Israel Englander’s MBX Biosciences MBX Stock Holding History

Israel Englander’s Portfolio MBX Stock Details MBX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$12.5M	Sell	226,151 -338,264	-60%	-$11.8M	﹤0.01%	2065
2026 Q1	$16.8M	Buy	564,415 +102,366	+22%	+$3.48M	0.01%	1691
2025 Q4	$14.6M	Sell	462,049 -193,367	-30%	-$4.69M	0.01%	1882
2025 Q3	$11.5M	Sell	655,416 -111,424	-15%	-$1.49M	﹤0.01%	2252
2025 Q2	$8.75M	Buy	766,840 +596,400	+350%	+$6.08M	﹤0.01%	2404
2025 Q1	$1.26M	Sell	170,440 -163,202	-49%	-$1.73M	﹤0.01%	4177
2024 Q4	$6.15M	Sell	333,642 -106,769	-24%	-$2.28M	﹤0.01%	2640
2024 Q3	$11.4M	Buy	+440,411	New	+$10.1M	0.01%	2068

Other funds holding MBX

FLSM

Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

NMC

NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return

OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

PBA

Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return

NVP Associates Menlo Park, California $328M AUM 166.51% 1-Year Est. Return

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

PCH

Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return

Israel Englander's MBX Position: Q2 2026 in Review

Israel Englander reduced its MBX Biosciences (MBX) stake by 60% in Q2 2026, selling an estimated $11.8M and leaving 226,151 shares worth $12.5M. The position accounts for ﹤0.01% of the portfolio, ranked #2065.

Israel Englander first reported a position in MBX in Q3 2024 and has held it in 8 quarters since. The position peaked at $16.8M in Q1 2026. 171 funds tracked by Wall St. Rank hold MBX as of Q2 2026.

Israel Englander held 226,151 shares of MBX Biosciences worth $12.5M as of Q2 2026.
Israel Englander sold 338,264 MBX Biosciences shares in Q2 2026, an estimated $11.8M.
MBX Biosciences made up ﹤0.01% of Israel Englander's portfolio in Q2 2026, its #2065 holding.
Israel Englander first reported a position in MBX Biosciences in Q3 2024 and has held it in 8 quarters since.
Israel Englander's MBX Biosciences position peaked at $16.8M in Q1 2026.
171 funds tracked by Wall St. Rank held MBX Biosciences as of Q2 2026.

Based on Millennium Management's 13F filing for Q2 2026, filed 14 Aug 2026.