Round Rock Advisors LLC

Position in CERS — Cerus Corp

CIK 1846991 WILTON, CT

Position in CERS

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$1,039,409

+$557,171 QoQ

Shares Held

355,962

+34.3% QoQ

Ownership

0.177%

of shares outstanding

% of Portfolio

0.28%

of 13F equity value

Holder Rank

#48

of 186 holders

Holding Since

Dec 2025

3 quarters on record

Voting authority Sole 99% Shared 0% None 1%

Healthcare · as of Jun 30, 2026

Round Rock Advisors LLC holds $4,818,020 across 4 Medical Devices names. CERS ranks #2 (21.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NEOG	Neogen Corp	242,211	$2,177,476
2	CERS	Cerus Corp This page	355,962	$1,039,409
3	TCMD	Tactile Systems Technology Inc	27,240	$811,207
4	VMD	Viemed Healthcare, Inc.	69,292	$789,928

3 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,039,409	355,962	+34.3%	Shares	Sole	2026-08-12
2026-03-31	$482,238	264,966	+0.1%	Shares	Sole	2026-05-15
2025-12-31	$545,333	264,725	—	Shares	Sole	2026-04-07
No filing history on record for this holder in this stock.