XBiotech Ownership | Who Owns XBiotech?

XBiotech Ownership Summary

XBiotech is owned by 11.20% institutional investors, 36.61% insiders, and 52.18% retail investors. Blackrock is the largest institutional shareholder, holding 3.73% of XBIT shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.04% of its assets in XBiotech shares.

XBIT Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	XBiotech	11.20%	36.61%	52.18%
Sector	Healthcare Stocks	488.17%	11.08%	-399.26%
Industry	Biotech Stocks	306.59%	11.10%	-217.69%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	1.13M	3.73%	$5.83M
Vanguard group	1.06M	3.49%	$4.21M
Geode capital management	454.53K	1.49%	$1.80M
Blackrock funding, inc. /de	373.61K	1.23%	$1.11M
Millennium management	263.52K	0.86%	$1.04M
State street	202.84K	0.67%	$1.04M
Rbf capital	200.00K	0.66%	$594.00K
Bridgeway capital management	144.63K	0.47%	$571.29K
Morgan stanley	100.55K	0.33%	$516.83K
Bank of new york mellon	91.06K	0.30%	$359.69K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Rbf capital	200.00K	0.03%	$594.00K
Bridgeway capital management	144.63K	0.01%	$571.29K
Point72 asia (singapore) pte.	13.72K	0.01%	$40.76K
Y-intercept (hong kong)	47.88K	0.00%	$142.22K
Thomasville national bank	13.35K	0.00%	$39.65K
Xtx topco	20.41K	0.00%	$60.61K
Empowered funds	59.33K	0.00%	$176.20K
Millennium management	263.52K	0.00%	$1.04M
Connor, clark & lunn investment management	48.27K	0.00%	$143.37K
Synovus financial	11.80K	0.00%	$35.03K

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	1.13M	0.00%	827.52K
Rbf capital	200.00K	0.03%	200.00K
State street	202.84K	-	146.32K
Y-intercept (hong kong)	47.88K	0.00%	47.88K
Qube research	32.22K	0.00%	32.22K

Top Sellers

Holder	Shares	% Assets	Change
Blackrock funding, inc. /de	373.61K	-	-912.16K
American century companies	25.88K	-	-75.78K
Charles schwab investment management	-	-	-67.36K
Hrt financial lp	-	-	-33.59K
Deutsche bank ag\	-	-	-30.34K

New Positions

Holder	Shares	% Assets	Change	Value
Rbf capital	200.00K	0.03%	200.00K	$594.00K
Y-intercept (hong kong)	47.88K	0.00%	47.88K	$142.22K
Qube research	32.22K	0.00%	32.22K	$95.69K
Xtx topco	20.41K	0.00%	20.41K	$60.61K
Point72 asia (singapore) pte.	13.72K	0.01%	13.72K	$40.76K

Sold Out

Holder	Change
Capital performance advisors llp	-1.00
Ifp advisors	-2.00
Smartleaf asset management	-84.00
Us bancorp \de\	-100.00
Sachetta	-100.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	51	-5.56%	3,415,938	-23.72%	11	5.19%	27	58.82%	18	-18.18%
Mar 31, 2025	54	-	4,494,575	-4.70%	14	6.15%	18	-37.93%	21	110.00%
Dec 31, 2024	34	-30.61%	3,565,665	-26.50%	11	4.62%	18	-43.75%	6	-
Sep 30, 2024	49	4.26%	4,851,469	7.42%	15	7.23%	32	-	6	-25.00%
Jun 30, 2024	47	-2.08%	4,516,464	13.05%	14	8.61%	32	23.08%	8	-20.00%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	623.36K	2.04%	-
Vanguard Total Stock Mkt Idx Inv	610.02K	2.00%	-13.33K
Vanguard Institutional Extnd Mkt Idx Tr	200.97K	0.66%	-91.58K
iShares Russell 2000 Value ETF	196.42K	0.64%	-
Fidelity Small Cap Index	195.37K	0.64%	-
Fidelity Extended Market Index	107.36K	0.35%	-280.00
Vanguard Russell 2000 ETF	99.83K	0.33%	901.00
State St Russell Sm Cap® Indx SL Cl I	90.50K	0.30%	-
EA Bridgeway Omni Small-Cap Value ETF	59.33K	0.19%	-
Schwab Small Cap Index	56.88K	0.19%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jan 03, 2024	SIMARD JOHN	Chief Executive Officer	Buy	$10.00M
Oct 18, 2021	SIMARD JOHN	Chief Executive Officer	Sell	$431.25K
Oct 15, 2021	SIMARD JOHN	Chief Executive Officer	Sell	$226.47K
Oct 13, 2021	SIMARD JOHN	Chief Executive Officer	Sell	$139.53K
Oct 12, 2021	SIMARD JOHN	Chief Executive Officer	Sell	$229.94K

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	-	-
2024 Q2	-	-
2024 Q1	1	-
2023 Q3	-	-
2023 Q2	-	-

XBIT Ownership FAQ

Who Owns XBiotech?

XBiotech shareholders are primarily institutional investors at 11.20%, followed by 36.61% insiders and 52.19% retail investors. The average institutional ownership in XBiotech's industry, Biotech Stocks , is 306.59%, which XBiotech falls below.

Who owns the most shares of XBiotech?

XBiotech’s largest shareholders are Blackrock (1.13M shares, 3.73%), Vanguard group (1.06M shares, 3.49%), and Geode capital management (454.53K shares, 1.49%). Together, they hold 8.71% of XBiotech’s total shares outstanding.

Does Blackrock own XBiotech?

Yes, BlackRock owns 3.73% of XBiotech, totaling 1.13M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 5.83M$. In the last quarter, BlackRock increased its holdings by 827.52K shares, a 269.88% change.

Who is XBiotech’s biggest shareholder by percentage of total assets invested?

Rbf capital is XBiotech’s biggest shareholder by percentage of total assets invested, with 0.03% of its assets in 200K XBiotech shares, valued at 594K$.

Who is the top mutual fund holder of XBiotech shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of XBiotech shares, with 2.04% of its total shares outstanding invested in 623.36K XBiotech shares.

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