TALEN ENERGY CORP

Ticker: TLN CUSIP: 87422Q109 Class: EQTY

GILDER GAGNON HOWE & CO LLC's Holding History (CIK: 0000902464)

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

Q4 2025

Shares 123,521 Value ($000) $46,301 Avg Close $388.68 Range $343.40 - $451.28

Q3 2025

Shares 130,297 Value ($000) $55,426 Avg Close $361.29 Range $255.50 - $430.71

Q2 2025

Shares 163,395 Value ($000) $47,510 Avg Close $237.27 Range $162.31 - $301.69

Q1 2025

Shares 172,992 Value ($000) $34,541 Avg Close $216.89 Range $158.08 - $258.03

Q4 2024

Shares 147,432 Value ($000) $29,703 Avg Close $195.05 Range $148.02 - $230.89

Q3 2024

Shares 147,820 Value ($000) $26,347 Avg Close $138.87 Range $98.50 - $197.61

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	123,521	$46,301	$388.68	$343.40 - $451.28
Q3 2025	130,297	$55,426	$361.29	$255.50 - $430.71
Q2 2025	163,395	$47,510	$237.27	$162.31 - $301.69
Q1 2025	172,992	$34,541	$216.89	$158.08 - $258.03
Q4 2024	147,432	$29,703	$195.05	$148.02 - $230.89
Q3 2024	147,820	$26,347	$138.87	$98.50 - $197.61