Mariner’s On Holding ONON Stock Holding History

Mariner’s Portfolio ONON Stock Details ONON Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.08M	Sell	30,356 -22,916	-43%	-$838K	﹤0.01%	1892
2026 Q1	$1.81M	Sell	53,272 -1,315	-2%	-$57.4K	﹤0.01%	1574
2025 Q4	$2.54M	Buy	54,587 +6,025	+12%	+$260K	﹤0.01%	1361
2025 Q3	$2.06M	Buy	48,562 +4,103	+9%	+$195K	﹤0.01%	1414
2025 Q2	$2.31M	Buy	44,459 +1,621	+4%	+$82.6K	﹤0.01%	1246
2025 Q1	$1.88M	Buy	42,838 +1,232	+3%	+$64.8K	﹤0.01%	1278
2024 Q4	$2.28M	Sell	41,606 -623	-1%	-$33K	﹤0.01%	1147
2024 Q3	$2.12M	Sell	42,229 -1,183	-3%	-$50.8K	﹤0.01%	1157
2024 Q2	$1.68M	Sell	43,412 -4,611	-10%	-$168K	﹤0.01%	1198
2024 Q1	$1.7M	Sell	48,023 -4,368	-8%	-$133K	﹤0.01%	1200
2023 Q4	$1.41M	Sell	52,391 -10,923	-17%	-$298K	﹤0.01%	1225
2023 Q3	$1.76M	Buy	63,314 +14,957	+31%	+$473K	﹤0.01%	1027
2023 Q2	$1.6M	Buy	+48,357	New	+$1.47M	﹤0.01%	1064

Other funds holding ONON

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return

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

LPC

Lone Pine Capital Greenwich, Connecticut $16.4B AUM 99.7% 1-Year Est. Return

PPI

Platinum Paramount Investment Nassau $704M AUM

SIIL

Sinvest Investments II Ltd Nassau, New Providence $298M AUM

Sands Capital Management Arlington, Virginia $26.9B AUM 34.44% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

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

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

Mariner's ONON Position: Q2 2026 in Review

Mariner reduced its On Holding (ONON) stake by 43% in Q2 2026, selling an estimated $838K and leaving 30,356 shares worth $1.08M. The position accounts for ﹤0.01% of the portfolio, ranked #1892.

Mariner first reported a position in ONON in Q2 2023 and has held it in 13 quarters since. The position peaked at $2.54M in Q4 2025. 492 funds tracked by Wall St. Rank hold ONON as of Q2 2026.

Mariner held 30,356 shares of On Holding worth $1.08M as of Q2 2026.
Mariner sold 22,916 On Holding shares in Q2 2026, an estimated $838K.
On Holding made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1892 holding.
Mariner first reported a position in On Holding in Q2 2023 and has held it in 13 quarters since.
Mariner's On Holding position peaked at $2.54M in Q4 2025.
492 funds tracked by Wall St. Rank held On Holding as of Q2 2026.

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