Ticker · CUSIP 57667T100
Holders (tracked)
5
Combined shares
1,031,473
Combined value
$5.72M
Last close
$5.31
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -4.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
8 events
- +13,443 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+106,271 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+18,400 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−7,400 shares · 2025Q413F
- Cathie Wood (ARK Invest) trimmed2026-02-11−12,897 shares · 2025Q413F
- Two Sigma Investments trimmed2025-11-14−19,921 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−500 shares · 2025Q313F
- Cathie Wood (ARK Invest) trimmed2025-11-12−60,679 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of MTLS…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Izzy Englander (Millennium Mgmt) | 2017Q4 | $5.05 | +5.1% | $71K |
| Renaissance Technologies | 2016Q1 | $5.12 | +3.6% | $1.6M |
| Ken Griffin (Citadel Advisors) | 2020Q4 | $5.55 | -4.4% | $931K |
| Two Sigma Investments | 2018Q3 | $6.86 | -22.6% | $230K |
| Cathie Wood (ARK Invest) | 2016Q4 | $20.63 | -74.3% | $2.6M |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Izzy Englander (Millennium Mgmt)+13,443$75K
Added to2
- Ken Griffin (Citadel Advisors)+106,271$590K
- Two Sigma Investments+18,400$102K
Trimmed2
- Cathie Wood (ARK Invest)−12,897$72K
- Renaissance Technologies−7,400$41K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $125.1M |
| 2022Q2 | 9 | $101.1M |
| 2022Q3 | 6 | $70K |
| 2022Q4 | 9 | $36.5M |
| 2023Q1 | 9 | $18.7M |
| 2023Q2 | 9 | $31.2M |
| 2023Q3 | 9 | $16.8M |
| 2023Q4 | 9 | $16.3M |
| 2024Q1 | 9 | $10.9M |
| 2024Q2 | 8 | $11.5M |
| 2024Q3 | 8 | $11.2M |
| 2024Q4 | 8 | $11.0M |
| 2025Q1 | 7 | $5.2M |
| 2025Q2 | 6 | $6.1M |
| 2025Q3 | 5 | $5.2M |
| 2025Q4 | 5 | $5.7M |
Who owns MTLS
5 super-investors · 2025Q4
Tracked stake
1.03M
shares
Combined value
$6M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Cathie Wood ARK Invest | 492.9K | $3M |
| 2 | Renaissance Technologies | 306.4K | $2M |
| 3 | Ken Griffin Citadel Advisors | 175.3K | $973K |
| 4 | Two Sigma Investments | 43.4K | $241K |
| 5 | Izzy Englander Millennium Mgmt | 13.4K | $75K |
Recent moves
20 transactions
- +18,400 · 2025Q4
- +13,443 · 2025Q4
- +106,271 · 2025Q4
- −7,400 · 2025Q4
- −12,897 · 2025Q4
- −19,921 · 2025Q3
- −500 · 2025Q3
- −60,679 · 2025Q3
- −12,654 · 2025Q2
- +200 · 2025Q2
- −83,119 · 2025Q2
- +125,948 · 2025Q2
- −146,650 · 2025Q1
- −23,701 · 2025Q1
- −156,200 · 2025Q1
- −258,542 · 2025Q1
- +11,435 · 2024Q4
- +39,178 · 2024Q4
- −96,074 · 2024Q4
- −367,349 · 2024Q4
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