TA
BELFB

Tectonic Advisors’s Bel Fuse Inc Class B BELFB Stock Holding History

Tectonic Advisors’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
Q3 		– Sell
-8,939
Closed -$873K – 333
2025
Q2 		$873K Sell
8,939
-6,538
-42% -$493K 0.05% 187
2025
Q1 		$1.16M Sell
15,477
-3,095
-17% -$247K 0.07% 144
2024
Q4 		$1.53M Buy
18,572
+830
+5% +$67.2K 0.1% 121
2024
Q3 		$1.39M Buy
17,742
+7,922
+81% +$539K 0.09% 122
2024
Q2 		$641K Buy
+9,820
New +$617K 0.05% 201

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
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 Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Thrivent Financial for Lutherans
Thrivent Financial for Lutherans Minneapolis, Minnesota $52.5B AUM 27.12% 1-Year Est. Return

Tectonic Advisors's BELFB Position: Q3 2025 in Review

Tectonic Advisors sold out of Bel Fuse Inc Class B (BELFB) in Q3 2025, closing a stake of 8,939 shares — an estimated $873K sold.

Tectonic Advisors first reported a position in BELFB in Q2 2024 and held it in 5 quarters. The position peaked at $1.53M in Q4 2024. 197 funds tracked by Wall St. Rank hold BELFB as of Q3 2025.

  • Tectonic Advisors reported no remaining Bel Fuse Inc Class B position as of Q3 2025 after selling out during the quarter.
  • Tectonic Advisors sold 8,939 Bel Fuse Inc Class B shares in Q3 2025, an estimated $873K.
  • Tectonic Advisors first reported a position in Bel Fuse Inc Class B in Q2 2024 and held it in 5 quarters.
  • Tectonic Advisors's Bel Fuse Inc Class B position peaked at $1.53M in Q4 2024.
  • 197 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q3 2025.

Based on Tectonic Advisors's 13F filing for Q3 2025, filed 21 Oct 2025.