I-Mab Ownership | Who Owns I-Mab?

I-Mab Ownership Summary

I-Mab is owned by 3.48% institutional investors, 11.20% insiders, and 85.32% retail investors. Hhlr advisors is the largest institutional shareholder, holding 3.19% of IMAB shares. abrdn Healthcare Investors is the top mutual fund, with 0.07% of its assets in I-Mab shares.

IMAB Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	I-Mab	3.48%	11.20%	85.32%
Sector	Healthcare Stocks	76.79%	9.87%	13.34%
Industry	Biotech Stocks	60.64%	9.74%	29.62%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Hhlr advisors	5.98M	3.19%	$4.93M
Stonepine capital management	483.65K	0.26%	$398.48K
Two sigma advisers, lp	430.80K	0.23%	$366.18K
Two sigma investments, lp	330.21K	0.18%	$280.68K
Edbi pte	222.14K	0.12%	$188.82K
State street	102.96K	0.12%	$171.94K
Abrdn	162.58K	0.09%	$138.19K
Invesco	57.93K	0.07%	$96.75K
Bnp paribas arbitrage, snc	109.21K	0.06%	$92.83K
Ubs group	103.05K	0.06%	$87.60K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Stonepine capital management	483.65K	0.39%	$398.48K
Edbi pte	222.14K	0.20%	$188.82K
Hhlr advisors	5.98M	0.14%	$4.93M
Two sigma advisers, lp	430.80K	0.00%	$366.18K
Two sigma investments, lp	330.21K	0.00%	$280.68K
Alberta investment management	74.72K	0.00%	$63.52K
Freestone capital	10.00K	0.00%	$8.50K
Abrdn	162.58K	0.00%	$138.19K
Bnp paribas arbitrage, snc	109.21K	0.00%	$92.83K
Hrt financial lp	13.09K	0.00%	$11.00K

Top Buyers

Holder	Shares	% Assets	Change
Stonepine capital management	483.65K	0.39%	483.65K
Bnp paribas arbitrage, snc	109.21K	0.00%	109.21K
Ubs group	103.05K	-	103.05K
Hrt financial lp	13.09K	0.00%	13.09K
Morgan stanley	13.88K	-	3.77K

Top Sellers

Holder	Shares	% Assets	Change
Caligan partners lp	-	-	-3.50M
Boothbay fund management	-	-	-1.42M
Temasek (private)	-	-	-566.65K
Gsa capital partners llp	-	-	-272.19K
Exome asset management	-	-	-271.40K

New Positions

Holder	Shares	% Assets	Change	Value
Stonepine capital management	483.65K	0.39%	483.65K	$398.48K
Bnp paribas arbitrage, snc	109.21K	0.00%	109.21K	$92.83K
Hrt financial lp	13.09K	0.00%	13.09K	$11.00K

Sold Out

Holder	Change
Frazier financial advisors	-515.00
Blackrock funding, inc. /de	-1.44K
Royal bank of canada	-1.64K
Qube research	-2.56K
Tower research capital llc (trc)	-4.01K

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	3	-89.29%	6,525,693	-45.22%	3	8.62%	1	-88.89%	1	-83.33%
Dec 31, 2024	15	-50.00%	1,162,824	-91.89%	-	2.37%	2	-77.78%	1	-83.33%
Sep 30, 2024	30	-21.05%	14,337,703	-5.30%	5	17.52%	9	12.50%	6	-62.50%
Jun 30, 2024	37	-5.13%	15,140,372	25.67%	17	8.14%	8	-46.67%	16	60.00%
Mar 31, 2024	39	-13.33%	12,048,189	-2.39%	14	5.49%	15	-28.57%	10	-28.57%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
abrdn Healthcare Investors	53.88K	0.07%	-
abrdn Healthcare Opportunities Fund	43.74K	0.05%	-
abrdn Healthcare Opportunities	43.74K	0.05%	-
abrdn World Healthcare	38.85K	0.05%	-
abrdn Life Sciences Investors	26.11K	0.03%	-
Fidelity Nasdaq Composite Index	22.04K	0.03%	-
DFA Emerging Markets Social Core Port	18.91K	0.02%	-
Dimensional Emerg Mkt Trgtd Val USD Acc	14.50K	0.02%	-
DFA Em Mkts Sustnby Cor 1 Instl	9.31K	0.01%	-
Blackstone Alternative Multi-Strategy I	8.00K	0.01%	-200.00

IMAB Ownership FAQ

Who Owns I-Mab?

I-Mab shareholders are primarily institutional investors at 3.48%, followed by 11.20% insiders and 85.32% retail investors. The average institutional ownership in I-Mab's industry, Biotech Stocks , is 60.64%, which I-Mab falls below.

Who owns the most shares of I-Mab?

I-Mab’s largest shareholders are Hhlr advisors (5.98M shares, 3.19%), Stonepine capital management (483.65K shares, 0.26%), and Two sigma advisers, lp (430.8K shares, 0.23%). Together, they hold 3.68% of I-Mab’s total shares outstanding.

Does Blackrock own I-Mab?

BlackRock is not among the top 10 institutional shareholders of I-Mab.

Who is I-Mab’s biggest shareholder by percentage of total assets invested?

Stonepine capital management is I-Mab’s biggest shareholder by percentage of total assets invested, with 0.39% of its assets in 483.65K I-Mab shares, valued at 398.48K$.

Who is the top mutual fund holder of I-Mab shares?

abrdn Healthcare Investors is the top mutual fund holder of I-Mab shares, with 0.07% of its total shares outstanding invested in 53.88K I-Mab shares.

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