Ticker · CUSIP 829073105
Holders (tracked)
12
Combined shares
2,728,064
Combined value
$397.36M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
28 events
- D.E. Shaw & Co. trimmed2026-02-17−17,127 shares · 2025Q413F
- Two Sigma Investments added2026-02-17+14,601 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−6,962 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+18,675 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−125,937 shares · 2025Q413F
- Wellington Management exited2026-02-17−35,900 shares · 2025Q413F
- +2,271 shares · 2025Q413F
- AQR Capital Management added2026-02-17+125,584 shares · 2025Q413F
- ValueAct Holdings added2026-02-17+264,200 shares · 2025Q413F
- Steve Cohen (Point72) exited2026-02-17−49,583 shares · 2025Q413F
- John Rogers (Ariel Investments) trimmed2026-02-13−1,461 shares · 2025Q413F
- Renaissance Technologies opened position2026-02-12+21,000 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+527,280 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) exited2026-02-09−143,661 shares · 2025Q413F
- −10,579 shares · 2025Q313F
- AQR Capital Management added2025-11-14+25,862 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−21,795 shares · 2025Q313F
- Steve Cohen (Point72) trimmed2025-11-14−163,953 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−6,501 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−63,151 shares · 2025Q313F
- T. Rowe Price added2025-11-14+616 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−29,159 shares · 2025Q313F
- John Rogers (Ariel Investments) trimmed2025-11-14−15,763 shares · 2025Q313F
- ValueAct Holdings trimmed2025-11-14−198,163 shares · 2025Q313F
- Renaissance Technologies exited2025-11-13−11,700 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−499,184 shares · 2025Q313F
- Norges Bank (Norway SWF) trimmed2025-11-12−12,228 shares · 2024Q313F
- Ken Fisher (Fisher Asset Mgmt) added2025-11-12+7,656 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 positions3
- Norges Bank (Norway SWF)+527,280$85.1M
- Renaissance Technologies+21,000$3.4M
- Paul Tudor Jones (Tudor Investment)+2,271$367K
Added to4
- ValueAct Holdings+264,200$42.7M
- AQR Capital Management+125,584$20.3M
- Izzy Englander (Millennium Mgmt)+18,675$3.0M
- Two Sigma Investments+14,601$2.4M
Trimmed4
- D.E. Shaw & Co.−17,127$2.8M
- Ken Griffin (Citadel Advisors)−6,962$1.1M
- John Rogers (Ariel Investments)−1,461$236K
- T. Rowe Price−125,937$20K
Exited3
- Ken Fisher (Fisher Asset Mgmt)−143,661$24.1M
- Steve Cohen (Point72)−49,583$8.3M
- Wellington Management−35,900$6.0M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 13 | $45.11B |
| 2022Q2 | 12 | $40.98B |
| 2022Q3 | 14 | $31.9M |
| 2022Q4 | 14 | $538.5M |
| 2023Q1 | 13 | $663.1M |
| 2023Q2 | 14 | $839.2M |
| 2023Q3 | 15 | $899.7M |
| 2023Q4 | 13 | $1.27B |
| 2024Q1 | 11 | $1.32B |
| 2024Q2 | 15 | $893.4M |
| 2024Q3 | 12 | $230.7M |
| 2024Q4 | 13 | $181.6M |
| 2025Q1 | 13 | $120.6M |
| 2025Q2 | 15 | $423.8M |
| 2025Q3 | 13 | $291.5M |
| 2025Q4 | 12 | $397.4M |
Who owns SSD
12 super-investors · 2025Q4
Tracked stake
2.73M
shares
Combined value
$397M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added4Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | ValueAct Holdings | 1.47M | $238M |
| 2 | Norges Bank Norway SWF | 527.3K | $85M |
| 3 | AQR Capital Management | 158.3K | $26M |
| 4 | D.E. Shaw & Co. | 100.7K | $16M |
| 5 | John Rogers Ariel Investments | 91.4K | $15M |
| 6 | Ken Griffin Citadel Advisors | 31.3K | $5M |
| 7 | Izzy Englander Millennium Mgmt | 23.2K | $4M |
| 8 | Two Sigma Investments | 23.0K | $4M |
| 9 | Renaissance Technologies | 21.0K | $3M |
| 10 | Ken Griffin Citadel Advisors | 10.0K | $2M |
| 11 | Paul Tudor Jones Tudor Investment | 2.3K | $367K |
| 12 | T. Rowe Price | 267.4K | $43K |
Recent moves
20 transactions
- +125,584 · 2025Q4
- −49,583 · 2025Q4
- TRIMT. Rowe Price−125,937 · 2025Q4
- −35,900 · 2025Q4
- +264,200 · 2025Q4
- −6,962 · 2025Q4
- +14,601 · 2025Q4
- +18,675 · 2025Q4
- TRIMD.E. Shaw & Co.−17,127 · 2025Q4
- +2,271 · 2025Q4
- −1,461 · 2025Q4
- +21,000 · 2025Q4
- +527,280 · 2025Q4
- −143,661 · 2025Q4
- −10,579 · 2025Q3
- −21,795 · 2025Q3
- −163,953 · 2025Q3
- −6,501 · 2025Q3
- TRIMD.E. Shaw & Co.−63,151 · 2025Q3
- +616 · 2025Q3
Embed this chart
Paste this iframe anywhere to embed the live SSD chart.
<iframe src="https://openstocks.me/embed/stock/SSD" width="100%" height="480" frameborder="0" loading="lazy" title="SSD chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>