Marshall Wace’s Spectral AI MDAI Stock Holding History

Marshall Wace’s Portfolio MDAI Stock Details MDAI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.43M	Buy	+827,454	New	+$1.63M	﹤0.01%	2026
2025 Q4	–	Sell	-145,482	Closed	-$332K	–	3259
2025 Q3	$332K	Buy	145,482 +103,441	+246%	+$239K	﹤0.01%	2387
2025 Q2	$104K	Buy	+42,041	New	+$64.8K	﹤0.01%	2537
2022 Q4	–	Sell	-1,226,155	Closed	-$12.1M	–	3218
2022 Q3	$12.1M	Hold	1,226,155	–	–	0.03%	753
2022 Q2	$12M	Hold	1,226,155	–	–	0.02%	744
2022 Q1	$12M	Hold	1,226,155	–	–	0.02%	764
2021 Q4	$12M	Buy	1,226,155 +110,000	+10%	+$1.08M	0.02%	739
2021 Q3	$10.8M	Buy	1,116,155 +145,100	+15%	+$1.41M	0.05%	511
2021 Q2	$9.42M	Buy	+971,055	New	+$9.43M	0.04%	516

Other funds holding MDAI

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Highlander Partners Dallas, Texas $298M AUM 53.88% 1-Year Est. Return

BCM

Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

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

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

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

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

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

UOTTAIMCU

University of Texas/Texas AM Investment Management Co (UTIMCO) Austin, Texas $863M AUM 30.35% 1-Year Est. Return

Marshall Wace's MDAI Position: Q2 2026 in Review

Marshall Wace opened a new position in Spectral AI (MDAI) in Q2 2026: 827,454 shares worth $1.43M. The stake represents ﹤0.01% of the portfolio and ranks #2026 among its holdings. This is a return to the name: Marshall Wace previously reported a position in MDAI as recently as Q3 2025.

Marshall Wace first reported a position in MDAI in Q2 2021 and has held it in 9 quarters since. The position peaked at $12.1M in Q3 2022. 34 funds tracked by Wall St. Rank hold MDAI as of Q2 2026.

Marshall Wace held 827,454 shares of Spectral AI worth $1.43M as of Q2 2026.
Spectral AI was a new Marshall Wace position in Q2 2026.
Spectral AI made up ﹤0.01% of Marshall Wace's portfolio in Q2 2026, its #2026 holding.
Marshall Wace first reported a position in Spectral AI in Q2 2021 and has held it in 9 quarters since.
Marshall Wace's Spectral AI position peaked at $12.1M in Q3 2022.
34 funds tracked by Wall St. Rank held Spectral AI as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.