Mariner’s Tempus AI TEM Stock Holding History

Mariner’s Portfolio TEM Stock Details TEM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-68,858	Closed	-$4.06M	–	3877
2025 Q4	$4.06M	Sell	68,858 -345,961	-83%	-$27.1M	﹤0.01%	1100
2025 Q3	$33.5M	Buy	414,819 +5,476	+1%	+$384K	0.04%	315
2025 Q2	$26M	Sell	409,343 -197,135	-33%	-$11.3M	0.04%	352
2025 Q1	$29.3M	Sell	606,478 -317,308	-34%	-$17.1M	0.05%	292
2024 Q4	$31.2M	Buy	+923,786	New	+$45.7M	0.05%	280

Other funds holding TEM

AIM

ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return

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

Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

GWMR

GC Wealth Management RIA Cambridge, Massachusetts $1.73B AUM 16.14% 1-Year Est. Return

SoftBank Group Tokyo, Japan $18.2B AUM 177.65% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

NAMA

Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return

Mariner's TEM Position: Q1 2026 in Review

Mariner sold out of Tempus AI (TEM) in Q1 2026, closing a stake of 68,858 shares — an estimated $4.06M sold.

Mariner first reported a position in TEM in Q4 2024 and held it in 5 quarters. The position peaked at $33.5M in Q3 2025. 427 funds tracked by Wall St. Rank hold TEM as of Q1 2026.

Mariner reported no remaining Tempus AI position as of Q1 2026 after selling out during the quarter.
Mariner sold 68,858 Tempus AI shares in Q1 2026, an estimated $4.06M.
Mariner first reported a position in Tempus AI in Q4 2024 and held it in 5 quarters.
Mariner's Tempus AI position peaked at $33.5M in Q3 2025.
427 funds tracked by Wall St. Rank held Tempus AI as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.