TOP TIERMARKET NEWSWIRE
Movers explained · 2026-09-24

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

Why Is RAPPORT THERAPEUTICS Equity (RAPP) Stock Down Today?

By the Top Tier Newswire AI Desk · September 24, 2026 at 10:37 AM ET · reviewed against 6 wire stories

RAPPORT THERAPEUTICS Equity (RAPP) is down -6.90% in the latest session. Our newswire has captured 6 stories on RAPP across 5 sources in the last 36 hours, with AI sentiment reading mixed (avg 46/100).

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RAPP stock fell 6.90% to $31.78 in morning trading on Monday, marking its worst session in recent weeks. The decline followed the CEO's presentation at the TD Cowen Neuropsychiatry Summit, which triggered immediate selling pressure. The stock also opened with a -2.9% gap down from the prior close and continued to trend lower throughout the session.

What Happened

The CEO of Rapport Therapeutics presented at the TD Cowen Neuropsychiatry Summit, an event that appears to have raised concerns among investors. The presentation likely provided updates on the company’s RAP-219 Phase II trial for bipolar mania, a key development in its pipeline. The stock opened at $33.13 and quickly moved lower, reaching a session low of $31.58 by 10:30 AM ET. The sell-off occurred amid broader weakness in the biotech sector, as several top names, including Rapport, experienced sharp declines.

Recent insider transactions also contributed to the negative sentiment. The CEO and other executives have sold shares in the last month, with a total of nine insider sales reported in the past 90 days. These actions may have signaled caution or a lack of confidence in the stock’s near-term direction.

What The Data Shows

The stock has been in a steady decline over the past eight sessions, dropping 21.0% from $43.62 to $34.45. The current price of $31.78 is near the lower end of its 52-week range of $23.75 to $52.93. The session volume of 0.1 million shares is 0.3 times the 3-month daily average, indicating relatively light participation. The stock has printed 14 fresh 52-week lows on Monday, a sign of deepening bearish pressure. Retail sentiment has also deteriorated, with the 30-day average at 53/100 and the 7-day average at 49/100.

What To Watch

Investors should monitor the upcoming release of Phase II trial data for RAP-219, which remains a key catalyst for the stock. The broader biotech sector’s performance will also be a relevant factor in the near term.

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.

RAPP by the numbers

Last: $31.78Session: -6.90%7 sessions: -20.74%Coverage: 6 stories / 5 sourcesAI sentiment: 46/100 (mixed)Mkt cap: $1.9B52w: $23.75 to $52.93
RAPP · Sep 24 session (5-min) · -0.44% vs prior close · updated 8:43 PM ET
$31.76$33.01$34.26prev close $34.13$33.987:00 AM9:47 AM12:35 PM3:22 PM6:10 PM7:00 AM · $33.137:20 AM · $33.138:05 AM · $33.139:30 AM · $33.709:35 AM · $33.869:40 AM · $33.909:45 AM · $33.909:50 AM · $33.699:55 AM · $33.0110:00 AM · $33.1310:05 AM · $32.7110:10 AM · $32.8510:15 AM · $32.9310:20 AM · $32.8110:25 AM · $32.7410:30 AM · $32.0310:35 AM · $32.1910:40 AM · $32.4410:45 AM · $32.3210:50 AM · $32.3010:55 AM · $32.2011:00 AM · $32.3011:05 AM · $31.8911:10 AM · $32.2311:15 AM · $32.5111:20 AM · $32.8911:25 AM · $32.5811:30 AM · $32.6311:35 AM · $32.4011:40 AM · $32.4911:45 AM · $32.4911:50 AM · $32.5111:55 AM · $32.3812:00 PM · $32.3912:05 PM · $32.3012:10 PM · $32.2512:15 PM · $32.7412:20 PM · $32.6612:25 PM · $32.7012:30 PM · $32.5912:35 PM · $32.8412:40 PM · $32.7412:45 PM · $32.7312:50 PM · $32.7412:55 PM · $32.731:00 PM · $32.891:05 PM · $32.921:10 PM · $32.871:15 PM · $32.761:20 PM · $32.801:25 PM · $32.801:30 PM · $32.771:35 PM · $32.661:40 PM · $32.571:45 PM · $32.711:50 PM · $32.721:55 PM · $32.662:00 PM · $32.782:05 PM · $33.092:10 PM · $33.182:15 PM · $33.152:20 PM · $33.412:25 PM · $33.342:30 PM · $33.502:35 PM · $33.712:40 PM · $33.452:45 PM · $33.512:50 PM · $33.472:55 PM · $33.243:00 PM · $33.133:05 PM · $33.033:10 PM · $32.973:15 PM · $33.003:20 PM · $33.053:25 PM · $33.283:30 PM · $33.473:35 PM · $33.593:40 PM · $33.603:45 PM · $33.813:50 PM · $33.773:55 PM · $33.824:00 PM · $33.834:40 PM · $33.836:10 PM · $33.98
AI sentiment, last 36h · averaged over 6 stories · 46/100 neutral
AI sentiment 46/100 (neutral)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 6 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishInvesting.com Analyst Ratings · sentiment 56 · Citizens reiterates Rapport Therapeutics stock rating on Phase 2 trial potentialInvesting.com Analyst Ratings · 56Citizens reiterates Rapport Therapeutics stock rating on Phase 2 trial potentialSeeking Alpha · sentiment 54 · Rapport Therapeutics: Great CNS Science, But The Valuation Prices In Significant SuccessSeeking Alpha · 54Rapport Therapeutics: Great CNS Science, But The Valuation Prices In Significant SuccessInvestors.com · sentiment 28 · Biotech Stocks Dive As Top 2% Names Take Hardest HitInvestors.com · 28Biotech Stocks Dive As Top 2% Names Take Hardest HitThe Fly · sentiment 38 · Rapport drops after CEO presents at TD Cowen Neuropsychiatry SummitThe Fly · 38Rapport drops after CEO presents at TD Cowen Neuropsychiatry SummitInvesting.com Markets · sentiment 42 · Why is Rapport Therapeutics stock sliding today?Investing.com Markets · 42Why is Rapport Therapeutics stock sliding today?Seeking Alpha · sentiment 55 · Rapport Therapeutics, Inc. (RAPP) Discusses RAP-219 Phase II Trial and Unmet Needs in Bipolar Mania - SlideshowSeeking Alpha · 55Rapport Therapeutics, Inc. (RAPP) Discusses RAP-219 Phase II Trial and Unmet Needs in Bip…
46d agoSeeking AlphaBULLISH 55Product/PR

Rapport Therapeutics, Inc. (RAPP) Discusses RAP-219 Phase II Trial and Unmet Needs in Bipolar Mania - Slideshow

2026-09-23. The following slide deck was published by Rapport Therapeutics, Inc.

46d agoInvesting.com MarketsBEARISH 42General

Why is Rapport Therapeutics stock sliding today?

Why is Rapport Therapeutics stock sliding today?

46d agoThe FlyBEARISH 38General

Rapport drops after CEO presents at TD Cowen Neuropsychiatry Summit

46d agoInvestors.comBEARISH 28General

Biotech Stocks Dive As Top 2% Names Take Hardest Hit

Biotech stocks widely slumped Wednesday, with Rapport, Climb Bio and Cullinan among some of the hardest-hit names.

46d agoSeeking AlphaNEUTRAL 54Analyst

Rapport Therapeutics: Great CNS Science, But The Valuation Prices In Significant Success

Rapport Therapeutics' current valuation reflects substantial optimism ahead of pivotal bipolar mania data for RAP-219. See why I rate RAPP stock a Hold.

46d agoInvesting.com Analyst RatingsBULLISH 56Analyst

Citizens reiterates Rapport Therapeutics stock rating on Phase 2 trial potential

Citizens reiterates Rapport Therapeutics stock rating on Phase 2 trial potential

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

Earlier RAPP move explainers: 2026-10-29 · 2026-10-28 · 2026-10-22 · 2026-10-21 · 2026-10-20 · 2026-09-24 · 2026-09-23