Vault-13

PHIO PHARMACEUTICALS CORP PHIO

COM NEW · Common Stock · CUSIP 71880W501

24 institutional holders +0 vs Q1 2026
647,127647.1k shares reported held*
5.6% of all shares outstanding*
$662.6kreported value*
4 new 6 added 8 reduced 4 sold out net sold ≈ $21.9k (-21.4k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 11.6m as of 2026-08-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.02.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0102030Q3 24: 7Q4 24: 12Q1 25: 12Q2 25: 12Q3 25: 11Q4 25: 17Q1 26: 24Q2 26: 2424Q3 24Q1 25Q3 25Q1 26Q2 26
Numbers
QuarterHolders
Q3 20247
Q4 202412
Q1 202512
Q2 202512
Q3 202511
Q4 202517
Q1 202624
Q2 202624

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q4 24: 8 bought or addedQ4 24: 2 cut or sold outQ4 24Q1 25: 7 bought or addedQ1 25: 6 cut or sold outQ2 25: 7 bought or addedQ2 25: 5 cut or sold outQ2 25Q3 25: 7 bought or addedQ3 25: 4 cut or sold outQ4 25: 13 bought or addedQ4 25: 2 cut or sold outQ4 25Q1 26: 17 bought or addedQ1 26: 6 cut or sold outQ2 26: 10 bought or addedQ2 26: 12 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q4 202482
Q1 202576
Q2 202575
Q3 202574
Q4 2025132
Q1 2026176
Q2 20261012

Biggest buyers

NOMURA ASSET MANAGEMENT INTERNATIONAL INC. New +50,000+50.0k
CITADEL ADVISORS LLC New +47,150+47.1k
VANGUARD CAPITAL MANAGEMENT LLC Added +14,409+14.4k
BRIDGEWAY CAPITAL MANAGEMENT, LLC New +12,000+12.0k
CITIGROUP INC Added +10,580+10.6k
NORTHERN TRUST CORP Added +4,010+4.0k
Cetera Investment Advisers Added +2,500+2.5k
BARCLAYS PLC New +231+231
SBI Securities Co., Ltd. Added +23+23
Caitong International Asset Management Co., Ltd Added +3+3

Biggest sellers

GEODE CAPITAL MANAGEMENT, LLC Reduced -32,680-32.7k
Scientech Research LLC Sold out -30,032-30.0k
UBS Group AG Reduced -21,600-21.6k
HRT FINANCIAL LP Reduced -21,550-21.6k
GSA CAPITAL PARTNERS LLP Sold out -19,864-19.9k
TWO SIGMA SECURITIES, LLC Sold out -15,224-15.2k
TWO SIGMA INVESTMENTS, LP Reduced -10,994-11.0k
XTX Topco Ltd Reduced -6,393-6.4k
JANE STREET GROUP, LLC Reduced -1,434-1.4k
Tower Research Capital LLC (TRC) Reduced -1,414-1.4k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
CVI Investments, Inc. 13G · passive investor no change · filed 2026-02-17 9.9% no change 1.2m≈ $1.2m 2026-02-17
INTRACOASTAL CAPITAL, LLC 13G · passive investor +2.1 pts · filed 2026-02-13 9.1% +2.1 pts 1.1m≈ $1.2m 2026-02-13

Fell to 5% or below in the last year: Orca Capital AG (4.9%, 2025-12-11)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 2 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 1 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 1 buyingQ2 26: 0 sellingQ3 26: 3 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20252$27.0k0——
Q3 20250—0——
Q4 20251$22.3k0——
Q1 20260—0——
Q2 20261$9.9k0——
Q3 20263$59.0k0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-09-29 Plott Ronald Todd Director Bought 5,000 $1.04 $5.2k5.0k shares +14%
2026-09-28 Plott Ronald Todd Director Bought 5,000 $1.03 $5.2k5.0k shares +16%
2026-09-24 BRADFORD PATRICIA A Director Bought 6,500 $1.01 $6.6k6.5k shares +11%
2026-09-22 Bitterman Robert J Chairman, Pres. & CEO, director Bought 2,000 $1.03 $2.1k2.0k shares +1%
2026-09-15 BRADFORD PATRICIA A Director Bought 12,000 $1.03 $12.4k12.0k shares +26%
2026-08-19 Plott Ronald Todd Director Bought 15,000 $1.14 $17.1k15.0k shares new
2026-08-18 Bitterman Robert J Chairman, Pres. & CEO, director Bought 10,000 $1.06 $10.6k10.0k shares +2%
2026-06-26 Bitterman Robert J Chairman, Pres. & CEO, director Bought 10,000 $0.99 $9.9k10.0k shares +2%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 117,755117.8k $120.7k $120.7k 0.00% Reduced -1.4k -1,434
2 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 114,574114.6k $117.4k $117.4k 0.00% Reduced -32.7k -32,680
3 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 94,26294.3k $96.6k $96.6k 0.00% Added +14.4k +14,409
4 NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.00% of their portfolio PHILADELPHIA, PA 50,00050.0k $51.0k $51.0k 0.00% New
5 Cetera Investment Advisers 0.00% of their portfolio SCHAUMBURG, IL 47,50047.5k $48.7k $48.7k 0.00% Added +2.5k +2,500
6 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 47,15047.1k $48.3k $48.3k 0.00% New
7 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 38,16938.2k $39.1k $39.1k 0.00% Unchanged
8 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 27,76827.8k $28.5k $28.5k 0.00% Added +4.0k +4,010
9 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 21,50121.5k $22.0k $22.0k 0.00% Reduced -11.0k -10,994
10 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 18,47518.5k $18.9k $18.9k 0.00% Reduced -6.4k -6,393
11 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 13,18213.2k $13.0k $13.0k 0.00% Reduced -21.6k -21,550
12 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 12,00012.0k $12.3k $12.3k 0.00% New
13 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 11,60511.6k $11.9k $11.9k 0.00% Added +10.6k +10,580
14 CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio RALEIGH, NC 10,00010.0k $10.2k $10.2k 0.00% Unchanged
15 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 6,2066.2k $6.4k $6.4k 0.00% Reduced -1.4k -1,414
16 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 6,0006.0k $6.2k $6.2k 0.00% Unchanged
17 UBS Group AG 0.00% of their portfolio ZURICH, V8 5,3875.4k $5.5k $5.5k 0.00% Reduced -21.6k -21,600
18 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 2,0002.0k $2.1k $2.1k 0.00% Unchanged
19 Spire Wealth Management 0.00% of their portfolio MCLEAN, VA 1,9902.0k $2.0k $2.0k 0.00% Reduced -10 -10
20 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1,2471.2k $1.3k $1.3k 0.00% Added +23 +23
21 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 231231 $237 $237 0.00% New
22 ASSETMARK, INC 0.00% of their portfolio CONCORD, CA 110110 $113 $113 0.00% Unchanged
23 Activest Wealth Management 0.00% of their portfolio AVENTURA, FL 99 $9 $9 0.00% Unchanged
24 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 66 $6 $6 0.00% Added +3 +3