Portolan Capital Management’s Kratos Defense & Security Solutions KTOS Stock Holding History

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

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$18.3M	Sell	259,811 -34,195	-12%	-$3.28M	0.98%	36
2025 Q4	$22.3M	Sell	294,006 -302,100	-51%	-$24.7M	1.2%	23
2025 Q3	$54.5M	Sell	596,106 -732,317	-55%	-$46.9M	2.95%	6
2025 Q2	$61.7M	Sell	1,328,423 -132,307	-9%	-$4.79M	3.87%	2
2025 Q1	$43.4M	Buy	1,460,730 +112,653	+8%	+$3.42M	3.3%	3
2024 Q4	$35.6M	Sell	1,348,077 -428,663	-24%	-$11M	2.39%	6
2024 Q3	$41.4M	Buy	1,776,740 +146,319	+9%	+$3.16M	3%	3
2024 Q2	$32.6M	Buy	1,630,421 +45,730	+3%	+$894K	2.69%	5
2024 Q1	$29.1M	Buy	1,584,691 +848,674	+115%	+$15.5M	2.22%	7
2023 Q4	$14.9M	Buy	736,017 +197,733	+37%	+$3.63M	1.31%	19
2023 Q3	$8.09M	Buy	538,284 +118,862	+28%	+$1.77M	0.76%	41
2023 Q2	$6.01M	Buy	+419,422	New	+$5.68M	0.53%	57

Other funds holding KTOS

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

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

AIM

ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return

VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return

NAMI

Nomura Asset Management International Philadelphia, Pennsylvania $58.4B AUM

Portolan Capital Management's KTOS Position: Q1 2026 in Review

Portolan Capital Management reduced its Kratos Defense & Security Solutions (KTOS) stake by 12% in Q1 2026, selling an estimated $3.28M and leaving 259,811 shares worth $18.3M. The position accounts for 0.98% of the portfolio, ranked #36.

Portolan Capital Management first reported a position in KTOS in Q2 2023 and has held it in 12 quarters since. The position peaked at $61.7M in Q2 2025. 711 funds tracked by Wall St. Rank hold KTOS as of Q1 2026.

Portolan Capital Management held 259,811 shares of Kratos Defense & Security Solutions worth $18.3M as of Q1 2026.
Portolan Capital Management sold 34,195 Kratos Defense & Security Solutions shares in Q1 2026, an estimated $3.28M.
Kratos Defense & Security Solutions made up 0.98% of Portolan Capital Management's portfolio in Q1 2026, its #36 holding.
Portolan Capital Management first reported a position in Kratos Defense & Security Solutions in Q2 2023 and has held it in 12 quarters since.
Portolan Capital Management's Kratos Defense & Security Solutions position peaked at $61.7M in Q2 2025.
711 funds tracked by Wall St. Rank held Kratos Defense & Security Solutions as of Q1 2026.

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