Hartline Investment Corp.
- Regulatory AUM
- $935M
- Discretionary
- $669M
- Clients
- 266
- Avg AUM / client
- $3.5M
- Accounts
- 455
- Employees
- 6
AUM over time
Reported AUM from Form ADV filings, plotted by filing date · as of Mar 30, 2026
Investments (13F portfolio — 112 positions, $908,925,543)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Nvidia Corporation Com | Stock | $109,846,712 | 629,855 | 12.1% | 11.7% |
| 2 | Berkshire Hathaway Inc Del Cl A | Stock | $85,458,660 | 119 | 9.4% | 9.14% |
| 3 | Ishares Floating Rate Bond Etf | ETF | $71,733,677 | 1,407,923 | 7.89% | 7.67% |
| 4 | Apple Inc Com | Stock | $55,167,415 | 217,374 | 6.07% | 5.9% |
| 5 | Vertiv Holdings Co Com Cl A | Stock | $47,847,750 | 190,948 | 5.26% | 5.11% |
| 6 | Alphabet Inc Cap Stk Cl A | Stock | $39,249,358 | 136,491 | 4.32% | 4.2% |
| 7 | Corning Inc Com | Stock | $37,441,243 | 275,364 | 4.12% | 4.0% |
| 8 | Marvell Technology Inc Com | Stock | $35,761,309 | 361,043 | 3.93% | 3.82% |
| 9 | Amazon Com Inc Com | Stock | $29,928,191 | 143,699 | 3.29% | 3.2% |
| 10 | Cloudflare Inc Cl A Com | Stock | $24,867,478 | 120,517 | 2.74% | 2.66% |
| 11 | Microsoft Corp Com | Stock | $24,438,267 | 66,019 | 2.69% | 2.61% |
| 12 | Advanced Micro Devices Inc Com | Stock | $23,324,470 | 114,656 | 2.57% | 2.49% |
| 13 | Walmart Inc Com | Stock | $22,766,729 | 183,189 | 2.5% | 2.43% |
| 14 | Meta Platforms Inc Cl A | Stock | $18,164,555 | 31,749 | 2.0% | 1.94% |
| 15 | Schwab 1 5 Year Corporate Bond Etf | ETF | $15,832,036 | 640,325 | 1.74% | 1.69% |
| 16 | Ge Vernova Inc Com | Stock | $14,858,504 | 17,022 | 1.63% | 1.59% |
| 17 | Dell Technologies Inc Cl C | Stock | $13,890,650 | 84,632 | 1.53% | 1.48% |
| 18 | Morgan Stanley Com New | Stock | $13,714,770 | 83,337 | 1.51% | 1.47% |
| 19 | Eli Lilly & Co Com | Stock | $13,331,146 | 14,494 | 1.47% | 1.43% |
| 20 | Citigroup Inc Com New | Stock | $12,830,640 | 113,135 | 1.41% | 1.37% |
| 21 | Palantir Technologies Inc Cl A | Stock | $11,917,432 | 81,470 | 1.31% | 1.27% |
| 22 | Berkshire Hathaway Inc Del Cl B New | Stock | $10,893,174 | 22,732 | 1.2% | 1.16% |
| 23 | Ishares Treasury Floating Rate Bond Etf | ETF | $10,803,429 | 213,380 | 1.19% | 1.15% |
| 24 | Marriott Intl Inc New Cl A | Stock | $9,853,311 | 30,126 | 1.08% | 1.05% |
| 25 | Visa Inc Com Cl A | Stock | $9,568,314 | 31,658 | 1.05% | 1.02% |
Top 25 of 112 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 158 | $35.3M | 3.77% |
| High net worth individuals | 90 | $672M | 71.8% |
| Pension and profit sharing plans | 1 | $2.6M | 0.28% |
| Charitable organizations | 17 | $226M | 24.1% |
People (3)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Brian William Hart | President And Ceo | Aug 2021 (5y) | 75% or more | |
| Kathryn Dunn Parker | Chief Compliance Officer | Jan 2023 (4y) | Less than 5% | |
| William George Hart | Registered representative | CFA | Mar 2026 (0y) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/30/2026 | 916 KB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
Services
- • Portfolio management for individuals/small businesses
- • Portfolio management for businesses/institutional clients
Custody
Reported custodians
- Charles Schwab & Co. $600M (64% of AUM) Mar 2026
- J.P. Morgan $178M (19% of AUM) Mar 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 30, 2026.
View current Form ADV (SEC/IAPD) ↗