Birch Hill Investment Advisors LLC

Position in SERA — Sera Prognostics, Inc.

CIK 1424177 Boston, MA

Position in SERA

as of Jun 30, 2026 · filed Jul 21, 2026 Compact

Position Value

$49,673

-$5,731 QoQ

Shares Held

27,293

0.0% QoQ

Ownership

0.069%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#27

of 46 holders

Holding Since

Sep 2025

4 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

Birch Hill Investment Advisors LLC holds $69,088,225 across 4 Medical Devices names. SERA ranks #4 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EW	Edwards Lifesciences Corp	735,377	$66,522,203
2	ABT	Abbott Laboratories	23,185	$2,103,806
3	ZBH	Zimmer Biomet Holdings, Inc.	4,792	$412,543
4	SERA	Sera Prognostics, Inc. This page	27,293	$49,673

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$49,673	27,293	0.0%	Shares	Sole	2026-07-21
2026-03-31	$55,404	27,293	0.0%	Shares	Sole	2026-04-29
2025-12-31	$80,514	27,293	0.0%	Shares	Sole	2026-01-27
2025-09-30	$83,516	27,293	—	Shares	Sole	2025-10-23
No filing history on record for this holder in this stock.