Portolan Capital Management’s Celestica CLS Stock Holding History

Portolan Capital Management’s Portfolio CLS Stock Details CLS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$46.3M	Sell	126,856 -71,007	-36%	-$26.6M	1.73%	10
2026 Q1	$55.7M	Buy	197,863 +25,588	+15%	+$7.42M	2.97%	3
2025 Q4	$50.9M	Sell	172,275 -79,281	-32%	-$23.9M	2.73%	4
2025 Q3	$62M	Sell	251,556 -298,037	-54%	-$60.1M	3.35%	5
2025 Q2	$85.8M	Buy	549,593 +156,673	+40%	+$16.7M	5.38%	1
2025 Q1	$31M	Sell	392,920 -234,021	-37%	-$24.8M	2.35%	9
2024 Q4	$57.9M	Sell	626,941 -104,005	-14%	-$8.14M	3.89%	2
2024 Q3	$37.4M	Sell	730,946 -22,170	-3%	-$1.15M	2.71%	5
2024 Q2	$43.2M	Sell	753,116 -247,373	-25%	-$12.5M	3.56%	2
2024 Q1	$45M	Sell	1,000,489 -233,535	-19%	-$8.86M	3.42%	2
2023 Q4	$36.1M	Sell	1,234,024 -176,352	-13%	-$4.69M	3.16%	3
2023 Q3	$34.6M	Buy	1,410,376 +989,186	+235%	+$20.2M	3.23%	4
2023 Q2	$6.11M	Buy	+421,190	New	+$5.21M	0.54%	55

Other funds holding CLS

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

CIBC World Market Toronto, Ontario, Canada $62.3B AUM 44.64% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Connor, Clark & Lunn Investment Management (CC&L) Vancouver, British Columbia, Canada $52.8B AUM 58.98% 1-Year Est. Return

VARA

Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

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

Portolan Capital Management reduced its Celestica (CLS) stake by 36% in Q2 2026, selling an estimated $26.6M and leaving 126,856 shares worth $46.3M. The position accounts for 1.73% of the portfolio, ranked #10.

Portolan Capital Management first reported a position in CLS in Q2 2023 and has held it in 13 quarters since. The position peaked at $85.8M in Q2 2025. 875 funds tracked by Wall St. Rank hold CLS as of Q2 2026.

Portolan Capital Management held 126,856 shares of Celestica worth $46.3M as of Q2 2026.
Portolan Capital Management sold 71,007 Celestica shares in Q2 2026, an estimated $26.6M.
Celestica made up 1.73% of Portolan Capital Management's portfolio in Q2 2026, its #10 holding.
Portolan Capital Management first reported a position in Celestica in Q2 2023 and has held it in 13 quarters since.
Portolan Capital Management's Celestica position peaked at $85.8M in Q2 2025.
875 funds tracked by Wall St. Rank held Celestica as of Q2 2026.

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