Data / Ownership
Who is buying and selling the names we track.
How many shares are sold shortwe gathered it
3,345,857 shares
since 20 Sept 2026as of 2026-09-20
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Range
Ciena had 3,345,857 shares sold short at the last settlement.
3,345,857 shareswe gathered itall
3,345,857
2,921,4003,189,3473,457,2943,725,2413,993,1882026-07-152026-08-31
FINRA · monthly · history from the source back to 15 Jul 2026 · since 20 Sept 2026
Last observations
4 of 4| Day | shares | Change | Source |
|---|---|---|---|
| 2026-08-31 | 3,345,857 | +14.5% | FINRA |
| 2026-08-14 | 2,921,400 | −21.3% | FINRA |
| 2026-07-31 | 3,711,106 | −7.1% | FINRA |
| 2026-07-15 | 3,993,188 | — | FINRA |
What happened
on this beat, newest first| Day | Company | What happened | Where we read it |
|---|---|---|---|
| 2026-09-21 | IMPINJ INC | Baker Cary sold 8,892 shares at $185 | SEC EDGAR |
| 2026-09-21 | SYNAPTICS Inc | Patel Rahul G. sold 2,276 shares at $93.83 | SEC EDGAR |
| 2026-09-19 | Hesai Group | Fan Peng bought 50,000 shares | SEC EDGAR |
| 2026-09-18 | Globalstar, Inc. | Lynch James F sold 361,600 shares at $82.52 | SEC EDGAR |
| 2026-09-18 | Planet Labs PBC | Marshall William Spencer sold 80,000 shares | SEC EDGAR |
| 2026-09-18 | Globalstar, Inc. | Monroe James III bought 361,600 shares at $82.52 | SEC EDGAR |
| 2026-09-18 | AMBARELLA INC | Young John Alexander sold 1,896 shares at $67.28 | SEC EDGAR |
| 2026-09-18 | CoreWeave, Inc. | Magnetar Financial LLC filed a Form 4 with no trade on it | SEC EDGAR |
- 2026-09-21IMPINJ INC
Baker Cary sold 8,892 shares at $185
- 2026-09-21SYNAPTICS Inc
Patel Rahul G. sold 2,276 shares at $93.83
- 2026-09-19Hesai Group
Fan Peng bought 50,000 shares
- 2026-09-18Globalstar, Inc.
Lynch James F sold 361,600 shares at $82.52
- 2026-09-18Planet Labs PBC
Marshall William Spencer sold 80,000 shares
- 2026-09-18Globalstar, Inc.
Monroe James III bought 361,600 shares at $82.52
- 2026-09-18AMBARELLA INC
Young John Alexander sold 1,896 shares at $67.28
- 2026-09-18CoreWeave, Inc.
Magnetar Financial LLC filed a Form 4 with no trade on it
Where it comes from
the sources and this month's misses| Source | Cadence | Rows this month | Last fetch | Misses |
|---|---|---|---|---|
| FINRAshort-interest line per company/beat | monthly | 448 | 2026-09-20 | 0 |
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