UNIVERSAL DISPLAY CORP

Ticker: OLED CUSIP: 91347P105 Class: Common Stock

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q3 2024

Shares 3,020 Value ($000) $634 Avg Close $199.13 Range $153.86 - $232.88

Q2 2024

Shares 165,483 Value ($000) $34,793 Avg Close $172.49 Range $145.88 - $208.77

Q1 2024

Shares 122,772 Value ($000) $20,681 Avg Close $170.29 Range $152.89 - $185.43

Q4 2023

Shares 159,153 Value ($000) $30,440 Avg Close $161.47 Range $130.51 - $190.61

Q3 2023

Shares 177,304 Value ($000) $27,835 Avg Close $148.04 Range $132.08 - $162.28

Q2 2023

Shares 210,003 Value ($000) $30,268 Avg Close $139.33 Range $122.44 - $153.08

Q1 2023

Shares 191,005 Value ($000) $29,631 Avg Close $130.36 Range $102.50 - $151.53

Q1 2018

Shares 80,392 Value ($000) $8,120 Avg Close $142.53 Range $93.92 - $198.16

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2024	3,020	$634	$199.13	$153.86 - $232.88
Q2 2024	165,483	$34,793	$172.49	$145.88 - $208.77
Q1 2024	122,772	$20,681	$170.29	$152.89 - $185.43
Q4 2023	159,153	$30,440	$161.47	$130.51 - $190.61
Q3 2023	177,304	$27,835	$148.04	$132.08 - $162.28
Q2 2023	210,003	$30,268	$139.33	$122.44 - $153.08
Q1 2023	191,005	$29,631	$130.36	$102.50 - $151.53
Q1 2018	80,392	$8,120	$142.53	$93.92 - $198.16