CIK: 0000904793
Total reported value
$179.1M
Reporting period: 2026-03-31 · Number of holdings: 13
SANTA MONICA PARTNERS LP disclosed 13 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $179.1M and a quarterly turnover rate of 31.9%.
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Santa Monica Partners LP's disclosed holdings carry a Herfindahl concentration index of 0.279 — mathematically equivalent to about 4 equally-sized positions, well below its 13 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.69), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 42% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Add TPLUSD
0.0% $30.3M
Trim MA
0.0% -$7.3M
Trim BCPC
-56.3% -$9.3M
Trim BR
0.0% -$2.5M
Trim 389930109
0.0% -$1.0M
Add BELFB
0.0% $1.9M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TPLUSD | Texas Pacific Land Trust | Stock-Other | 42.91% | +14.70% | — | |
| 2 | MA | Mastercard INC - A | Stock-Financials | 28.50% | -6.87% | — | |
| 3 | BELFB | Bel Fuse Inc-cl B | Stock-Other | 7.47% | +0.51% | — | |
| 4 | GRMN | Garmin Ltd. | Stock-Tech | 5.28% | +0.27% | — | |
| 5 | BCPC | Balchem CORP | Stock-Materials | 4.83% | -6.04% | -56.27% | |
| 6 | BR | Broadridge Financial Solutio | Stock-Tech | 3.70% | -1.82% | — | |
| 7 | BELFA | Bel Fuse Inc-cl A | Stock-Other | 2.36% | +0.20% | — | |
| 8 | ✓ | Grayscale Bitcoin Trust ETF | ETF-Crypto | 1.91% | -0.78% | — | |
| 9 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 1.60% | -0.23% | — | |
| 10 | LB | Landbridge Co Llc-a | Stock-Other | 0.69% | +0.16% | — | |
| 11 | MCB | Metropolitan Bank Holding Co | Stock-Other | 0.36% | — | — | |
| 12 | BTCGBP | Grayscale Bitcoin Mini Trust | ETF-Crypto | 0.22% | -0.08% | — | |
| 13 | BNT | Brookfield Wealth Solutions Ltd. | Stock-Other | 0.16% | -0.03% | — |
Performance for Q3 2026
-1.5%
Performance Last 4 Quarters
+3.2%
Based on 48% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 13 | $179.1M | 32 | |
| 2025-12-31 | 13 | $164.9M | 7 | |
| 2025-09-30 | 13 | $170.4M | 20 | |
| 2025-06-30 | 13 | $171.5M | 0 | |
| 2025-03-31 | 13 | $182.5M | 100 | |
| 2024-12-31 | 17 | $185.2M | 0 | |
| 2024-09-30 | 17 | $169.8M | 0 | |
| 2024-06-30 | 16 | $148.9M | 0 | |
| 2024-03-31 | 16 | $144.6M | 0 | |
| 2023-12-31 | 16 | $135.2M | 0 | |
| 2023-09-30 | 17 | $129.5M | 0 | |
| 2023-06-30 | 18 | $123.3M | 0 | |
| 2023-03-31 | 18 | $123.3M | 0 | |
| 2022-12-31 | 19 | $138.2M | 0 | |
| 2022-09-30 | 22 | $133.4M | 0 | |
| 2022-06-30 | 22 | $133.6M | 0 | |
| 2022-03-31 | 22 | $142.6M | 0 | |
| 2021-12-31 | 21 | $157.0M | 0 | |
| 2021-09-30 | 23 | $154.4M | 0 | |
| 2021-06-30 | 26 | $160.3M | 98 | |
| 2021-03-31 | 25 | $155.4M | 15 | |
| 2020-12-31 | 25 | $135.3M | 19 | |
| 2020-09-30 | 21 | $111.8M | 38 | |
| 2020-06-30 | 21 | $144.4M | 44 | |
| 2020-03-31 | 21 | $96.4M | 22 | |
| 2019-12-31 | 25 | $119.9M | 10 | |
| 2019-09-30 | 26 | $116.0M | 5 | |
| 2019-06-30 | 26 | $119.2M | 11 | |
| 2019-03-31 | 26 | $110.7M | 19 | |
| 2018-12-31 | 27 | $91.7M | 29 | |
| 2018-09-30 | 27 | $122.8M | 15 | |
| 2018-06-30 | 27 | $106.7M | 15 | |
| 2018-03-31 | 26 | $92.5M | 24 | |
| 2017-12-31 | 30 | $110.7M | 0 |
Santa Monica Partners LP's most significant position changes for 2026-03-31: Trim: Balchem CORP (BCPC) — shares -56.27%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | TPLUSD | Texas Pacific Land Trust | +14.7% | — | Unchanged |
| 2 | BELFB | Bel Fuse Inc-cl B | +0.5% | — | Unchanged |
| 3 | GRMN | Garmin Ltd. | +0.3% | — | Unchanged |
| 4 | BELFA | Bel Fuse Inc-cl A | +0.2% | — | Unchanged |
| 5 | LB | Landbridge Co Llc-a | +0.2% | — | Unchanged |
| 6 | MCB | Metropolitan Bank Holding Co | — | — | Unchanged |
| 7 | BNT | Brookfield Wealth Solutions Ltd. | 0% | — | Unchanged |
| 8 | BTCGBP | Grayscale Bitcoin Mini Trust | -0.1% | — | Unchanged |
| 9 | BRK-A | Berkshire Hathaway Inc-cl A | -0.2% | — | Unchanged |
| 10 | ✓ | Grayscale Bitcoin Trust ETF | -0.8% | — | Unchanged |
| 11 | BR | Broadridge Financial Solutio | -1.8% | — | Unchanged |
| 12 | BCPC | Balchem CORP | -6% | -56.27% | Trim |
| 13 | MA | Mastercard INC - A | -6.9% | — | Unchanged |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-14 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-12 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-13 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-13 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-30 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-14 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-13 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-13 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-13 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-09 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-12 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-15 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-10 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-10 | Amendment | View on EDGAR |
| 2021-12-31 | 2022-02-09 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-12 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-11 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-17 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-16 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-10-22 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-04 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-04-13 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-01-22 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-10-18 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-07-22 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-04-18 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-01-23 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-22 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-25 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-04-19 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-13 | 13F-HR | View on EDGAR |
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