Ken Griffin’s Monarch Ambassador Income Index ETF MAMB Stock Holding History

Ken Griffin’s Portfolio MAMB Stock Details MAMB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$250K	Buy	+10,368	New	+$253K	﹤0.01%	10912
2025 Q4	–	Sell	-14,292	Closed	-$339K	–	13499
2025 Q3	$339K	Buy	14,292 +3,948	+38%	+$92K	﹤0.01%	10077
2025 Q2	$239K	Sell	10,344 -2,555	-20%	-$58.3K	﹤0.01%	10312
2025 Q1	$294K	Sell	12,899 -10,129	-44%	-$228K	﹤0.01%	9652
2024 Q4	$510K	Buy	+23,028	New	+$523K	﹤0.01%	8509
2024 Q1	–	Sell	-17,178	Closed	-$383K	–	15120
2023 Q4	$383K	Sell	17,178 -4,452	-21%	-$95.1K	﹤0.01%	8654
2023 Q3	$452K	Buy	21,630 +11,839	+121%	+$256K	﹤0.01%	8275
2023 Q2	$215K	Buy	+9,791	New	+$218K	﹤0.01%	9720
2022 Q4	–	Sell	-10,809	Closed	-$228K	–	15218
2022 Q3	$228K	Buy	+10,809	New	+$242K	﹤0.01%	10135
2022 Q2	–	Sell	-18,657	Closed	-$448K	–	13604
2022 Q1	$448K	Buy	+18,657	New	+$455K	﹤0.01%	9659
2021 Q3	–	Sell	-14,781	Closed	-$375K	–	14313
2021 Q2	$375K	Buy	+14,781	New	+$374K	﹤0.01%	10728

Other funds holding MAMB

KWM

Kingsview Wealth Management Grants Pass, Oregon $7.33B AUM 16.07% 1-Year Est. Return

FFASIA

FIG FINANCIAL ADVISORY SERVICES INC /ADV Oklahoma City, Oklahoma $171M AUM 27.06% 1-Year Est. Return

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ken Griffin's MAMB Position: Q1 2026 in Review

Ken Griffin opened a new position in Monarch Ambassador Income Index ETF (MAMB) in Q1 2026: 10,368 shares worth $250K. The stake represents ﹤0.01% of the portfolio and ranks #10912 among its holdings. This is a return to the name: Ken Griffin previously reported a position in MAMB as recently as Q3 2025.

Ken Griffin first reported a position in MAMB in Q2 2021 and has held it in 11 quarters since. The position peaked at $510K in Q4 2024. 9 funds tracked by Wall St. Rank hold MAMB as of Q1 2026.

Ken Griffin held 10,368 shares of Monarch Ambassador Income Index ETF worth $250K as of Q1 2026.
Monarch Ambassador Income Index ETF was a new Ken Griffin position in Q1 2026.
Monarch Ambassador Income Index ETF made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #10912 holding.
Ken Griffin first reported a position in Monarch Ambassador Income Index ETF in Q2 2021 and has held it in 11 quarters since.
Ken Griffin's Monarch Ambassador Income Index ETF position peaked at $510K in Q4 2024.
9 funds tracked by Wall St. Rank held Monarch Ambassador Income Index ETF as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.