Ticker · CUSIP 836100107
Holders (tracked)
13
Combined shares
11,636,877
Combined value
$112.47M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
SEC event timeline
13 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−1,886,132 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−717,173 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+522,983 shares · 2025Q413F
- T. Rowe Price trimmed2026-02-17−6,419,952 shares · 2025Q413F
- Wellington Management exited2026-02-17−401,981 shares · 2025Q413F
- +41,000 shares · 2025Q413F
- AQR Capital Management added2026-02-17+20,241 shares · 2025Q413F
- −237,049 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−716,651 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+988,473 shares · 2025Q313F
- T. Rowe Price added2025-11-14+6,470,590 shares · 2025Q313F
- Wellington Management added2025-11-14+1,860 shares · 2025Q313F
- AQR Capital Management added2025-11-14+14,115 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
- Paul Tudor Jones (Tudor Investment)+41,000$409K
Added to2
- Izzy Englander (Millennium Mgmt)+522,983$5.2M
- AQR Capital Management+20,241$202K
Trimmed3
- Ken Griffin (Citadel Advisors)−1,886,132$18.8M
- D.E. Shaw & Co.−717,173$7.2M
- T. Rowe Price−6,419,952$64K
Exited1
- Wellington Management−401,981$6.5M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q2 | 3 | $5.1M |
| 2022Q3 | 1 | $6K |
| 2022Q4 | 2 | $3.2M |
| 2023Q1 | 5 | $6.5M |
| 2023Q2 | 6 | $45.4M |
| 2023Q3 | 5 | $22.8M |
| 2023Q4 | 8 | $25.9M |
| 2024Q1 | 8 | $90.4M |
| 2024Q2 | 10 | $94.1M |
| 2024Q3 | 7 | $15.4M |
| 2024Q4 | 8 | $196.9M |
| 2025Q1 | 16 | $163.5M |
| 2025Q2 | 15 | $113.4M |
| 2025Q3 | 11 | $302.3M |
| 2025Q4 | 13 | $112.5M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-12-15 | Cleo Fields | Sell | $1K – $15K | PDF ↗ |
| 2025-07-16 | Cleo Fields | Buy | $1K – $15K | PDF ↗ |
Who owns SOUN
13 super-investors · 2025Q4
Tracked stake
11.64M
shares
Combined value
$112M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added3Trim7Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | D.E. Shaw & Co. | 4.31M | $43M |
| 2 | Ken Griffin Citadel Advisors | 3.61M | $36M |
| 3 | Ken Griffin Citadel Advisors | 1.39M | $14M |
| 4 | Izzy Englander Millennium Mgmt | 649.5K | $6M |
| 5 | D.E. Shaw & Co. | 359.9K | $4M |
| 6 | Izzy Englander Millennium Mgmt | 300.6K | $3M |
| 7 | Ken Griffin Citadel Advisors | 277.7K | $3M |
| 8 | D.E. Shaw & Co. | 182.9K | $2M |
| 9 | AQR Capital Management | 86.9K | $867K |
| 10 | Steve Cohen Point72 | 61.2K | $610K |
| 11 | Paul Tudor Jones Tudor Investment | 21.7K | $216K |
| 12 | Paul Tudor Jones Tudor Investment | 19.3K | $192K |
| 13 | T. Rowe Price | 356.9K | $4K |
Recent moves
20 transactions
- TRIMD.E. Shaw & Co.−717,173 · 2025Q4
- −1,886,132 · 2025Q4
- +522,983 · 2025Q4
- +41,000 · 2025Q4
- +20,241 · 2025Q4
- TRIMT. Rowe Price−6,419,952 · 2025Q4
- −401,981 · 2025Q4
- −237,049 · 2025Q3
- +6,470,590 · 2025Q3
- +1,860 · 2025Q3
- −716,651 · 2025Q3
- +988,473 · 2025Q3
- +14,115 · 2025Q3
- +49,319 · 2025Q2
- −17,340 · 2025Q2
- −116,705 · 2025Q2
- −1,425,245 · 2025Q2
- TRIMD.E. Shaw & Co.−6,411,548 · 2025Q2
- −202,078 · 2025Q2
- +13,499 · 2025Q2
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