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PHIO

Phio Pharmaceuticals (PHIO) stock: insider trades, news & valuation

Health Care · Strong buying
Close · Oct 9, 2026 $0.98 +0.6% on the day -58.5% over 12 months 52-week range $0.86 – $2.36

Share price and insider trades

PHIO closeInsider buyInsider sale
0.501.001.502.002.50NovDecJan 2026FebMarAprMayJunJulAugSepOctBought $2,060 on 2026-09-22 · Robert J BittermanBought $5,100 on 2025-12-23 · Robert J BittermanBought $5,150 on 2026-09-28 · Ronald Todd PlottBought $5,150 on 2025-12-31 · Robert J BittermanBought $5,200 on 2026-09-29 · Ronald Todd PlottBought $5,700 on 2025-11-21 · Robert J BittermanBought $6,350 on 2025-11-18 · Robert J BittermanBought $6,565 on 2026-09-24 · Patricia A BradfordBought $9,900 on 2026-06-26 · Robert J BittermanBought $10,600 on 2026-08-18 · Robert J BittermanBought $12,360 on 2026-09-15 · Patricia A BradfordBought $17,100 on 2026-08-19 · Ronald Todd Plott
Bought, 12 months$40K
Sold, 12 months$0
Insiders buying3
Insiders selling0

Phio Pharmaceuticals insider trading at a glance (Oct 9, 2026): in the past 12 months, 3 insiders bought $40K and 0 sold $0 of PHIO stock on the open market.

PHIO insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q4 2025: $22K bought (4 trades)$22KQ4 2025Q1 2026Q2 2026: $10K bought (1 trades)$10KQ2 2026Q3 2026: $59K bought (7 trades)$59KQ3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026$59K7—0
Q2 2026$10K1—0
Q1 2026—0—0
Q4 2025$22K4—0

Valuation, profit and volume

P/E (trailing)n/aSector median 24.7
Market value$11.4MBiotechnology
Profit margin0.0%Revenue growth —
Volume vs. 50-day0.7×Last 5 sessions
Insiders' paper profit−$8KOn all tracked purchases -8.3%

Summary

Over the past 12 months, 3 Phio Pharmaceuticals Corp. insiders reported open-market purchases totaling $40K, while 0 insiders reported sales totaling $0.

PHIO stock news and SEC filings

Recent 8-K filings and headlines. Tone is scored from the headline wording; “Policy” marks regulatory, trade or government topics.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Sep 30SEC Ronald Todd PlottDirector Buy 5,00042,000 held (+14%) $1.04 $5K -5.9% —
Sep 30SEC Ronald Todd PlottDirector Buy 5,00037,000 held (+16%) $1.03 $5K -5.0% —
Sep 25SEC Patricia A BradfordDirector Buy 6,50064,151 held (+11%) $1.01 $7K -3.1% —
Sep 23SEC Robert J BittermanCEO, Chair Buy 2,000364,871 held (+1%) $1.03 $2K -5.0% —
Sep 16SEC Patricia A BradfordDirector Buy 12,00057,651 held (+26%) $1.03 $12K -5.0% —
Aug 20SEC Ronald Todd PlottDirector Buy 15,000new position $1.14 $17K -14.1% —
Aug 19SEC Robert J BittermanCEO, Chair Buy 10,000431,421 held (+2%) $1.06 $11K -7.6% —
Jun 29SEC Robert J BittermanCEO, Chair Buy 10,000421,421 held (+2%) $0.99 $10K -1.1% —
Jan 2SEC Robert J BittermanCEO, Chair Buy 5,000291,421 held (+2%) $1.03 $5K -5.0% —
Dec 29SEC Robert J BittermanCEO, Chair Buy 5,000286,421 held (+2%) $1.02 $5K -4.0% —
Nov 24SEC Robert J BittermanCEO, Chair Buy 5,000281,421 held (+2%) $1.14 $6K -14.1% —
Nov 19SEC Robert J BittermanCEO, Chair Buy 5,000276,421 held (+2%) $1.27 $6K -22.9% —

Insiders at Phio Pharmaceuticals Corp.

InsiderBoughtSoldLast filingScore
Robert J BittermanCEO, Chair $45K — Sep 23, 2026 —
Ronald Todd PlottDirector $27K — Sep 30, 2026 —
Patricia A BradfordDirector $19K — Sep 25, 2026 —

Insider activity at other Health Care companies

Same sector, ranked by insider buying in the last 90 days.

  • SLBTSL Science Holding Ltd$10329.90B bought
  • KODKodiak Sciences Inc.$157M bought
  • ADRXADARx Pharmaceuticals, Inc.$87.7M bought
  • ATTOAttovia Therapeutics, Inc.$72.9M bought
  • MPLTMapLight Therapeutics, Inc.$65.5M bought
  • AVRAnteris Technologies Global Corp.$40.4M bought

PHIO stock: common questions

Are Phio Pharmaceuticals Corp. insiders buying PHIO stock?

In the past 12 months, 3 insiders reported open-market purchases of PHIO worth $40K. The latest was Director Ronald Todd Plott bought $5K of PHIO at $1.04.

Are Phio Pharmaceuticals Corp. insiders selling PHIO stock?

0 insiders reported sales worth $0 over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is PHIO's 52-week range?

Over the past year PHIO has traded between $0.86 and $2.36. It last closed at $0.98 on Oct 9, 2026.