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MAIRS & POWER INC

Position in PLUG — Plug Power Inc

CIK 1070134 St Paul, MN

Position in PLUG

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$27,100
+$4,500 QoQ
Shares Held
10,000
0.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#355
of 501 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PLUG Over Time

Shares Held

Position Value (USD)

Position in Electrical Equipment & Parts

Industrials · as of Jun 30, 2026

MAIRS & POWER INC holds $348,465,871 across 3 Electrical Equipment & Parts names. PLUG ranks #3 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 PLUG
Plug Power Inc
This page
10,000 $27,100

All Filings in PLUG

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25 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $27,100 10,000
2026-03-31 $22,600 10,000
2025-12-31 $19,700 10,000
2025-09-30 $23,300 10,000
2025-06-30 $14,900 10,000
2025-03-31 $13,500 10,000
2024-12-31 $21,300 10,000
2024-09-30 $22,600 10,000
2024-06-30 $23,300 10,000
2024-03-31 $34,400 10,000
2023-09-30 $76,000 10,000
2023-06-30 $103,900 10,000
2023-03-31 $117,200 10,000
2022-12-31 $123,700 10,000
2022-09-30 $210,100 10,000
2022-06-30 $165,700 10,000
2022-03-31 $286,100 10,000
2021-12-31 $282,300 10,000
2021-09-30 $255,400 10,000
2021-06-30 $341,900 10,000
2021-03-31 $358,400 10,000
2020-12-31 $678,200 20,000
2020-09-30 $279,933 20,875
2020-06-30 $246,300 30,000
2020-03-31 $106,200 30,000