IP
BELFB

Isthmus Partners’s Bel Fuse Inc Class B BELFB Stock Holding History

Isthmus Partners’s Portfolio BELFB Stock Details BELFB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-27,355
Closed -$3.86K – 217
2025
Q3 		$3.86K Sell
27,355
-20,004
-42% -$2.55M ﹤0.01% 151
2025
Q2 		$4.63M Sell
47,359
-3
-0% -$226 0.54% 51
2025
Q1 		$3.55M Sell
47,362
-47
-0.1% -$3.75K 0.44% 54
2024
Q4 		$3.91M Sell
47,409
-217
-0.5% -$17.6K 0.48% 55
2024
Q3 		$3.74M Sell
47,626
-11,578
-20% -$788K 0.44% 55
2024
Q2 		$3.86M Buy
+59,204
New +$3.72M 0.45% 63

Other funds holding BELFB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $295B AUM 31.6% 1-Year Est. Return

Isthmus Partners's BELFB Position: Q4 2025 in Review

Isthmus Partners sold out of Bel Fuse Inc Class B (BELFB) in Q4 2025, closing a stake of 27,355 shares — an estimated $3.86K sold.

Isthmus Partners first reported a position in BELFB in Q2 2024 and held it in 6 quarters. The position peaked at $4.63M in Q2 2025. 206 funds tracked by Wall St. Rank hold BELFB as of Q4 2025.

  • Isthmus Partners reported no remaining Bel Fuse Inc Class B position as of Q4 2025 after selling out during the quarter.
  • Isthmus Partners sold 27,355 Bel Fuse Inc Class B shares in Q4 2025, an estimated $3.86K.
  • Isthmus Partners first reported a position in Bel Fuse Inc Class B in Q2 2024 and held it in 6 quarters.
  • Isthmus Partners's Bel Fuse Inc Class B position peaked at $4.63M in Q2 2025.
  • 206 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q4 2025.

Based on Isthmus Partners's 13F filing for Q4 2025, filed 5 Feb 2026.