MCM
PLTR icon

Mattern Capital Management’s Palantir PLTR Stock Holding History

Mattern Capital Management’s Portfolio PLTR Stock Details PLTR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$677K Hold
4,631
– – 0.08% 126
2025
Q4 		$823K Sell
4,631
-179
-4% -$32.4K 0.1% 126
2025
Q3 		$877K Hold
4,810
– – 0.1% 124
2025
Q2 		$656K Buy
4,810
+260
+6% +$30.5K 0.08% 129
2025
Q1 		$384K Sell
4,550
-6
-0.1% -$527 0.05% 141
2024
Q4 		$345K Buy
+4,556
New +$265K 0.04% 137

Other funds holding PLTR

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Mattern Capital Management's PLTR Position: Q1 2026 in Review

Mattern Capital Management held its Palantir (PLTR) position steady in Q1 2026 at 4,631 shares worth $677K. The position accounts for 0.08% of the portfolio, ranked #126.

Mattern Capital Management first reported a position in PLTR in Q4 2024 and has held it in 6 quarters since. The position peaked at $877K in Q3 2025. 2,977 funds tracked by Wall St. Rank hold PLTR as of Q1 2026.

  • Mattern Capital Management held 4,631 shares of Palantir worth $677K as of Q1 2026.
  • Mattern Capital Management left its Palantir share count unchanged in Q1 2026.
  • Palantir made up 0.08% of Mattern Capital Management's portfolio in Q1 2026, its #126 holding.
  • Mattern Capital Management first reported a position in Palantir in Q4 2024 and has held it in 6 quarters since.
  • Mattern Capital Management's Palantir position peaked at $877K in Q3 2025.
  • 2,977 funds tracked by Wall St. Rank held Palantir as of Q1 2026.

Based on Mattern Capital Management's 13F filing for Q1 2026, filed 4 May 2026.