Wallace Weitz’s Repligen RGEN Stock Holding History

Wallace Weitz’s Portfolio RGEN Stock Details RGEN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$5.57M	Buy	40,800 +15,300	+60%	+$1.88M	0.39%	40
2026 Q1	$3M	Buy	+25,500	New	+$3.56M	0.21%	43

Other funds holding RGEN

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

UCFA

United Capital Financial Advisors Irving, Texas $18.2B AUM 22.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Wallace Weitz's RGEN Position: Q2 2026 in Review

Wallace Weitz increased its Repligen (RGEN) stake by 60% in Q2 2026, buying an estimated $1.88M and bringing the position to 40,800 shares worth $5.57M. The position accounts for 0.39% of the portfolio, ranked #40.

Wallace Weitz first reported a position in RGEN in Q1 2026 and has held it in 2 quarters since. 476 funds tracked by Wall St. Rank hold RGEN as of Q2 2026.

Wallace Weitz held 40,800 shares of Repligen worth $5.57M as of Q2 2026.
Wallace Weitz bought 15,300 Repligen shares in Q2 2026, an estimated $1.88M.
Repligen made up 0.39% of Wallace Weitz's portfolio in Q2 2026, its #40 holding.
Wallace Weitz first reported a position in Repligen in Q1 2026 and has held it in 2 quarters since.
476 funds tracked by Wall St. Rank held Repligen as of Q2 2026.

Based on Weitz Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.