Biodesix BDSX Institutional Ownership

NASDAQ BDSX

$23.87 +0.47 (+2.01%)

At close: Oct 20, 2026 · 4:00 PM EDT

Institutions by Trading Activity

44 Institutions

Increased 24 54.5%

Unchanged 7 15.9%

Reduced 13 29.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

40.56%

▲+2.36 pp QoQ

Shares Held by Institutions

4.28Mn

of 10.55Mn outstanding

▲+10.82% QoQ

Shares Outstanding

10.55Mn

6.27Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+4 vs prior quarter

Net Shares Added (QoQ)

+417.77K

accumulated since last quarter

Value of Holdings

$105.73Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Biodesix Inc (NASDAQ:BDSX) counted 44 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Their combined stake equaled 40.56% of outstanding shares in Q2 2026, up from 38.20% in Q1 2026.
Total holdings of BDSX shares rose 10.82% from Q1 2026, and the holder count rose 15.79% from Q2 2025.
Of these 44 holders, 24 added to their positions, 13 reduced their stakes and 7 left their positions unchanged.
Institutional investors held 4.28Mn shares of Biodesix in total at the end of Q2 2026, up 417.77K from the prior quarter and up 2.55Mn from a year earlier.
AIGH Capital Management LLC led 13F holders of BDSX with 678.33K shares as of June 30, 2026, or 6.43% of shares outstanding.
Among holders that already owned Biodesix, the biggest buyers in Q2 2026 were Soleus Capital Management, L.P. (+169.36K shares), Essex Investment Management Co LLC (+109.83K shares), Jane Street Group, LLC (+64.47K shares), Walleye Capital LLC (+63.61K shares) and Two Sigma Investments, LP (+41.59K shares).
On the other side, among holders that kept a position in Biodesix, the largest reductions in Q2 2026 came from AIGH Capital Management LLC (-80K shares), Aberdeen Group plc (-69.8K shares), Opaleye Management Inc. (-58.05K shares), Morgan Stanley (-32.33K shares) and Marshall Wace, LLP (-25.44K shares).
Per Business Quant, the top 10 investors in BDSX for the quarter ended June 30, 2026 were AIGH Capital Management LLC (678.33K shares), Soleus Capital Management, L.P. (585.96K shares), Telemark Asset Management, LLC (489.82K shares), Aberdeen Group plc (388.64K shares), Birchview Capital, LP (286.8K shares), Vanguard Capital Management LLC (284.17K shares), Essex Investment Management Co LLC (241.91K shares), Opaleye Management Inc. (180K shares), Marshall Wace, LLP (116.2K shares) and Perceptive Advisors LLC (108.69K shares).

Form 13F Holdings

44 Institutional Holders

Report period 30 Jun, 2026

Total shares held 4.28Mn

Of outstanding 40.56%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	AIGH Capital Management LLC	0001835943	678,328	6.43%	▼80,000	-10.55%	$15.30Mn
2	Soleus Capital Management, L.P.	0001802630	585,958	5.55%	▲169,359	+40.65%	$13.21Mn
3	Telemark Asset Management, LLC	0001420816	489,824	4.64%	0	0.00%	$11.05Mn
4	Aberdeen Group plc	0001716774	388,639	3.68%	▼69,799	-15.23%	$8.76Mn
5	Birchview Capital, LP	0001618205	286,804	2.72%	0	0.00%	$6.47Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	284,169	2.69%	▲29,008	+11.37%	$6.41Mn
7	ESSEX INVESTMENT MANAGEMENT CO LLC	0000201772	241,915	2.29%	▲109,829	+83.15%	$5.46Mn
8	Opaleye Management Inc.	0001595855	180,000	1.71%	▼58,047	-24.38%	$4.06Mn
9	MARSHALL WACE, LLP	0001318757	116,199	1.10%	▼25,437	-17.96%	$2.62Mn
10	PERCEPTIVE ADVISORS LLC	0001224962	108,694	1.03%	▲108,694	0.00%	$2.45Mn
11	JANE STREET GROUP, LLC	0001595888	91,506	0.87%	▲64,475	+238.52%	$2.06Mn
12	TWO SIGMA INVESTMENTS, LP	0001179392	86,824	0.82%	▲41,593	+91.96%	$1.96Mn
13	Walleye Capital LLC	0001758720	74,447	0.71%	▲63,607	+586.78%	$1.68Mn
14	STEMPOINT CAPITAL LP	0001952142	70,000	0.66%	▼4	-0.01%	$1.58Mn
15	GEODE CAPITAL MANAGEMENT, LLC	0001214717	67,657	0.64%	▲17,659	+35.32%	$1.53Mn
16	Trexquant Investment LP	0001633445	57,972	0.55%	▼11,629	-16.71%	$1.31Mn
17	GSA CAPITAL PARTNERS LLP	0001362033	46,989	0.45%	▲7,583	+19.24%	$1.06K
18	PERKINS CAPITAL MANAGEMENT INC	0000884300	44,618	0.42%	▼165	-0.37%	$1.01Mn
19	BlackRock, Inc.	0002012383	43,026	0.41%	▲18,560	+75.86%	$970.24K
20	BLAIR WILLIAM & CO/IL	0000902367	41,548	0.39%	▲13,965	+50.63%	$936.91K

Showing 1 to 20 of 44 holders