TOP TIERMARKET NEWSWIRE
Movers explained · 2026-09-29

Archived explainer. For the current picture see today's REPL page.

Why Is REPLIMUNE GROUP INC (REPL) Stock Up Today?

By the Top Tier Newswire AI Desk · September 29, 2026 at 12:22 PM ET · reviewed against 4 wire stories

REPLIMUNE GROUP INC (REPL) is up +6.37% in the latest session. Our newswire has captured 4 stories on REPL across 1 source in the last 36 hours, with AI sentiment reading bearish (avg 40/100).

Public view, delayed 4h. Every headline, price and sentiment read below — and this write-up itself — reaches Pro subscribers live. Public readers see it once it clears the delay.

REPLIMUNE GROUP INC stock rose 6.37% to $13.36 in morning trading on Sept. 29, 2026, driven by a surge in investor interest amid multiple class action alerts and a recent capital-raising effort. The stock opened at $12.59 and climbed to an intraday high of $13.39 before settling near the high at $13.36. The move occurred as four separate class action notices were issued within 36 hours, each urging shareholders to consider legal action.

What Happened

Four law firms issued class action alerts on behalf of Replimune Group, Inc. investors within a 36-hour period. The Portnoy Law Firm, Bronstein, Gewirtz & Grossman LLC, the Law Offices of Frank R. Cruz, and Levi & Korsinsky each announced separate lawsuits alleging investor harm and urging shareholders to evaluate their options. These alerts typically increase short-term trading activity as investors assess their legal exposure and potential for recovery. The Portnoy Law Firm set a lead plaintiff deadline of October 5, 2026, while others referenced similar claims. The timing of these alerts coincided with a broader period of market volatility and increased attention to the company's capital-raising moves.

What The Data Shows

The stock traded on a volume of 1.1 million shares, or 0.2 times the 3-month daily average, indicating elevated but not extreme liquidity. The price trend over the last 8 sessions showed a decline of 5.2% from $13.17 to $12.49, making the current rise notable against a recent downward trend. The stock closed at $13.36, just below its 52-week high of $16.33 and well above its 52-week low of $1.50. On the same day, the stock also printed one fresh 52-week low and 17 fresh 52-week highs, reflecting mixed retail and institutional sentiment. Recent insider transactions included five sales totaling $1.0 million, with the most recent occurring on August 19. The CEO and CFO both sold shares in early August.

What To Watch

Investors should monitor the lead plaintiff deadline of October 5, 2026, and any developments in the class action lawsuits. Additionally, coverage breadth and further capital-raising activity will be key indicators of the company’s near-term direction.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

REPL by the numbers

Last: $13.36Session: +6.37%7 sessions: +0.23%Coverage: 4 stories / 1 sourcesAI sentiment: 40/100 (bearish)Mkt cap: $1.2B52w: $1.50 to $16.33
REPL · today's session (5-min) · +3.50% vs prior close · updated 4:53 PM ET
$12.42$12.94$13.46prev close $12.56$13.007:05 AM9:27 AM11:50 AM2:12 PM4:35 PM7:05 AM · $12.598:10 AM · $12.508:30 AM · $12.609:25 AM · $12.489:30 AM · $12.529:35 AM · $12.859:40 AM · $12.799:45 AM · $12.889:50 AM · $12.869:55 AM · $12.7710:00 AM · $12.7710:05 AM · $12.6210:10 AM · $12.7110:15 AM · $12.6110:20 AM · $12.6610:25 AM · $12.5810:30 AM · $12.5810:35 AM · $12.6010:40 AM · $12.6210:45 AM · $12.7710:50 AM · $12.9010:55 AM · $12.9111:00 AM · $12.8111:05 AM · $12.8411:10 AM · $12.8211:15 AM · $12.8311:20 AM · $12.8111:25 AM · $12.8611:30 AM · $12.8811:35 AM · $12.9411:40 AM · $12.9211:45 AM · $13.1511:50 AM · $13.0911:55 AM · $13.2612:00 PM · $13.2412:05 PM · $13.1712:10 PM · $13.2212:15 PM · $13.3512:20 PM · $13.3612:25 PM · $13.3112:30 PM · $13.4012:35 PM · $13.3912:40 PM · $13.3012:45 PM · $13.3112:50 PM · $13.2112:55 PM · $13.061:00 PM · $13.111:05 PM · $13.091:10 PM · $13.111:15 PM · $13.141:20 PM · $13.231:25 PM · $13.261:30 PM · $13.071:35 PM · $13.141:40 PM · $13.231:45 PM · $13.181:50 PM · $13.231:55 PM · $13.262:00 PM · $13.302:05 PM · $13.252:10 PM · $13.322:15 PM · $13.332:20 PM · $13.302:25 PM · $13.332:30 PM · $13.282:35 PM · $13.302:40 PM · $13.232:45 PM · $13.212:50 PM · $13.242:55 PM · $13.263:00 PM · $13.273:05 PM · $13.263:10 PM · $13.293:15 PM · $13.323:20 PM · $13.333:25 PM · $13.283:30 PM · $13.213:35 PM · $13.243:40 PM · $13.163:45 PM · $13.163:50 PM · $13.043:55 PM · $12.994:00 PM · $13.004:05 PM · $13.004:35 PM · $13.00
AI sentiment, last 36h · averaged over 4 stories · 40/100 bearish
AI sentiment 40/100 (bearish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 4 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishGlobeNewswire · sentiment 34 · REPL Investor Alert: Replimune Group, Inc. Securities Class Action Notice - Contact Levi & KorsinskyGlobeNewswire · 34REPL Investor Alert: Replimune Group, Inc. Securities Class Action Notice - Contact Levi …GlobeNewswire · sentiment 34 · Bronstein, Gewirtz & Grossman LLC Urges Replimune Group, Inc. Investors to Act: Class Action Filed Alleging Investor HarmGlobeNewswire · 34Bronstein, Gewirtz & Grossman LLC Urges Replimune Group, Inc. Investors to Act: Class Act…GlobeNewswire · sentiment 42 · Portnoy Law Firm Announces Class Action on Behalf of Replimune Group, Inc. InvestorsGlobeNewswire · 42Portnoy Law Firm Announces Class Action on Behalf of Replimune Group, Inc. InvestorsGlobeNewswire · sentiment 50 · DEADLINE ALERT for REPL, DVLT, and UWMC: The Law Offices of Frank R. Cruz Reminds Investors of Class Actions on Behalf of ShareholdersGlobeNewswire · 50DEADLINE ALERT for REPL, DVLT, and UWMC: The Law Offices of Frank R. Cruz Reminds Investo…
4h agoGlobeNewswireNEUTRAL 50General

DEADLINE ALERT for REPL, DVLT, and UWMC: The Law Offices of Frank R. Cruz Reminds Investors of Class Actions on Behalf of Shareholders

LOS ANGELES, Sept. 29, 2026 (GLOBE NEWSWIRE) -- The Law Offices of Frank R. Cruz reminds investors that class action lawsuits have been filed on behalf...

8h agoGlobeNewswireBEARISH 42General

Portnoy Law Firm Announces Class Action on Behalf of Replimune Group, Inc. Investors

LOS ANGELES, Sept. 29, 2026 (GLOBE NEWSWIRE) -- The Portnoy Law Firm advises Replimune Group, Inc., (“Replimune” or the

1d agoGlobeNewswireBEARISH 34General

Bronstein, Gewirtz & Grossman LLC Urges Replimune Group, Inc. Investors to Act: Class Action Filed Alleging Investor Harm

New class action for Replimune (REPL) urges investors to seek recovery for alleged securities fraud violations – lead plaintiff deadline of 10/5/2026...

1d agoGlobeNewswireBEARISH 34General

REPL Investor Alert: Replimune Group, Inc. Securities Class Action Notice - Contact Levi & Korsinsky

Institutional holders of Replimune Group, Inc. (NASDAQ: REPL) may wish to evaluate lead plaintiff options in a securities class action alleging the Company...

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More on REPL: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier REPL move explainers: 2026-09-29 · 2026-09-11 · 2026-09-10