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Super Investors HARBOR INVESTMENT ADVISORY, LLC
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HARBOR INVESTMENT ADVISORY, LLC

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

Portfolio value
$1.47B
Positions
1437
Quarter ended
September 30, 2026
Filed
October 13, 2026

Reported portfolio value by quarter (28 quarters reported)

$1.47B $372M
Q4 19 Q2 21 Q4 22 Q2 24 Q4 25 Q3 26

$434M in Q4 2019 → $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
MI Marriott Intl Inc New Cl A 12.9% Trimmed 0.0% 531,857 $189M
AC Apple Inc Com 7.2% Trimmed 0.3% 316,766 $105M
AC Amazon Com Inc Com 3.9% Added 0.9% 231,490 $57.7M
AC Alphabet Inc Cap Stk Cl A 3.9% Trimmed 1.4% 167,535 $57.6M
MC Microsoft Corp Com 3.4% Added 3.9% 97,408 $50M
BH Berkshire Hathaway Inc Del Cl B New 2.1% Trimmed 1.3% 63,200 $31.5M
AC Alphabet Inc Cap Stk Cl C 1.5% Trimmed 2.0% 62,819 $21.4M
NC Nvidia Corporation Com 1.5% Added 17% 93,714 $21.4M
JC Jpmorgan Chase & Co Com 1.3% Added 1.7% 58,740 $19.4M
IC Ishares Core S&P 500 ETF 1.3% Trimmed 0.3% 24,743 $18.9M
VT Vanguard Total Stock Index ETF 1.2% Trimmed 0.0% 47,442 $17.8M
VM Vanguard Morningstar Growth ETF 1.2% Trimmed 3.9% 194,540 $17.5M
VM Vanguard Morningstar Value ETF 1.2% Added 6.7% 79,552 $17.2M
IS Invesco S&P 500 Equal Weight ETF 1.2% Added 12% 81,769 $17M
VS Vanguard S&P 500 ETF 1.1% Added 1.5% 22,299 $15.6M
SG SPDR Gold Minishares Trust Of Beneficial Interest 1.0% Added 1.3% 180,426 $14.8M
MI Mastercard Incorporated Cl A 1.0% Trimmed 0.0% 26,091 $14.4M
VC Visa Inc Com Cl A 1.0% Trimmed 1.8% 39,442 $14.2M
IR Ishares Russell 2000 Value ETF 0.8% Trimmed 4.0% 57,735 $12.1M
EL Eli Lilly & Co Com 0.8% Added 0.0% 10,162 $11.8M
J& Johnson & Johnson Com 0.8% Added 1.0% 42,179 $11.2M
SS State Street SPDR Bloomberg 1-3 Month T-bill ETF 0.8% Added 15% 121,472 $11.1M
SS State Street SPDR S&P 500 ETF 0.7% Added 6.8% 13,798 $10.5M
VM Vanguard Morningstar Mid-cap Value ETF 0.7% Added 3.5% 53,073 $10.4M
MP Meta Platforms Inc Cl A 0.7% Added 0.4% 13,656 $9.9M
SG SPDR Gold Shares 0.7% Trimmed 7.1% 25,915 $9.87M
AC Amgen Inc Com 0.7% Added 1.8% 23,227 $9.79M
BC Broadcom Inc Com 0.7% Added 3.6% 27,405 $9.62M
IC Ishares Core Msci Eafe ETF 0.7% Added 6.0% 99,096 $9.6M
VM Vanguard Morningstar Mid-cap Growth ETF 0.6% Added 1.9% 31,267 $9.13M
CH Crowdstrike Hldgs Inc Cl A 0.6% Added 291% 32,702 $8.66M
IR Ishares Russell Top 200 Growth ETF 0.6% Trimmed 2.9% 28,544 $8.42M
IM Ishares Msci Eafe ETF 0.5% Trimmed 0.0% 76,700 $7.97M
JH Janus Henderson Securitized Income ETF 0.5% Added 11% 156,923 $7.83M
JH Janus Henderson Aaa Clo ETF 0.5% Added 5.6% 151,773 $7.66M
IC Ishares Core Dividend Growth ETF 0.5% Added 1.6% 101,099 $7.62M
VR Vanguard Real Estate ETF 0.5% Added 0.1% 84,399 $7.56M
IQ Invesco Qqq Trust Series I 0.5% Trimmed 0.5% 10,059 $7.44M
BC Blackrock Inc Com 0.5% Trimmed 0.7% 6,999 $7.41M
IR Ishares Russell 1000 Growth ETF 0.5% Trimmed 0.5% 58,169 $7.29M
FA Foliobeyond Alternative Income And Interest Rate Hedge ETF 0.5% Added 16% 188,191 $6.97M
GS Goldman Sachs Group Inc Com 0.5% Added 26% 7,519 $6.77M
BO Bank Of Amer Corp Com 0.5% Added 1.3% 123,094 $6.7M
EH Exxonmobil Holdings Corp Com Shs 0.5% Added 3.7% 41,092 $6.69M
IR Ishares Russell 1000 Value ETF 0.4% Added 0.2% 26,302 $6.52M
DI Dimensional International Small Cap ETF 0.4% Added 0.6% 179,589 $6.51M
IR Ishares Russell 2000 Growth ETF 0.4% Trimmed 4.6% 17,384 $6.2M
IC Ishares Core S&P Mid-cap ETF 0.4% Added 1.3% 86,152 $6.2M
IS Ishares S&P 500 Growth ETF 0.4% Trimmed 0.1% 42,677 $6.07M
WC Walmart Inc Com 0.4% Added 4.6% 58,402 $6.07M
CW Costco Wholesale Corporation Com 0.4% Trimmed 3.5% 6,593 $6M
IR Ishares Russell 1000 ETF 0.4% Trimmed 2.1% 13,735 $5.72M
AM Advanced Micro Devices Inc Com 0.4% Added 11% 8,744 $5.35M
UG Unitedhealth Group Inc Com 0.4% Trimmed 1.7% 14,499 $5.32M
AB American Beacon Glg Natural Resources ETF 0.4% Added 6.1% 107,606 $5.31M
AC Abbvie Inc Com 0.4% Added 0.1% 20,007 $5.23M
VM Vanguard Morningstar Small-cap Growth ETF 0.4% Trimmed 0.5% 15,478 $5.23M
IR Ishares Russell Top 200 Value ETF 0.4% Trimmed 6.5% 47,158 $5.17M
IR Ishares Russell Mid-cap Growth ETF 0.3% Trimmed 1.3% 36,032 $4.96M
IC Ishares Core S&P Small Cap ETF 0.3% Trimmed 0.1% 36,162 $4.92M

Showing top 60 of 1437 positions.

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 13, 2026

Company Action Shares changed Value of change % of portfolio
CH Crowdstrike Hldgs Inc Cl A Added +24,330 +$6.44M 0.6%
NC Nvidia Corporation Com Added +13,315 +$3.04M 1.5%
SE Space Exploration Techn Corp Class A Com Stk New +16,330 +$2.46M 0.2%
SC Sandisk Corp Com Trimmed −1,399 −$2.43M —
VJ Vaneck Junior Gold Miners ETF Trimmed −20,186 −$2.3M 0.3%
MC Microsoft Corp Com Added +3,684 +$1.89M 3.4%
IS Invesco S&P 500 Equal Weight ETF Added +8,723 +$1.81M 1.2%
HI Honeywell Intl Inc Com New +7,401 +$1.56M 0.1%
SS State Street SPDR S&P 500 ETF Trimmed −2,000 −$1.53M —
SS State Street SPDR Bloomberg 1-3 Month T-bill ETF Added +16,064 +$1.47M 0.8%

Showing the 10 largest of 893 changes.

Q2 2026

quarter ended June 30, 2026 · filed July 07, 2026

Company Action Shares changed Value of change % of portfolio
VG Vanguard Growth ETF Added +168,809 +$14.5M 1.2%
EM Exxon Mobil Corp Com Exited −39,345 −$6.68M —
IR Ishares Russell 1000 Growth ETF Added +43,992 +$5.46M 0.5%
EH Exxonmobil Holdings Corp Com Shs New +39,631 +$5.42M 0.4%
KC Kla Corp Com New Added +13,385 +$4.04M 0.3%
GV Ge Vernova Inc Com Trimmed −3,209 −$3.77M 0.2%
HI Honeywell Intl Inc Com Exited −15,018 −$3.39M —
VC Vicor Corp Com Trimmed −6,401 −$2.43M —
GA Ge Aerospace Com New Trimmed −5,263 −$1.97M 0.1%
IC Ishares Core Msci Emerging Markets ETF Added +23,166 +$1.92M 0.2%

Showing the 10 largest of 724 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 23, 2026

Company Action Shares changed Value of change % of portfolio
BH Berkshire Hathaway Inc Del Cl B New Trimmed −172,792 −$82.8M 2.4%
MC Microsoft Corp Com Trimmed −57,096 −$21.1M 2.8%
AC Amazon Com Inc Com Trimmed −78,791 −$16.4M 3.8%
MI Marriott Intl Inc New Cl A Trimmed −32,458 −$10.6M 13.7%
AC Apple Inc Com Trimmed −37,381 −$9.49M 6.4%
AG Alibaba Group Hldg Ltd Sponsored Ads Trimmed −66,049 −$8.29M —
VC Vicor Corp Com Trimmed −29,800 −$4.8M 0.1%
AC Alphabet Inc Cap Stk Cl C Trimmed −14,469 −$4.15M 1.5%
JC Jpmorgan Chase & Co Com Trimmed −13,416 −$3.95M 1.3%
SC Salesforce Inc Com Trimmed −18,499 −$3.45M 0.1%

Showing the 10 largest of 976 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 07, 2026

Company Action Shares changed Value of change % of portfolio
IC Ishares Core S&P 500 ETF Added +6,610 +$4.53M 1.3%
SG SPDR Gold Shares Added +6,740 +$2.67M 0.8%
IC Ishares Core Msci Eafe ETF Added +29,140 +$2.61M 0.6%
GV Ge Vernova Inc Com Added +3,828 +$2.5M 0.3%
VJ Vaneck Junior Gold Miners ETF Added +21,255 +$2.42M 0.4%
GA Ge Aerospace Com New Added +7,820 +$2.41M 0.2%
VS Vanguard Small-cap Growth ETF Added +7,394 +$2.23M 0.3%
AC Apple Inc Com Added +8,009 +$2.07M 7.0%
JH Janus Henderson Securitized Income ETF Added +38,348 +$2M 0.3%
MI Marriott Intl Inc New Cl A Trimmed −5,998 −$1.86M 13.2%

Showing the 10 largest of 803 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 27, 2025

Company Action Shares changed Value of change % of portfolio
MI Marriott Intl Inc New Cl A Added +14,898 +$3.88M 12.3%
ZB Zions Bancorporation N A Com Trimmed −60,734 −$3.44M —
UG Unitedhealth Group Inc Com Trimmed −6,986 −$2.41M 0.6%
VJ Vaneck Junior Gold Miners ETF Added +22,795 +$2.26M 0.3%
FA Foliobeyond Alternative Income And Interest Rate Hedge ETF Added +60,108 +$2.15M 0.2%
JE Jpmorgan Equity Premium Income ETF Trimmed −24,512 −$1.4M 0.3%
SC Servicenow Inc Com Trimmed −1,450 −$1.33M —
AI Avantis International Equity ETF Added +16,160 +$1.28M 0.1%
OC Oracle Corp Com Trimmed −4,489 −$1.26M 0.4%
NC Nvidia Corporation Com Added +6,480 +$1.21M 1.2%

Showing the 10 largest of 667 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 01, 2025

Company Action Shares changed Value of change % of portfolio
IR Ishares Russell Mid-cap Growth ETF Added +15,905 +$2.21M 0.4%
AC Alphabet Inc Cap Stk Cl C Trimmed −12,915 −$2.03M 1.1%
VV Vanguard Value ETF Added +10,065 +$1.78M 0.9%
DI Dimensional International Small Cap ETF Added +57,395 +$1.71M 0.3%
UG Unitedhealth Group Inc Com Trimmed −5,103 −$1.59M 0.8%
IC Ishares Core Dividend Growth ETF Added +20,363 +$1.3M 0.4%
IR Ishares Russell Top 200 Growth ETF Added +4,852 +$1.2M 0.7%
SB SPDR Bloomberg 1-3 Month T-bill ETF Added +10,493 +$963K 0.9%
VG Vanguard Growth ETF Added +2,187 +$959K 1.1%
II Ishares Ibonds Dec 2028 Term Corporate ETF Added +37,345 +$949K 0.2%

Showing the 10 largest of 627 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 09, 2025

Company Action Shares changed Value of change % of portfolio
SB SPDR Bloomberg 1-3 Month T-bill ETF Added +22,170 +$2.03M 0.9%
JH Janus Henderson Aaa Clo ETF Added +34,578 +$1.75M 0.5%
UT Uber Technologies Inc Com Added +22,047 +$1.61M 0.3%
AC Apple Inc Com Trimmed −6,989 −$1.48M 7.3%
IC Ishares Core S&P Small Cap ETF Trimmed −13,914 −$1.45M 0.3%
IS Intuitive Surgical Inc Com New Added +2,749 +$1.36M 0.3%
DI Dimensional International Small Cap ETF New +52,144 +$1.35M 0.1%
IS Invesco S&P 500 Equal Weight ETF Trimmed −6,738 −$1.17M 1.1%
M& Merck & Co Inc Com Trimmed −12,576 −$1.13M 0.2%
UG Unitedhealth Group Inc Com Trimmed −2,118 −$1.11M 1.7%

Showing the 10 largest of 623 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 16, 2025

Company Action Shares changed Value of change % of portfolio
IS Invesco S&P 500 Equal Weight ETF Added +19,651 +$3.44M 1.2%
IC Ishares Core S&P Small Cap ETF Added +20,769 +$2.39M 0.4%
TC Tesla Inc Com Added +4,184 +$1.69M 0.5%
II Ishares Ibonds Dec 2024 Term Corporate ETF Exited −53,008 −$1.34M —
IQ Invesco Qqq Trust Series I Added +2,455 +$1.25M 0.3%
MI Marriott Intl Inc New Cl A Trimmed −4,139 −$1.15M 14.5%
EC Equinix Inc Com Added +1,219 +$1.15M 0.4%
SB SPDR Bloomberg 1-3 Month T-bill ETF Added +11,588 +$1.06M 0.6%
DR Digital Rlty Tr Inc Com Added +5,788 +$1.03M 0.3%
BH Berkshire Hathaway Inc Del Cl B New Added +8,175 +$982K 2.6%

Showing the 10 largest of 597 changes.

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