CIK: 0001661535
Total reported value
$181.8M
Reporting period: 2026-03-31 · Number of holdings: 187
Elefante Mark B disclosed 187 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $181.8M and a quarterly turnover rate of 17.2%.
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Elefante Mark B's disclosed holdings carry a Herfindahl concentration index of 0.032 — mathematically equivalent to about 31 equally-sized positions, well below its 187 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.95), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 2.2 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Trim UNH
-48.6% -$1.3M
Trim MSFT
+19.2% -$684.9K
Trim MKC
-65.6% -$1.3M
Add AMAT
+28.5% $1.7M
Add JNJ
+16.3% $1.7M
Trim GOOGL
+10.3% $156.1K
Showing top 58 holdings (of 187 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 6.62% | -0.66% | +10.28% | |
| 2 | AAPL | Apple INC | Stock-Tech | 5.46% | -0.15% | +16.15% | |
| 3 | NVDA | Nvidia CORP | Stock-Tech | 5.36% | -0.24% | +13.98% | |
| 4 | ADI | Analog Devices INC | Stock-Tech | 4.74% | +0.61% | +9.02% | |
| 5 | TJX | Tjx Companies INC | Stock-Consumer Disc | 4.05% | +0.30% | +15.86% | |
| 6 | MA | Mastercard INC - A | Stock-Financials | 4.04% | -0.26% | +19.56% | |
| 7 | MSFT | Microsoft CORP | Stock-Tech | 3.91% | -0.86% | +19.16% | |
| 8 | AMZN | Amazon.com INC | Stock-Consumer Disc | 3.84% | -0.19% | +17.65% | |
| 9 | JNJ | Johnson & Johnson | Stock-Healthcare | 3.51% | +0.66% | +16.32% | |
| 10 | RTX | Rtx CORP | Stock-Industrials | 3.26% | +0.05% | +7.52% | |
| 11 | AMD | Advanced Micro Devices | Stock-Tech | 3.07% | — | +5.96% | |
| 12 | ABT | Abbott Laboratories | Stock-Healthcare | 3.05% | -0.45% | +18.41% | |
| 13 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 2.94% | +0.17% | +17.29% | |
| 14 | ROK | Rockwell Automation INC | Stock-Industrials | 2.90% | -0.13% | +15.33% | |
| 15 | DHR | Danaher CORP | Stock-Healthcare | 2.78% | -0.37% | +18.59% | |
| 16 | SBGSY | Schneider Elect Se-unsp Adr | Stock-Other | 2.63% | +0.12% | +17.77% | |
| 17 | ADP | Automatic Data Processing | Stock-Tech | 2.62% | -0.52% | +17.66% | |
| 18 | ATR | Aptargroup INC | Stock-Healthcare | 2.62% | +0.23% | +17.86% | |
| 19 | HD | Home Depot INC | Stock-Consumer Disc | 2.56% | +0.04% | +18.38% | |
| 20 | XYL | Xylem INC | Stock-Industrials | 2.30% | -0.12% | +20.95% | |
| 21 | CVX | Chevron CORP | Stock-Energy | 2.30% | +0.31% | -5.54% | |
| 22 | AMAT | Applied Materials INC | Stock-Tech | 2.29% | +0.79% | +28.49% | |
| 23 | LLY | Eli Lilly & Co | Stock-Healthcare | 2.04% | +0.13% | +39.10% | |
| 24 | VRTX | Vertex Pharmaceuticals INC | Stock-Healthcare | 2.00% | +0.05% | +16.05% | |
| 25 | AXP | American Express Co | Stock-Financials | 1.79% | +0.28% | +61.55% | |
| 26 | CNI | Canadian Natl Railway Co | Stock-Industrials | 1.75% | +0.11% | +14.43% | |
| 27 | SCHW | Schwab (charles) CORP | Stock-Financials | 1.70% | +0.46% | +62.69% | |
| 28 | NEE | Nextera Energy INC | Stock-Utilities | 1.58% | +0.61% | +56.86% | |
| 29 | UBER | Uber Technologies INC | Stock-Industrials | 1.53% | +0.27% | +52.96% | |
| 30 | CARR | Carrier Global CORP | Stock-Industrials | 1.15% | -0.17% | -8.86% | |
| 31 | XOM | Exxon Mobil CORP | Stock-Energy | 0.70% | +0.12% | -3.82% | |
| 32 | ASML | ASML Holding N.V. | Stock-Tech | 0.66% | +0.32% | +77.00% | |
| 33 | FISV | Fiserv INC | Stock-Other | 0.63% | -0.31% | -9.42% | |
| 34 | HON | Honeywell International INC | Stock-Industrials | 0.56% | +0.13% | +27.39% | |
| 35 | ABBV | Abbvie INC | Stock-Healthcare | 0.55% | — | +5.76% | |
| 36 | UNH | Unitedhealth Group INC | Stock-Healthcare | 0.54% | -0.88% | -48.61% | |
| 37 | WCN | Waste Connections INC | Stock-Industrials | 0.53% | +0.53% | NEW | |
| 38 | AVGO | Broadcom INC | Stock-Tech | 0.52% | +0.37% | +326.81% | |
| 39 | APH | Amphenol Corp-cl A | Stock-Tech | 0.41% | — | — | |
| 40 | GQGIX | Gqg Part Emerg Mkts Eq-inst | Stock-Other | 0.40% | +0.12% | +56.27% | |
| 41 | ARIMX | Amg Rr Smid Val-i | Stock-Other | 0.37% | +0.12% | +63.83% | |
| 42 | CRWD | Crowdstrike Holdings INC - A | Stock-Tech | 0.36% | +0.10% | +86.11% | |
| 43 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.35% | +0.01% | — | |
| 44 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.32% | — | +14.00% | |
| 45 | MRK | Merck & Co. INC. | Stock-Healthcare | 0.32% | +0.01% | — | |
| 46 | NSRGY | Nestle Sa-spons Adr | Stock-Other | 0.29% | -0.10% | -17.23% | |
| 47 | CP | Canadian Pacific Kansas City | Stock-Industrials | 0.28% | — | +0.47% | |
| 48 | PEP | Pepsico INC | Stock-Consumer Staples | 0.25% | — | — | |
| 49 | MKC | Mccormick & Co-non Vtg Shrs | Stock-Consumer Staples | 0.24% | -0.83% | -65.60% | |
| 50 | UNP | Union Pacific CORP | Stock-Industrials | 0.20% | — | — |
Performance for Q3 2026
+6.8%
Performance Last 4 Quarters
+22%
Based on 80% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 187 | $181.8M | 17 | |
| 2025-12-31 | 244 | $163.2M | 15 | |
| 2025-09-30 | 222 | $156.3M | 30 | |
| 2025-06-30 | 224 | $133.1M | 0 | |
| 2025-03-31 | 215 | $126.2M | 100 | |
| 2024-12-31 | 199 | $109.5M | 0 | |
| 2020-06-30 | 160 | $29.6M | 35 | |
| 2020-03-31 | 150 | $22.9M | 20 | |
| 2019-12-31 | 158 | $27.5M | 14 | |
| 2019-09-30 | 153 | $25.5M | 27 | |
| 2019-06-30 | 144 | $25.8M | 18 | |
| 2019-03-31 | 147 | $22.9M | 19 | |
| 2018-12-31 | 128 | $20.9M | 25 | |
| 2018-09-30 | 144 | $25.0M | 18 | |
| 2018-06-30 | 136 | $20.9M | 13 | |
| 2018-03-31 | 132 | $19.9M | 13 | |
| 2017-12-31 | 141 | $21.0M | 55 | |
| 2017-09-30 | 115 | $13.7M | 11 | |
| 2017-06-30 | 107 | $12.4M | 16 | |
| 2017-03-31 | 105 | $11.0M | 33 | |
| 2016-12-31 | 97 | $8.3M | 30 | |
| 2016-09-30 | 86 | $6.2M | 15 | |
| 2016-06-30 | 82 | $6.6M | 10 | |
| 2016-03-31 | 77 | $6.3M | 51 | |
| 2015-12-31 | 56 | $3.7M | 0 |
Elefante Mark B's most significant position changes for 2026-03-31: New buy: Waste Connections INC (WCN); New buy: Deere & Co (DE); Sold out: Novo-nordisk A/s-spons Adr (NVO); Sold out: Relx PLC - Spon Adr (RELX); New buy: Dover CORP (DOV).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | AMAT | Applied Materials INC | +0.8% | +28.49% | Add |
| 2 | JNJ | Johnson & Johnson | +0.7% | +16.32% | Add |
| 3 | ADI | Analog Devices INC | +0.6% | +9.02% | Add |
| 4 | NEE | Nextera Energy INC | +0.6% | +56.86% | Add |
| 5 | SCHW | Schwab (charles) CORP | +0.5% | +62.69% | Add |
| 6 | AVGO | Broadcom INC | +0.4% | +326.81% | Add |
| 7 | ASML | ASML Holding N.V. | +0.3% | +77.00% | Add |
| 8 | CVX | Chevron CORP | +0.3% | -5.54% | Trim |
| 9 | TJX | Tjx Companies INC | +0.3% | +15.86% | Add |
| 10 | AXP | American Express Co | +0.3% | +61.55% | Add |
| 11 | UBER | Uber Technologies INC | +0.3% | +52.96% | Add |
| 12 | ATR | Aptargroup INC | +0.2% | +17.86% | Add |
| 13 | PG | Procter & Gamble Co/the | +0.2% | +17.29% | Add |
| 14 | LLY | Eli Lilly & Co | +0.1% | +39.10% | Add |
| 15 | HON | Honeywell International INC | +0.1% | +27.39% | Add |
| 16 | SBGSY | Schneider Elect Se-unsp Adr | +0.1% | +17.77% | Add |
| 17 | XOM | Exxon Mobil CORP | +0.1% | -3.82% | Trim |
| 18 | GQGIX | Gqg Part Emerg Mkts Eq-inst | +0.1% | +56.27% | Add |
| 19 | ARIMX | Amg Rr Smid Val-i | +0.1% | +63.83% | Add |
| 20 | CNI | Canadian Natl Railway Co | +0.1% | +14.43% | Add |
| 21 | CRWD | Crowdstrike Holdings INC - A | +0.1% | +86.11% | Add |
| 22 | RTX | Rtx CORP | +0.1% | +7.52% | Add |
| 23 | VRTX | Vertex Pharmaceuticals INC | +0.1% | +16.05% | Add |
| 24 | HD | Home Depot INC | 0% | +18.38% | Add |
| 25 | COST | Costco Wholesale CORP | 0% | — | Unchanged |
| 26 | MRK | Merck & Co. INC. | 0% | — | Unchanged |
| 27 | GOOG | Alphabet Inc-cl C | -0.1% | -18.99% | Trim |
| 28 | NSRGY | Nestle Sa-spons Adr | -0.1% | -17.23% | Trim |
| 29 | XYL | Xylem INC | -0.1% | +20.95% | Add |
| 30 | ROK | Rockwell Automation INC | -0.1% | +15.33% | Add |
| 31 | AAPL | Apple INC | -0.2% | +16.15% | Add |
| 32 | CARR | Carrier Global CORP | -0.2% | -8.86% | Trim |
| 33 | AMZN | Amazon.com INC | -0.2% | +17.65% | Add |
| 34 | V | Visa Inc-class A Shares | -0.2% | -43.60% | Trim |
| 35 | NVDA | Nvidia CORP | -0.2% | +13.98% | Add |
| 36 | MA | Mastercard INC - A | -0.3% | +19.56% | Add |
| 37 | FISV | Fiserv INC | -0.3% | -9.42% | Trim |
| 38 | DHR | Danaher CORP | -0.4% | +18.59% | Add |
| 39 | ABT | Abbott Laboratories | -0.5% | +18.41% | Add |
| 40 | ADP | Automatic Data Processing | -0.5% | +17.66% | Add |
| 41 | GOOGL | Alphabet Inc-cl A | -0.7% | +10.28% | Add |
| 42 | MKC | Mccormick & Co-non Vtg Shrs | -0.8% | -65.60% | Trim |
| 43 | MSFT | Microsoft CORP | -0.9% | +19.16% | Add |
| 44 | UNH | Unitedhealth Group INC | -0.9% | -48.61% | Trim |
| 45 | WCN | Waste Connections INC | — | NEW | New buy |
| 46 | DE | Deere & Co | — | NEW | New buy |
| 47 | NVO | Novo-nordisk A/s-spons Adr | — | EXIT | Sold out |
| 48 | RELX | Relx PLC - Spon Adr | — | EXIT | Sold out |
| 49 | DOV | Dover CORP | — | NEW | New buy |
| 50 | ✓ | Novozymes A S Dkk 2.0 | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-10 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-28 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-06 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-07-28 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-07 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-01-15 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-06 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-07-24 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-02 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-01-24 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-15 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-30 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-24 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-02 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-26 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-07-26 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-14 | 13F-HR | View on EDGAR |
| 2016-09-30 | 2016-11-16 | 13F-HR | View on EDGAR |
| 2016-06-30 | 2016-08-08 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-27 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-02-12 | 13F-HR | View on EDGAR |
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