TOP TIERMARKET NEWSWIRE
Movers explained · September 24, 2026

Why Is KNIFE RIV CORP (KNF) Stock Moving Today?

By the Top Tier Newswire AI Desk · September 24, 2026 at 10:01 AM ET · reviewed against 16 wire stories

KNIFE RIV CORP (KNF) is drawing unusual attention today. Our newswire has captured 16 stories on KNF across 10 sources in the last 36 hours, with AI sentiment reading mixed (avg 50/100).

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KNF stock is up 4.99% at $54.00 as activist investor Starboard Value has reportedly built a significant stake and is pushing for strategic changes at Knife River. The stock opened with a 5.0% gap up, driven by a Wall Street Journal report that Starboard is urging the company to explore a sale or improve its margins. Oppenheimer has lowered its price target for KNF to $80 from $90, while other analysts have expressed caution or skepticism about the company’s path to profitability.

What Happened

Starboard Value delivered a letter to Knife River’s CEO and board, criticizing the company’s failure to meet promised margin improvements and arguing it has fallen behind peers. The activist investor is calling for a strategic review and a path to achieving 22% adjusted EBITDA margins by fiscal year 2029. The Wall Street Journal reported that Starboard has taken a “significant” position in the company and is pushing for a sale or operational turnaround. This news has triggered a sharp intraday rally, with KNF reaching a session high of $54.13 shortly after the market opened.

What The Data Shows

KNF opened at $54.00, a 5.0% gap up from the previous close of $51.43. The stock has traded between $52.72 and $54.13 during the session, with a last price of $53.83. Volume so far is 0.2 million shares, or 0.3 times the 3-month daily average. The stock has also printed one fresh 52-week low and three 52-week highs on September 24. Knife River has a market cap of $3.1 billion, a P/E ratio of 22.5, and trailing twelve-month revenue growth of 12.1%. Its net margin is 4.2%, and it has a beta of 0.52.

What To Watch

The company is scheduled to hold its Q2 2026 earnings call, which may provide further insight into its strategic direction and performance. Investors should also monitor the breadth of analyst coverage and any follow-up from Starboard Value.

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.

KNF by the numbers

Coverage: 16 stories / 10 sourcesAI sentiment: 50/100 (mixed)Mkt cap: $3.1BP/E: 22.552w: $50.66 to $96.28
KNF · today's session (5-min) · +3.77% vs prior close · updated 6:44 PM ET
$51.27$52.78$54.30prev close $51.43$53.377:25 AM10:11 AM12:57 PM3:43 PM6:30 PM7:25 AM · $54.007:45 AM · $54.007:50 AM · $53.958:10 AM · $53.878:25 AM · $53.669:10 AM · $53.739:30 AM · $53.349:35 AM · $53.159:40 AM · $53.009:45 AM · $53.139:50 AM · $53.599:55 AM · $53.9910:00 AM · $53.8310:05 AM · $53.8210:10 AM · $53.9110:15 AM · $53.5610:20 AM · $53.7510:25 AM · $53.7810:30 AM · $53.0310:35 AM · $53.4210:40 AM · $53.3110:45 AM · $53.4410:50 AM · $53.6910:55 AM · $54.1311:00 AM · $54.0111:05 AM · $53.8511:10 AM · $53.5511:15 AM · $53.5111:20 AM · $53.3111:25 AM · $53.1311:30 AM · $52.8311:35 AM · $53.0211:40 AM · $52.7711:45 AM · $52.7711:50 AM · $52.6811:55 AM · $52.8412:00 PM · $52.8212:05 PM · $52.9112:10 PM · $52.8912:15 PM · $53.5412:20 PM · $53.4812:25 PM · $53.3012:30 PM · $53.1812:35 PM · $53.0712:40 PM · $53.1612:45 PM · $52.9412:50 PM · $52.9312:55 PM · $52.971:00 PM · $52.871:05 PM · $53.381:10 PM · $53.521:15 PM · $53.471:20 PM · $53.461:25 PM · $53.371:30 PM · $53.331:35 PM · $53.361:40 PM · $53.261:45 PM · $53.301:50 PM · $53.141:55 PM · $53.262:00 PM · $53.002:05 PM · $53.412:10 PM · $53.432:15 PM · $53.162:20 PM · $52.882:25 PM · $52.762:30 PM · $52.492:35 PM · $52.882:40 PM · $52.782:45 PM · $52.762:50 PM · $52.932:55 PM · $53.123:00 PM · $53.033:05 PM · $53.253:10 PM · $52.843:15 PM · $52.793:20 PM · $52.693:25 PM · $52.663:30 PM · $52.893:35 PM · $53.183:40 PM · $53.213:45 PM · $53.443:50 PM · $53.843:55 PM · $53.374:00 PM · $53.374:10 PM · $53.374:40 PM · $53.376:30 PM · $53.37
AI sentiment, last 36h · averaged over 16 stories · 50/100 neutral
AI sentiment 50/100 (neutral)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 10 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agonowSeeking Alpha · sentiment 58 · Knife River urged to explore sale by activist Starboard Value - WSJSeeking Alpha · 58Knife River urged to explore sale by activist Starboard Value - WSJStockTitan · sentiment 50 · Starboard Delivers Letter to Knife RiverStockTitan · 50Starboard Delivers Letter to Knife RiverThe Fly · sentiment 56 · Starboard calls on Knife River to evaluate strategic alternativesThe Fly · 56Starboard calls on Knife River to evaluate strategic alternativesMarketChameleon · sentiment 54 · Starboard presses Knife River (KNF) for a path to 22% adjusted EBITDA margins by FY2029 September 24, 2026MarketChameleon · 54Starboard presses Knife River (KNF) for a path to 22% adjusted EBITDA margins by FY2029 …The Fly · sentiment 34 · Knife River price target lowered to $80 from $90 at OppenheimerThe Fly · 34Knife River price target lowered to $80 from $90 at OppenheimerThe Fly · sentiment 38 · Knife River price target lowered to $97 from $107 at BofAThe Fly · 38Knife River price target lowered to $97 from $107 at BofAStockTitan · sentiment 56 · Knife River Reiterates Focus on Disciplined Execution and Shareholder Value CreationStockTitan · 56Knife River Reiterates Focus on Disciplined Execution and Shareholder Value CreationThe Fly · sentiment 54 · Knife River issues response to Starboard, says focused on executionThe Fly · 54Knife River issues response to Starboard, says focused on executionThe Motley Fool · sentiment 58 · Why Shares of Knife River Were Moving Higher TodayThe Motley Fool · 58Why Shares of Knife River Were Moving Higher TodayMorningstar · sentiment 42 · Materials Shares Fall as Bonds Riot Weighs on Metals — Materials RoundupMorningstar · 42Materials Shares Fall as Bonds Riot Weighs on Metals — Materials Roundup
52m agoMorningstarBEARISH 42General

Materials Shares Fall as Bonds Riot Weighs on Metals — Materials Roundup

Construction-materials company Knife River said it plans to engage with activist investor Starboard Value after the hedge fund took a significant stake in the company. Knife River said it had learned on Sept. 22 about Starboard's investment. The investor said in a letter Thursday morning that Knife River should evaluate strategic alternatives, as it needs to improve margins. The Bismark, N.D., company said it welcomes input from shareholders and regularly reviews all opportunities to create…

1h agoThe Motley FoolBULLISH 58General

Why Shares of Knife River Were Moving Higher Today

Starboard Value took a position in Knife River.

5h agoThe FlyNEUTRAL 54General

Knife River issues response to Starboard, says focused on execution

5h agoStockTitanBULLISH 56General

Knife River Reiterates Focus on Disciplined Execution and Shareholder Value Creation

8h agoThe FlyBEARISH 38Analyst

Knife River price target lowered to $97 from $107 at BofA

11h agoThe FlyBEARISH 34Analyst

Knife River price target lowered to $80 from $90 at Oppenheimer

11h agoMarketChameleonNEUTRAL 54General

Starboard presses Knife River (KNF) for a path to 22% adjusted EBITDA margins by FY2029 September 24, 2026

Starboard Value says it delivered a letter to Knife River’s CEO and board, criticizing the company’s failure to deliver promised margin improvement and arguing it has fallen further behind peers. The activist outlines a path to 22% adjusted EBITDA margins by FY2029 through improved aggregates pricing and meaningful cost reductions, and urges Knife River to evaluate strategic alternatives given the scarcity and strategic value of its assets.

11h agoThe FlyBULLISH 56General

Starboard calls on Knife River to evaluate strategic alternatives

11h agoStockTitanNEUTRAL 50General

Starboard Delivers Letter to Knife River

1d agoSeeking AlphaBULLISH 58General

Knife River urged to explore sale by activist Starboard Value - WSJ

Knife River rose after The Wall Street Journal said activist investor Starboard Value has built a significant stake and plans to push for a sale or an improvement in its margins.

Frequently asked questions

Why is KNF stock moving today?

KNIFE RIV CORP (KNF) is drawing unusual attention today. Our newswire has captured 16 stories on KNF across 10 sources in the last 36 hours, with AI sentiment reading mixed (avg 50/100). The most recent driver: "Materials Shares Fall as Bonds Riot Weighs on Metals — Materials Roundup" (Morningstar).

Is KNF a buy right now?

Top Tier Newswire does not give financial advice. Our AI sentiment across the last 36 hours of KNF coverage reads 50/100 over 16 stories; treat it as a research signal and do your own diligence.

How fast does this page update?

The data sections refresh continuously as the newswire lands coverage; the written analysis is published once per trading day. Pro subscribers additionally get real-time push alerts, watchlists, and the full live terminal.

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

Earlier KNF move explainers: 2026-09-24