Phio Pharmaceuticals PHIO Institutional Ownership

NASDAQ PHIO

$1.05 +0.02 (+2.42%)

As of: Sep 30, 2026 · 2:11 PM EDT

Institutions by Trading Activity

24 Institutions

Increased 10 41.7%

Unchanged 6 25.0%

Reduced 8 33.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

5.57%

▼-0.18 pp QoQ

Shares Held by Institutions

647.13K

of 11.62Mn outstanding

▲+7.44% QoQ

Shares Outstanding

11.62Mn

10.97Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

■0 vs prior quarter

Net Shares Added (QoQ)

+44.83K

accumulated since last quarter

Value of Holdings

$666.54K

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

Phio Pharmaceuticals Corp. (NASDAQ:PHIO) has 24 institutional investors that have filed 13F reports for the period ending June 2026.

These investors held 5.6% of outstanding shares in June 2026, down from 5.8% in March 2026.
They increased total shares held in PHIO by 7.44% quarter over quarter, and investors in Phio Pharmaceuticals increased 118.18% from a year ago.
During the quarter, 10 of these 24 funds increased positions in PHIO, 8 reduced exposure, and 6 held steady.
The aggregate institutional position in Phio Pharmaceuticals amounted to 647.13K shares as of June 2026, up by 44.83K shares quarter on quarter, and up 488.4K shares year over year.
As of June 30, 2026, the biggest holder of Phio Pharmaceuticals is JANE STREET GROUP, LLC at 117.76K shares, representing 1.01% of shares outstanding.
The biggest buyers of Phio Pharmaceuticals for the quarter ending June 2026 included NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (50.0K), CITADEL ADVISORS LLC (47.15K), VANGUARD CAPITAL MANAGEMENT LLC (14.41K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (12.0K), Citigroup Inc (10.58K).
The biggest sellers of Phio Pharmaceuticals for the quarter ending June 2026 included GEODE CAPITAL MANAGEMENT, LLC (32.68K), UBS Group AG (21.6K), HRT FINANCIAL LP (21.55K), TWO SIGMA INVESTMENTS, LP (10.99K), XTX Topco Ltd (6.39K).
According to Business Quant data, leading holders of PHIO for June 2026 are JANE STREET GROUP, LLC (117.76K), GEODE CAPITAL MANAGEMENT, LLC (114.57K), VANGUARD CAPITAL MANAGEMENT LLC (94.26K), NOMURA ASSET MANAGEMENT INTERNATIONAL INC. (50.0K), Cetera Investment Advisers (47.5K), CITADEL ADVISORS LLC (47.15K), VANGUARD FIDUCIARY TRUST CO (38.17K), Northern Trust Corp (27.77K), TWO SIGMA INVESTMENTS, LP (21.5K), XTX Topco Ltd (18.48K).

Form 13F Holdings

24 Institutional Holders

Report period 30 Jun, 2026

Total shares held 647.13K

Of outstanding 5.57%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	JANE STREET GROUP, LLC	0001595888	117,755	1.01%	▼1,434	-1.20%	$120.70K
2	GEODE CAPITAL MANAGEMENT, LLC	0001214717	114,574	0.99%	▼32,680	-22.19%	$117.44K
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	94,262	0.81%	▲14,409	+18.04%	$96.62K
4	NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	0000921739	50,000	0.43%	▲50,000	0.00%	$51.00K
5	Cetera Investment Advisers	0001666741	47,500	0.41%	▲2,500	+5.56%	$48.69K
6	CITADEL ADVISORS LLC	0001423053	47,150	0.41%	▲47,150	0.00%	$48.33K
7	VANGUARD FIDUCIARY TRUST CO	0000933478	38,169	0.33%	0	0.00%	$39.12K
8	Northern Trust Corp	0000073124	27,768	0.24%	▲4,010	+16.88%	$28.46K
9	TWO SIGMA INVESTMENTS, LP	0001179392	21,501	0.19%	▼10,994	-33.83%	$22.04K
10	XTX Topco Ltd	0001828301	18,475	0.16%	▼6,393	-25.71%	$18.94K
11	HRT FINANCIAL LP	0001475597	13,182	0.11%	▼21,550	-62.05%	$13
12	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	12,000	0.10%	▲12,000	0.00%	$12.30K
13	Citigroup Inc	0000831001	11,605	0.10%	▲10,580	+1,032.20%	$11.90K
14	CAPTRUST FINANCIAL ADVISORS	0001512024	10,000	0.09%	0	0.00%	$10.25K
15	Tower Research Capital LLC (TRC)	0001533421	6,206	0.05%	▼1,414	-18.56%	$6.36K
16	Morgan Stanley	0000895421	6,000	0.05%	0	0.00%	$6.15K
17	UBS Group AG	0001610520	5,387	0.05%	▼21,600	-80.04%	$5.52K
18	OSAIC HOLDINGS, INC.	0001677044	2,000	0.02%	0	0.00%	$2.06K
19	Spire Wealth Management	0001858740	1,990	0.02%	▼10	-0.50%	$2.05K
20	SBI Securities Co., Ltd.	0001851815	1,247	0.01%	▲23	+1.88%	$1.28K

Showing 1 to 20 of 24 holders