Weiss Asset Management LP

Position in RGEN — Repligen Corp

CIK 1357550 BOSTON, MA

Position in RGEN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$899,548

New position

Shares Held

6,593

first reported quarter

Ownership

0.012%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#231

of 476 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Weiss Asset Management LP holds $2,120,159 across 4 Medical Instruments & Supplies names. RGEN ranks #1 (42.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	RGEN	Repligen Corp This page	6,593	$899,548
2	BLFS	Biolife Solutions Inc	25,447	$718,623
3	MMSI	Merit Medical Systems Inc	4,012	$278,192
4	BAX	Baxter International Inc	10,497	$223,796

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$899,548	6,593	—	Shares	Defined	2026-08-14
No filing history on record for this holder in this stock.