Adicet Bio, Inc.

ACET • NASDAQ

Adicet Bio, Inc. is a biotechnology company in the healthcare sector on NASDAQ, led by Chen Schor, with a market cap of $76.4M. As of Q3 2025, 62% of shares are held by 53 institutional investors, with ORBIMED ADVISORS LLC as the largest holder at 13.75%.

President and Chief Executive Officer at Adicet Bio, Inc.Chen Schor

Market Cap$76.4M

Biotechnology

Healthcare

Employees143.0

Websiteadicetbio.com

Country

United States of America

Overview

Overview of institutional ownership in ACET as of Q3 2025 with a market cap of $67.5M

All Institutions

Institutions: 53
Value Held: $41.6M
Shares Held: 51.3M
Avg Position: $784.7K
Median Position: $64.9K

Hedge Funds

Hedge Funds: 11
Value Held: $20.1M
Shares Held: 24.9M
Avg Position: $1.8M
Median Position: $531.2K

Ownership Breakdown

Institutional (non-HF)

31.8%

$21.5M

Hedge Funds

29.86%

$20.1M

Retail & Other

38.34%

$25.9M

Based on market cap of $67.5M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ACET as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
ORBIMED ADVISORS LLC Hedge Fund•Sector	Sam Block Iii CFO	$9.3M 0.22% of portfolio	13.75% 11.4M shares	Q3 2020 Held for 5y 2m	$4.1B
T TANG CAPITAL MANAGEMENT LLC Institution	-	$6.7M 0.26% of portfolio	9.88% 8.2M shares	Q4 2022 Held for 2y 11m	$2.5B
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	$6.1M 0.08% of portfolio	9.06% 7.5M shares	Q1 2024 Held for 1y 8m	$8.1B
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$3.0M 0.00% of portfolio	4.51% 3.8M shares	Q2 2018 Held for 7y 5m	$691.34B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$2.7M 0.00% of portfolio	3.93% 3.3M shares	Q3 2020 Held for 5y 2m	$6.69T
Carlyle Group L.P. Institution	Harvey M. Schwartz CEO	$2.4M 0.06% of portfolio	3.54% 2.9M shares	Q1 2023 Held for 2y 8m	$4.3B
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	Gillian Morna Therese Savage CEO	$1.8M 0.00% of portfolio	2.72% 2.3M shares	Q2 2023 Held for 2y 5m	$51.5B
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	Peter Fitzhugh Brown CEO	$1.5M 0.00% of portfolio	2.20% 1.8M shares	Q2 2022 Held for 3y 5m	$75.8B
REGENERON PHARMACEUTICALS, INC. Institution	Leonard S. Schleifer, M.D., Ph.D. CEO	$784.4K 0.11% of portfolio	1.16% 968.2K shares	Q4 2024 Held for 11 months	$700.4M
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager	John Noland Ryan Montgomery CEO	$730.5K 0.02% of portfolio	1.08% 901.6K shares	Q3 2023 Held for 2y 2m	$4.7B

Net Capital Flow

Institutional buying and selling activity for ACET in Q3 2025

Traded: +$161.6K
Buyers: 25
Sellers: 16
Total Bought: +$1.9M
Total Sold: −$1.8M
Avg Position: $693.2K

Biggest Buyers

Institution	Net Bought	Current Position
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$547.0K +675.1K shares	$1.5M 1.8M shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$276.9K +341.8K shares	$692.4K 854.6K shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	+$174.1K +214.9K shares	$632.8K 781.0K shares
ACADIAN ASSET MANAGEMENT LLC Long Only Manager	+$154.7K +190.9K shares	$1.8M 2.3M shares
J JANE STREET GROUP, LLC Institution	+$150.9K +186.2K shares	$150.9K 186.2K shares
BARCLAYS PLC Institution	+$121.5K +150.0K shares	$243.1K 300.0K shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$100.1K +123.5K shares	$473.1K 583.9K shares
R ROYAL BANK OF CANADA Institution	+$64.8K +80.0K shares	$64.9K 80.1K shares
V Virtu Financial LLC Institution	+$64.7K +79.9K shares	$64.7K 79.9K shares
R Rangeley Capital, LLC Hedge Fund•Event Driven	+$60.8K +75.0K shares	$60.8K 75.0K shares

Biggest Sellers

Institution	Net Sold	Current Position
Schonfeld Strategic Advisors LLC Hedge Fund•Multi-Strategy	−$1.1M −1.4M shares	$388.2K 479.1K shares
D DAFNA Capital Management LLC Hedge Fund•Event Driven	−$329.4K −540.0K shares	Sold Off 0 shares
LUMINUS MANAGEMENT LLC Hedge Fund•Sector	−$176.9K −289.9K shares	Sold Off 0 shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$21.4K −26.4K shares	$458.5K 566.0K shares
T Tower Research Capital LLC Institution	−$19.5K −24.1K shares	$4.0K 5.0K shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	−$18.3K −30.0K shares	Sold Off 0 shares
D D. E. Shaw & Co., Inc. Institution	−$13.5K −22.2K shares	Sold Off 0 shares
B BlackRock, Inc. Institution	−$11.4K −14.1K shares	$474.3K 585.4K shares
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Market Neutral	−$10.9K −17.8K shares	Sold Off 0 shares
WEALTHEDGE INVESTMENT ADVISORS, LLC RIA/Wealth	−$10.6K −13.1K shares	$243.1K 300.1K shares

Entry and Exit Activity

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

New Positions: 3
New Value: $73.1K
Exited Positions: 7
Exited Value: $549.7K

New Positions

Institution	Position Value
R Rangeley Capital, LLC Hedge Fund•Event Driven	$60.8K 75.0K shares
Mariner Wealth Advisors, LLC RIA/Wealth	$12.0K 14.9K shares
A Advisory Services Network, LLC RIA/Wealth	$256.0 316.0 shares

Exited Positions

Institution	Previous Position
D DAFNA Capital Management LLC Hedge Fund•Event Driven	$329.4K 540.0K shares
LUMINUS MANAGEMENT LLC Hedge Fund•Sector	$176.9K 289.9K shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	$18.3K 30.0K shares
D D. E. Shaw & Co., Inc. Institution	$13.5K 22.2K shares
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Hedge Fund•Market Neutral	$10.9K 17.8K shares
Riggs Asset Managment Co. Inc. RIA/Wealth	$685.0 1.1K shares
S SIMPLEX TRADING, LLC Institution	- 583.0 shares

Options Activity

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

Call Positions: 1
Call Value: -
Put Positions: 0
Put Value: -

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	- - contracts

Put Positions

Institution	Position Value
No put positions found

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
T TANG CAPITAL MANAGEMENT LLC Institution	-	0.26% $6.7M	9.88% 8.2M shares	Q4 2022 Held for 2y 11m	$2.5B
ORBIMED ADVISORS LLC Hedge Fund•Sector	Sam Block Iii CFO	0.22% $9.3M	13.75% 11.4M shares	Q3 2020 Held for 5y 2m	$4.1B
REGENERON PHARMACEUTICALS, INC. Institution	Leonard S. Schleifer, M.D., Ph.D. CEO	0.11% $784.4K	1.16% 968.2K shares	Q4 2024 Held for 11 months	$700.4M
WEALTHEDGE INVESTMENT ADVISORS, LLC RIA/Wealth	Enri Dama CIO	0.09% $243.1K	0.36% 300.1K shares	Q4 2024 Held for 11 months	$262.4M
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	0.08% $6.1M	9.06% 7.5M shares	Q1 2024 Held for 1y 8m	$8.1B
JOHNSON & JOHNSON Institution	Joaquin Duato CEO	0.06% $295.3K	0.44% 364.5K shares	Q3 2021 Held for 4y 2m	$503.7M
R Rangeley Capital, LLC Hedge Fund•Event Driven	Christopher Clay Demuth Jr. Managing Partner	0.06% $60.8K	0.09% 75.0K shares	Q3 2025 Held for 2 months	$105.5M
Carlyle Group L.P. Institution	Harvey M. Schwartz CEO	0.06% $2.4M	3.54% 2.9M shares	Q1 2023 Held for 2y 8m	$4.3B
R RBF Capital, LLC Institution	-	0.02% $500.2K	0.74% 617.3K shares	Q2 2024 Held for 1y 5m	$2.2B
B BRIDGEWAY CAPITAL MANAGEMENT INC Long Only Manager	John Noland Ryan Montgomery CEO	0.02% $730.5K	1.08% 901.6K shares	Q3 2023 Held for 2y 2m	$4.7B

Hedge Fund Spotlight

Discover hedge funds investing in ACET

Rangeley Capital, LLC

Hedge Fund • Event Driven

Portfolio ManagerChristopher Clay Demuth Jr.

Portfolio Value: $105.5M
Positions: 115
Last Reported: Q3 2025

Sector Allocation

Position in Adicet Bio, Inc.

Market Value: $60.8K
Shares Held: 75.0K
Portfolio Weight: 0.06%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Delek US Holdings DK	Oil & Gas Refining & Marketing Energy	$6.6M	6.30%
2 Calumet, Inc. CLMT	Oil & Gas Exploration & Production Energy	$6.0M	5.72%
3 Arvinas ARVN	Biotechnology Healthcare	$5.9M	5.61%