Birch Hill Investment Advisors’s PureTech Health PRTC Stock Holding History

Birch Hill Investment Advisors’s Portfolio PRTC Stock Details PRTC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-242,676	Closed	-$415K	–	199
2025 Q2	$415K	Sell	242,676 -59,324	-20%	-$1.04M	0.02%	150
2025 Q1	$560K	Hold	302,000	–	–	0.03%	133
2024 Q4	$568K	Buy	+302,000	New	+$6.33M	0.03%	136
2024 Q3	–	Sell	-302,000	Closed	-$702K	–	179
2024 Q2	$702K	Buy	+302,000	New	+$8.46M	0.03%	116
2021 Q2	–	Sell	-302,000	Closed	-$1.67M	–	164
2021 Q1	$1.67M	Hold	302,000	–	–	0.1%	79
2020 Q4	$1.66M	Buy	+302,000	New	+$13.4M	0.1%	79

Other funds holding PRTC

PCM

Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Diadema Partners Morristown, New Jersey $588M AUM 182.75% 1-Year Est. Return

PAP

Persistent Asset Partners Hong Kong $268M AUM 158.98% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

SBI Securities Tokyo, Japan $3.65B AUM 41.88% 1-Year Est. Return

Birch Hill Investment Advisors's PRTC Position: Q3 2025 in Review

Birch Hill Investment Advisors sold out of PureTech Health (PRTC) in Q3 2025, closing a stake of 242,676 shares — an estimated $415K sold.

Birch Hill Investment Advisors first reported a position in PRTC in Q4 2020 and held it in 6 quarters. The position peaked at $1.67M in Q1 2021. 6 funds tracked by Wall St. Rank hold PRTC as of Q3 2025.

Birch Hill Investment Advisors reported no remaining PureTech Health position as of Q3 2025 after selling out during the quarter.
Birch Hill Investment Advisors sold 242,676 PureTech Health shares in Q3 2025, an estimated $415K.
Birch Hill Investment Advisors first reported a position in PureTech Health in Q4 2020 and held it in 6 quarters.
Birch Hill Investment Advisors's PureTech Health position peaked at $1.67M in Q1 2021.
6 funds tracked by Wall St. Rank held PureTech Health as of Q3 2025.

Based on Birch Hill Investment Advisors's 13F filing for Q3 2025, filed 23 Oct 2025.