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ARDSLEY ADVISORY PARTNERS LP

Position in MIR — Mirion Technologies, Inc.

CIK 900529 Norwalk, CT

Position in MIR

as of Jun 30, 2026 · filed Jul 13, 2026
Position Value
$5,827,250
-$214,500 QoQ
Shares Held
325,000
0.0% QoQ
Ownership
0.131%
of shares outstanding
% of Portfolio
0.65%
of 13F equity value
Holder Rank
#97
of 344 holders
Holding Since
Jun 2023
13 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MIR Over Time

Shares Held

Position Value (USD)

Position in Specialty Industrial Machinery

Industrials · as of Jun 30, 2026

ARDSLEY ADVISORY PARTNERS LP holds $11,107,050 across 3 Specialty Industrial Machinery names. MIR ranks #1 (52.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MIR
Mirion Technologies, Inc.
This page
325,000 $5,827,250

All Filings in MIR

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13 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,827,250 325,000
2026-03-31 $6,041,750 325,000
2025-12-31 $7,611,500 325,000
2025-09-30 $7,634,397 328,220
2025-06-30 $9,973,126 463,220
2025-03-31 $2,537,500 175,000
2024-12-31 $2,181,250 125,000
2024-09-30 $1,383,750 125,000
2024-06-30 $1,074,000 100,000
2024-03-31 $1,421,250 125,000
2023-12-31 $1,537,500 150,000
2023-09-30 $747,000 100,000
2023-06-30 $845,000 100,000