Mariner
ONT

Mariner’s Onterris Inc ONT Stock Holding History

Mariner’s Portfolio ONT Stock Details ONT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$490K Sell
24,257
-14,844
-38% -$277K ﹤0.01% 2474
2026
Q1 		$856K Sell
39,101
-2,596
-6% -$62.3K ﹤0.01% 2081
2025
Q4 		$1.04M Buy
41,697
+22,090
+113% +$584K ﹤0.01% 1931
2025
Q3 		$538K Buy
19,607
+2,007
+11% +$52.5K ﹤0.01% 2368
2025
Q2 		$385K Buy
+17,600
New +$316K ﹤0.01% 2526

Other funds holding ONT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
NAMI
Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
CM
Corvex Management New York $3.27B AUM 38.53% 1-Year Est. Return
AllianceBernstein
AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $550B AUM 43.33% 1-Year Est. Return
Nomura Holdings
Nomura Holdings Tokyo, Japan $85.4B AUM 91.09% 1-Year Est. Return

Mariner's ONT Position: Q2 2026 in Review

Mariner reduced its Onterris Inc (ONT) stake by 38% in Q2 2026, selling an estimated $277K and leaving 24,257 shares worth $490K. The position accounts for ﹤0.01% of the portfolio, ranked #2474.

Mariner first reported a position in ONT in Q2 2025 and has held it in 5 quarters since. The position peaked at $1.04M in Q4 2025. 157 funds tracked by Wall St. Rank hold ONT as of Q2 2026.

  • Mariner held 24,257 shares of Onterris Inc worth $490K as of Q2 2026.
  • Mariner sold 14,844 Onterris Inc shares in Q2 2026, an estimated $277K.
  • Onterris Inc made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2474 holding.
  • Mariner first reported a position in Onterris Inc in Q2 2025 and has held it in 5 quarters since.
  • Mariner's Onterris Inc position peaked at $1.04M in Q4 2025.
  • 157 funds tracked by Wall St. Rank held Onterris Inc as of Q2 2026.

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