Insider profile
MILLENNIUM MANAGEMENT LLC Insider Trading
This page tracks every SEC Form 4 filing since April 2023 by MILLENNIUM MANAGEMENT LLC: 52 transactions in total, including 26 open-market purchases and 25 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.
- CIK
- 0001273087
- Companies traded
- 1
- Total filings
- 52
- First filing
- 2022-12-28
- Last filing
- 2026-04-07
Files as MILLENNIUM MANAGEMENT LLC · SEC EDGAR ↗
Activity summary
The most recent open-market activity, on April 7, 2026, was mixed: 1 purchase totaling 1,108 shares ($37K) and 5 sales totaling 8,151 shares ($253K).
Three year balance
Buy and sell value by quarter, Q3 23 to Q2 26. MILLENNIUM MANAGEMENT LLC has been a net buyer across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $987K.
Insider insight
MILLENNIUM MANAGEMENT LLC trades most actively in SNSE, accounting for 50 of the 52 filings on record. The largest single open-market purchase on record is $280K in SNSE, filed Mar 2026.
Track record
Most active in
Avg buy vs sell price
Average prices across open-market transactions in this dataset.
Transaction History
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Apr 7, 2026 | MILLENNIUM MANAGEMENT LLC | SNSE | Sale | 1,108 | $33.38 | $37K |
| Apr 7, 2026 | MILLENNIUM MANAGEMENT LLC | SNSE | Sale | 2,115 | $28.94 | $61K |
| Apr 7, 2026 | MILLENNIUM MANAGEMENT LLC | SNSE | Purchase | 1,108 | $33.38 | $37K |
| Apr 7, 2026 | MILLENNIUM MANAGEMENT LLC | SNSE | Sale | 4,423 | $31.38 | $139K |
| Apr 7, 2026 | MILLENNIUM MANAGEMENT LLC | SNSE | Sale | 205 | $29.71 | $6K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Companies traded
By number of filings.
Based on the last 50 filings on file — this insider has a longer history.
Filing cadence
Filings per quarter, this window.
Busiest: Q1 26 (28 filings)
Quietest: Q2 26 (22 filings)
Based on the last 50 filings on file — this insider has a longer history.
Reading an insider's Form 4 history
Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.
The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.