Polaryx Therapeutics PLYX Institutional Ownership

NASDAQ PLYX

$2.02 -0.05 (-2.42%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

13 Institutions

Increased 7 53.8%

Unchanged 4 30.8%

Reduced 2 15.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

4.54%

▼-0.26 pp QoQ

Shares Held by Institutions

2.19Mn

of 48.28Mn outstanding

▲+5.32% QoQ

Shares Outstanding

48.28Mn

46.09Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▼-1 vs prior quarter

Net Shares Added (QoQ)

+110.80K

accumulated since last quarter

Value of Holdings

$4.54Mn

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

Quarter ending 30 Jun, 2026

Polaryx Therapeutics, Inc. (NASDAQ:PLYX) has 13 institutional investors with active 13F positions as of June 2026.

These investors collectively held 4.5% of Polaryx Therapeutics's outstanding shares in June 2026, down from 4.8% in March 2026.
Their total shares held in PLYX increased 5.32% quarter over quarter, and separately, investors owning Polaryx Therapeutics stayed flat from a year ago.
During the quarter, 7 of these 13 funds increased positions in PLYX, 2 reduced exposure, and 4 held steady.
Institutional investors collectively held 2.19Mn shares in Polaryx Therapeutics as of June 2026, up by 110.8K shares quarter on quarter, and with no net change year over year.
As of June 30, 2026, the biggest holder of Polaryx Therapeutics is VANGUARD CAPITAL MANAGEMENT LLC at 1.66Mn shares, representing 3.43% of shares outstanding.
Leading buyers of Polaryx Therapeutics shares for the quarter ending June 2026 were HRT FINANCIAL LP (82.09K), JANE STREET GROUP, LLC (31.44K), Allworth Financial LP (7.73K), Tower Research Capital LLC (TRC) (1.22K), VANGUARD FIDUCIARY TRUST CO (516).
Leading sellers of Polaryx Therapeutics shares for the quarter ending June 2026 were UBS Group AG (12.2K), VANGUARD CAPITAL MANAGEMENT LLC (516).
According to Business Quant data, leading holders of PLYX for June 2026 are VANGUARD CAPITAL MANAGEMENT LLC (1.66Mn), GEODE CAPITAL MANAGEMENT, LLC (171.0K), VANGUARD FIDUCIARY TRUST CO (105.07K), HRT FINANCIAL LP (82.09K), State Street Corp (58.1K), BlackRock, Inc. (41.01K), JANE STREET GROUP, LLC (31.44K), Northern Trust Corp (27.99K), Allworth Financial LP (7.73K), Vanguard Global Advisers, LLC (6.32K).

Form 13F Holdings

13 Institutional Holders

Report period 30 Jun, 2026

Total shares held 2.19Mn

Of outstanding 4.54%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,657,872	3.43%	▼516	-0.03%	$4.41Mn
2	GEODE CAPITAL MANAGEMENT, LLC	0001214717	170,998	0.35%	▲325	+0.19%	$455.08K
3	VANGUARD FIDUCIARY TRUST CO	0000933478	105,072	0.22%	▲516	+0.49%	$279.49K
4	HRT FINANCIAL LP	0001475597	82,094	0.17%	▲82,094	0.00%	$218
5	State Street Corp	0000093751	58,104	0.12%	0	0.00%	$154.56K
6	BlackRock, Inc.	0002012383	41,012	0.08%	0	0.00%	$109.09K
7	JANE STREET GROUP, LLC	0001595888	31,441	0.07%	▲31,441	0.00%	$83.63K
8	Northern Trust Corp	0000073124	27,987	0.06%	0	0.00%	$74.45K
9	Allworth Financial LP	0001555170	7,727	0.02%	▲7,727	0.00%	$20.55K
10	Vanguard Global Advisers, LLC	0001811242	6,318	0.01%	0	0.00%	$16.81K
11	Tower Research Capital LLC (TRC)	0001533421	3,002	0.01%	▲1,221	+68.56%	$7.99K
12	UBS Group AG	0001610520	1,283	0.00%	▼12,196	-90.48%	$3.41K
13	Fortitude Family Office, LLC	0001950506	189	0.00%	▲189	0.00%	$503