Ticker · CUSIP 61218C103
Holders (tracked)
8
Combined shares
842,785
Combined value
$1.35M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
13 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−4,686 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−30,929 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+6,260 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−176,085 shares · 2025Q413F
- Steve Cohen (Point72) opened position2026-02-17+10,418 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,921 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+6,300 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−14,343 shares · 2025Q313F
- Two Sigma Investments opened position2025-11-14+16,955 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−12,406 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+42,794 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−38,000 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−7,813 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Steve Cohen (Point72)+10,418$17K
Added to2
- Renaissance Technologies+6,300$11K
- Two Sigma Investments+6,260$10K
Trimmed4
- Izzy Englander (Millennium Mgmt)−176,085$294K
- D.E. Shaw & Co.−30,929$52K
- Ken Griffin (Citadel Advisors)−4,686$8K
- AQR Capital Management−1,921$3K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 5 | $34.2M |
| 2022Q2 | 8 | $1.68B |
| 2022Q3 | 7 | $92K |
| 2022Q4 | 10 | $51.1M |
| 2023Q1 | 11 | $35.8M |
| 2023Q2 | 10 | $37.2M |
| 2023Q3 | 11 | $48.7M |
| 2023Q4 | 9 | $48.0M |
| 2024Q1 | 10 | $24.8M |
| 2024Q2 | 11 | $34.1M |
| 2024Q3 | 5 | $3.8M |
| 2024Q4 | 5 | $2.2M |
| 2025Q1 | 5 | $1.1M |
| 2025Q2 | 6 | $1.9M |
| 2025Q3 | 7 | $2.0M |
| 2025Q4 | 8 | $1.4M |
Who owns MNTK
8 super-investors · 2025Q4
Tracked stake
842.8K
shares
Combined value
$1M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim4Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 342.7K | $572K |
| 2 | Ken Griffin Citadel Advisors | 200.0K | $334K |
| 3 | D.E. Shaw & Co. | 192.3K | $321K |
| 4 | Izzy Englander Millennium Mgmt | 25.6K | $43K |
| 5 | Two Sigma Investments | 23.2K | $39K |
| 6 | AQR Capital Management | 14.6K | $24K |
| 7 | Steve Cohen Point72 | 10.4K | $17K |
| 8 | T. Rowe Price | 33.9K | $57 |
Recent moves
20 transactions
- −1,921 · 2025Q4
- −176,085 · 2025Q4
- −4,686 · 2025Q4
- +10,418 · 2025Q4
- TRIMD.E. Shaw & Co.−30,929 · 2025Q4
- +6,260 · 2025Q4
- +6,300 · 2025Q4
- TRIMT. Rowe Price−38,000 · 2025Q3
- −14,343 · 2025Q3
- +16,955 · 2025Q3
- −12,406 · 2025Q3
- +42,794 · 2025Q3
- −7,813 · 2025Q3
- +193,185 · 2025Q2
- −616 · 2025Q2
- TRIMD.E. Shaw & Co.−9,869 · 2025Q2
- +6,045 · 2025Q2
- +59,713 · 2025Q2
- −41,529 · 2025Q1
- −10,365 · 2025Q1
Embed this chart
Paste this iframe anywhere to embed the live MNTK chart.
<iframe src="https://openstocks.me/embed/stock/MNTK" width="100%" height="480" frameborder="0" loading="lazy" title="MNTK chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>