Rosenbaum JAY D. is based out of Boston. Their last reported 13F filing for Q4 2023 included $38,705,132 in managed 13F securities
and a top 10 holdings concentration of 46.35%. Rosenbaum JAY D.'s largest holding is NET Power Inc with shares held of 500,000. Whalewisdom has at least 39 13F filings
2023-12-31
Top Buys (13F)
| Name | % Change |
|---|---|
| NPWR NET Power Inc | 13.05% |
| AVLV Avantis U.S. Large C | 2.36% |
| AVGO Broadcom Ltd. (Avago | 2.04% |
| MMC Marsh & McLennan Com | 1.29% |
| MS Morgan Stanley | 0.92% |
2023-12-31
Top Sells (13F)
| Name | % Change |
|---|---|
| AAPL Apple Inc | 2% |
| VMW Vmware Inc | 1.98% |
| TRV Travelers Companies, | 1.53% |
| SPY SPDR S&P 500 ETF TRU | 1.24% |
| DIS Walt Disney Co. (The | 1.01% |
2023-12-31
13F Holdings Summary
| Name | $ Change |
|---|---|
| NPWR NET Power Inc | 13.05% |
| MSFT Microsoft Corp. | 7.84% |
| AAPL Apple Inc | 5.52% |
| AMZN Amazon.com Inc. | 4.88% |
| GOOG Alphabet Inc. Class | 3.18% |
2023-12-31
13F Activity
| Market Value | $38.7m, Prior: $59.7m |
| New Purchases | 6 stocks |
| Added To | 1 stocks |
| Sold out of | 15 stocks |
| Reduced holdings in | 46 stocks |
| Top 10 Holdings % | 46.35% |
| Turnover %[1] | 39.62% |
| Turnover Alt %[2] | 20.38% |
| Time Held Top 20 | 10.25 quarters |
| Time Held Top 10 | 11.5 quarters |
| Time Held All | 17.04 quarters |
[1]: Turnover is calculated by taking the # of new holdings (initial purchases) + the # of positions sold out of (not just reduced) divided by the total # of holdings for the quarter.
[2]: Alt Turnover is calculated by taking either the total MV of new purchases or the MV of securities sold, whichever is less, divided by the total MV of the fund.
2023-12-31
13F Sector Allocation Over Time
2023-12-31
Analysis
Top 20 equal-weighted holdings. Performance numbers calculated through 2023-12-31