Oberweis Asset Management’s GeneDx Holdings WGS Stock Holding History

Oberweis Asset Management’s Portfolio WGS Stock Details WGS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$16.8M	Buy	261,370 +62,600	+31%	+$5.71M	0.5%	77
2025 Q4	$25.9M	Buy	198,770 +4,850	+3%	+$666K	0.95%	25
2025 Q3	$20.9M	Buy	193,920 +31,020	+19%	+$3.38M	0.8%	46
2025 Q2	$15M	Buy	162,900 +39,400	+32%	+$3.09M	0.65%	60
2025 Q1	$10.9M	Hold	123,500	–	–	0.55%	66
2024 Q4	$9.49M	Buy	123,500 +1,500	+1%	+$105K	0.45%	84
2024 Q3	$5.18M	Hold	122,000	–	–	0.27%	131
2024 Q2	$3.19M	Buy	+122,000	New	+$2.31M	0.2%	153

Other funds holding WGS

Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return

Casdin Capital New York $1.32B AUM 76.62% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

ZDA

Zweig-DiMenna Associates New York $722M AUM 97.69% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Oberweis Asset Management's WGS Position: Q1 2026 in Review

Oberweis Asset Management increased its GeneDx Holdings (WGS) stake by 31% in Q1 2026, buying an estimated $5.71M and bringing the position to 261,370 shares worth $16.8M. The position accounts for 0.5% of the portfolio, ranked #77.

Oberweis Asset Management first reported a position in WGS in Q2 2024 and has held it in 8 quarters since. The position peaked at $25.9M in Q4 2025. 240 funds tracked by Wall St. Rank hold WGS as of Q1 2026.

Oberweis Asset Management held 261,370 shares of GeneDx Holdings worth $16.8M as of Q1 2026.
Oberweis Asset Management bought 62,600 GeneDx Holdings shares in Q1 2026, an estimated $5.71M.
GeneDx Holdings made up 0.5% of Oberweis Asset Management's portfolio in Q1 2026, its #77 holding.
Oberweis Asset Management first reported a position in GeneDx Holdings in Q2 2024 and has held it in 8 quarters since.
Oberweis Asset Management's GeneDx Holdings position peaked at $25.9M in Q4 2025.
240 funds tracked by Wall St. Rank held GeneDx Holdings as of Q1 2026.

Based on Oberweis Asset Management's 13F filing for Q1 2026, filed 15 May 2026.