Lightspeed's coordinated 144 filings signal a planned monetization of a pre-IPO position. While the ~$161M represents less than 1% of market cap, the fact that a major early investor is taking chips off the table could weigh on sentiment. Monitor for actual execution of the sale and any additional Lightspeed filings. The stock's strong institutional support (97% analyst bullish) may absorb the selling, but the signal from a venture backer reducing its stake is a modest negative.
Price Chart
Executive Summary
Three Lightspeed-affiliated entities (Lightspeed General Partner IX, L.P., Lightspeed Management Company, L.L.C., and Lightspeed General Partner Select II, L.P.) filed Form 144 notices on June 26, 2026, signaling intent to sell a combined 11,726 Class A shares of Rubrik, Inc. with an aggregate market value of approximately $161 million at the current $16.9B market cap. This coordinated filing by a major pre-IPO venture investor represents a material monetization event, though the shares were acquired in a 2014 private placement and the sale is being executed through a single broker (Merrill Lynch).
Key Facts
- Three Lightspeed entities filed Form 144 on June 26, 2026, signaling intent to sell a combined 11,726 Class A shares of Rubrik.
- Lightspeed General Partner IX, L.P. intends to sell 7,592 shares (~$104.3M at the implied ~$13,740/share reference price).
- Lightspeed Management Company, L.L.C. intends to sell 3,979 shares (~$54.7M).
- Lightspeed General Partner Select II, L.P. intends to sell 155 shares (~$2.1M).
- All shares were acquired in a private placement on January 27, 2014, and are being sold through Merrill Lynch.
- The aggregate proposed sale value is approximately $161 million, representing roughly 0.95% of Rubrik's $16.9B market cap.
- The filing is an advance notice of intent to sell; the actual sale may or may not occur.
Financial Impact
Approximately $161 million in potential selling pressure from Lightspeed entities, representing ~0.95% of market cap.
Risk Factors
- Additional selling by Lightspeed or other early investors could follow.
- The actual sale may be executed over time, creating overhang.
- Insider selling ahead of potential lock-up expirations or earnings could signal reduced conviction.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 9 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (RBRK) — Batch item 1 | 0001628280-26-045793 |
| Document: 0001628280-26-045793-index.html | 0001628280-26-045792 |
| Document: 0001628280-26-045793.txt | 0001628280-26-045791 |
| 144 Filing (RBRK) — Batch item 4 | 0001628280-26-045792 |
| Document: 0001628280-26-045792-index.html | 0001628280-26-045793 |
| Document: 0001628280-26-045792.txt | 0001628280-26-045793 |
| 144 Filing (RBRK) — Batch item 7 | 0001628280-26-045791 |
| Document: 0001628280-26-045791-index.html | 0001628280-26-045793 |
| Document: 0001628280-26-045791.txt | 0001628280-26-045793 |
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| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 21d ago | Insider Cluster | $86.65 $106.71 | ▲ +23.15% | ▲ +23.37% | $118.58 (+36.85%) |
Sep 4, 2026 28d ago | Insider Cluster | $93.67 $100.20 | ▲ +6.97% | ▲ +8.18% | $118.58 (+26.59%) |
Aug 28, 2026 4w ago | 3 | $93.04 $91.44 | ▼ −1.72% | ▼ −1.58% | $118.58 (+27.45%) |
Aug 5, 2026 8w ago | Insider Cluster | $84.60 $105.09 | ▲ +24.22% | ▲ +23.01% | $118.58 (+40.17%) |
Aug 4, 2026 8w ago | Insider Cluster | $84.81 $96.73 | ▲ +14.05% | ▲ +13.70% | $118.58 (+39.82%) |
Jul 16, 2026 11w ago | Insider Cluster | $79.82 $72.63 | ▼ −9.01% | ▼ −7.34% | $118.58 (+48.56%) |
Jul 14, 2026 11w ago | Insider Cluster | $88.05 $78.18 | ▼ −11.21% | ▼ −9.91% | $118.58 (+34.67%) |
Jul 13, 2026 11w ago | 144 | $88.05 $78.18 | ▼ −11.21% | ▼ −9.91% | $118.58 (+34.67%) |
Jul 8, 2026 12w ago | Insider Cluster | $88.75 $79.82 | ▼ −10.06% | ▼ −9.93% | $118.58 (+33.61%) |
Jul 1, 2026 13w ago | Insider Cluster | $83.64 $88.75 | ▲ +6.11% | ▲ +5.18% | $118.58 (+41.77%) |
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