Ticker · CUSIP 81686C104
Holders (tracked)
11
Combined shares
4,428,928
Combined value
$52.30M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
21 events
- Ken Griffin (Citadel Advisors) added2026-02-17+351,394 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+119,140 shares · 2025Q413F
- Two Sigma Investments trimmed2026-02-17−94,104 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+151,509 shares · 2025Q413F
- Steve Cohen (Point72) exited2026-02-17−76,712 shares · 2025Q413F
- Wellington Management exited2026-02-17−1,735,367 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−116,970 shares · 2025Q413F
- +1,285,100 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+270,300 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+15,527 shares · 2025Q413F
- Mario Gabelli (GAMCO) opened position2026-02-05+91,634 shares · 2025Q413F
- −72,380 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−423,044 shares · 2025Q313F
- Two Sigma Investments added2025-11-14+144,522 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−51,092 shares · 2025Q313F
- Steve Cohen (Point72) opened position2025-11-14+76,712 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+382,450 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+459,973 shares · 2025Q313F
- T. Rowe Price added2025-11-14+7,105 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−269,600 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−15,527 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-10 | Mulroy Brian Chief Financial Officer · Officer | F | 3,941 | $11.94 | $47.1K |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions3
- George Soros (Soros Fund Mgmt)+1,285,100$15.3M
- Mario Gabelli (GAMCO)+91,634$1.1M
- Norges Bank (Norway SWF)+15,527$185K
Added to4
- Ken Griffin (Citadel Advisors)+351,394$4.2M
- Renaissance Technologies+270,300$3.2M
- Izzy Englander (Millennium Mgmt)+151,509$1.8M
- D.E. Shaw & Co.+119,140$1.4M
Trimmed2
- AQR Capital Management−116,970$1.4M
- Two Sigma Investments−94,104$1.1M
Exited2
- Wellington Management−1,735,367$12.3M
- Steve Cohen (Point72)−76,712$543K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 5 | $15.0M |
| 2022Q2 | 4 | $10.7M |
| 2022Q3 | 7 | $12K |
| 2022Q4 | 6 | $6.1M |
| 2023Q1 | 10 | $22.6M |
| 2023Q2 | 10 | $43.2M |
| 2023Q3 | 10 | $32.3M |
| 2023Q4 | 9 | $56.7M |
| 2024Q1 | 10 | $65.0M |
| 2024Q2 | 12 | $86.5M |
| 2024Q3 | 12 | $48.9M |
| 2024Q4 | 10 | $27.1M |
| 2025Q1 | 11 | $43.4M |
| 2025Q2 | 11 | $44.7M |
| 2025Q3 | 10 | $29.9M |
| 2025Q4 | 11 | $52.3M |
Who owns SEMR
11 super-investors · 2025Q4
Tracked stake
4.43M
shares
Combined value
$52M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added5Trim2Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | George Soros Soros Fund Mgmt | 1.29M | $15M |
| 2 | Izzy Englander Millennium Mgmt | 1.18M | $14M |
| 3 | Ken Griffin Citadel Advisors | 592.6K | $7M |
| 4 | D.E. Shaw & Co. | 536.3K | $6M |
| 5 | Renaissance Technologies | 453.0K | $5M |
| 6 | Two Sigma Investments | 159.3K | $2M |
| 7 | Mario Gabelli GAMCO | 91.6K | $1M |
| 8 | AQR Capital Management | 60.5K | $720K |
| 9 | Ken Griffin Citadel Advisors | 29.5K | $351K |
| 10 | Norges Bank Norway SWF | 15.5K | $185K |
| 11 | T. Rowe Price | 30.1K | $359 |
Recent moves
20 transactions
- +151,509 · 2025Q4
- −94,104 · 2025Q4
- −76,712 · 2025Q4
- −116,970 · 2025Q4
- +351,394 · 2025Q4
- −1,735,367 · 2025Q4
- +119,140 · 2025Q4
- +1,285,100 · 2025Q4
- +270,300 · 2025Q4
- +15,527 · 2025Q4
- +91,634 · 2025Q4
- −72,380 · 2025Q3
- +459,973 · 2025Q3
- +7,105 · 2025Q3
- −51,092 · 2025Q3
- +76,712 · 2025Q3
- +144,522 · 2025Q3
- +382,450 · 2025Q3
- −423,044 · 2025Q3
- −269,600 · 2025Q3
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