STERLING INFRASTRUCTURE INC

Ticker: STRL CUSIP: 859241101 Class: COM

MACKAY SHIELDS LLC's Holding History (CIK: 0000061227)

Note: Option positions (PUT/CALL) are excluded.

Q1 2021

Shares 15,300 Value ($000) $355 Avg Close $21.79 Range $17.44 - $24.49

Q4 2020

Shares 25,926 Value ($000) $482 Avg Close $16.31 Range $13.39 - $20.82

Q3 2020

Shares 38,926 Value ($000) $551 Avg Close $12.56 Range $8.90 - $15.54

Q2 2020

Shares 13,826 Value ($000) $145 Avg Close $9.23 Range $6.72 - $11.75

Q1 2020

Shares 35,226 Value ($000) $335 Avg Close $12.73 Range $7.06 - $15.61

Q4 2019

Shares 109,526 Value ($000) $1,543 Avg Close $15.07 Range $12.69 - $17.49

Q3 2019

Shares 273,426 Value ($000) $3,596 Avg Close $12.24 Range $10.16 - $14.18

Q2 2019

Shares 265,826 Value ($000) $3,568 Avg Close $12.88 Range $11.60 - $13.94

Q1 2019

Shares 103,400 Value ($000) $1,295 Avg Close $13.28 Range $10.72 - $15.75

Q4 2018

Shares 45,700 Value ($000) $497 Avg Close $12.16 Range $9.71 - $14.35

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	15,300	$355	$21.79	$17.44 - $24.49
Q4 2020	25,926	$482	$16.31	$13.39 - $20.82
Q3 2020	38,926	$551	$12.56	$8.90 - $15.54
Q2 2020	13,826	$145	$9.23	$6.72 - $11.75
Q1 2020	35,226	$335	$12.73	$7.06 - $15.61
Q4 2019	109,526	$1,543	$15.07	$12.69 - $17.49
Q3 2019	273,426	$3,596	$12.24	$10.16 - $14.18
Q2 2019	265,826	$3,568	$12.88	$11.60 - $13.94
Q1 2019	103,400	$1,295	$13.28	$10.72 - $15.75
Q4 2018	45,700	$497	$12.16	$9.71 - $14.35