Bob Robotti Robotti Robert
Bob Robotti is the founder of Robotti & Company, a value-oriented investment firm with a long history of fundamental research. He is known for concentrating in sectors where he believes the market misunderstands asset value, including energy services and industrial businesses at various points in the cycle. Robotti’s filings attract investors who track small- and mid-cap value specialists.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Westlake Corp
WLK
|
+$5.29M |
| 2 |
Builders FirstSource
BLDR
|
+$1.46M |
| 3 |
MRP
Millrose Properties Inc
MRP
|
+$1.2M |
| 4 |
U-Haul Holding Co Series N
UHAL.B
|
+$292K |
| 5 |
CET
Central Securities Corp
CET
|
+$221K |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
LSB Industries
LXU
|
+$8.27M |
| 2 |
Navigator Holdings
NVGS
|
+$3.34M |
| 3 |
Canadian Solar
CSIQ
|
+$2.91M |
| 4 |
Preformed Line Products
PLPC
|
+$2.67M |
| 5 |
Seneca Foods Class A
SENEA
|
+$2.49M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Energy | 33.53% |
| 2 | Industrials | 17.27% |
| 3 | Materials | 16.1% |
| 4 | Consumer Discretionary | 10.13% |
| 5 | Real Estate | 10.09% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
51
International Seaways
INSW
$4.93B
| $486K | 0.09% |
10,000
| – | – |
|
|
AMRZ
52
Amrize Ltd
AMRZ
$25B
| $413K | 0.07% |
11,000
+2,500
| +29% | +$128K |
|
53
Cummins
CMI
$80.9B
| $281K | 0.05% |
550
| – | – |
|
54
SLB Ltd
SLB
$79.9B
| $275K | 0.05% |
8,000
| – | – |
|
|
CET
55
Central Securities Corp
CET
$1.62B
| $222K | 0.04% |
+4,376
| New | +$221K |
|
|
56
Seneca Foods Class A
SENEA
$1.31B
| $219K | 0.04% |
1,982
-21,788
| -92% | -$2.49M |
|
57
Markel Group
MKL
$22.2B
| $215K | 0.04% |
+100
| New | +$203K |
|
|
ORLA
58
DELISTED
Orla Mining
ORLA
| $162K | 0.03% |
15,000
| – | – |
|
|
QIPT
59
DELISTED
Quipt Home Medical
QIPT
| $66.2K | 0.01% |
18,758
| – | – |
|
60
Alpha Tau Medical Warrant
DRTSW
$99.3M
| $17K | ﹤0.01% |
50,000
| – | – |
|
61
Apple
AAPL
$4.51T
| – | – |
-1,053
| Closed | -$268K |
|
|
NESR
62
National Energy Services Reunited Corp
NESR
$3.33B
| – | – |
-10,000
| Closed | -$103K |
|
Similar funds
Bob Robotti's Q4 2025 Portfolio in Review
As of Q4 2025, Bob Robotti held 62 positions worth $557M, down 3.4% from $576M the previous quarter. Its ten largest holdings account for 66% of the portfolio.
Bob Robotti's Q4 2025 filing shows 2 new, 24 increased, 20 reduced and 2 closed positions. Its largest new stake was Central Securities Corp: 4,376 shares worth $222K. The largest sale was LSB Industries, an estimated $8.27M.
By sector, the portfolio is most concentrated in Energy at 34% of assets, down from 34% a quarter earlier, followed by Industrials and Materials.
- Bob Robotti's largest Q4 2025 buy was Central Securities Corp: 4,376 shares worth $222K.
- Bob Robotti added most to Westlake Corp in Q4 2025, an estimated $5.29M increase.
- Bob Robotti's biggest Q4 2025 reduction was LSB Industries, cutting an estimated $8.27M.
- Bob Robotti fully exited Apple in Q4 2025, selling an estimated $268K.
- Bob Robotti's ten largest holdings make up 66% of its $557M portfolio in Q4 2025.
- Bob Robotti opened 2 new positions and closed 2 in Q4 2025.
- Bob Robotti's portfolio value fell 3.4% quarter-over-quarter to $557M.
Based on Robotti Robert's 13F filing for Q4 2025, filed 12 Feb 2026.