Annual report [Section 13 and 15(d), not S-K Item 405]

SECURITIES AND OTHER INVESTMENTS

v3.25.4
SECURITIES AND OTHER INVESTMENTS
12 Months Ended
Dec. 31, 2025
Securities [Abstract]  
SECURITIES AND OTHER INVESTMENTS

3. SECURITIES AND OTHER INVESTMENTS

Available for Sale

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, are as follows (dollars in thousands):

Amortized

Gross Unrealized

Estimated

  ​ ​ ​

Cost

  ​ ​ ​

Gains

  ​ ​ ​

(Losses)

  ​ ​ ​

Fair Value

2025

 

  ​

 

  ​

 

  ​

  ​

U.S. government and agency securities

$

103,335

$

681

$

(14)

$

104,002

Obligations of states and political subdivisions

 

589,194

 

178

 

(101,487)

 

487,885

Corporate and other bonds (1)

 

221,432

 

709

 

(4,207)

 

217,934

Commercial MBS

 

 

Agency

354,405

 

1,276

 

(39,806)

315,875

Non-agency

115,009

 

187

 

(1,905)

113,291

Total commercial MBS

469,414

 

1,463

 

(41,711)

429,166

Residential MBS

Agency

2,942,900

 

15,838

 

(165,524)

2,793,214

Non-agency

161,767

 

935

 

(2,558)

160,144

Total residential MBS

3,104,667

 

16,773

 

(168,082)

2,953,358

Other securities

 

1,956

 

 

 

1,956

Total AFS securities

$

4,489,998

$

19,804

$

(315,501)

$

4,194,301

(1) Other bonds include asset-backed securities.

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, are as follows (dollars in thousands):

Amortized

Gross Unrealized

Estimated

  ​ ​ ​

Cost

  ​ ​ ​

Gains

  ​ ​ ​

(Losses)

  ​ ​ ​

Fair Value

2024

U.S. government and agency securities

$

65,650

$

390

$

(27)

$

66,013

Obligations of states and political subdivisions

597,956

 

84

 

(129,703)

 

468,337

Corporate and other bonds (1)

 

253,526

 

505

 

(9,319)

 

244,712

Commercial MBS

 

 

Agency

285,949

 

348

 

(44,678)

241,619

Non-agency

61,552

 

4

 

(2,110)

59,446

Total commercial MBS

347,501

 

352

 

(46,788)

301,065

Residential MBS

Agency

1,478,648

 

1,375

 

(216,754)

1,263,269

Non-agency

99,622

 

672

 

(3,384)

96,910

Total residential MBS

1,578,270

 

2,047

 

(220,138)

1,360,179

Other securities

 

1,860

 

 

 

1,860

Total AFS securities

$

2,844,763

$

3,378

$

(405,975)

$

2,442,166

(1) Other bonds include asset-backed securities.

The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses, which are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position for the following periods ended (dollars in thousands).

Less than 12 months

More than 12 months

Total

  ​

Fair

  ​

Unrealized

  ​

Fair

  ​

Unrealized

  ​

Fair

  ​

Unrealized

Value

Losses

Value (2)

Losses

Value

Losses

December 31, 2025

 

 

 

 

 

 

U.S. government and agency securities

$

6,689

$

(6)

$

737

$

(8)

$

7,426

$

(14)

Obligations of states and political subdivisions

25

473,201

(101,487)

473,226

(101,487)

Corporate and other bonds (1)

 

37,988

 

(75)

 

98,125

 

(4,132)

 

136,113

 

(4,207)

Commercial MBS

 

Agency

44,536

(166)

161,001

(39,640)

205,537

 

(39,806)

Non-agency

39,171

(177)

22,429

(1,728)

61,600

(1,905)

Total commercial MBS

83,707

(343)

183,430

(41,368)

267,137

(41,711)

Residential MBS

Agency

359,095

(1,564)

886,626

(163,960)

1,245,721

(165,524)

Non-agency

48,559

(247)

24,868

(2,311)

73,427

(2,558)

Total residential MBS

407,654

(1,811)

911,494

(166,271)

1,319,148

(168,082)

Total AFS securities

$

536,063

$

(2,235)

$

1,666,987

$

(313,266)

$

2,203,050

$

(315,501)

December 31, 2024

 

  ​

 

  ​

 

  ​

 

  ​

 

  ​

 

  ​

U.S. government and agency securities

$

1,935

$

(2)

$

1,286

$

(25)

$

3,221

$

(27)

Obligations of states and political subdivisions

6,560

(322)

444,056

(129,381)

450,616

(129,703)

Corporate and other bonds (1)

 

8,620

 

(27)

 

145,655

 

(9,292)

 

154,275

 

(9,319)

Commercial MBS

 

Agency

31,291

(359)

160,880

(44,319)

192,171

(44,678)

Non-agency

24,864

(1,188)

21,110

(922)

45,974

(2,110)

Total commercial MBS

56,155

(1,547)

181,990

(45,241)

238,145

(46,788)

Residential MBS

Agency

104,477

(546)

895,714

(216,208)

1,000,191

(216,754)

Non-agency

6,067

(98)

27,851

(3,286)

33,918

(3,384)

Total residential MBS

110,544

(644)

923,565

(219,494)

1,034,109

(220,138)

Total AFS securities

$

183,814

$

(2,542)

$

1,696,552

$

(403,433)

$

1,880,366

$

(405,975)

(1) Other bonds include asset-backed securities.

(2) Comprised of 703 and 726 individual securities as of December 31, 2025 and December 31, 2024, respectively.

The Company has evaluated AFS securities in an unrealized loss position for credit related impairment at December 31, 2025 and 2024 and concluded no impairment existed based on several factors which included: (1) the majority of these securities are of high credit quality, (2) unrealized losses are primarily the result of market volatility and increases in market interest rates, (3) the contractual terms of the investments do not permit the issuer(s) to settle the securities at a price less than the cost basis of each investment, (4) issuers continue to make timely principal and interest payments, and (5) the Company does not intend to sell any of the investments and the accounting standard of “more likely than not” has not been met for the Company to be required to sell any of the investments before recovery of its amortized cost basis.

Additionally, the majority of the Company’s MBS are issued by the Federal National Mortgage Association, the Federal Home Loan Mortgage Corporation, and the Government National Mortgage Association and do not have credit risk given the implicit and explicit government guarantees associated with these agencies. In addition, the non-agency mortgage-backed and asset-backed securities generally received a 20% simplified supervisory formula approach rating. The Company’s AFS investment portfolio is generally highly-rated or agency backed. At December 31, 2025 and 2024, all AFS securities were current with no securities past due or on non-accrual, and no ACL was held against the Company’s AFS securities portfolio.

The following table presents the amortized cost and estimated fair value of AFS securities as of December 31, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

2025

2024

  ​ ​ ​

Amortized

  ​ ​ ​

Estimated

  ​ ​ ​

Amortized

  ​ ​ ​

Estimated

Cost

Fair Value

Cost

Fair Value

Due in one year or less

$

63,692

$

63,993

$

35,954

$

35,808

Due after one year through five years

 

298,683

 

299,727

 

215,517

 

215,513

Due after five years through ten years

 

492,242

 

475,707

 

286,487

 

271,443

Due after ten years

 

3,635,381

 

3,354,874

 

2,306,805

 

1,919,402

Total AFS securities

$

4,489,998

$

4,194,301

$

2,844,763

$

2,442,166

Refer to Note 10 "Commitments and Contingencies" in this Form 10-K for information regarding the estimated fair value of AFS securities that were pledged to secure public deposits, repurchase agreements, and for other purposes as permitted or required by law as of December 31, 2025 and 2024.

Accrued interest receivable on AFS securities totaled $15.0 million and $10.1 million at December 31, 2025 and 2024 respectively, and is included in “Other assets” on the Company’s Consolidated Balance Sheets. For the years ended December 31, 2025, 2024, and 2023, accrued interest receivable write-offs were not material to the Company’s consolidated financial statements.

Held to Maturity

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, are as follows (dollars in thousands):

Carrying

Gross Unrealized

Estimated

  ​ ​ ​

Value

  ​ ​ ​

Gains

  ​ ​ ​

(Losses)

Fair Value

2025

  ​

 

  ​

 

  ​

  ​

Obligations of states and political subdivisions

$

793,162

$

4,139

$

(20,951)

$

776,350

Corporate and other bonds (1)

2,255

(26)

2,229

Commercial MBS

 

Agency

29,074

(5,619)

23,455

Non-agency

11,703

103

(504)

11,302

Total commercial MBS

40,777

103

(6,123)

34,757

Residential MBS

Agency

35,793

(4,397)

31,396

Non-agency

12,229

(149)

12,080

Total residential MBS

48,022

(4,546)

43,476

Total HTM securities

$

884,216

$

4,242

$

(31,646)

$

856,812

(1) Other bonds include asset-backed securities.

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, are as follows (dollars in thousands):

Carrying

Gross Unrealized

Estimated

  ​ ​ ​

Value

  ​ ​ ​

Gains

  ​ ​ ​

(Losses)

  ​ ​ ​

Fair Value

2024

 

  ​

 

  ​

 

  ​

 

  ​

Obligations of states and political subdivisions

$

697,683

$

715

$

(31,763)

$

666,635

Corporate and other bonds (1)

3,322

(82)

3,240

Commercial MBS

Agency

26,787

(6,185)

20,602

Non-agency

17,922

28

(659)

17,291

Total commercial MBS

44,709

28

(6,844)

37,893

Residential MBS

Agency

37,808

(6,288)

31,520

Non-agency

20,329

(282)

20,047

Total residential MBS

58,137

(6,570)

51,567

Total HTM securities

$

803,851

$

743

$

(45,259)

$

759,335

(1) Other bonds include asset-backed securities.

The following table presents the amortized cost of HTM securities as of December 31, by security type and credit rating (dollars in thousands):

  ​ ​ ​

Obligations of states and political

  ​ ​ ​

Corporate and other

  ​ ​ ​

Mortgage-backed

  ​ ​ ​

Total HTM

subdivisions

bonds

securities

securities

2025

Credit Rating:

 

 

AAA/AA/A

$

782,453

$

$

1,702

$

784,155

BBB/BB/B

1,122

1,122

Not Rated – Agency (1)

64,867

64,867

Not Rated – Non-Agency (2)

 

9,587

 

2,255

22,230

34,072

Total

$

793,162

$

2,255

$

88,799

$

884,216

2024

Credit Rating:

 

 

AAA/AA/A

$

686,923

$

$

5,748

$

692,671

BBB/BB/B

1,144

1,144

Not Rated – Agency (1)

64,595

64,595

Not Rated – Non-Agency (2)

 

9,616

 

3,322

32,503

45,441

Total

$

697,683

$

3,322

$

102,846

$

803,851

(1) Generally considered not to have credit risk given the government guarantees associated with these agencies.

(2) Non-agency mortgage-backed and asset-backed securities have limited credit risk, supported by most receiving a 20% simplified supervisory formula approach rating.

The following table presents the amortized cost and estimated fair value of HTM securities as of December 31, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

2025

2024

  ​ ​ ​

Carrying

  ​ ​ ​

Estimated

  ​ ​ ​

Carrying

  ​ ​ ​

Estimated

Value

Fair Value

Value

Fair Value

Due in one year or less

$

507

$

503

$

3,369

$

3,358

Due after one year through five years

 

18,813

 

19,150

 

18,293

 

18,547

Due after five years through ten years

 

222,284

 

216,095

 

115,243

 

109,358

Due after ten years

 

642,612

 

621,064

 

666,946

 

628,072

Total HTM securities

$

884,216

$

856,812

$

803,851

$

759,335

Refer to Note 10 “Commitments and Contingencies” in this Form 10-K for information regarding the estimated fair value of HTM securities that were pledged to secure public deposits as permitted or required by law as of December 31, 2025 and 2024.

Accrued interest receivable on HTM securities totaled $9.9 million and $8.4 million at December 31, 2025 and 2024, respectively, and is included in “Other assets” on the Company’s Consolidated Balance Sheets. For the years ended December 31, 2025, 2024, and 2023, accrued interest receivable write-offs were not material to the Company’s consolidated financial statements.

The Company’s HTM investment portfolio primarily consists of highly rated municipal securities and agency mortgage-backed securities. At December 31, 2025 and 2024, the Company’s HTM securities were all current, with no securities past due or on non-accrual. The Company’s HTM securities ACL was immaterial at December 31, 2025 and 2024.

Restricted Stock, at cost

The FHLB required the Bank to maintain stock in an amount equal to 4.75% of outstanding borrowings and a specific percentage of the member’s total assets at December 31, 2025 and 2024. The FRB requires the Company to maintain stock with a par value equal to 6% of its outstanding capital. At December 31, 2025 and 2024, restricted stock consists of FRB stock in the amount of $141.2 million and $82.9 million, respectively, and FHLB stock in the amount of $49.0 million and $20.1 million, respectively.

Tax Equity Investments

For the years ended December 31, 2025, 2024, and 2023, the Company recognized amortization of $10.8 million, $8.8 million, and $4.8 million, respectively, and tax credits and tax savings of $14.2 million, $10.3 million, and $5.7 million, respectively, associated with these investments within “Income tax expense” on the Company’s Consolidated Statements of Income. The carrying value of the Company’s investments in these tax equity investments was $136.5 million and $88.7 million at December 31, 2025 and 2024, respectively. At December 31, 2025 and 2024, the Company’s recorded liability totaled $91.5 million and $55.6 million, respectively, for the related unfunded commitments, which is expected to be paid throughout the years 2026 through 2043.

Realized Gains and Losses

The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the years ended December 31, (dollars in thousands):

2025

  ​ ​ ​

2024

  ​ ​ ​

2023

Realized gains (losses): (1)

Gross realized gains

 

$

36

 

$

33

 

$

1,355

Gross realized losses

 

(117)

 

(6,526)

 

(42,344)

Net realized losses

 

$

(81)

 

$

(6,493)

 

$

(40,989)

Proceeds from sales of securities

 

$

630,097

 

$

642,985

 

$

899,872

(1) Includes gains (losses) on sales and calls of securities