Ticker · CUSIP 604749101
Holders (tracked)
15
Combined shares
6,053,178
Combined value
$366.06M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+4 vs previous quarter over the last 8.
SEC event timeline
22 events
- Ramasastry Saira2026-04-15Sold $193.8K @ $96.90Insider sell
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−200,324 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+24,652 shares · 2025Q413F
- +5,205 shares · 2025Q413F
- AQR Capital Management added2026-02-17+1,090 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+45,416 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−64,758 shares · 2025Q413F
- Steve Cohen (Point72) trimmed2026-02-17−600,037 shares · 2025Q413F
- T. Rowe Price added2026-02-17+137,087 shares · 2025Q413F
- Wellington Management added2026-02-17+447,141 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−74,363 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+263,175 shares · 2025Q413F
- +14,089 shares · 2025Q413F
- AQR Capital Management trimmed2025-11-14−16,121 shares · 2025Q313F
- Steve Cohen (Point72) added2025-11-14+531,809 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+171,312 shares · 2025Q313F
- Wellington Management added2025-11-14+672,118 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+20,872 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+368,552 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−133,927 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+117,100 shares · 2025Q313F
- Norges Bank (Norway SWF) opened position2025-11-12+248,157 shares · 2024Q313F
Insider activity
Last 30 days
Net (open-market)
−$193.8K
Buys
0 · $0
Sells
1 · $193.8K
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-15 | Ramasastry Saira Insider | M | 2,000 | $23.51 | $47.0K |
| 04-15 | Ramasastry Saira Insider | S | 2,000 | $96.90 | $193.8K |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions3
- Norges Bank (Norway SWF)+263,175$20.8M
- Ken Fisher (Fisher Asset Mgmt)+14,089$1.1M
- Paul Tudor Jones (Tudor Investment)+5,205$411K
Added to5
- Wellington Management+447,141$35.3M
- Two Sigma Investments+45,416$3.6M
- D.E. Shaw & Co.+24,652$1.9M
- AQR Capital Management+1,090$86K
- T. Rowe Price+137,087$11K
Trimmed4
- Steve Cohen (Point72)−600,037$47.4M
- Ken Griffin (Citadel Advisors)−200,324$15.8M
- Renaissance Technologies−74,363$5.9M
- Izzy Englander (Millennium Mgmt)−64,758$5.1M
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 9 | $38.2M |
| 2022Q2 | 7 | $42.9M |
| 2022Q3 | 8 | $62K |
| 2022Q4 | 9 | $79.6M |
| 2023Q1 | 10 | $92.0M |
| 2023Q2 | 10 | $109.0M |
| 2023Q3 | 11 | $137.5M |
| 2023Q4 | 9 | $129.0M |
| 2024Q1 | 9 | $117.6M |
| 2024Q2 | 9 | $183.7M |
| 2024Q3 | 10 | $101.1M |
| 2024Q4 | 10 | $102.8M |
| 2025Q1 | 11 | $147.3M |
| 2025Q2 | 11 | $166.5M |
| 2025Q3 | 11 | $350.2M |
| 2025Q4 | 15 | $366.1M |
Who owns MIRM
15 super-investors · 2025Q4
Tracked stake
6.05M
shares
Combined value
$366M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added5Trim7
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Wellington Management | 1.24M | $98M |
| 2 | D.E. Shaw & Co. | 948.2K | $75M |
| 3 | Ken Griffin Citadel Advisors | 840.2K | $66M |
| 4 | Renaissance Technologies | 439.1K | $35M |
| 5 | Two Sigma Investments | 388.5K | $31M |
| 6 | Norges Bank Norway SWF | 263.2K | $21M |
| 7 | Izzy Englander Millennium Mgmt | 244.3K | $19M |
| 8 | Steve Cohen Point72 | 190.6K | $15M |
| 9 | AQR Capital Management | 32.5K | $3M |
| 10 | Ken Fisher Fisher Asset Mgmt | 14.1K | $1M |
| 11 | Ken Griffin Citadel Advisors | 12.7K | $1M |
| 12 | Steve Cohen Point72 | 8.2K | $648K |
| 13 | Steve Cohen Point72 | 8.2K | $648K |
| 14 | Paul Tudor Jones Tudor Investment | 5.2K | $411K |
| 15 | T. Rowe Price | 1.42M | $112K |
Recent moves
20 transactions
- −64,758 · 2025Q4
- +1,090 · 2025Q4
- +447,141 · 2025Q4
- −600,037 · 2025Q4
- −200,324 · 2025Q4
- +137,087 · 2025Q4
- +45,416 · 2025Q4
- +5,205 · 2025Q4
- +24,652 · 2025Q4
- −74,363 · 2025Q4
- +263,175 · 2025Q4
- +14,089 · 2025Q4
- +531,809 · 2025Q3
- TRIMT. Rowe Price−133,927 · 2025Q3
- +368,552 · 2025Q3
- +20,872 · 2025Q3
- +171,312 · 2025Q3
- +672,118 · 2025Q3
- −16,121 · 2025Q3
- +117,100 · 2025Q3
Embed this chart
Paste this iframe anywhere to embed the live MIRM chart.
<iframe src="https://openstocks.me/embed/stock/MIRM" width="100%" height="480" frameborder="0" loading="lazy" title="MIRM chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>