L Lloyd Harbor Capital Management, LLC Hedge Fund•Multi-Strategy	Timothy James Rotolo CEO	5.68% $11.8M	0.48% 4.3M shares	Q1 2023 Held for 2y 8m	$208.4M
G GeoSphere Capital Management Hedge Fund•Long/Short	Arvind Singh Sanger CIO	3.57% $4.7M	0.19% 1.7M shares	Q4 2024 Held for 11 months	$131.0M
M MMCAP International Inc. SPC Institution	-	3.47% $26.1M	1.06% 9.5M shares	Q4 2020 Held for 4y 11m	$752.3M
Azarias Capital Management, L.P. Hedge Fund•Value	Daren Clark Heitman CIO	3.18% $8.0M	0.33% 2.9M shares	Q4 2021 Held for 3y 11m	$252.5M
L L1 Capital Pty Ltd Institution	-	2.80% $44.4M	1.56% 14.0M shares	Q2 2025 Held for 5 months	$1.6B
S SOUTHPORT MANAGEMENT, L.L.C. Institution	-	1.71% $415.3K	0.02% 151.0K shares	Q1 2023 Held for 2y 8m	$24.2M
PCJ Investment Counsel Ltd. Long Only Manager	John Wyatt Ricketts President	1.57% $5.6M	0.23% 2.0M shares	Q4 2021 Held for 3y 11m	$359.5M
Freshford Capital Management, LLC Hedge Fund•Long/Short	Michael Gerard Doheny President	1.36% $4.7M	0.19% 1.7M shares	Q3 2025 Held for 2 months	$346.9M
Goehring & Rozencwajg Associates, LLC Long Only Manager	Leigh Richard Goehring Managing Partner	1.24% $10.3M	0.42% 3.8M shares	Q4 2022 Held for 2y 11m	$830.9M
D De Lisle Partners LLP Institution	-	1.02% $8.4M	0.34% 3.0M shares	Q1 2024 Held for 1y 8m	$815.6M

Hedge Fund Spotlight

Discover hedge funds investing in DNN

CITADEL ADVISORS LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerKenneth Cordele Griffin

Portfolio Value: $122.08B
Positions: 5,531
Last Reported: Q3 2025

Sector Allocation

Position in Denison Mines

Market Value: $51.0M
Shares Held: 18.6M
Portfolio Weight: 0.04%
Owned Since: 2017-Q3

Top Holding	Sector	Market Value	Weight
1 Microsoft MSFT	Software - Infrastructure Technology	$2.1B	1.68%
2 Nvidia NVDA	Semiconductors Technology	$1.8B	1.50%
3 Meta Platforms, Inc. META	Internet Content & Information Communication Services	$1.4B	1.18%