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Super Investors Oriental Harbor Investment Master Fund
OH

Oriental Harbor Investment Master Fund

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$1.47B
Positions
13
Quarter ended
September 30, 2026
Filed
October 22, 2026

Reported portfolio value by quarter (9 quarters reported)

$1.65B $868M
Q3 24 Q1 25 Q3 25 Q1 26 Q3 26

$969M in Q3 2024 → $1.47B now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Alphabet Inc 26.9% Added 11% 1,160,244 $395M
Nvidia Corporation 19.2% Added 14% 1,232,505 $281M
Intel Corp 14.4% Trimmed 4.9% 1,758,128 $211M
Micron Technology Inc 10.9% Added 2.2% 150,893 $161M
Sandisk Corp 9.3% Added 1.9% 78,759 $137M
Apple Inc 6.2% New 274,351 $91.4M
TS Taiwan Semiconductor Manufac 4.3% Added 0.3% 137,674 $62.8M
Advanced Micro Devices Inc 3.8% Trimmed 64% 91,594 $56M
Amazon Com Inc 2.4% Added 135% 140,992 $35.1M
SE Space Exploration Techn Corp 1.1% New 105,488 $15.9M
Meta Platforms Inc 0.8% Added 6694% 16,374 $11.9M
LH Lumentum Hldgs Inc 0.6% Trimmed 62% 9,804 $9.52M
Broadcom Inc 0.0% Trimmed 99% 364 $128K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q3 2026

quarter ended September 30, 2026 · filed October 22, 2026

Company Action Shares changed Value of change % of portfolio
Marvell Technology Inc Exited −439,119 −$131M —
Advanced Micro Devices Inc Trimmed −159,843 −$97.8M 3.8%
Apple Inc New +274,351 +$91.4M 6.2%
Arm Holdings PLC Exited −150,573 −$53.4M —
Alphabet Inc Added +110,591 +$37.7M 26.9%
Nvidia Corporation Added +148,678 +$34M 19.2%
Broadcom Inc Trimmed −65,583 −$23M —
Amazon Com Inc Added +81,095 +$20.2M 2.4%
SE Space Exploration Techn Corp New +105,488 +$15.9M 1.1%
LH Lumentum Hldgs Inc Trimmed −16,318 −$15.8M 0.6%

Showing the 10 largest of 15 changes.

Q2 2026

quarter ended June 30, 2026 · filed August 11, 2026

Company Action Shares changed Value of change % of portfolio
Intel Corp New +1,849,390 +$258M 15.7%
Sandisk Corp New +77,276 +$176M 10.7%
Advanced Micro Devices Inc New +251,437 +$146M 8.9%
Marvell Technology Inc New +439,119 +$131M 7.9%
Apple Inc Exited −344,276 −$87.4M —
Micron Technology Inc Added +74,557 +$86.1M 10.3%
PT Proshares Tr Exited −1,961,664 −$81.8M —
Alphabet Inc Exited −277,056 −$79.7M —
Meta Platforms Inc Trimmed −136,531 −$76.9M —
Tesla Inc Exited −199,446 −$74.1M —

Showing the 10 largest of 19 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 28, 2026

Company Action Shares changed Value of change % of portfolio
BM Bank Montreal Que Exited −4,193,340 −$106M —
Microsoft Corp Exited −193,527 −$93.6M —
Alphabet Inc New +277,056 +$79.7M 7.0%
TS Taiwan Semiconductor Manufac New +209,719 +$70.9M 6.3%
Alphabet Inc Trimmed −88,589 −$25.4M 30.5%
Micron Technology Inc New +73,030 +$24.7M 2.2%
PT Proshares Tr Trimmed −439,976 −$18.3M 7.2%
Circle Internet Group Inc New +31,714 +$3.03M 0.3%
Nvidia Corporation Added +14,184 +$2.47M 19.8%
Apple Inc Added +2,728 +$692K 7.7%

Showing the 10 largest of 13 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 27, 2026

Company Action Shares changed Value of change % of portfolio
Alphabet Inc Added +373,161 +$117M 30.9%
PT Proshares Tr Added +1,200,820 +$63.3M 9.6%
Coinbase Global Inc Exited −156,667 −$52.9M —
AG Alibaba Group Hldg Ltd Exited −221,003 −$39.5M —
BM Bank Montreal Que Trimmed −766,600 −$19.4M 8.1%
DS Direxion Shs ETF Tr Added +177,587 +$17.2M 2.4%
Netflix Inc Exited −12,184 −$14.6M —
Astera Labs Inc Exited −64,486 −$12.6M —
BI Bitmine Immersion Tecnologie Exited −185,869 −$9.65M —
Broadcom Inc Exited −29,001 −$9.57M —

Showing the 10 largest of 16 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 14, 2025

Company Action Shares changed Value of change % of portfolio
AG Alibaba Group Hldg Ltd New +221,003 +$39.5M 3.1%
Amazon Com Inc Trimmed −179,810 −$39.5M 3.0%
Netflix Inc Trimmed −30,576 −$36.7M 1.1%
Astera Labs Inc New +64,486 +$12.6M 1.0%
BI Bitmine Immersion Tecnologie New +185,869 +$9.65M 0.7%
Broadcom Inc New +29,001 +$9.57M 0.7%
DS Direxion Shs ETF Tr New +151,010 +$9.54M 0.7%
GE Graniteshares ETF Tr Exited −121,294 −$8.54M —
BM Bank Montreal Que Trimmed −242,066 −$7.06M 11.2%
PT Proshares Tr Trimmed −59,274 −$6.13M 9.6%

Showing the 10 largest of 18 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 29, 2025

Company Action Shares changed Value of change % of portfolio
BM Bank Montreal Que New +5,202,006 +$129M 11.5%
BM Bank Montreal Medium Exited −226,992 −$81.7M —
Tesla Inc New +198,192 +$63M 5.6%
Netflix Inc New +42,760 +$57.3M 5.1%
Coinbase Global Inc New +156,865 +$55M 4.9%
Alphabet Inc Added +267,164 +$47.4M 14.5%
Microsoft Corp Trimmed −91,570 −$45.5M 8.5%
Amazon Com Inc Trimmed −196,264 −$43.1M 7.0%
Apple Inc Trimmed −178,369 −$36.6M 6.2%
Meta Platforms Inc Trimmed −45,486 −$33.6M 8.9%

Showing the 10 largest of 14 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 19, 2025

Company Action Shares changed Value of change % of portfolio
Tesla Inc Exited −121,521 −$49.1M —
Amazon Com Inc Added +228,284 +$43.4M 12.2%
Palantir Technologies Inc Exited −442,942 −$33.5M —
Apple Inc Added +141,045 +$31.3M 13.2%
Alphabet Inc Added +181,235 +$28.3M 11.8%
PT Proshares Tr Added +486,506 +$27.8M 10.0%
TS Taiwan Semiconductor Mfg Ltd Trimmed −157,945 −$26.2M 0.2%
Microsoft Corp Added +57,318 +$21.5M 12.3%
BM Bank Montreal Medium Added +34,512 +$12.4M 9.4%
Soundhound Ai Inc Exited −451,794 −$8.96M —

Showing the 10 largest of 14 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 08, 2025

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Trimmed −676,043 −$90.8M 19.0%
Palantir Technologies Inc New +442,942 +$33.5M 3.4%
TS Taiwan Semiconductor Mfg Ltd New +165,797 +$32.7M 3.3%
Tesla Inc Added +65,335 +$26.4M 4.9%
BM Bank Montreal Medium Trimmed −15,971 −$9.32M 11.3%
Soundhound Ai Inc New +451,794 +$8.96M 0.9%

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