Friends of the Cornell Lab of Ornithology, Inc.

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed August 14, 2026), Friends of the Cornell Lab of Ornithology, Inc. reported 5 stock positions worth $105.9 million. Its top holding was SS SPDR S&P 500 ETF Trust-US (SPY) at 32.4% of the portfolio, followed by iShares Russell 2000 ETF (IWM, 23.7%) and Berkshire Hathaway Class A (BRK.A, 20.3%). Compared with Q4 2025, it added to 4. The biggest buy was Vanguard Ftse Developed ETF (VEA, shares +5%).

Most Recent 13F
Q2 2026
Location
Riverside, CT
CIK
0002145869
Portfolio Value
$105.9M (Q1 2026)
SEC Filing
0001140361-26-032990 ↗ filed Aug 14, 2026

Holdings Value

0$50.0M$100.0M$150.0M Q4 2025: $104.2M Q4 2025 Q1 2026: $105.9M $105.9M Q1 2026 Q2 2026: $123.8M Q2 2026

Holdings 5 stocks · $105.9M
SPY SS SPDR S&P 500 ETF Trust-US 32.41% 52,782 $34.3M Add +4.3%
IWM iShares Russell 2000 ETF 23.66% 101,032 $25.1M Add +4.2%
BRK.A Berkshire Hathaway Inc. Class A 20.34% 30 $21.5M No change
VEA Vanguard Ftse Developed ETF 16.14% 266,651 $17.1M Add +4.5%
EEM iShares MSCI Emerging Market 7.45% 138,872 $7.9M Add +4.1%

Portfolio Sells Q4 2025 → Q1 2026
None this quarter.

Portfolio Buys Q4 2025 → Q1 2026
VEA Vanguard Ftse Developed ETF Add +4.5% 16.14% +0.85
IWM iShares Russell 2000 ETF Add +4.2% 23.66% +0.76
EEM iShares MSCI Emerging Market Add +4.1% 7.45% +0.45
SPY SS SPDR S&P 500 ETF Trust-US Add +4.3% 32.41% −0.67

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 5$123.8MSPY, IWM, BRK.A, VEA, EEM
Q1 2026 5$105.9MSPY, IWM, BRK.A, VEA, EEM
Q4 2025 5$104.2MSPY, IWM, BRK.A, VEA, EEM