Granahan Investment Management’s Bel Fuse Inc Class B BELFB Stock Holding History

Granahan Investment 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 Q1	–	Sell	-29,884	Closed	-$5.07M	–	151
2025 Q4	$5.07M	Sell	29,884 -57,426	-66%	-$8.97M	0.22%	104
2025 Q3	$12.3M	Sell	87,310 -21,602	-20%	-$2.75M	0.5%	51
2025 Q2	$10.6M	Sell	108,912 -42,569	-28%	-$3.21M	0.43%	59
2025 Q1	$11.3M	Sell	151,481 -8,023	-5%	-$641K	0.56%	56
2024 Q4	$13.2M	Sell	159,504 -10,892	-6%	-$881K	0.55%	52
2024 Q3	$13.4M	Sell	170,396 -16,894	-9%	-$1.15M	0.53%	56
2024 Q2	$12.2M	Buy	187,290 +72,751	+64%	+$4.57M	0.49%	66
2024 Q1	$6.91M	Buy	114,539 +78,671	+219%	+$4.88M	0.24%	110
2023 Q4	$2.39M	Buy	35,868 +5,483	+18%	+$294K	0.08%	156
2023 Q3	$1.45M	Buy	30,385 +17,390	+134%	+$896K	0.05%	165
2023 Q2	$746K	Buy	+12,995	New	+$595K	0.02%	168

Other funds holding BELFB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Granahan Investment Management's BELFB Position: Q1 2026 in Review

Granahan Investment Management sold out of Bel Fuse Inc Class B (BELFB) in Q1 2026, closing a stake of 29,884 shares — an estimated $5.07M sold.

Granahan Investment Management first reported a position in BELFB in Q2 2023 and held it in 11 quarters. The position peaked at $13.4M in Q3 2024. 233 funds tracked by Wall St. Rank hold BELFB as of Q1 2026.

Granahan Investment Management reported no remaining Bel Fuse Inc Class B position as of Q1 2026 after selling out during the quarter.
Granahan Investment Management sold 29,884 Bel Fuse Inc Class B shares in Q1 2026, an estimated $5.07M.
Granahan Investment Management first reported a position in Bel Fuse Inc Class B in Q2 2023 and held it in 11 quarters.
Granahan Investment Management's Bel Fuse Inc Class B position peaked at $13.4M in Q3 2024.
233 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q1 2026.

Based on Granahan Investment Management's 13F filing for Q1 2026, filed 15 May 2026.