Granahan Investment Management’s NPK International NPKI Stock Holding History

Granahan Investment Management’s Portfolio NPKI Stock Details NPKI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$5.82M	Sell	401,658 -178,789	-31%	-$2.48M	0.28%	96
2025 Q4	$6.92M	Buy	580,447 +80,507	+16%	+$982K	0.3%	78
2025 Q3	$5.65M	Sell	499,940 -157,520	-24%	-$1.53M	0.23%	88
2025 Q2	$5.59M	Sell	657,460 -118,970	-15%	-$872K	0.23%	95
2025 Q1	$4.51M	Buy	776,430 +70,723	+10%	+$470K	0.22%	99
2024 Q4	$5.41M	Buy	705,707 +21,816	+3%	+$160K	0.23%	102
2024 Q3	$4.74M	Buy	683,891 +327,645	+92%	+$2.52M	0.19%	133
2024 Q2	$2.96M	Buy	+356,246	New	+$2.74M	0.12%	153

Other funds holding NPKI

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

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

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

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

Royce & Associates New York $10.1B AUM 42.88% 1-Year Est. Return

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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

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

Granahan Investment Management reduced its NPK International (NPKI) stake by 31% in Q1 2026, selling an estimated $2.48M and leaving 401,658 shares worth $5.82M. The position accounts for 0.28% of the portfolio, ranked #96.

Granahan Investment Management first reported a position in NPKI in Q2 2024 and has held it in 8 quarters since. The position peaked at $6.92M in Q4 2025. 246 funds tracked by Wall St. Rank hold NPKI as of Q1 2026.

Granahan Investment Management held 401,658 shares of NPK International worth $5.82M as of Q1 2026.
Granahan Investment Management sold 178,789 NPK International shares in Q1 2026, an estimated $2.48M.
NPK International made up 0.28% of Granahan Investment Management's portfolio in Q1 2026, its #96 holding.
Granahan Investment Management first reported a position in NPK International in Q2 2024 and has held it in 8 quarters since.
Granahan Investment Management's NPK International position peaked at $6.92M in Q4 2025.
246 funds tracked by Wall St. Rank held NPK International as of Q1 2026.

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