SECURITIES

Schedule of certain debt securities from the available-for-sale category to the held-to-maturity category


	March 31, 2022
	Amortized
	Cost		Fair Value

	(dollars in thousands)
U.S. government agency	$	78,841	$	71,048
Mortgage-backed:
Agency residential		8,175		7,651
Agency commercial		27,834		25,432
Total	$	114,850	$	104,131

Schedule of gross unrealized losses and fair value of investments


	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
March 31, 2023	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value

Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	—	$	—	$	(12,804)	$	157,020	$	(12,804)	$	157,020
U.S. government agency		(829)		22,107		(2,584)		31,591		(3,413)		53,698
Municipal		(475)		37,739		(25,604)		188,362		(26,079)		226,101
Mortgage-backed:
Agency residential		(1,301)		48,400		(15,252)		148,449		(16,553)		196,849
Agency commercial		(794)		22,044		(14,396)		112,275		(15,190)		134,319
Corporate		(1,426)		41,224		(2,516)		15,449		(3,942)		56,673
Total available-for-sale	$	(4,825)	$	171,514	$	(73,156)	$	653,146	$	(77,981)	$	824,660

The following table presents gross unrealized losses and fair value of debt securities, aggregated by category and length of time that individual debt securities have been in a continuous unrealized loss position, as of December 31, 2022:


	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
December 31, 2022	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value

Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	(8,401)	$	92,445	$	(6,944)	$	62,070	$	(15,345)	$	154,515
U.S. government agency		(2,980)		47,370		(1,154)		7,787		(4,134)		55,157
Municipal		(10,906)		149,261		(21,283)		87,794		(32,189)		237,055
Mortgage-backed:
Agency residential		(8,332)		127,288		(9,908)		65,692		(18,240)		192,980
Agency commercial		(4,764)		62,672		(12,408)		70,216		(17,172)		132,888
Corporate		(2,594)		52,190		(1,364)		5,600		(3,958)		57,790
Total available-for-sale		(37,977)		531,226		(53,061)		299,159		(91,038)		830,385
Held-to-maturity:
U.S. government agency		(1,754)		15,751		(7,974)		62,945		(9,728)		78,696
Municipal		(314)		23,433		—		—		(314)		23,433
Mortgage-backed:
Agency residential		(4,039)		78,452		(2,431)		17,806		(6,470)		96,258
Agency commercial		(16,716)		103,298		(29,766)		158,501		(46,482)		261,799
Total held-to-maturity		(22,823)		220,934		(40,171)		239,252		(62,994)		460,186
Total debt securities	$	(60,800)	$	752,160	$	(93,232)	$	538,411	$	(154,032)	$	1,290,571

Schedule of sales of debt securities


	Three Months Ended March 31,
	2023		2022

	(dollars in thousands)
Proceeds from sales	$	145,844	$	—
Gross realized gains		—		—
Gross realized losses		(1,007)		—