Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Mirion Technologies Inc (MIR)

358 + Investors. Track Smart Money conviction in MIR. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↓ -7
Streak
1Q ▼
Buyers last Q
50%

Smart Money Signals — MIR

Based on 359 hedge funds · latest filing: 2026 Q1 · updated quarterly

📉

Selling streak — 1 quarter in a row

last 6Q
For 1 consecutive quarter, more hedge funds reduced or closed their MIR positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.
🏔️

At the ownership peak (98% of max)

98% of all-time peak
359 hedge funds hold MIR right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
🚀

Fast accumulation — +56% more funds vs a year ago

fund count last 6Q
+129 new funds entered over the past year (+56% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.
🟡

Slight buying edge — 50% buying

201 buying198 selling
Last quarter: 201 funds bought or added vs 198 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
⚠️

Fewer new buyers each quarter (-27 vs last Q)

new funds entering per quarter
Funds opening this position for the first time: 100 → 90 → 86 → 59. Each quarter fewer new institutions are entering. This usually means most funds that wanted in are already in — the stock is well-known but the pool of potential new buyers is shrinking.
📌

Mixed — 39% long-term, 31% new

■ 39% conviction (2yr+) ■ 30% medium ■ 31% new
Of the 359 current holders: 139 (39%) held >2 years, 109 held 1–2 years, and 111 entered in the last year. A mixed base — the stock has long-term believers but also recent buyers who haven't been tested by a downturn yet.
💎

Buying through price weakness — shares +5%, value -24%

Value
-24%
Shares
+4%
Last quarter: funds added +5% more shares while total portfolio value only changed -24%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
📊

Peak discovery — momentum slowing

48 → 100 → 90 → 86 → 59 new funds/Q
New funds entering each quarter: 100 → 90 → 86 → 59. MIR is well-known in the hedge fund world, but fresh entries are gradually declining. The explosive phase of institutional discovery is likely behind us.
🏛️

Veteran-anchored — 45% veterans vs 41% newcomers

■ 45% veterans ■ 14% 1-2yr ■ 41% new
Entry-cohort mix of 377 holders: 171 (45%) are 2+ year veterans, 52 entered 1–2 years ago, and 154 (41%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
✅

Strong quality — 38% AUM from major funds

38% from top-100 AUM funds
53 of 356 holders rank in the top 100 by AUM, accounting for 38% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
4.2
out of 10
Moderate Exit Risk
Exit risk score 4.2/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Institutional Sentiment Summary — MIR

In 2026 Q1, 201 hedge funds were net buyers of MIR (59 opened a new position, 142 added to an existing one), while 198 reduced or exited (132 trimmed, 66 sold completely) — a 50% buyer ratio, indicating a slight buying edge. 38% of total institutional value in MIR is held by top-100 AUM funds, reflecting strong institutional quality. Net fund flow last quarter: -7 funds (more exits than new entries). Total institutional holders: 359.

Hedge Fund Ownership: MIR

How many hedge funds hold MIR — quarterly history vs. share price
Quarterly hedge fund ownership of MIR vs. share price

Market Analysis: MIR

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: MIR

-- --

Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

Is It Too Late to Buy Mirion Technologies Inc (MIR) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much MIR has moved relative to its sector benchmark (XLI) since the 2026 Q1 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End March 31, 2026 · 77d ago
MIR
-9.8%
XLI
+10.5%

MIR outperformed XLI by -20.3% since March 31, 2026.

Since 13F Filing Date May 15, 2026 · 32d ago
MIR
-7.8%
XLI
+4.2%

Since the filing became public, MIR outperformed XLI by -12.0% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

38 top-rated funds 5 high-conviction
Consensus
6.9
/ 10
breadth
×
Elite
3.7
/ 10
conviction
Hedge Fund Positioning: MIR
358 + Investors

Track Smart Money conviction in MIR. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 358 366 -2.19%
13F Shares 254M 243M 4.53%
Total Value $4.39B $5.78B -24.05%
New Positions 59 86 -27
Increased Positions 139 140 -1
Closed Positions 67 58 +9
Reduced Positions 126 99 +27
Total Calls 12 11 9.09%
Total Puts 6 10 -40.0%
PUT/CALL Ratio 0.5 0.91 Bullish

Statistics: MIR

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Valuation Measures Data as of: --

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PEG Ratio (5yr expected) --
Price/Sales (ttm) --
Price/Book (mrq) --
Enterprise Value/Revenue --
Enterprise Value/EBITDA --
Beta (5Y Monthly) --
Short Ratio (Days to Cover) --
Short % of Float --

Financial Highlights

Profitability
Profit Margin --
Return on Assets (ttm) --
Return on Equity (ttm) --
Income Statement & Cash Flow
Revenue (ttm) --
Net Income Avi to Common (ttm) --
Diluted EPS (ttm) --
Total Cash (mrq) --
Total Debt/Equity (mrq) --
Levered Free Cash Flow (ttm) --

Institutional Holders (2026 Q1)

358 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in MIR. Verified SEC 13F-HR filings.

QUARTER:
Top 25 MIR holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Cooperman Leon G 5.11% 8,383,441 $155.8M
2 Two Creeks Capital Management, LP 4.68% 2,449,059 $45.5M
3 Alta Park Capital, LP 2.83% 977,138 $18.2M
4 Chescapmanager LLC 2.76% 1,659,137 $30.8M
5 Corsair Capital Management, L.P. 2.71% 982,419 $18.3M
6 Bastion Asset Management Inc. 2.22% 389,158 $7.3M
7 Pier Capital, LLC 2.16% 703,811 $13.1M
8 Troluce Capital Advisors LLC 1.71% 1,500,000 $27.9M
9 Montanaro Asset Management Ltd 1.70% 305,300 $5.7M
10 Summit Creek Advisors LLC 1.21% 315,880 $5.9M
11 Essex Investment Management Co LLC 0.91% 309,110 $5.7M
12 Hollow Brook Wealth Management LLC 0.82% 172,004 $3.2M
13 Emerald Advisers, LLC 0.81% 1,381,574 $25.7M
14 Emerald Mutual Fund Advisers Trust 0.79% 873,466 $16.2M
15 Ardsley Advisory Partners LP 0.77% 325,000 $6.0M
16 Register Financial Advisors LLC 0.71% 103,650 $1.9M
17 Conestoga Capital Advisors, LLC 0.68% 1,831,019 $34.0M
18 Maverick Capital Ltd 0.57% 2,649,879 $49.3M
19 Schwartz Investment Counsel Inc 0.56% 854,300 $15.9M
20 Tribune Investment Group LP 0.46% 65,000 $1.2M
21 Themes Management Co LLC 0.45% 38,837 $722K
22 Oberweis Asset Management Inc/ 0.41% 744,267 $13.8M
23 Segall Bryant & Hamill, LLC 0.40% 1,131,552 $24.5M
24 SCP Investment, LP 0.39% 18,800 $349K
25 Aperture Investors, LLC 0.36% 151,685 $2.8M
Investor Ownership
History 		% of Portfolio Prev % Rank Conviction Avg Buy Price 13F Score™ 3Y / 7Y Sell Timing Shares Mkt Value Change Change % Source Quarter Filed

Frequently Asked Questions — Mirion Technologies Inc (MIR)

What does the Smart Money Trend signal show for MIR?

Selling streak — 1 quarter in a row: For 1 consecutive quarter, more hedge funds reduced or closed their MIR positions than added to them. Sustained institutional selling is a meaningful warning sign — these are professionals with deep research teams collectively deciding to exit.

What is the institutional breadth score for MIR?

Slight buying edge — 50% buying: Last quarter: 201 funds bought or added vs 198 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.

What is the fund quality score for MIR holders?

Strong quality — 38% AUM from major funds: 53 of 356 holders rank in the top 100 by AUM, accounting for 38% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.

How long have hedge funds held MIR?

Mixed — 39% long-term, 31% new: Of the 359 current holders: 139 (39%) held >2 years, 109 held 1–2 years, and 111 entered in the last year. A mixed base — the stock has long-term believers but also recent buyers who haven't been tested by a downturn yet.

Is it too late to buy Mirion Technologies Inc (MIR) following the 2026 Q1 hedge fund 13F filings?

As of today, MIR has moved -7.8% since the 2026 Q1 13F filing date (May 15, 2026), compared to +4.2% for the XLI sector ETF — an outperformance of -12.0%. Since the quarter end (March 31, 2026), MIR has gained -9.8% vs +10.5% for XLI. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

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