PCM
BELFB

Portolan Capital Management’s Bel Fuse Inc Class B BELFB Stock Holding History

Portolan Capital Management’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
2026
Q2 		$15.9M Sell
47,856
-5,314
-10% -$1.44M 0.6% 57
2026
Q1 		$10.5M Sell
53,170
-86,343
-62% -$18M 0.56% 54
2025
Q4 		$23.7M Buy
139,513
+15,747
+13% +$2.46M 1.27% 21
2025
Q3 		$17.5M Buy
123,766
+61,240
+98% +$7.8M 0.94% 34
2025
Q2 		$6.11M Sell
62,526
-121,698
-66% -$9.18M 0.38% 76
2025
Q1 		$13.8M Sell
184,224
-24,246
-12% -$1.94M 1.05% 36
2024
Q4 		$17.2M Buy
208,470
+87,612
+72% +$7.09M 1.16% 25
2024
Q3 		$9.49M Buy
120,858
+66,621
+123% +$4.54M 0.69% 51
2024
Q2 		$3.54M Sell
54,237
-53,460
-50% -$3.36M 0.29% 101
2024
Q1 		$6.5M Sell
107,697
-82,815
-43% -$5.13M 0.49% 75
2023
Q4 		$12.7M Sell
190,512
-188,666
-50% -$10.1M 1.11% 25
2023
Q3 		$18.1M Buy
379,178
+24,052
+7% +$1.24M 1.69% 13
2023
Q2 		$20.4M Sell
355,126
-151,227
-30% -$6.92M 1.81% 14
2023
Q1 		$19M Buy
506,353
+19,877
+4% +$716K 1.81% 8
2022
Q4 		$16M Buy
486,476
+170,774
+54% +$5.58M 1.59% 12
2022
Q3 		$7.97M Buy
+315,702
New +$7.42M 0.84% 39

Other funds holding BELFB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Portolan Capital Management's BELFB Position: Q2 2026 in Review

Portolan Capital Management reduced its Bel Fuse Inc Class B (BELFB) stake by 10% in Q2 2026, selling an estimated $1.44M and leaving 47,856 shares worth $15.9M. The position accounts for 0.6% of the portfolio, ranked #57.

Portolan Capital Management first reported a position in BELFB in Q3 2022 and has held it in 16 quarters since. The position peaked at $23.7M in Q4 2025. 277 funds tracked by Wall St. Rank hold BELFB as of Q2 2026.

  • Portolan Capital Management held 47,856 shares of Bel Fuse Inc Class B worth $15.9M as of Q2 2026.
  • Portolan Capital Management sold 5,314 Bel Fuse Inc Class B shares in Q2 2026, an estimated $1.44M.
  • Bel Fuse Inc Class B made up 0.6% of Portolan Capital Management's portfolio in Q2 2026, its #57 holding.
  • Portolan Capital Management first reported a position in Bel Fuse Inc Class B in Q3 2022 and has held it in 16 quarters since.
  • Portolan Capital Management's Bel Fuse Inc Class B position peaked at $23.7M in Q4 2025.
  • 277 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.