144 ·Filed Jul 13, 2026

RBRK

Rubrik, Inc.
NEUTRAL
Impact 2/10
Horizonimmediate Processed2mo ago SEC0001628280-26-048065
Actionable Insight • Neutral

The sale is de minimis and likely a routine distribution by a pre-IPO VC investor. No immediate trading signal. Monitor for any larger insider sales or lock-up expirations that could indicate broader selling pressure.

DirectionNeutral
Confidencehigh
Horizonimmediate
Latest settled — T+20d ⚠ clustered
RBRK ▲ +10.09% at T+20d
NEUTRAL call ✓ call won +10.09% · α vs SPY +7.59% · entry $88.05 → $96.93
Next anchor: T+60d in 4d
Latest observation: T+57 -25.13% FF3 residual α
Entry anchored
Jul 13, 03:59 PM ET
via exchange tick
T+1d
-8.71%
call -8.71% · α -9.11%
$80.38
settled 3mo ago
T+5d
-11.21%
call -11.21% · α -9.91%
$78.18
settled 2mo ago
T+20d
+10.09%
call +10.09% · α +7.59%
$96.93
settled 8w ago
T+60d
—
call — · α —
—
in 4d

Price Chart

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Executive Summary

Lightspeed Venture Partners affiliates (Lightspeed General Partner IX, Lightspeed Management Company, and Lightspeed General Partner Select II) filed Form 144 notices to sell a combined 11,726 Class A shares of Rubrik, Inc., with an estimated total value of approximately $982,638. The shares were acquired in a 2014 private placement, and the proposed sale is tiny relative to Rubrik's $17.4B market cap, representing a routine affiliate distribution rather than a material insider signal.

Key Facts

  • Three Lightspeed affiliates filed Form 144 on July 13, 2026, proposing to sell 11,726 Class A shares in aggregate.
  • Estimated total sale value is approximately $982,638 (Lightspeed GP IX: 7,592 shares / $636,210; Lightspeed Management: 3,979 shares / $333,440; Lightspeed GP Select II: 155 shares / $12,989).
  • All shares were originally acquired in a private placement on January 27, 2014, and are being sold through Merrill Lynch.
  • The proposed sale represents less than 0.006% of Rubrik's $17.4B market cap, making it immaterial in size.

Financial Impact

Proposed sale of ~$982,638 in Class A shares, negligible relative to $17.4B market cap.

dilution

Risk Factors

  • None material from this filing; the sale is too small to affect supply/demand dynamics.

Market Snapshot

Exchange
NYSE
Sector
Services-Prepackaged Software
Analyst Consensus
97% bullish (34 analysts)

Investment Themes

Software & IT

Documents Analyzed

This report is based on 18 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (RBRK) — Batch item 10001628280-26-048065
Document: 0001628280-26-048065-index.html0001628280-26-048064
Document: 0001628280-26-048065.txt0001628280-26-048063
144 Filing (RBRK) — Batch item 40001628280-26-048064
Document: 0001628280-26-048064-index.html0001628280-26-048064
Document: 0001628280-26-048064.txt0001628280-26-048063
144 Filing (RBRK) — Batch item 70001628280-26-048063
Document: 0001628280-26-048063-index.html0001628280-26-048065
Document: 0001628280-26-048063.txt0001628280-26-048065
144 Filing (RBRK) — Batch item 100001628280-26-048065
Document: 0001628280-26-048065-index.html0001628280-26-048065
Document: 0001628280-26-048065.txt0001628280-26-048065
144 Filing (RBRK) — Batch item 130001628280-26-048064
Document: 0001628280-26-048064-index.html0001628280-26-048065
Document: 0001628280-26-048064.txt0001628280-26-048065
144 Filing (RBRK) — Batch item 160001628280-26-048063
Document: 0001628280-26-048063-index.html0001628280-26-048065
Document: 0001628280-26-048063.txt0001628280-26-048065
23 reports for RBRK
Performance horizon
100% Hit rate 3 of 3 directional calls best @ T+60▲ +27.23%Feb 28, 2026
Filters
Rows
Reports for RBRK — sortable, filterable
TypeNow
Sep 11, 2026
21d ago
Insider Cluster
NEUTRAL ★ 2/10
$86.65 $106.71▲ +23.15%▲ +23.37%$118.58 (+36.85%)
Sep 4, 2026
28d ago
Insider Cluster
NEUTRAL ★ 2/10
$93.67 $100.20▲ +6.97%▲ +8.18%$118.58 (+26.59%)
Aug 28, 2026
4w ago
3
NEUTRAL ★ 2/10
$93.04 $91.44▼ −1.72%▼ −1.58%$118.58 (+27.45%)
Aug 5, 2026
8w ago
Insider Cluster
NEUTRAL ★ 2/10
$84.60 $105.09▲ +24.22%▲ +23.01%$118.58 (+40.17%)
Aug 4, 2026
8w ago
Insider Cluster
NEUTRAL ★ 2/10
$84.81 $96.73▲ +14.05%▲ +13.70%$118.58 (+39.82%)
Jul 16, 2026
11w ago
Insider Cluster
NEUTRAL ★ 4/10
$79.82 $72.63▼ −9.01%▼ −7.34%$118.58 (+48.56%)
Jul 14, 2026
11w ago
Insider Cluster
NEUTRAL ★ 2/10
$88.05 $78.18▼ −11.21%▼ −9.91%$118.58 (+34.67%)
Jul 13, 2026
11w ago
144
NEUTRAL ★ 2/10
$88.05 $78.18▼ −11.21%▼ −9.91%$118.58 (+34.67%)
Jul 8, 2026
12w ago
Insider Cluster
NEUTRAL ★ 3/10
$88.75 $79.82▼ −10.06%▼ −9.93%$118.58 (+33.61%)
Jul 1, 2026
13w ago
Insider Cluster
NEUTRAL ★ 2/10
$83.64 $88.75▲ +6.11%▲ +5.18%$118.58 (+41.77%)
Showing 10 of 23

US Market Status

Market Closed — Opens Mon (65h)

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