BioAmber

BIOA • XNYS

BioAmber is a publicly traded company on XNYS, with a market cap of $461.8M. As of Q3 2025, 59% of shares are held by 92 institutional investors, with AH Capital Management, L.L.C. as the largest holder at 9.02%.

Market Cap$461.8M

Overview

Overview of institutional ownership in BIOA as of Q3 2025 with a market cap of $210.8M

All Institutions

Institutions: 92
Value Held: $125.0M
Shares Held: 21.3M
Avg Position: $1.4M
Median Position: $132.9K

Hedge Funds

Hedge Funds: 16
Value Held: $35.0M
Shares Held: 6.0M
Avg Position: $2.2M
Median Position: $550.9K

Ownership Breakdown

Institutional (non-HF)

42.68%

$90.0M

Hedge Funds

16.62%

$35.0M

Retail & Other

40.7%

$85.8M

Based on market cap of $210.8M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in BIOA as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
A AH Capital Management, L.L.C. Institution	-	$19.0M 1.36% of portfolio	9.02% 3.2M shares	Q3 2024 Held for 1y 2m	$1.4B
S Sofinnova Ventures Inc Venture Capital	James Irvin Healy Managing Partner	$13.5M 0.83% of portfolio	6.40% 2.3M shares	Q3 2024 Held for 1y 2m	$1.6B
C Cormorant Asset Management, LLC Hedge Fund•Long/Short	Bihua Chen CEO	$12.6M 0.98% of portfolio	5.97% 2.1M shares	Q3 2024 Held for 1y 2m	$1.3B
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short	Daniel Pawel Schneeberger Managing Partner	$11.1M 1.11% of portfolio	5.24% 1.9M shares	Q4 2024 Held for 11 months	$993.7M
VANGUARD GROUP INC Institution	Salim Ramji CEO	$9.7M 0.00% of portfolio	4.61% 1.7M shares	Q3 2024 Held for 1y 2m	$6.69T
T TANG CAPITAL MANAGEMENT LLC Institution	-	$9.4M 0.37% of portfolio	4.46% 1.6M shares	Q4 2024 Held for 11 months	$2.5B
B BlackRock, Inc. Institution	-	$7.5M 0.00% of portfolio	3.57% 1.3M shares	Q4 2024 Held for 11 months	$5.67T
ORBIMED ADVISORS LLC Hedge Fund•Sector	Sam Block Iii CFO	$4.7M 0.11% of portfolio	2.21% 790.9K shares	Q3 2024 Held for 1y 2m	$4.1B
Sands Capital Ventures, LLC Venture Capital	Ian W Ratcliffe Managing Partner	$4.6M 1.01% of portfolio	2.19% 786.4K shares	Q3 2024 Held for 1y 2m	$456.4M
Pivotal bioVenture Partners Investment Advisor LLC RIA/Wealth	Tiffany Catherine Mcghee CEO	$3.8M 2.22% of portfolio	1.82% 653.4K shares	Q3 2024 Held for 1y 2m	$173.0M

Net Capital Flow

Institutional buying and selling activity for BIOA in Q3 2025

Traded: +$3.7M
Buyers: 47
Sellers: 21
Total Bought: +$7.3M
Total Sold: −$3.5M
Avg Position: $1.3M

Biggest Buyers

Institution	Net Bought	Current Position
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$1.6M +270.5K shares	$1.8M 306.6K shares
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager	+$711.1K +120.9K shares	$711.1K 120.9K shares
GEODE CAPITAL MANAGEMENT LLC ETF Provider	+$642.8K +109.3K shares	$3.3M 562.7K shares
VANGUARD GROUP INC Institution	+$550.9K +93.7K shares	$9.7M 1.7M shares
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	+$417.9K +71.1K shares	$1.1M 191.4K shares
GOLDMAN SACHS GROUP INC Institution	+$381.5K +64.9K shares	$527.3K 89.7K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$315.8K +53.7K shares	$840.8K 143.0K shares
S Stonepine Capital Management, LLC Institution	+$220.4K +37.5K shares	$1.1M 188.6K shares
STATE STREET CORP Institution	+$219.1K +37.3K shares	$1.2M 198.1K shares
D D. E. Shaw & Co., Inc. Institution	+$216.9K +36.9K shares	$613.2K 104.3K shares

Biggest Sellers

Institution	Net Sold	Current Position
C CANTOR FITZGERALD, L. P. Institution	−$826.0K −200.0K shares	Sold Off 0 shares
ORBIMED ADVISORS LLC Hedge Fund•Sector	−$770.6K −131.1K shares	$4.7M 790.9K shares
JACOBS LEVY EQUITY MANAGEMENT, INC Hedge Fund•Quant	−$354.9K −60.4K shares	$1.3M 213.1K shares
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short	−$335.5K −57.1K shares	$11.1M 1.9M shares
Marshall Wace LLP Institution	−$309.2K −52.6K shares	$1.0M 174.2K shares
LEUCADIA NATIONAL CORP Institution	−$206.5K −50.0K shares	Sold Off 0 shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	−$194.1K −33.0K shares	$59.5K 10.1K shares
SPRINGBOK CAPITAL MANAGEMENT, LLC Fund of Funds	−$93.8K −15.9K shares	$218.7K 37.2K shares
S SIMPLEX TRADING, LLC Institution	−$81.6K −13.9K shares	$8.3K 1.4K shares
AMERIPRISE FINANCIAL INC Institution	−$79.8K −13.6K shares	$179.1K 30.5K shares

Entry and Exit Activity

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

New Positions: 12
New Value: $1.1M
Exited Positions: 3
Exited Value: $1.1M

New Positions

Institution	Position Value
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC Long Only Manager	$711.1K 120.9K shares
R Squared Ltd Private Equity	$153.8K 26.2K shares
OCCUDO QUANTITATIVE STRATEGIES LP Hedge Fund•Market Neutral	$113.5K 19.3K shares
Q Quadrature Capital Ltd Institution	$63.1K 10.7K shares
R Russell Investments Group, Ltd. RIA/Wealth	$26.6K 4.5K shares
SRS Capital Advisors, Inc. RIA/Wealth	$2.8K 474.0 shares
Cornerstone Planning Group LLC RIA/Wealth	$725.0 100.0 shares
Fortitude Family Office, LLC Family Office	$706.0 120.0 shares
Farther Finance Advisors, LLC RIA/Wealth	$594.0 101.0 shares
PRINCIPAL SECURITIES, INC. RIA/Wealth	$241.0 41.0 shares

Exited Positions

Institution	Previous Position
C CANTOR FITZGERALD, L. P. Institution	$826.0K 200.0K shares
LEUCADIA NATIONAL CORP Institution	$206.5K 50.0K shares
V Virtu Financial LLC Institution	$61.6K 14.9K shares

Options Activity

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

Call Positions: 1
Call Value: $65.3K
Put Positions: 2
Put Value: $888.5K

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$65.3K 111.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$751.5K 1.3K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$137.0K 233.0 contracts

Most Committed Institutions

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

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Pivotal bioVenture Partners Investment Advisor LLC RIA/Wealth	Tiffany Catherine Mcghee CEO	2.22% $3.8M	1.82% 653.4K shares	Q3 2024 Held for 1y 2m	$173.0M
A AH Capital Management, L.L.C. Institution	-	1.36% $19.0M	9.02% 3.2M shares	Q3 2024 Held for 1y 2m	$1.4B
R Redpoint Management, LLC Institution	-	1.36% $2.3M	1.07% 383.3K shares	Q3 2024 Held for 1y 2m	$166.3M
A ADAR1 Capital Management, LLC Hedge Fund•Long/Short	Daniel Pawel Schneeberger Managing Partner	1.11% $11.1M	5.24% 1.9M shares	Q4 2024 Held for 11 months	$993.7M
Sands Capital Ventures, LLC Venture Capital	Ian W Ratcliffe Managing Partner	1.01% $4.6M	2.19% 786.4K shares	Q3 2024 Held for 1y 2m	$456.4M
C Cormorant Asset Management, LLC Hedge Fund•Long/Short	Bihua Chen CEO	0.98% $12.6M	5.97% 2.1M shares	Q3 2024 Held for 1y 2m	$1.3B
S Stonepine Capital Management, LLC Institution	-	0.90% $1.1M	0.53% 188.6K shares	Q1 2025 Held for 8 months	$123.0M
S Sofinnova Ventures Inc Venture Capital	James Irvin Healy Managing Partner	0.83% $13.5M	6.40% 2.3M shares	Q3 2024 Held for 1y 2m	$1.6B
T TANG CAPITAL MANAGEMENT LLC Institution	-	0.37% $9.4M	4.46% 1.6M shares	Q4 2024 Held for 11 months	$2.5B
Militia Capital Partners, LP Hedge Fund•Long/Short	-	0.12% $237.0K	0.11% 40.3K shares	Q2 2025 Held for 5 months	$195.8M

Hedge Fund Spotlight

Discover hedge funds investing in BIOA

OCCUDO QUANTITATIVE STRATEGIES LP

Hedge Fund • Market Neutral

Portfolio ManagerRicky Xiaoxiao Shi

Portfolio Value: $821.7M
Positions: 644
Last Reported: Q3 2025

Sector Allocation

Position in BioAmber

Market Value: $113.5K
Shares Held: 19.3K
Portfolio Weight: 0.01%
Owned Since: 2025-Q3

Top Holding	Sector	Market Value	Weight
1 Lam Research LRCX	Semiconductors Technology	$9.4M	1.15%
2 Intuitive Surgical ISRG	Medical - Instruments & Supplies Healthcare	$9.4M	1.15%
3 Costco Wholesale COST	Discount Stores Consumer Defensive	$9.3M	1.14%