Chicago Trust’s Regeneron Pharmaceuticals REGN Stock Holding History

Chicago Trust’s Portfolio REGN Stock Details REGN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q3	$387K	Sell	511 -51	-9%	-$38.5K	0.05%	273
2026 Q2	$350K	Buy	562 +259	+85%	+$176K	0.05%	297
2026 Q1	$234K	Buy	+303	New	+$232K	0.04%	343
2022 Q1	–	Sell	-1,078	Closed	-$680K	–	351
2021 Q4	$680K	Hold	1,078	–	–	0.14%	168
2021 Q3	$652K	Buy	1,078 +95	+10%	+$59K	0.14%	166
2021 Q2	$549K	Buy	+983	New	+$498K	0.13%	170

Other funds holding REGN

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $83.2B AUM 35.34% 1-Year Est. Return

Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $54.1B AUM 39.29% 1-Year Est. Return

Chicago Trust's REGN Position: Q3 2026 in Review

Chicago Trust reduced its Regeneron Pharmaceuticals (REGN) stake by 9.1% in Q3 2026, selling an estimated $38.5K and leaving 511 shares worth $387K. The position accounts for 0.05% of the portfolio, ranked #273.

Chicago Trust first reported a position in REGN in Q2 2021 and has held it in 6 quarters since. The position peaked at $680K in Q4 2021. 755 funds tracked by Wall St. Rank hold REGN as of Q3 2026.

Chicago Trust held 511 shares of Regeneron Pharmaceuticals worth $387K as of Q3 2026.
Chicago Trust sold 51 Regeneron Pharmaceuticals shares in Q3 2026, an estimated $38.5K.
Regeneron Pharmaceuticals made up 0.05% of Chicago Trust's portfolio in Q3 2026, its #273 holding.
Chicago Trust first reported a position in Regeneron Pharmaceuticals in Q2 2021 and has held it in 6 quarters since.
Chicago Trust's Regeneron Pharmaceuticals position peaked at $680K in Q4 2021.
755 funds tracked by Wall St. Rank held Regeneron Pharmaceuticals as of Q3 2026.

Based on Chicago Trust's 13F filing for Q3 2026, filed 28 Oct 2026.