Thank you, Megan. Good morning, and thank you for joining us for our third quarter earnings conference call.

As we begin, please note that the information provided during this call will contain forward-looking statements. Actual results or outcomes might differ materially from those expressed by those statements.

I'd like to direct all our listeners to read the cautionary note regarding forward-looking statements contained in our most recent quarterly report on Form 10-Q filed with the SEC and in our earnings release, as well as the risk factors identified in the quarterly report and our more recent periodic reports filed with the SEC. Relevant factors that could cause actual results to differ materially from any forward-looking statements are included in the earnings release and in our SEC filings, and the company does not undertake to update any of the forward-looking statements made today.

A copy of our earnings release, which contains non-GAAP financial measures, is available on our website at fibk.com. Information regarding our use of the non-GAAP financial measures may be found in the body of the earnings release, and a reconciliation to their most comparable GAAP financial measures is included at the end of the earnings release for your reference.

Again this quarter, along with our earnings release, we've published an updated investor presentation that has additional disclosures that we believe will be helpful. The presentation can be accessed on our Investor Relations website, and if you have not downloaded a copy yet, we encourage you to do so.

Please also note that as we discuss our financials today, unless otherwise noted, all of the prior period comparisons will be with the second quarter of 2026. Joining us from management this morning are Jim Reuter, our Chief Executive Officer, David Camera, our Chief Financial Officer, and other members of our management team.

Now, I'll turn the call over to Jim Reuter. Jim?

Thank you, Nancy, and thank you for joining us on our earnings call today. In the third quarter of 2026, we continued to execute against our multiyear strategic plan, further improving the long-term earnings power of the franchise.

Net interest margin expanded for the 10th consecutive quarter and non-interest-bearing deposits continued to increase, reflecting our focus on relationship growth. We maintained our disciplined approach to long-term value creation, investing in the markets where we see the greatest opportunity to deepen customer relationships and grow core deposits, while enhancing shareholder returns through additional share repurchases.

The execution of our multiyear strategy has required deliberate changes to both the composition of the balance sheet and our geographic footprint. We have exited certain non-strategic markets, initiated a long-term branch optimization program that includes both targeted expansion and consolidation, and refocused lending activities to customers that align with our relationship banking model.

Our primary objective is to protect and strengthen the quality of the deposit franchise and add new customers. As we expected, new client acquisition remained strong in the Rocky Mountain region.

New production continued to be concentrated among relationship-based clients, represented by operating deposits and associated services. Going forward, our capital, talent, and branch investments will increasingly follow markets where we have an existing franchise advantage or an attractive opportunity for relationship growth.

We believe the current expense base supports a production level that would stabilize earning asset mix when producing at capacity. While we expect our new teams to follow a typical ramp-up period, we believe the banking organization now has the capacity and market coverage required to support growth.

This improvement in our operating model strengthens one of our key differentiators, combining the relationship focus, local decision-making, and high-touch service of a profitable community bank with the sophisticated treasury, commercial banking, and wealth management solutions of a larger institution. We have seen meaningful improvement in criticized loan levels over the past 12 months, which reflects our long-term commitment to disciplined credit decision-making.

Credit was stable in the third quarter, with little change in criticized loans and a modest reduction in nonperforming assets. Effective risk management continues to be a priority for us, as strong credit discipline combined with a high-quality customer deposit foundation will support performance in all economic cycles.

We believe our low-cost deposit base, which is granular across a large number of customers and geographies, provides a competitive advantage over the long term. In the third quarter, we also continued to optimize our capital structure through prudent execution of our share repurchase program.

We repurchased approximately 2 million shares during the quarter, bringing total repurchases to approximately 10 million shares since the program began in late August 2025. Together with our dividend, repurchases are an important component of our total shareholder return.

Through ongoing fixed asset repricing, capital deployment, operating model optimization, and continued focus on relationship banking, we are building a more efficient organization. We remain confident in our ability to continue to deliver improved earnings over time.

With that, I will hand the call over to David. David?

Thanks, Jim. I'll start with our results for the quarter.

The company reported net income of $62.2 million, or 65 cents per diluted share, in the third quarter, compared to $83.9 million, or 87 cents per diluted share, in the second quarter. Net interest income increased by $4 million compared to the prior quarter, or 2%, to $206.2 million.

Yield on average loans increased 5 basis points to 5.67%, and total funding costs decreased 4 basis points compared to the second quarter. Deposit costs benefited from the exit of a large, high-cost, fully collateralized customer, where our long-term return objectives were not being met.

Excluding this balance, deposits increased during the quarter. This was a unique customer from both a size and pricing perspective.

That exit contributed an approximately 3 basis point improvement to our net interest margin in the quarter and did not have a material impact on net interest income. Our fully taxable equivalent net interest margin was 3.55% for the third quarter, compared to 3.48% during the second quarter, and 3.36% during the third quarter of 2025.

As Jim mentioned, this marks our 10th consecutive quarter of net interest margin expansion, and fixed asset repricing should remain a tailwind to earning asset yields and underlying margin improvement into 2027. Over the past few years, we have used cash flows from the investment portfolio to eliminate wholesale borrowings, and since we began reinvesting in 2025, we have targeted shorter duration, reducing the balance sheet sensitivity to changes in interest rates.

Based on our current interest rate risk modeling, the balance sheet is broadly neutral from a net interest income perspective in both the near term and over the next 12 months, while continued asset repricing and reinvestment at current market yields provides sequential support to earning asset yields. Non-interest income was $43.3 million, a decrease of $18.4 million from the prior quarter.

This decrease primarily reflected the $19.5 million gain recognized in the second quarter from the Nebraska branch transaction. Non-interest expense was $157.1 million for the third quarter, a decrease of $1.8 million from the prior quarter.

Moving to the balance sheet. Loans decreased by $296 million in the third quarter.

A number of payoffs we anticipated in the third quarter shifted into the early fourth quarter. As we look to the loan decline in the quarter, this was influenced by a $47.7 million decline in indirect lending loans, a $64.9 million decline in the retained out-of-market portfolio, and a $36.8 million decline in the residential portfolio.

While total deposits decreased $52.8 million to $21.4 billion in the quarter, when adjusted for the exit of the one large collateralized deposit, deposits increased quarter-over-quarter. Our deposit mix further improved in the quarter, as non-interest-bearing balances extended the increase we experienced in the prior quarter.

The ratio of loans held for investment to deposits was 65.4% at the end of the quarter, compared to 66.6% at the end of the prior quarter, and 70.1% at the end of the third quarter of last year. Turning to credit.

Net charge-offs increased by $0.2 million in the third quarter to $9.9 million, or 28 basis points of average loans. The company recorded a $10.5 million provision for credit losses in the third quarter, driven primarily by the charge-offs, a 2 basis point increase in funded loan ACL to 1.30%, and higher unfunded allowance due mostly to an increase in unfunded construction commitments.

Criticized loans were stable in the quarter, with an increase of $2.1 million, or 0.2% from the prior quarter, and declined 19% from a year ago. Nonperforming assets declined 6% during the quarter.

We repurchased approximately 2 million shares in the third quarter, totaling approximately $76 million, and repurchases since the initiation of the program in August 2025 totaled about $347 million. Share repurchases remain a key capital allocation tool to drive shareholder value.

The investment portfolio unrealized loss position increased with interest rates during the quarter, while expected principal cash flows remained relatively stable with limited extension. Our strategy diversifies risk through shorter maturities, floating-rate products, and lower capital intensity instruments.

Together with natural back-book run-off, this improves our ability to manage interest rate exposure. While meaningful, the recent move in interest rates has not changed our near-term strategic capital deployment plans at this time, and all else being equal, should support asset repricing and medium-term earnings.

Finally, we declared a dividend of 47 cents per common share, which equates to a 5% annualized yield based on the average closing price of the company's common stock during the third quarter. Our common equity Tier 1 capital ratio ended the third quarter at 14.36%, a decrease of 18 basis points from the prior quarter.

Our leverage ratio is 9.49% at the end of the third quarter, compared to 9.59% at the end of the prior quarter. Our capital levels provide us with the flexibility to enhance shareholder returns while supporting long-term accretive growth.

Moving to our guidance. In line with the prior quarter, our balance sheet expectations continue to include more meaningful payoffs within our commercial loan portfolio in the fourth quarter and further success in exiting some non-relationship and out-of-market credits.

On the deposit side, our guidance continues to incorporate the positive trends with end-customer acquisition. Our net interest income guidance at the midpoint assumes expansion in NII into the fourth quarter, as we continue to benefit from meaningful repricing, a stabilization of earning assets, and relatively strong non-interest-bearing balance performance.

The September rate increase benefited asset yields late in the third quarter, while the related deposit repricing will be more fully reflected in the fourth quarter. As a result of that, as well as the impact from the larger high-cost deposit exiting in the third quarter, we expect a smaller sequential margin benefit in the fourth quarter than we realized in the third quarter.

Our expense forecast includes continued investment in areas that support our customer acquisition efforts. As we referenced last quarter, we will be opening two branches in Colorado in the first half of 2027 and are consolidating three additional locations in the fourth quarter of this year.

We will maintain our expense discipline and have been pairing noted investments with efficiencies. Over the prior 12 months, net interest margin has improved 19 basis points, and average deposits per average diluted share has improved approximately 3%.

Average deposits per branch improved 6%, and net interest income per share improved 8% compared to the third quarter of 2025. With that, I'll hand the call back to Jim.

Thank you, David. Our multiyear strategy continues to gain traction across the franchise and enhance our long-term earnings power.

Our capital deployment remains disciplined, balancing investments in high-opportunity markets to support future growth with share repurchases. We believe that the continued growth in non-interest-bearing deposits that we saw in the third quarter provides encouraging evidence that our relationship banking efforts are resonating with clients.

Our go-to-market strategy has increased scalability, improved market alignment, and expanded banker capacity to fulfill our primary objectives of enhancing our best-in-class deposit franchise. We are well positioned to execute on our strategy across a range of interest rate environments.

We look forward to future earnings calls as disciplined relationship growth and earning asset yield expansion increasingly contribute to results. Now I would like to open the call for questions.

Hey, good morning.

Morning, Andrew.

Hey, I wanted to start just on deposits. I appreciate the color around some of the moving pieces here in the third quarter.

Looks like the fourth quarter guide or the full year guide kind of implies you step up from here. I think if I recall there's usually some seasonal headwinds in the fourth quarter.

Can you just talk through what you're seeing kind of boots on the ground from a deposit standpoint or deposit growth standpoint here in the fourth quarter? What kind of gives you confidence about deposits maybe inching up?

Sure, Andrew. I think as you look to kind of the midpoint of that guide in the fourth quarter, that's generally implying about flat year over year when you back out some of those branch sales and that large deposit.

Then as we look kind of to the underlying core, we're seeing that strength in non-interest-bearing. Our seasonality tends to be strong early in the fourth quarter, a little bit weaker late, we think kind of putting those together, it's the right range for us to land in.

Got it. Okay.

Then David, I think you called out towards the end of your remarks just the NII per share growth over the past 12 months, but when we look at it just straight NII dollars are down versus 3Q '25. When you look over the next 12 months, can you get NII growth without balance sheet growth just as a function of what you see in terms of margin expansion?

Or do you really need to get back to balance sheet growth in order to drive actual dollar NII growth?

I think if you look back over the past year, there's a few different things, the two major being the branch transactions, right? We had the branch transaction in Q4 of '25 and then the second one in Q2 of '26, and so those together took about a billion dollars out of deposits.

If you kind of adjust the NII for that, I think we're already at a point of expanding NII. Then quarter over quarter, given the NII expansion there and then our view that we think the deposit profile is stabilized, we view it as we're into the NII expansion part of the story.

Hey, good morning. Thanks for the questions.

Just on the asset repricing story, the slide that you have in your deck is very helpful, but can you give us a sense for the pick up in spreads we should assume given where rates are today?

Sure. Investment portfolio side, I think about five-year plus we'll call it the 40 to 50 basis point range is right.

We have a combination of again, variable and belly of the curve type of instruments, and so that's an approximate range on that front. On the lending side, would point to three-quarter or third quarter, excuse me, new loan yields kind of in that mid-6% range.

There's of course been a lot of curve volatility, but that kind of can give you a broad understanding of where spreads are.

Got it. Then just on deposit costs, if we could get the spot rate at the end of September given that large balance that left.

Then your deposit beta assumption on the way up here, I think you did 27% on the way down?

Sure. On the cost of deposits, interest-bearing deposit cost for the full month of September was 1.51% versus 1.49% in the quarter.

Then as we think about the forward expectation, I would view it as generally aligned with the disclosure we have in our Q and in our NII modeling, and so I think that's the right way to think about it.

Thanks. Good morning.

Wanted to check in maybe on the buyback appetite. If we think about 10 million shares roughly in the last year, want to look forward to '27 and maybe the dynamic exchange as you maybe kind of turn to growth at some point, and so just want to kind of check in with that appetite level and understanding that that could alter over the course of the year, but just initial thoughts on roughly half that level or something matching it.

Any initial thoughts, thanks.

Sure, Jeff. I think a couple things.

I think near term, we have what I would view as a holistic approach to capital planning, kind of given the different factors including visibility into the investment portfolio cash flows, improving profitability, etc., we continue to be comfortable deploying capital. I think we continue to be in that active part of the capital deployment plan.

I think as we go forward, our levels continue to support meaningful deployment. Balance sheet growth is always going to be the first and most accretive option for capital allocation, and so as we see that low-cost core deposit and lending growth, that would at some point impact capital deployment, but in the near term we continue to be in an excess capital position, we intend to continue deploying capital.

David, just to kind of quantify that, a 2 million shares a quarter for the next couple quarters is sort of the view and then thereafter maybe lessening as growth comes on. Is that oversimplifying?

I think each quarter will depend on the facts and circumstances. We don't have a specific quarterly target.

It'll depend on market factors, what we're seeing for balance sheet growth, etc., but I think I would just point you to we continue to be and intend to be active, but facts and circumstances will develop over time.

Hi, can you hear me now?

Oh, sorry about that. No, my question was really it sounds like there were some payoffs expected in the loan book in the third quarter that were pushed into the fourth.

Can you maybe quantify that amount so we know where we're starting off with here in the fourth quarter for loan balances?

Andrew, I think I would just point you to kind of if you look to where our guidance is for year-end, that's informed by some of our view of payoffs, and we've seen some of those early October and so those have come through as expected. I think if you look at where those are coming from, we've talked about that out-of-market portfolio that continues to be a main driver and something we're actively working through and having success there.

Then continue to see that indirect amortization as well as other activity. Not a specific figure there, but I think the midpoint of the loan guide is a reasonable point, and that's what we think is our best estimate.

Got it. Then the commentary on earning assets stabilizing, is that really a comment on deposit growth and where deposit balances are?

I guess how does deposit growth look here going into the fourth quarter and into next year, should we start to see earning assets rise?

Yes, earning assets from here is a function of deposit growth, mix of course being a separate but important conversation. I think from an underlying deposit perspective, we've seen our second consecutive quarter of non-interest-bearing expansion both periodically and on a year-over-year basis when adjusted for the sold deposits, and so we're very pleased with that.

It's an important part of our strategy, and if you look to how we're executing out in the market, it's a full relationship approach, and so that's where we think that's very important. Yes, you're right, it is a function of deposit growth.

Then I think too early to provide a '27 guide, but our focus continues to be on enhancing and growing that deposit franchise, and so our intent is to grow earning assets.

Hey, good morning. Thanks for the question.

Maybe sticking on the topic of deposits, the guide was reduced slightly and I know maintaining deposit balances and relationships is really key for the longer-term outlook for the franchise. Just wondering, looks like it was mostly on the rate side, but if you could speak to that and kind of the drivers of the reduction in the deposit guide for the year?

Thanks.

I think just a couple comments. One, I would say just kind of tweaking is in zooming in as we get closer to the end of the year, but two, we talked about that large deposit exiting.

Our actual expectation and view of what we'll call the underlying core deposits hasn't changed. We're continuing to see strength there, and again, a couple quarters in a row of non-interest-bearing growth.

Kelly, one thing I would add, too, is

we've

seen improvement in the growth in number of clients as well, which is, I think a direct result of some branding efforts and also frankly our bankers doing a great job of expanding relationships. As growth in number of clients begets growth in deposits in the long term and generates new fee income opportunities, we're happy with what we're seeing at the core of the bank.

Totally understood. I think switching to credit quality, criticized remain elevated, although overall we haven't seen much by way of increased credit costs, and net charge-offs have been within guide.

Just wondering how you're thinking about the overall outlook for the health of the portfolio in the higher-rate environment, if there's anything at the margins where you're seeing incremental stress, and then also wondering, you guys have been so proactive on the credit front if that's been overall incrementally probably helpful here as we go into this rate cycle. Thanks.

Thanks for the question, Kelly. You're right.

We saw less improvement in credit quality when compared to the previous quarter. However, I think I mentioned it in my opening comments, we're down in criticized loans 18% year over year.

As I've said on previous calls, it's a dynamic part of the bank, it won't move on a straight linear path quarter to quarter, but directionally over the long term we anticipate continued improvement in that area. We remain focused on that primary source of repayment and the focus is on whether the property and/or business is performing as expected.

As to the higher rates, that's a good question, and just offer a few thoughts on that front. There's no doubt higher rates can impact existing loans on the books.

As to the criticized loans, these loans are consistently reviewed by our bankers and credit teams, discussed, and so confident we have a good handle on the impact of higher rates across all economic risk factors. Then in addition, we stress upcoming maturities for higher rates, and that becomes part of the renewal conversation with borrowers as we approach the maturity date.

You said it, I'm a big believer in proactive credit risk management, and I think you've seen that over the past two years, because that's what sets you up to perform well in all economic cycles.

Great. Thank you so much for the color.

I'll step back.

Thanks. David, can we follow up on the coming topic on the mix of earning assets?

Because as we've seen over the last several quarters, the percentage of loans earning assets has come down, and now you've built up the securities portfolio that's throwing off regular cash. Is it possible we can start to see the mix of earning assets start to turn towards more loans relative to sources of liquidity?

Hi, Tim. I think near term, that's not our expectation in the fourth quarter.

The guide implies that

our loans decline, deposits flat to higher in the fourth quarter. I think into '27, it'll depend on pace of lending versus deposit growth.

Of course, we're not going to provide a forecast today or a guide today on '27, but we're seeing good underlying activity in lending. I think, near term, we would expect continued pressure on the mix.

Long term, our intent is to stabilize or improve that.

Okay. Then a question about the chart on page 6, the average deposits per branch.

In the current rate environment, is $79 million the right number per branch given that the breakeven point for branch is probably higher since interest rates are higher?

The breakeven rate per branch depends on the cost of the branch, and if you look at our footprint, we would have some pretty low-cost branches in the mix. I think the median peers about $150 million, and we've always said given our footprint of a higher mix of some rural and mid-markets, our average branch size will not look like that of the peers.

Like I said, the underlying expense structures also different. The branch optimization efforts you've seen us deploy here, whether it's closing and consolidating, that's helped improve that about 10% over the last 18 months, and our goal would be to improve that number over time.

All right, great. Thanks, gentlemen.

Hey, good morning. Just wanted to go back to the comments you just made on the earning asset mix and how it's shifting towards securities in 4Q.

Against that sort of backdrop and the implications on margin, what is the true incentive for pushing deposit growth?

I think deposit growth is always going to be our number one priority. That's what creates near- and long-term franchise value, and so I think across all environments we'll look to drive customer acquisition and deposit growth.

Then the mix, again, fourth quarter is just our view that we see some near-term payoffs, especially in that out-of-market and other portfolios, and so that we think drives reported lending balances lower in the fourth

quarter. I would just add that we're not running rate promotions to grow deposits.

That's why we called out it's two consecutive quarters of growth in non-interest-bearing deposits. That's the granular, low-cost funding that I think is the power of the franchise.

We're going to keep building on that.

Understood. Thank you for that.

Just a quick one on unfunded commitments. Could you give us an update for how those trended in 3Q and what the pipelines look like?

Sure. We saw an increase in the third quarter in that construction line, and we noted that as a driver of the increase in unfunded provisions.

We were pleased with that. Those were a variety of well-priced, well-structured projects, and so it's an example of some of that underlying improvement we're seeing in customer acquisition and production.

That'll of course fund more as a '27 impact, but we're seeing some encouraging signs there. Again, would point you to that unfunded provision increase.

Thanks for taking my questions.

Great. Thank you.

Good morning. First question underneath the planned loan payoffs and paydowns, what is the underlying growth?

I'm trying to get a sense for what you refer to on your guidance slide as improved commercial production. Is that growth accelerating, and can that acceleration of growth continue into next year?

Would love to have some context behind that.

Sure. I'll start with a couple of comments.

I think as we look year over year, we have seen a material increase in commercial production. I think there's one more increase we're looking for to have that underlying portfolio grow.

From a reported perspective and noted a little bit in the prepared remarks, there are a series of portfolios in the near term impacting reported balances, which points to that underlying commercial book being closer to flat, but still modestly declining at this point. As we look to '27, would note the addition of RMs and capacity we think sits in the business, and so we're not today giving a specific point we think that turns, but we think we are closer than further away, and we think we have the right capacity in the business.

Great. Thank you.

That's what I was looking for. Then maybe as a follow-up, what are the remaining opportunities to improve efficiency?

Basically do you think you can generate positive operating leverage next year without meaningful balance sheet growth?

Sure. I would say again, still too early to provide a '27 guide, but I think as we look to our margin, we think through '27 there's continued fixed asset repricing.

I think there it actually could become a little bit more meaningful in 2027 as you look to the quantity of loan maturities and then continued significant cash flow in the investment portfolio and a supportive yield curve. Then stability and modest growth in the underlying core low-cost deposit franchise is helpful.

The combination of those we think is very powerful to NII, and again, just from a high-level perspective, there's a significant quantity of trapped earnings in those assets that are curing currently and through '27 and on. We think we're well positioned.

Again, don't want to provide a '27 guide today, but we think there are some very strong underlying factors supporting '27 and forward.

Appreciate that. Thanks for taking my questions.

Thanks. Jim, just wanted to circle back to a comment you made in the prepared remarks about the expense base supporting earning asset growth from here.

You've had the branch sales in the rearview and you've kind of been bouncing non-interest expense in that $157, $158 a quarter. Maybe trying to get a sense for what expense growth looks like.

Maybe that comment implies that you kind of hold the line and can grow off that. Any other detail to help on what you've meant by that would be helpful.

Thanks, Jeff. First, I'd just mention we'll be providing '27 guide in January in the first quarter, but what that statement meant is for the growth we want to go get, we have what we need in terms of RMs, technology, infrastructure, there's no step-up needed from an investment standpoint to grow the bank beyond where we are today.

Okay. Appreciate the no guidance.

Effectively, well, yeah, I'll step back. Thanks.

Jeff, would just add, I think year over year, and again, we won't provide the '27 figure, but it is not reasonable to expect normal inflationary factors on our expense base, we wouldn't be holding to a nominal figure year over year when you get normal merit and things like that, but again, we don't view there's a significant missing piece of investment needed outside of normal factors.

Okay. Helpful.

Thank you, David.

All right, well, thank you for joining the call today, and thank you for the questions. As always, we welcome calls from investors and analysts, please reach out if you have any follow-up questions, and thank you for tuning into the call today.

Have a good day.