Biodesix

BDSX · NASDAQ

$23.87+$0.47 (+2.01%)TodayMarket closed · Oct 20, 7:30 PM ET

Prev close $23.40

Who owns BDSX

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 65.2% of BDSX’s shares.

Schuler (Jack W)22.3%
Kennedy (Lawrence T Jr.)12.3%
Soleus Capital Management, L.P.5.7%
AIGH Capital Management, LLC.5.0%
Next 6 largest institutions20.0%
All other shareholders34.8%

Top institutional holders of BDSX
Holder	Shares	% of shares	Change, last filing	Filed
Schuler (Jack W)	2.31M	22.33%	+0	Mar 4, 2026
Kennedy (Lawrence T Jr.)	1.27M	12.28%	−1	Mar 4, 2026
Soleus Capital Management, L.P.	585.96K	5.66%	+169.36K	Jun 30, 2026
AIGH Capital Management, LLC.	513.42K	4.96%	−39.30K	Jun 30, 2026
Telemark Asset Management, LLC	489.82K	4.73%	+0	Jun 30, 2026
abrdn Inc.	388.64K	3.75%	−69.80K	Jun 30, 2026
Patience (John)	377.18K	3.64%	+1.36K	Jun 30, 2026
Birchview Capital, LP	286.80K	2.77%	+0	Jun 30, 2026
Vanguard Capital Management, LLC	284.17K	2.74%	+29.01K	Jun 30, 2026
Essex Investment Management Company, LLC	241.91K	2.34%	+109.83K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of BDSX
Holder	Shares	% of shares	Change, last filing	Filed
abrdn Healthcare Opportunities Fund	458.44K	4.43%	+196.01K	Mar 31, 2026
Vanguard Total Stock Market Index Fund	204.10K	1.97%	+0	Jul 31, 2026
Vanguard Extended Market Index Fund	72.03K	0.70%	+0	Jul 31, 2026
1290 Essex Small Cap Growth Fund	58.95K	0.57%	+0	Jul 31, 2026
Fidelity Extended Market Index Fund	30.09K	0.29%	−1.90K	Jul 31, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders bought $1.03M (3 trades) of BDSX on the open market, with no sales.

Latest BDSX insider transactions
Insider	Date	Type	Shares	Price	Value
PATIENCE JOHN	Sep 30, 2026	Option exercise	1.36K	—	—
PATIENCE JOHN	Sep 30, 2026	Option exercise	1.36K	—	—
SCHULER JACK W	Aug 12, 2026	Buy	15.00K	$24.47	$366.99K
SCHULER JACK W	Aug 11, 2026	Buy	13.70K	$24.01	$328.91K
SCHULER JACK W	Aug 10, 2026	Buy	13.90K	$24.25	$337.03K
PATIENCE JOHN	Jun 30, 2026	Option exercise	1.36K	—	—
PATIENCE JOHN	Jun 30, 2026	Option exercise	1.36K	—	—

Short interest

Settled Sep 30, 2026

Shares short: 201.85K
Days to cover: 1.84
% of shares outstanding: 1.95%
Average daily volume: 109.84K
Change since last report: −5.7%

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