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HARTLINE INVESTMENT CORP/ — 13F Holdings & Portfolio

CIK 945625 · latest 13F-HR filed 2026-07-29

Backtest portfolio

HARTLINE INVESTMENT CORP/ manages $1.15B in 13F-reported U.S. long-equity assets across 115 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are NVDA (10.65%), FLOT (9.62%), BRK.A (7.63%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions and exited 5; 61 existing positions rose in reported value and 20 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$1.15B

Long-equity book

Holdings
115

Distinct positions

Period
2026-06-30

Filed 2026-07-29

Q/Q Activity
+8 / −5 / ↑61 / ↓20

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
NVDA10.6% · -3%FLOT9.6% · +54%BRK.A7.6% · -2%MRVL6.0% · -36%AAPL5.2% · -5%GLW5.1% · -17%VRT4.3% · -24%GOOGL4.0% · -6%AMD3.8% · -34%AMZN2.9% · -2%DELL2.7% · -15%LLY2.6% · +75%TFLO2.3% · +149%MSFT2.1% · -3%MS1.9% · +25%GEV1.8% · +3%WMT1.8% · -1%SCHJ1.6% · +16%NET1.6% · -39%C1.6% · +13%META1.5% · -2%IBM1.1% · +2914%V1.0% · +6%MAR1.0% · -0%BRK.B0.9% · -10%COST0.8% · -0%PLTR0.7% · -12%ETN0.7% · +17%APP0.6% · newNEE0.6% · +8%AMAT0.5% · 0%LOW0.5% · -3%GEHC0.5% · +718%SHOP0.5% · -10%AXP0.5% · +14%STRL0.5% · -12%UBER0.4% · -6%UNP0.4% · 0%PANW0.4% · -30%JPM0.4% · -2%HD0.4% · -2%NOW0.4% · +0%AVGO0.3% · +15%CSCO0.3% · 0%HOOD0.3% · +6%FAST0.3% · 0%ABBV0.2% · -10%VST0.2% · -55%LIN0.2% · 0%GOOG0.2% · 0%XBI0.2% · +6%ENB0.2% · -6%WM0.2% · -15%ITW0.2% · -2%SCHR0.2% · 0%SYK0.2% · 0%AFL0.2% · 0%CEG0.2% · -24%ORLY0.2% · -4%CTAS0.2% · -2%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

3 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 59.2%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 30, 2026.

Assets Under Management
$935.5M
Discretionary
$669.3M
Employees
6
Accounts
455
Address
460 WINNETKA AVENUE
SUITE 5
WINNETKA, IL 60093
Phone
(312) 726-5703
Website
Name Title / Status Ownership Type
Hart, Brian, William ControlPRESIDENT AND CEO
since Aug 2021
75% or moreIndividual
Carroll, Kathryn, DunnCHIEF COMPLIANCE OFFICER
since Jan 2023
Less than 5%Individual
Ownership & leadership changes · 2 filings with changes since Apr 2, 2012

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Jan 5, 2023 filing
  • No longer listedHART, WILLIAM, GEORGE · CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Sep 2009
  • AddedCarroll, Kathryn, Dunn · CHIEF COMPLIANCE OFFICER · Less than 5%
Aug 16, 2021 filing
  • AddedHart, Brian, William · PRESIDENT AND CEO · 75% or more · control person
  • ChangedHART, WILLIAM, GEORGE · title CHIEF COMPLIANCE OFFICER / PRESIDENT → CHIEF COMPLIANCE OFFICER; ownership 75% or more → Less than 5%; no longer a control person
Apr 2, 2012 filing (earliest on record)
  • ListedHART, WILLIAM, GEORGE · CHIEF COMPLIANCE OFFICER / PRESIDENT · 75% or more · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

HARTLINE INVESTMENT CORP/ Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 NVIDIA CORPORATION COM NVDA 67066G104 $122.2M 10.65% 610,744 SH
2 ISHARES FLOATING RATE BOND ETF FLOT 46429B655 $110.5M 9.62% 2,163,813 SH
3 BERKSHIRE HATHAWAY INC DEL CL A BRK.A 084670108 $87.6M 7.63% 117 SH
4 MARVELL TECHNOLOGY INC COM MRVL 573874104 $69.0M 6.01% 231,542 SH
5 APPLE INC COM AAPL 037833100 $59.7M 5.20% 206,288 SH
6 CORNING INC COM GLW 219350105 $58.3M 5.08% 228,151 SH
7 VERTIV HOLDINGS CO COM CL A VRT 92537N108 $48.9M 4.26% 146,071 SH
8 ALPHABET INC CAP STK CL A GOOGL 02079K305 $46.0M 4.01% 128,736 SH
9 ADVANCED MICRO DEVICES INC COM AMD 007903107 $44.1M 3.84% 75,956 SH
10 AMAZON COM INC COM AMZN 023135106 $33.7M 2.93% 141,300 SH
11 DELL TECHNOLOGIES INC CL C DELL 24703L202 $31.2M 2.72% 72,246 SH
12 ELI LILLY & CO COM LLY 532457108 $30.4M 2.65% 25,352 SH
13 ISHARES TREASURY FLOATING RATE BOND ETF TFLO 46434V860 $26.9M 2.34% 530,820 SH
14 MICROSOFT CORP COM MSFT 594918104 $23.9M 2.08% 64,089 SH
15 MORGAN STANLEY COM NEW MS 617446448 $21.7M 1.89% 103,805 SH
16 GE VERNOVA INC COM GEV 36828A101 $20.7M 1.80% 17,609 SH
17 WALMART INC COM WMT 931142103 $20.6M 1.79% 181,480 SH
18 SCHWAB 1-5 YEAR CORPORATE BOND ETF SCHJ 808524714 $18.3M 1.59% 741,444 SH
19 CLOUDFLARE INC CL A COM NET 18915M107 $18.2M 1.58% 74,027 SH
20 CITIGROUP INC COM NEW C 172967424 $17.9M 1.56% 128,093 SH
21 META PLATFORMS INC CL A META 30303M102 $17.6M 1.53% 31,201 SH
22 INTERNATIONAL BUSINESS MACHS COM IBM 459200101 $13.1M 1.14% 46,514 SH
23 VISA INC COM CL A V 92826C839 $11.6M 1.01% 33,685 SH
24 MARRIOTT INTL INC NEW CL A MAR 571903202 $11.2M 0.97% 30,120 SH
25 BERKSHIRE HATHAWAY INC DEL CL B NEW BRK.B 084670702 $10.2M 0.89% 20,348 SH
26 COSTCO WHOLESALE CORPORATION COM COST 22160K105 $8.7M 0.76% 9,327 SH
27 PALANTIR TECHNOLOGIES INC CL A PLTR 69608A108 $8.4M 0.73% 71,932 SH
28 EATON CORP PLC SHS ETN G29183103 $8.3M 0.72% 19,408 SH
29 APPLOVIN CORP COM CL A APP 03831W108 $7.2M 0.62% 13,894 SH
30 NEXTERA ENERGY INC COM NEE 65339F101 $6.6M 0.58% 75,325 SH
31 APPLIED MATLS INC COM AMAT 038222105 $6.1M 0.53% 8,385 SH
32 LOWES COS INC COM LOW 548661107 $6.0M 0.53% 27,438 SH
33 GE HEALTHCARE TECHNOLOGIES INC COMMON STOCK GEHC 36266G107 $5.9M 0.52% 92,747 SH
34 SHOPIFY INC CL A SUB VTG SHS SHOP 82509L107 $5.8M 0.51% 50,921 SH
35 AMERICAN EXPRESS CO COM AXP 025816109 $5.5M 0.48% 16,329 SH
36 STERLING INFRASTRUCTURE INC COM STRL 859241101 $5.3M 0.46% 6,309 SH
37 UBER TECHNOLOGIES INC COM UBER 90353T100 $5.1M 0.45% 70,940 SH
38 UNION PAC CORP COM UNP 907818108 $5.1M 0.44% 18,612 SH
39 PALO ALTO NETWORKS INC COM PANW 697435105 $4.8M 0.42% 14,126 SH
40 JPMORGAN CHASE & CO COM JPM 46625H100 $4.7M 0.41% 14,251 SH
41 HOME DEPOT INC COM HD 437076102 $4.6M 0.40% 13,029 SH
42 SERVICENOW INC COM NOW 81762P102 $4.2M 0.37% 42,432 SH
43 BROADCOM INC COM AVGO 11135F101 $3.3M 0.29% 8,747 SH
44 CISCO SYS INC COM CSCO 17275R102 $3.2M 0.28% 27,232 SH
45 ROBINHOOD MKTS INC COM CL A HOOD 770700102 $3.2M 0.28% 31,532 SH
46 FASTENAL CO COM FAST 311900104 $3.1M 0.27% 64,660 SH
47 ABBVIE INC COM ABBV 00287Y109 $2.8M 0.24% 11,119 SH
48 VISTRA CORP COM VST 92840M102 $2.8M 0.24% 17,380 SH
49 LINDE PLC SHS LIN G54950103 $2.6M 0.23% 4,988 SH
50 ALPHABET INC CAP STK CL C GOOG 02079K107 $2.5M 0.22% 7,177 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-07-29 $1.15B 115 0001754960-26-000662
2026-03-31 2026-04-29 $908.9M 112 0001754960-26-000342
2025-12-31 2026-02-09 $924.7M 109 0001754960-26-000160
Filer Information
Address
460 WINNETKA AVENUE
SUITE 5
WINNETKA, IL 60093
Phone
(312) 726-5703
Filing Manager
HARTLINE INVESTMENT CORP/
WINNETKA, IL
Signatory
Aryn Sands
Agent