Kellanova Stock (NYSE: K) on Dec. 18, 2025: Mars Deal Closed, $83.50 Cash-Out, Delisting Details, and What Investors Should Know

As of December 18, 2025, “Kellanova stock” is no longer behaving like a normal public-company story—because Kellanova is no longer a normal public company.

Mars has completed its acquisition of Kellanova, ending Kellanova’s run as a standalone, publicly traded snacks giant. If you owned Kellanova (NYSE: K) heading into the merger’s close, the key headline is simple: your shares were converted into a cash right of $83.50 per share (with limited exceptions like properly exercised appraisal rights). Trading in the stock was halted, and the company initiated the formal steps to remove the shares from exchange listing and ultimately wind down ongoing SEC reporting. ^[1]

Below is what happened, why it matters, and what “forecasts” even mean when a stock has effectively been turned into a cash settlement.

What happened to Kellanova stock?

The deal is done: Mars closed the acquisition on Dec. 11

Kellanova confirmed that the merger closed on December 11, 2025, with Kellanova surviving as a wholly owned subsidiary of an acquisition entity affiliated with Mars. Mars and Kellanova had previously pointed to December 11 as the expected closing date once final regulatory approvals landed. ^[2]

The last big regulatory domino: EU approval on Dec. 8

The final clearance came from the European Commission, which approved the transaction after a deeper review tied to concerns about pricing power and retailer negotiations. Reuters reported the Commission ultimately concluded the deal would not raise competition concerns in the European Economic Area—clearing the last major hurdle ahead of the planned December 11 closing. ^[3]

The $83.50 question: what shareholders received

In Kellanova’s SEC filing describing the closing mechanics, the company stated that each share of Kellanova common stock outstanding immediately prior to the effective time (excluding certain categories like shares owned by the parties and shares subject to perfected appraisal rights) was cancelled and converted into the right to receive $83.50 per share in cash, without interest. ^[4]

The same filing also lays out what happened to typical equity awards:

Stock options were treated as fully vested and converted into a cash amount based on the spread (if any) between the exercise price and the $83.50 merger consideration.
Restricted stock units and performance stock units were generally converted into cash based on the number of underlying shares, plus accrued dividend equivalents (with the filing detailing performance treatment rules).
Deferred stock units were converted into cash rights payable under plan terms (and typically tied to tax rules like Section 409A timing). ^[5]

In other words: for most investors, the “investment” stopped being an ongoing ownership stake and became a cash settlement process.

Why Kellanova (K) stopped trading: trading halt, delisting, and SEC wind-down

Here’s the key sequence that matters for anyone still searching their brokerage app wondering why the ticker looks weird:

Trading was halted on the closing date

Kellanova’s filing states that trading of Company Common Stock on the NYSE was halted prior to the opening of trading on the closing date (Dec. 11, 2025). ^[6]

NYSE delisting began via Form 25

Kellanova reported it requested the NYSE to file a Form 25 to delist and deregister Kellanova’s common stock (and certain listed debt). The NYSE Form 25 filing identifies the securities being removed, including Kellanova common stock and specified senior notes. ^[7]

Next step: Form 15 to suspend ongoing reporting

Kellanova also said that after the Form 25 becomes effective, it intends to file Form 15 to suspend reporting obligations under the Exchange Act. That’s the standard “we are going private / no longer publicly traded” regulatory clean-up. ^[8]

Options markets also delisted K

For traders who dealt in K options: MIAX Exchange Group published a notice that Kellanova (K) options were to be de-listed effective Friday, December 12, 2025, with certain order handling details around the Dec. 11 close. ^[9]

And yes—some Kellanova debt was also headed off-exchange

Kellanova’s closing filing also notes requests related to delisting certain notes from the NYSE and the delisting/withdrawal request for a Luxembourg-listed debenture from the Luxembourg Stock Exchange. ^[10]

The last dividend: Kellanova’s December 2025 payout

One detail that matters for real humans (and their taxes) is that Kellanova declared a regular quarterly dividend of $0.58 per share for the fourth quarter, payable December 15, 2025, to shareholders of record as of December 1, 2025 (which was also the ex-dividend date). ^[11]

With the merger closing on Dec. 11 and the company no longer public, this December payment is widely being treated as the final “normal” quarterly dividend in the public-company era.

Kellanova stock forecasts on Dec. 18, 2025: why price targets became boring

Let’s talk “forecasts,” because this is where stock coverage gets… existential.

Once a cash acquisition agreement is signed and the market believes it will close, the stock price typically pins near the deal price—with a small gap reflecting:

time value of money,
residual regulatory / closing risk,
and settlement timing.

Kellanova’s own filings make clear the merger consideration was $83.50 per share in cash and that the transaction closed. That means the “forecast” for K wasn’t really about snacks, margins, or commodity costs anymore—it was about whether the deal would complete and whether shareholders would receive cash on schedule. ^[12]

That’s also why many “analyst price targets” for Kellanova effectively converged on the deal number. For example, widely used market data aggregators showed targets clustered around $83.50 and a neutral stance—because after the merger agreement, fundamental upside/downside was largely capped by the buyout terms. ^[13]

What the last public financials said (and why guidance disappeared)

Kellanova’s last stretch as a public company still included normal quarterly reporting—right up until the pending merger effectively froze forward guidance.

In its Q3 2025 results release (dated Oct. 30, 2025), Kellanova reported (among other figures):

Reported net sales of $3.260 billion for the quarter ended Sept. 27, 2025 (up slightly year over year),
Reported operating profit of $452 million,
Reported diluted EPS of $0.88 (down year over year),
and explicitly said that because of the pending merger with Mars, it would not be providing forward-looking guidance. ^[14]

That last sentence is an underrated clue to how the story shifted: the market wasn’t being asked to model 2026 earnings anymore—because public shareholders wouldn’t be around to collect them.

The bigger picture: what Mars gets, and why regulators cared

Kellanova wasn’t a small tuck-in—it was a global snacks engine with brands like Pringles, Cheez-It, Pop-Tarts, Rice Krispies Treats, RXBAR, plus international cereal brands. Mars’ announcement described the acquisition as combining two iconic portfolios under one snacking umbrella. ^[15]

The European Commission review (as summarized by Reuters) focused on classic modern food-industry concerns: whether a combined giant could gain bargaining leverage with retailers and ultimately raise prices. The Commission ultimately approved the deal, and Mars/Kellanova positioned the combination as an innovation-and-scale play rather than a price-power play. ^[16]

Mars and Kellanova also framed the combined snacking business as massive in revenue scale (Kellanova’s Dec. 8 announcement put the combined snacking business at around $36 billion in annual revenues and referenced nine billion‑dollar brands), though those are corporate estimates and, now that Mars is private, they’ll be harder for public investors to track quarter by quarter. ^[17]

Fresh “Kellanova-adjacent” news: the CEO ripple effect hits Kraft Heinz

Even after the ticker stops trading, the deal’s aftershocks can still move the sector.

This week, Reuters reported that Kraft Heinz appointed Steve Cahillane (formerly associated with Kellogg/Kellanova leadership) as its new CEO ahead of Kraft Heinz’s planned corporate split. That’s not a Kellanova stock catalyst anymore—but it is a sign that the snack-and-staples world is in full “rearrange the furniture” mode, and executives with recent breakup/M&A experience are in demand. ^[18]

Practical checklist for former K shareholders

If you held Kellanova into the close, here’s what typically matters next (none of this is spicy, but it’s the stuff that prevents headaches):

Check your brokerage corporate actions / transaction history. Your K position should be removed and replaced with cash (timing varies by broker and account type).
Watch for tax documents. The cash-out is generally treated like a sale of shares for tax purposes, while the December dividend (if you received it) is typically reported separately. (Exact treatment depends on jurisdiction and account type.)
If you held shares via a transfer agent or in certificated form, follow the official paying-agent instructions provided in transaction communications—this is where delays most often happen.
Ignore most “K price quotes” you see online after the halt. Many data vendors display stale last-trade values even after a security stops trading.

The key legal reality, per the SEC filing: after the effective time, holders ceased to have shareholder rights other than the right to receive the merger consideration. ^[19]

Bottom line for Dec. 18, 2025

Kellanova stock (NYSE: K) isn’t a “should you buy/sell?” debate anymore. It’s a completed cash acquisition.

Deal status: Closed on Dec. 11, 2025. ^[20]
Shareholder payout:$83.50 per share in cash (with limited exceptions). ^[21]
Trading status:Halted on the closing date; delisting process initiated via Form 25, with reporting suspension planned via Form 15. ^[22]
Latest dividend:$0.58 per share, paid Dec. 15, 2025, for holders of record Dec. 1, 2025. ^[23]
Forecast reality: price targets converged on the deal price because the outcome became a settlement question, not a fundamentals question. ^[24]

If you want “exposure to Kellanova brands” going forward, the weird twist is: you can’t buy it directly anymore. Those brands now live inside private Mars, so public-market exposure shifts to other publicly traded snack and packaged-food peers—but that becomes a different article, with different risks, different balance sheets, and different narratives.

Kellanova (K) Acquired by Mars: Cash Payout & Delisting News