Company: ISBA
Filing Date: 2025-08-11
Form Type: 10-Q
Source: 0000842517-25-000135
Chunk: 26

Company: ISABELLA BANK CORP
Filing Date: 2025-08-11
Form: 10-Q
Item: Part I, Item 1
Chunk 26
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 $— $10,236 $220,571 States and political subdivisions81,135 9 4,576 76,568 Auction rate money market preferred3,200 — 156 3,044 Mortgage-backed securities29,068 — 2,182 26,886 Collateralized mortgage obligations163,156 — 8,482 154,674 Corporate8,150 — 864 7,286 Total$515,516 $9 $26,496 $489,029 The amortized cost and fair value of AFS securities by contractual maturity at June 30, 2025 are as follows:MaturingSecurities with Variable Monthly Payments or Noncontractual MaturitiesDue inOne Yearor LessAfter OneYear ButWithinFive YearsAfter FiveYears ButWithinTen YearsAfterTen YearsTotalU.S. Treasury$110,318 $100,270 $— $— $— $210,588 States and political subdivisions11,398 18,614 20,053 22,868 — 72,933 Auction rate money market preferred— — — — 3,200 3,200 Mortgage-backed securities— — — — 26,093 26,093 Collateralized mortgage obligations— — — — 197,190 197,190 Corporate— — 8,150 — — 8,150 Total amortized cost$121,716 $118,884 $28,203 $22,868 $226,483 $518,154 Fair value$118,985 $115,038 $25,551 $20,324 $220,662 $500,560 Expected maturities for government sponsored enterprises and states and political subdivisions may differ from contractual maturities as issuers may have the right to call or prepay obligations.As the auction rate money market preferred investments have continual call dates, they are not reported by a specific maturity group. Because of their variable monthly payments, mortgage-backed securities and collateralized mortgage obligations are not reported by a specific maturity group.

11

The information in the following tables pertains to AFS securities with gross unrealized losses at June 30, 2025 and December 31, 2024, aggregated by investment category and length of time