SI-BONE Ownership | Who Owns SI-BONE?

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SI-BONE Ownership Summary

SI-BONE is owned by 95.44% institutional investors, 3.03% insiders, and 1.53% retail investors. Blackrock is the largest institutional shareholder, holding 9.31% of SIBN shares. Worldwide Healthcare Ord is the top mutual fund, with 5.33% of its assets in SI-BONE shares.

SIBN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	SI-BONE	95.44%	3.03%	1.53%
Sector	Healthcare Stocks	492.67%	11.09%	-403.76%
Industry	Medical Device Stocks	52.65%	10.50%	36.85%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock	3.85M	9.31%	$49.74M
Blackrock funding, inc. /de	3.46M	8.07%	$50.86M
Brown advisory	2.91M	6.81%	$54.82M
American century companies	2.84M	6.63%	$41.78M
Orbimed advisors	2.58M	6.03%	$48.54M
Vanguard group	2.49M	5.82%	$36.65M
Champlain investment partners	2.11M	4.93%	$31.04M
First light asset management	1.75M	4.09%	$32.95M
Silvercrest asset management group	1.48M	3.46%	$27.87M
Nuveen	1.35M	3.16%	$19.91M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Kent lake capital	800.00K	4.66%	$10.34M
First light asset management	1.75M	4.27%	$32.95M
Pier capital	498.04K	1.43%	$9.37M
Orbimed advisors	2.58M	1.22%	$48.54M
Granahan investment management	1.26M	0.97%	$23.79M
Parkman healthcare partners	362.01K	0.78%	$6.81M
Bullseye asset management	105.88K	0.70%	$1.49M
Paradigm capital management inc/ny	670.53K	0.62%	$12.62M
Semanteon capital management, lp	27.68K	0.51%	$407.51K
Vela investment management	141.22K	0.51%	$2.08M

Top Buyers

Holder	Shares	% Assets	Change
American century companies	2.84M	0.02%	521.68K
Kent lake capital	800.00K	4.66%	378.69K
Impax asset management group	1.03M	0.09%	333.25K
Next century growth investors	256.35K	0.37%	256.35K
Point72 asset management	250.90K	0.01%	250.90K

Top Sellers

Holder	Shares	% Assets	Change
Orbimed advisors	2.58M	1.22%	-863.87K
Paradigm capital management inc/ny	670.53K	0.62%	-604.92K
Wellington management group llp	504.69K	0.00%	-523.55K
Harbor capital advisors	150.02K	0.17%	-423.69K
Bellevue group	540.11K	0.22%	-332.88K

New Positions

Holder	Shares	% Assets	Change	Value
Point72 asset management	250.90K	0.01%	250.90K	$4.72M
Assenagon asset management	224.00K	0.00%	224.00K	$3.30M
Algert global	203.02K	0.08%	203.02K	$3.82M
Tocqueville asset management	170.00K	0.04%	170.00K	$2.38M
Voloridge investment management	152.69K	0.01%	152.69K	$2.87M

Sold Out

Holder	Change
Twin peaks wealth advisors	-5.00
Parallel advisors	-7.00
Nelson, van denburg & campbell wealth management group	-7.00
Smartleaf asset management	-11.00
Ronald blue trust	-14.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	175	9.38%	40,835,597	0.97%	95	1.05%	92	-3.16%	57	54.05%
Mar 31, 2025	160	8.11%	40,444,754	1.58%	95	1.05%	94	14.63%	38	-15.56%
Dec 31, 2024	147	7.30%	38,430,441	-5.61%	92	0.97%	81	10.96%	45	25.00%
Sep 30, 2024	136	-5.56%	40,714,386	-0.37%	97	1.00%	72	-11.11%	36	-7.69%
Jun 30, 2024	144	-6.49%	40,865,909	0.27%	98	1.00%	81	6.58%	39	-23.53%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Worldwide Healthcare Ord	2.30M	5.33%	-
American Century U.S. Small Cap Growth	1.81M	4.24%	-251.61K
American Century Small Cap Growth Inv	1.81M	4.24%	-251.61K
Bellevue Healthcare Ord	1.37M	3.29%	1.37M
Champlain Small Company Fund, LLC	1.42M	3.28%	-4.30K
Vanguard Total Stock Mkt Idx Inv	1.27M	2.94%	-28.09K
Vanguard US Total Market Shares ETF	1.22M	2.87%	-
iShares Russell 2000 ETF	920.31K	2.13%	-
CREF Stock R1	842.36K	1.98%	-
CREF Stock R3	842.36K	1.95%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 03, 2025	DUNN JEFFREY W	-	Sell	$4.34K
Oct 02, 2025	PISETSKY MICHAEL A.	SVP, Ops & Adm/Chief Legal Ofr	Sell	$18.50K
Oct 02, 2025	PISETSKY MICHAEL A.	SVP, Ops & Adm/Chief Legal Ofr	Sell	$479.58
Oct 02, 2025	PISETSKY MICHAEL A.	SVP, Ops & Adm/Chief Legal Ofr	Sell	$25.60K
Oct 02, 2025	Maheshwari Anshul	Chief Financial Officer	Sell	$24.95K

Insider Transactions Trends

Date	Buy	Sell
2025 Q4	-	8
2025 Q3	-	22
2025 Q2	-	38
2025 Q1	-	31
2024 Q4	-	18

SIBN Ownership FAQ

Who Owns SI-BONE?

SI-BONE shareholders are primarily institutional investors at 95.44%, followed by 3.03% insiders and 1.53% retail investors. The average institutional ownership in SI-BONE's industry, Medical Device Stocks, is 52.65%, which SI-BONE exceeds.

Who owns the most shares of SI-BONE?

SI-BONE’s largest shareholders are Blackrock (3.85M shares, 9.31%), Blackrock funding, inc. /de (3.46M shares, 8.07%), and Brown advisory (2.91M shares, 6.81%). Together, they hold 24.19% of SI-BONE’s total shares outstanding.

Does Blackrock own SI-BONE?

Yes, BlackRock owns 9.31% of SI-BONE, totaling 3.85M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 49.74M$. In the last quarter, BlackRock decreased its holdings by -76.246K shares, a -1.94% change.

Who is SI-BONE’s biggest shareholder by percentage of total assets invested?

Kent lake capital is SI-BONE’s biggest shareholder by percentage of total assets invested, with 4.66% of its assets in 800K SI-BONE shares, valued at 10.34M$.

Who is the top mutual fund holder of SI-BONE shares?

Worldwide Healthcare Ord is the top mutual fund holder of SI-BONE shares, with 5.33% of its total shares outstanding invested in 2.3M SI-BONE shares.

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