Hirtle & Co., LLC is an SEC-registered investment adviser based in West Conshohocken, PA that reports managing 3 hedge funds on Form ADV. It reports $25.4 billion in regulatory assets under management. Its private funds, of all types, hold $117.9 million in gross assets. Over a longer period they returned an estimated +12.7% from Q2 2026 to Q2 2026, compared with +14.8% for the S&P 500, based on 13F filings.
- Regulatory assets under management
- $25.4 billionForm ADV Item 5.F
- Gross assets of private funds
- $117.9 millionAll private fund types, Form ADV
- Hedge funds managed
- 311 private funds in total
- Employees
- 94Form ADV Item 5.A
- Registration
- SEC-registered adviserCRD 105403
- Latest Form ADV
- 03/31/2026Disciplinary disclosures: none reported
Estimated 13F portfolio performance
Estimated by AltMountain, derived from the firm’s public Form 13F filings. Not reported by the firm and not the return of any fund.
| Quarter | Est. 13F return | S&P 500 |
|---|---|---|
| Q2 2026 | +12.7% | +14.8% |
Estimate of the firm's disclosed long U.S. stock portfolio from its quarterly 13F filings, holding each quarter-end portfolio to the next quarter-end at prices implied by all 13F filers. It is a price return before dividends and fees, ignores shorts, options, bonds, cash and trading within the quarter, and is not the return of any fund. Disclosures
Manager of this firm? Report your fund’s actual net return, or email hello@altmountain.com to correct or remove this estimate. Removal requests from the firm are honored.
13F holdings as of Jun 30, 2026
The 50 largest of 99 share positions ($2,859,041,806) reported by Hirtle & Co., LLC on Form 13F for the quarter ended Jun 30, 2026, filed Aug 14, 2026. Shown as filed with the SEC. Original filing on SEC.gov ↗
| Stock | Value | % of 13F portfolio | Shares | Shares vs prior quarter |
|---|---|---|---|---|
| State STR SPDR S&P 500 ETF T | $736,076,254 | 25.75% | 985,680 | -1.16% |
| Ishares TR | $387,138,129 | 13.54% | 4,008,471 | +1.67% |
| Ishares TR | $333,649,966 | 11.67% | 445,526 | -1.44% |
| Ishares TR | $205,744,832 | 7.20% | 1,980,601 | -0.94% |
| Ishares Inc | $186,384,118 | 6.52% | 2,249,929 | -1.24% |
| Vanguard Tax-managed FDS | $165,586,639 | 5.79% | 2,324,023 | +1.03% |
| Vanguard Index FDS | $161,852,271 | 5.66% | 235,658 | -1.33% |
| Ishares TR | $129,114,708 | 4.52% | 1,887,366 | -0.78% |
| Vanguard Index FDS | $80,108,849 | 2.80% | 216,487 | +0.62% |
| Vanguard Intl Equity Index F | $79,479,026 | 2.78% | 1,331,530 | -11.41% |
| Vanguard Index FDS | $73,956,186 | 2.59% | 858,558 | +18.27% |
| Vanguard Index FDS | $63,952,212 | 2.24% | 293,453 | -2.16% |
| Ishares TR | $45,475,027 | 1.59% | 366,232 | -0.17% |
| Vanguard Scottsdale FDS | $35,800,672 | 1.25% | 105,694 | +11.81% |
| Alphabet Inc | $20,872,195 | 0.73% | 58,405 | -12.72% |
| Altria Group Inc | $17,173,602 | 0.60% | 238,688 | +9.17% |
| Vanguard Intl Equity Index F | $17,005,347 | 0.59% | 192,064 | +0.39% |
| Philip Morris Intl Inc | $14,794,458 | 0.52% | 81,778 | +10.36% |
| Ishares TR | $8,487,232 | 0.30% | 35,009 | -53.21% |
| Ishares TR | $7,157,651 | 0.25% | 17,479 | -0.66% |
| Apple Inc | $6,524,200 | 0.23% | 22,547 | +4.46% |
| Invesco Exchange Traded FD T | $6,304,707 | 0.22% | 116,689 | Unchanged |
| Global X FDS | $5,925,329 | 0.21% | 149,300 | Unchanged |
| SPDR Index SHS FDS | $5,563,409 | 0.19% | 110,407 | Unchanged |
| Taiwan Semiconductor Manufac | $4,498,709 | 0.16% | 9,420 | Unchanged |
| Ishares TR | $4,118,611 | 0.14% | 29,947 | +0.54% |
| Alphabet Inc | $3,343,915 | 0.12% | 9,464 | -2.22% |
| Ishares TR | $2,820,751 | 0.10% | 17,970 | -52.54% |
| Global X FDS | $2,677,745 | 0.09% | 30,257 | Unchanged |
| Ishares TR | $2,546,095 | 0.09% | 33,019 | Unchanged |
| Ishares TR | $2,463,089 | 0.09% | 8,198 | -23.97% |
| SPDR Index SHS FDS | $2,448,417 | 0.09% | 47,285 | Unchanged |
| Ishares Inc | $2,422,669 | 0.08% | 23,682 | -16.10% |
| Ishares TR | $2,149,804 | 0.08% | 9,468 | Unchanged |
| Ishares TR | $1,671,797 | 0.06% | 35,627 | +47.23% |
| Ishares Inc | $1,559,486 | 0.05% | 21,287 | -0.13% |
| TCW ETF Trust | $1,491,026 | 0.05% | 16,911 | Unchanged |
| Marvell Technology Inc | $1,225,222 | 0.04% | 4,113 | New |
| Vanguard Index FDS | $988,171 | 0.03% | 3,260 | -0.43% |
| Jabil Inc | $961,002 | 0.03% | 2,493 | +207.78% |
| Ge Aerospace | $862,569 | 0.03% | 2,308 | Unchanged |
| Microsoft Corp | $857,573 | 0.03% | 2,299 | -13.54% |
| Vanguard Scottsdale FDS | $845,377 | 0.03% | 7,952 | Unchanged |
| Vanguard Index FDS | $812,808 | 0.03% | 8,429 | +13.00% |
| SPDR Series Trust | $807,656 | 0.03% | 13,286 | Unchanged |
| Coca Cola Co | $796,446 | 0.03% | 9,800 | Unchanged |
| Ishares Gold TR | $729,276 | 0.03% | 9,658 | -15.67% |
| Vanguard World FD | $722,202 | 0.03% | 2,004 | Unchanged |
| Ishares TR | $719,564 | 0.03% | 3,253 | -12.53% |
| SPDR Gold TR | $710,973 | 0.02% | 1,930 | Unchanged |
Changes since Mar 31, 2026
Comparing the share counts in the two quarter-end filings: 20 new positions, 6 sold out, 15 increased, 23 reduced and 41 unchanged.
New positions
| Stock | Value | Shares |
|---|---|---|
| Marvell Technology Inc | $1,225,222 | 4,113 |
| Palo Alto Networks Inc | $625,090 | 1,833 |
| State STR SPDR S&P Midcap 40 | $601,356 | 855 |
| Arista Networks Inc | $595,769 | 3,507 |
| Schwab Strategic TR | $586,686 | 21,180 |
| Ubs Group AG | $494,906 | 9,986 |
| Cadence Design System Inc | $442,502 | 1,179 |
| US Bancorp | $372,185 | 6,162 |
| Hyatt Hotels Corp | $371,591 | 1,917 |
| Texas Roadhouse Inc | $331,003 | 1,713 |
| Enbridge Inc | $270,291 | 4,986 |
| United Parcel Svcs Inc | $263,160 | 2,448 |
| L3harris Technologies Inc | $248,454 | 855 |
| Regeneron Pharmaceuticals | $243,181 | 390 |
| Capital One Finl Corp | $242,750 | 1,210 |
| Nasdaq Inc | $231,731 | 2,940 |
| Zions Bancorporation Natl As | $230,818 | 3,336 |
| Invesco Exchange Traded FD T | $225,422 | 4,042 |
| Iqvia Hldgs Inc | $223,749 | 1,158 |
| Wells Fargo & Co | $219,988 | 2,662 |
Sold out
| Stock | Value at Mar 31, 2026 | Shares held then |
|---|---|---|
| Select Sector SPDR TR | $9,286,425 | 185,840 |
| Thermon Group Hldgs Inc | $3,780,000 | 75,000 |
| Thermo Fisher Scientific Inc | $1,003,704 | 2,042 |
| Danaher Corp Del | $951,034 | 5,016 |
| Novo-nordisk A S | $715,045 | 19,457 |
| Accenture PLC Ireland | $223,869 | 1,129 |
Largest increases
| Stock | Change in shares | Change | Value now | Shares now |
|---|---|---|---|---|
| Vanguard Index FDS | +132,653 | +18.27% | $73,956,186 | 858,558 |
| Ishares TR | +65,967 | +1.67% | $387,138,129 | 4,008,471 |
| Vanguard Scottsdale FDS | +11,163 | +11.81% | $35,800,672 | 105,694 |
| Vanguard Tax-managed FDS | +23,742 | +1.03% | $165,586,639 | 2,324,023 |
| Altria Group Inc | +20,058 | +9.17% | $17,173,602 | 238,688 |
| Philip Morris Intl Inc | +7,677 | +10.36% | $14,794,458 | 81,778 |
| Jabil Inc | +1,683 | +207.78% | $961,002 | 2,493 |
| Ishares TR | +11,428 | +47.23% | $1,671,797 | 35,627 |
| Vanguard Index FDS | +1,332 | +0.62% | $80,108,849 | 216,487 |
| Apple Inc | +963 | +4.46% | $6,524,200 | 22,547 |
| Nvidia Corporation | +1,272 | +81.28% | $567,655 | 2,837 |
| Bank Of Amer Corp | +3,355 | +45.97% | $607,065 | 10,654 |
| Vanguard Index FDS | +970 | +13.00% | $812,808 | 8,429 |
| Vanguard Intl Equity Index F | +753 | +0.39% | $17,005,347 | 192,064 |
| Ishares TR | +162 | +0.54% | $4,118,611 | 29,947 |
Largest reductions
| Stock | Change in shares | Change | Value now | Shares now |
|---|---|---|---|---|
| Vanguard Intl Equity Index F | -171,495 | -11.41% | $79,479,026 | 1,331,530 |
| Ishares TR | -39,807 | -53.21% | $8,487,232 | 35,009 |
| State STR SPDR S&P 500 ETF T | -11,590 | -1.16% | $736,076,254 | 985,680 |
| Ishares TR | -6,502 | -1.44% | $333,649,966 | 445,526 |
| Ishares TR | -19,892 | -52.54% | $2,820,751 | 17,970 |
| Alphabet Inc | -8,511 | -12.72% | $20,872,195 | 58,405 |
| Ishares Inc | -28,344 | -1.24% | $186,384,118 | 2,249,929 |
| Vanguard Index FDS | -3,180 | -1.33% | $161,852,271 | 235,658 |
| Ishares TR | -18,724 | -0.94% | $205,744,832 | 1,980,601 |
| Vanguard Index FDS | -6,493 | -2.16% | $63,952,212 | 293,453 |
| Ishares TR | -10,367 | -71.84% | $448,340 | 4,064 |
| Ishares TR | -14,871 | -0.78% | $129,114,708 | 1,887,366 |
| Ishares TR | -2,585 | -23.97% | $2,463,089 | 8,198 |
| Ishares Inc | -4,546 | -16.10% | $2,422,669 | 23,682 |
| Ishares Gold TR | -1,794 | -15.67% | $729,276 | 9,658 |
| Microsoft Corp | -360 | -13.54% | $857,573 | 2,299 |
| Ishares TR | -466 | -12.53% | $719,564 | 3,253 |
| Ishares TR | -624 | -0.17% | $45,475,027 | 366,232 |
| Alphabet Inc | -215 | -2.22% | $3,343,915 | 9,464 |
| Ishares TR | -116 | -0.66% | $7,157,651 | 17,479 |
Each list shows up to 20 positions, largest first by dollar amount. Changes compare two quarter-end snapshots, with the earlier share count adjusted for stock splits AltMountain detected. They do not show when, or at what price, anything was bought or sold.
From public Form 13F filings, not verified. Form 13F is filed up to 45 days after the quarter ends, so positions may have changed. It lists only certain long positions in U.S.-listed stocks and exchange-traded funds; options are not shown here, and short positions, most bonds, cash, non-U.S. securities and private investments are not reported at all, so a holding may be one side of a hedge. A filing covers the manager as a whole, not any single fund, and filings contain errors. This is not investment advice or a recommendation to buy or sell any security. Disclosures
Hedge funds filing Form D (3)
Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.
Private funds reported on Form ADV (11)
As reported in the adviser's Form ADV filed Mar 29, 2024. Funds also listed from Form D are shown above.
From SEC filings. Firm data comes from the SEC's Form ADV data as of Oct 2, 2026; performance estimates come from Form 13F. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures