Parabilis Medicines PBLS Institutional Ownership

NASDAQ PBLS

$28.70 +0.53 (+1.88%)

At close: Oct 29, 2026 · 4:00 PM EDT

Institutions by Trading Activity

79 Institutions

Increased 79 100.0%

Unchanged 0 0.0%

Reduced 0 0.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

81.16%

Shares Held by Institutions

98.97Mn

of 121.94Mn outstanding

■0.00% QoQ

Shares Outstanding

121.94Mn

22.97Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

Net Shares Added (QoQ)

+98.97Mn

accumulated since last quarter

Value of Holdings

$2.84Bn

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 10, 2026

Parabilis Medicines, Inc. (NASDAQ:PBLS) had 79 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

At the end of Q2 2026, these holders held 81.16% of Parabilis Medicines' outstanding shares.
The aggregate institutional position in Parabilis Medicines was 98.97Mn shares at the end of Q2 2026.
Ra Capital Management, L.P. led 13F holders of PBLS with 28.93Mn shares as of June 30, 2026, or 23.73% of shares outstanding.
According to Business Quant data, the leading holders of PBLS for Q2 2026 were Ra Capital Management, L.P. (28.93Mn shares), FMR LLC (10.29Mn shares), ARCH Venture Management, LLC (6.41Mn shares), venBio Partners LLC (5.27Mn shares), Alphabet Inc. (4.92Mn shares), Nextech Invest Ltd. (4.66Mn shares), Cormorant Asset Management, LP (4.62Mn shares), Regeneron Pharmaceuticals, Inc. (4.17Mn shares), Siren, L.L.C. (2.99Mn shares) and Farallon Capital Management, L.L.C. (2.37Mn shares).

Form 13F Holdings

79 Institutional Holders

Report period 30 Jun, 2026

Total shares held 98.97Mn

Of outstanding 81.16%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	RA CAPITAL MANAGEMENT, L.P.	0001346824	28,933,371	23.73%	▲28,933,371	0.00%	$791.91Mn
2	FMR LLC	0000315066	10,292,735	8.44%	▲10,292,735	0.00%	$281.71Mn
3	ARCH Venture Management, LLC	0001274403	6,412,780	5.26%	▲6,412,780	0.00%	$175.52Mn
4	venBio Partners LLC	0001776382	5,266,697	4.32%	▲5,266,697	0.00%	$144.15Mn
5	Alphabet Inc.	0001652044	4,919,498	4.03%	▲4,919,498	0.00%	$134.65Mn
6	Nextech Invest Ltd.	0001595430	4,663,176	3.82%	▲4,663,176	0.00%	$127.63Mn
7	Cormorant Asset Management, LP	0001583977	4,615,612	3.79%	▲4,615,612	0.00%	$126.33Mn
8	Regeneron Pharmaceuticals, Inc.	0000872589	4,166,666	3.42%	▲4,166,666	0.00%	$114.04Mn
9	Siren, L.L.C.	0002005245	2,992,259	2.45%	▲2,992,259	0.00%	$81.90Mn
10	FARALLON CAPITAL MANAGEMENT, L.L.C.	0000909661	2,368,200	1.94%	▲2,368,200	0.00%	$64.82Mn
11	Jupiter Topco LLC	0002146052	2,296,547	1.88%	▲2,296,547	0.00%	$62.71Mn
12	Frazier Life Sciences Management, L.P.	0001892134	1,920,805	1.58%	▲1,920,805	0.00%	$52.57Mn
13	DEERFIELD MANAGEMENT COMPANY, L.P.	0001009258	1,880,704	1.54%	▲1,880,704	0.00%	$51.47Mn
14	General Catalyst Group Management, LLC	0001637946	1,600,937	1.31%	▲1,600,937	0.00%	$43.82Mn
15	GENERAL ATLANTIC, L.P.	0001017645	1,538,461	1.26%	▲1,538,461	0.00%	$42.11Mn
16	Soleus Capital Management, L.P.	0001802630	1,465,070	1.20%	▲1,465,070	0.00%	$40.10Mn
17	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,302,479	1.07%	▲1,302,479	0.00%	$35.65Mn
18	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,156,962	0.95%	▲1,156,962	0.00%	$31.67Mn
19	Jpmorgan Chase & Co	0000019617	1,042,772	0.86%	▲1,042,772	0.00%	$30.44Mn
20	Foresite Capital Management VI LLC	0002013341	999,044	0.82%	▲999,044	0.00%	$27.34Mn

Showing 1 to 20 of 79 holders