Biodesix Ownership | Who Owns Biodesix?

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Biodesix Ownership Summary

Biodesix is owned by 24.28% institutional investors, 52.13% insiders, and 23.58% retail investors. Birchview capital, lp is the largest institutional shareholder, holding 3.91% of BDSX shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 1.53% of its assets in Biodesix shares.

BDSX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Biodesix	24.28%	52.13%	23.58%
Sector	Healthcare Stocks	41.87%	10.80%	47.33%
Industry	Diagnostics & Research Stocks	45.79%	10.58%	43.63%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Birchview capital, lp	286.80K	3.91%	$2.17M
Susquehanna group, llp	1.12M	0.76%	$1.71M
Balyasny asset management	859.52K	0.59%	$242.56K
Amh equity	651.87K	0.45%	$997.36K
Blackrock	415.91K	0.43%	$636.34K
Millennium management	198.67K	0.14%	$303.97K
Goldman sachs group	118.03K	0.08%	$180.59K
Allworth financial lp	99.33K	0.07%	$28.03K
Cvi	38.53K	0.04%	$58.96K
Cibc private wealth group	29.34K	0.02%	$8.28K

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Birchview capital, lp	286.80K	1.63%	$2.17M
Amh equity	651.87K	0.98%	$997.36K
Cvi	38.53K	0.05%	$58.96K
Balyasny asset management	859.52K	0.00%	$242.56K
Susquehanna group, llp	1.12M	0.00%	$1.71M
Allworth financial lp	99.33K	0.00%	$28.03K
Millennium management	198.67K	0.00%	$303.97K
Essex investment management	-	-	-
Prudential financial	-	-	-
Geode capital management	-	-	-

Top Buyers

Holder	Shares	% Assets	Change
Susquehanna group, llp	1.12M	0.00%	987.48K
Balyasny asset management	859.52K	0.00%	859.52K
Goldman sachs group	118.03K	-	118.03K
Cvi	38.53K	0.05%	38.53K
Millennium management	198.67K	0.00%	33.33K

Top Sellers

Holder	Shares	% Assets	Change
Telemark asset management	-	-	-8.28M
Bryn mawr trust	-	-	-6.10M
Birchview capital, lp	286.80K	1.63%	-5.45M
Sio capital management	-	-	-4.34M
Aigh capital management	-	-	-4.27M

New Positions

Holder	Shares	% Assets	Change	Value
Goldman sachs group	118.03K	-	118.03K	$180.59K
Cvi	38.53K	0.05%	38.53K	$58.96K

Sold Out

Holder	Change
Bnp paribas arbitrage, snc	-6.00
Ubs group	-22.00
Fmr	-27.00
Citigroup	-77.00
Macquarie group	-512.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Jun 30, 2025	40	-34.43%	35,612,550	-33.23%	24	1.83%	14	-41.67%	11	-42.11%
Mar 31, 2025	62	3.33%	53,381,434	-8.98%	36	2.27%	25	-35.90%	20	185.71%
Dec 31, 2024	60	11.11%	58,649,815	-5.74%	40	2.22%	39	50.00%	7	16.67%
Sep 30, 2024	53	12.77%	56,123,896	5.03%	38	1.27%	24	-22.58%	7	-12.50%
Jun 30, 2024	47	11.90%	53,436,850	232.22%	54	14.33%	31	29.17%	8	-11.11%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Total Stock Mkt Idx Inv	2.25M	1.53%	-49.13K
Vanguard US Total Market Shares ETF	1.44M	0.98%	-
Vanguard Institutional Extnd Mkt Idx Tr	974.58K	0.66%	-444.09K
1290 Essex Small Cap Growth I	179.59K	0.12%	1.50K
Pleiades Small Cap Equity A	139.71K	0.10%	-
BlackRock Extended Equity Market K	131.64K	0.09%	131.64K
Extended Equity Market Fund K	127.70K	0.09%	-2.55K
Bridgeway Ultra-Small Company Market	116.31K	0.08%	-
NT Ext Equity Mkt Idx Fd - NL	84.61K	0.06%	-
NT Ext Equity Mkt Idx Fd - L	83.02K	0.06%	-

Recent Insider Transactions

Date	Name	Role	Activity	Value
Nov 10, 2025	Vazquez Chris	Chief Accounting Officer	Sell	$99.06
Nov 10, 2025	Pestano Gary Anthony	Chief Development Officer	Sell	$175.26
Nov 10, 2025	O'Kane Kieran	Chief Commercial Officer	Sell	$190.50
Nov 10, 2025	Hutton Scott	President & CEO	Sell	$1.44K
Nov 10, 2025	Cowie Robin Harper	CFO, Sec'y & Treasurer	Sell	$381.00

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	4	5
2025 Q2	2	10
2025 Q1	-	5
2024 Q4	10	10
2024 Q3	-	10

BDSX Ownership FAQ

Who Owns Biodesix?

Biodesix shareholders are primarily institutional investors at 24.28%, followed by 52.13% insiders and 23.59% retail investors. The average institutional ownership in Biodesix's industry, Diagnostics & Research Stocks, is 45.79%, which Biodesix falls below.

Who owns the most shares of Biodesix?

Biodesix’s largest shareholders are Birchview capital, lp (286.8K shares, 3.91%), Susquehanna group, llp (1.12M shares, 0.76%), and Balyasny asset management (859.52K shares, 0.59%). Together, they hold 5.26% of Biodesix’s total shares outstanding.

Does Blackrock own Biodesix?

Yes, BlackRock owns 0.43% of Biodesix, totaling 415.91K shares as of Jun 2024. This represents 0% of BlackRock's total assets, with a market value of 636.34K$. In the last quarter, BlackRock increased its holdings by 13K shares, a 3.23% change.

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

Birchview capital, lp is Biodesix’s biggest shareholder by percentage of total assets invested, with 1.63% of its assets in 286.8K Biodesix shares, valued at 2.17M$.

Who is the top mutual fund holder of Biodesix shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Biodesix shares, with 1.53% of its total shares outstanding invested in 2.25M Biodesix shares.

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