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RBRKRubrik, Inc. · Insider ownership research

Rubrik, Inc. insiders sold $68.9M in the past 12 months. How much of their stake is that?

About 3.5% overall. As a group they ended with more shares than they started with.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 150 of the 311 other companies we can measure (#162 of 312)See ranking
1
buyer among officers and directors (1 trade), past 12 months
85%
of sales were under disclosed trading plans, past 12 months
5 of 12
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Oct 7, 2026Arvind Nithrakashyap sold 13K shares ($1.6M) under a disclosed trading plan. That is 0.1% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Arvind Nithrakashyap
Chief Technology Officer, Director
12,820$124.140.1%10.47MOct 7, 2026Oct 7, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Oct 6, 2026Arvind Nithrakashyap sold 13K shares ($1.6M) under a disclosed trading plan. That is 0.1% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Arvind Nithrakashyap
Chief Technology Officer, Director
12,820$126.170.1%10.49MOct 6, 2026Oct 7, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Oct 5, 20262 insiders sold 14K shares ($1.7M) under a disclosed trading plan. That is between 0.1% and 2.0% of each person's total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Arvind Nithrakashyap
Chief Technology Officer, Director
12,820$122.640.1%10.50MOct 5, 2026Oct 7, 2026
Yvonne Wassenaar
Director
721$119.002.0%36KOct 5, 2026Oct 6, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Oct 1, 2026John Thompson sold 14K shares ($1.6M) under a disclosed trading plan. That is 1.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
John Thompson
Director
13,500$115.691.5%877KOct 1, 2026Oct 2, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 25, 2026Bipul Sinha gave away 55K shares as a gift. That is 0.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Bipul Sinha
Chairman of the Board and CEO, Director
55,000n/a0.5%11.24MSep 25, 2026Sep 25, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 17, 2026Kiran Choudary sold 6K shares ($644K) under a disclosed trading plan. That is 0.6% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Kiran Choudary
Chief Financial Officer
6,000$107.320.6%958KSep 17, 2026Sep 17, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 15, 20262 executives had 24K shares ($2.4M) withheld by the company for taxes (not a market sale). That is between 0.1% and 1.4% of each person's total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Kiran Choudary
Chief Financial Officer
13,995$100.201.4%964KSep 15, 2026Sep 17, 2026
Arvind Nithrakashyap
Chief Technology Officer, Director
10,436$100.200.1%10.51MSep 15, 2026Sep 17, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 15, 2026Kiran Choudary sold 4K shares ($404K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Kiran Choudary
Chief Financial Officer
4,000$101.050.4%964KSep 15, 2026Sep 17, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 10, 2026Arvind Nithrakashyap sold 13K shares ($1.2M) under a disclosed trading plan. That is 0.1% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Arvind Nithrakashyap
Chief Technology Officer, Director
12,820$90.410.1%10.52MSep 10, 2026Sep 10, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Sep 9, 2026Arvind Nithrakashyap sold 13K shares ($1.2M) under a disclosed trading plan. That is 0.1% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Arvind Nithrakashyap
Chief Technology Officer, Director
12,820$90.460.1%10.53MSep 9, 2026Sep 10, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Not enough history to compare: fewer than three earlier years of filings. Year by year
Latest filing: Filed Oct 7 for a sale from Oct 5 to Oct 7. Arvind Nithrakashyap sold 38K shares ($4.8M) under a disclosed plan. Filing
73 SEC ownership filings in the period · See the evidence

What stands out

Kiran Choudary sold 50% of vested holdings: 258K shares for $15.9M, 59% under a disclosed plan.Largest sale, Mar 24, 2026
Mark McLaughlin bought 11K shares for $502K, first on Mar 30, 2026. These are the first purchases by current officers or directors in the filings on record.Purchase, Mar 30, 2026
Brian McCarthy sold 45K shares (12% of starting holdings), but 448K more vested, so the stake grew (from 369K to 773K).Largest sale, Oct 13, 2025

Percentages cover 11 of 12 officers and directors. Left out: Rakefet Russak-Aminoach (held no vested shares at the start). Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period
Arvind Nithrakashyap
Chief Technology Officer, Director
4.1% · $37.7M90% planned
Kiran Choudary
Chief Financial Officer
50% · $15.9M59% planned
John Thompson
Director
17% · $11.2MDisclosed plan
Brian McCarthy
Pres.,Global Sales & Field Ops
12% · $3.6M90% planned
Yvonne Wassenaar
Director
18% · $585KDisclosed plan
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed
Oct 2025: $1.1M under a disclosed planOctNov 2025: $1.9M under a disclosed planNovDec 2025: $2.1M under a disclosed planDec 2025: $3.3M to cover taxesDecJan 2026: $3.7M under a disclosed planJanFeb 2026: $1.8M under a disclosed planFebMar 2026: $724K under a disclosed planMar 2026: $7.3M to cover taxesMarApr 2026: $1.7M under a disclosed planAprMay 2026: $962K under a disclosed planMayJun 2026: $20.1M under a disclosed plan$20.1MJunJul 2026: $6.8M under a disclosed planJulAug 2026: $5.1M under a disclosed planAugSep 2026: $5.8M under a disclosed planSepOct 2026: $6.4M under a disclosed planOct

Outside holders, reported separately

Ravi Mhatre (for the outside shareholder represented on the board) sold $9.4M in the past 12 months. Large shareholders and the funds or companies that board members represent are not part of management, so they are left out of the figures above.

Details

Common questions

Is the Rubrik, Inc. CEO selling stock?

No. Bipul Sinha reported no open-market sales in the past 12 months.

Why are Rubrik, Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 85% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 15% were to cover taxes. A trading plan schedules sales in advance.

Are any Rubrik, Inc. insiders buying?

Yes. 1 officer or director reported 1 purchase in the past 12 months (Form 4 code P, which includes private purchases).

How much of their stake did Rubrik, Inc. insiders sell?

About 3.5% overall. As a group they ended with more shares than they started with. That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold5 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Arvind Nithrakashyap
Chief Technology Officer, Director
$37.7M
445K shares
4.1%90% under a disclosed plan
Kiran Choudary
Chief Financial Officer
$15.9M
258K shares
50%59% under a disclosed plan
John Thompson
Director
$11.2M
153K shares
17%Disclosed plan
Brian McCarthy
Pres.,Global Sales & Field Ops
$3.6M
45K shares
12%90% under a disclosed plan
Yvonne Wassenaar
Director
$585K
7.1K shares
18%Disclosed plan

Board members representing outside shareholders, reported separately: Ravi Mhatre (the shareholder sold $9.4M), Enrique Salem, Asheem Chandna. Details

Outside holder, reported separately: Lightspeed Venture Partners IX, L.P. (a 10% owner, not part of management). No open-market sales reported in the period. Holds 27.07M shares. Latest filing

The full ownership picture12 of 12 insiders fully reconciled · 12 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Bipul Sinha
Chairman of the Board and CEO, Director
11.29M011.24Mno sales
Vesting, gifts, unvested awards and holding lines for Bipul Sinha
0shares vested or exercised
−55Kgifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock56,65256,652
SPVClass A Common Stock0500,000
DirectClass B Common Stock11,234,83910,679,839

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
8,000,000$32.00Apr 23, 2034$749M

Estimate: options held × ($125.57 − strike price), using the most recent insider trade price on Form 4 (Oct 7, 2026), not a market close.

Arvind Nithrakashyap
Chief Technology Officer, Director
10.86M−445K10.47M96%
Vesting, gifts, unvested awards and holding lines for Arvind Nithrakashyap
0shares vested or exercised
−100Kgifted (net of own trusts)
−21Kwithheld by the company for taxes
731K → 650Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock333,528272,538
DirectClass B Common Stock10,330,94510,000,109
Nithrakashyap/Chatterjee Revocable TrustClass B Common Stock200,000200,000
Asheem Chandna
i
Shares held through Greylock 16 Limited Partnership, Greylock 16 Principals Limited Partnership, Greylock 16-A Limited Partnership and others belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Director
1.16M01.17Mno sales
Vesting, gifts, unvested awards and holding lines for Asheem Chandna
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Shares held through Greylock 16 Limited Partnership, Greylock 16 Principals Limited Partnership, Greylock 16-A Limited Partnership and others belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock1,093,6416,249
Revocable Trust of Asheem Chandna and Aarti Chandna, UDT 4/13/98Class A Common Stock46,4841,138,098
Revocable Trust of Asheem Chandra and Aarti Chandra, UDT 4/13/98Class A Common Stock11,62111,621
Chandna Children's Trust dated 12/23/2012Class A Common Stock9,2969,296
Chandra Children's Trust dated 12/31/2012Class A Common Stock2,3242,324
John Thompson
i
Minor difference of 1,906 shares. Difference is under 0.5% of holdings.
Director
892K−153K879K99%
Vesting, gifts, unvested awards and holding lines for John Thompson
0shares vested or exercised
0gifted (net of own trusts)
25K → 0unvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock2,7028,362
John and Sandra Thompson TrustClass A Common Stock9985,000
DirectClass B Common Stock24,99950,001
John and Sandra Thompson TrustClass B Common Stock863,356815,338

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
55,946$4.38Jan 21, 2028$6.8M

Estimate: options held × ($125.57 − strike price), using the most recent insider trade price on Form 4 (Oct 7, 2026), not a market close.

Reconciliation: minor difference of 1,906 shares. Difference is under 0.5% of holdings.

Ravi Mhatre
i
Shares held through LS SPV Management, LLC, Lightspeed Affiliates X, L.P, Lightspeed General Partner IX, L.P and others belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Director
555K0734Kno sales
Vesting, gifts, unvested awards and holding lines for Ravi Mhatre
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Shares held through LS SPV Management, LLC, Lightspeed Affiliates X, L.P, Lightspeed General Partner IX, L.P and others belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock81,842125,351
Mhatre Investments LP - Fund 2Class A Common Stock396,874511,537
Mhatre Investments LP - Fund 3Class A Common Stock75,49996,525
TrustClass A Common Stock649649
Kiran Choudary
i
Minor difference of 367 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Chief Financial Officer
514K−258K958K+87%
Vesting, gifts, unvested awards and holding lines for Kiran Choudary
0shares vested or exercised
0gifted (net of own trusts)
−28Kwithheld by the company for taxes
699K → 479Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock513,551958,078
DirectClass B Common Stock00

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
96,450$7.99Sep 17, 2028$11.3M
11,450$7.99Sep 17, 2028$1.3M

Estimate: options held × ($125.57 − strike price), using the most recent insider trade price on Form 4 (Oct 7, 2026), not a market close.

Reconciliation: minor difference of 367 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Brian McCarthy
i
Minor difference of 180 shares. Difference is under 0.5% of holdings.
Pres.,Global Sales & Field Ops
369K−45K773K+109%
Vesting, gifts, unvested awards and holding lines for Brian McCarthy
0shares vested or exercised
0gifted (net of own trusts)
513K → 654Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock369,139772,794
DirectClass B Common Stock00

Reconciliation: minor difference of 180 shares. Difference is under 0.5% of holdings.

Richard Herren
Director
78K082Kno sales
Vesting, gifts, unvested awards and holding lines for Richard Herren
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock3,2397,461
DirectClass B Common Stock75,00075,000
Mark McLaughlin
i
Minor difference of 2,680 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
57K091Kno sales
Vesting, gifts, unvested awards and holding lines for Mark McLaughlin
0shares vested or exercised
0gifted (net of own trusts)
17K → 0unvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock2,85520,028
DirectClass B Common Stock33,33250,000
McLaughlin Revocable Living TrustClass B Common Stock21,22821,228

Reconciliation: minor difference of 2,680 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Yvonne Wassenaar
Director
39K−7.1K36K92%
Vesting, gifts, unvested awards and holding lines for Yvonne Wassenaar
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock2,8552,988
DirectClass B Common Stock36,00032,603
Enrique Salem
i
Shares held through Bain Capital Venture Fund 2019, L.P., Bain Capital Venture Partners 2019, L.P., Bain Capital Venture Coinvestment Fund II, L.P., Bain Capital Venture Coinvestment II Partners, L.P., BCV 2019-MD Primary, L.P., BCV 2019-MD Coinvestment II, L.P., BCIP Venture Associates II, L.P. and BCIP Venture Associates II-B, L.P belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Director
6.9K06.9Kno sales
Vesting, gifts, unvested awards and holding lines for Enrique Salem
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Shares held through Bain Capital Venture Fund 2019, L.P., Bain Capital Venture Partners 2019, L.P., Bain Capital Venture Coinvestment Fund II, L.P., Bain Capital Venture Coinvestment II Partners, L.P., BCV 2019-MD Primary, L.P., BCV 2019-MD Coinvestment II, L.P., BCIP Venture Associates II, L.P. and BCIP Venture Associates II-B, L.P belong to an outside shareholder this director represents; they are listed under "Board members representing outside shareholders", not here.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock6,9376,937
Rakefet Russak-Aminoach
Director
0010Kno sales
Vesting, gifts, unvested awards and holding lines for Rakefet Russak-Aminoach
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass A Common Stock010,304

12 of 12 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (8 exactly, 4 with a minor or footnoted difference). Percentages cover 11 of 12 officers and directors. Left out: Rakefet Russak-Aminoach (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$68.9M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $68.9M across 908,363 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($10.6M), including tax-related sales outside a plan.

Taxes

$10.6M of sales (15.4%) cite tax obligations in their footnotes. Separately, 48,863 shares ($4.2M) were withheld by the company for taxes, which isn't a market sale. Example: Kiran Choudary, Mar 24, 2026

Purchases · 1 buyer (1 trade)

1 officer or director bought shares in this period, in 1 trade(Form 4 code P). Across all their filings on record there is 1 purchase trade.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Arvind Nithrakashyap
Chief Technology Officer, Director
445K$37.7M90%55%Dec 17, 2025 to Oct 7, 2026
Kiran Choudary
Chief Financial Officer
258K$15.9M59%23%Oct 15, 2025 to Sep 17, 2026
John Thompson
Director
153K$11.2M100%16%Nov 3, 2025 to Oct 1, 2026
Brian McCarthy
Pres.,Global Sales & Field Ops
45K$3.6M90%5%Oct 13, 2025 to Jan 12, 2026
Yvonne Wassenaar
Director
7.1K$585K100%0.8%May 29, 2026 to Oct 5, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$1.1M$1.1M$0$0
Nov 2025$1.9M$1.9M$0$0
Dec 2025$5.4M$2.1M$3.3M$0
Jan 2026$3.7M$3.7M$0$0
Feb 2026$1.8M$1.8M$0$0
Mar 2026$8.0M$724K$7.3M$0
Apr 2026$1.7M$1.7M$0$0
May 2026$962K$962K$0$0
Jun 2026$20.1M$20.1M$0$0
Jul 2026$6.8M$6.8M$0$0
Aug 2026$5.1M$5.1M$0$0
Sep 2026$5.8M$5.8M$0$0
Oct 2026$6.4M$6.4M$0$0
Board members representing outside shareholders (3)Listed and sourced; not part of the management totals or the answer line

Directors whose reported holdings sit mostly in an investment fund or a corporate shareholder they represent, not in their own name, with beneficial ownership disclaimed except for their own financial interest. Listed and sourced here; not part of the management totals or the answer line. Shares a fund hands to its own investors are distributions, not sales.

Board memberHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Ravi Mhatre
i
In-kind distributions to the fund's own investors are labeled as distributions, not sales.
Director
12.80M−115K4.76M37%
Vesting, gifts, unvested awards and holding lines for Ravi Mhatre
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • In-kind distributions to the fund's own investors are labeled as distributions, not sales.
Held throughShare classOct 8, 2025Oct 8, 2026
Lightspeed Venture Partners IX, L.PClass A Common Stock00
Lightspeed Venture Partners Select II, L.PClass A Common Stock00
Lightspeed SPV I, LLCClass A Common Stock00
Lightspeed General Partner IX, L.PClass A Common Stock00
Lightspeed General Partner Select II, L.PClass A Common Stock00
Lightspeed Management Company, L.L.CClass A Common Stock00
Lightspeed SPV I-B, LLCClass A Common Stock00
Lightspeed SPV I-C, LLCClass A Common Stock00
Lightspeed Venture Partners X, L.PClass A Common Stock00
LS SPV Management, LLCClass A Common Stock00
Lightspeed Venture Partners IX, L.PClass B Common Stock5,549,8162,081,182
Lightspeed SPV I, LLCClass B Common Stock2,507,457940,297
Lightspeed SPV I-B, LLCClass B Common Stock1,973,511740,067
Lightspeed SPV I-C, LLCClass B Common Stock1,381,358518,008
Lightspeed Venture Partners Select II, L.PClass B Common Stock1,288,410483,153
Lightspeed Venture Partners X, L.PClass B Common Stock101,6590
Enrique Salem
Director
1.36M01.36Mno sales
Vesting, gifts, unvested awards and holding lines for Enrique Salem
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
Bain Capital Venture Fund 2019, L.P., Bain Capital Venture Partners 2019, L.P., Bain Capital Venture Coinvestment Fund II, L.P., Bain Capital Venture Coinvestment II Partners, L.P., BCV 2019-MD Primary, L.P., BCV 2019-MD Coinvestment II, L.P., BCIP Venture Associates II, L.P. and BCIP Venture Associates II-B, L.PClass B Common Stock1,359,6401,359,640
Asheem Chandna
i
Minor difference of -532 shares. Difference is under 0.5% of holdings.
Director
508K0508Kno sales
Vesting, gifts, unvested awards and holding lines for Asheem Chandna
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
Greylock 16 Limited PartnershipClass A Common Stock345,623345,144
Greylock XIV-A Limited PartnersipClass A Common Stock124,346124,346
Greylock 16 Principals Limited PartnershipClass A Common Stock26,11226,076
Greylock 16-A Limited PartnershipClass A Common Stock12,28712,270

Reconciliation: minor difference of -532 shares. Difference is under 0.5% of holdings.

Ravi Mhatre: 9.33M shares were distributed in kind to the fund's own investors. These are distributions, not sales.

Is this normal? Selling year by yearNot enough history to compare

Not enough history to compare: fewer than three earlier years of filings.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
908K5$68.9M
Oct 8, 2025
1 year earlier
3.76M6$267M
Oct 8, 2024
2 years earlier · filings don't cover the whole year
182K2$5.7M
Oct 9, 2023
3 years earlier · filings don't cover the whole year
n/an/an/a
Oct 9, 2022
4 years earlier · filings don't cover the whole year
n/an/an/a
Oct 9, 2021
5 years earlier · filings don't cover the whole year
n/an/an/a

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

John Thompson: minor difference of 1,906 shares. Difference is under 0.5% of holdings.

Kiran Choudary: minor difference of 367 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Brian McCarthy: minor difference of 180 shares. Difference is under 0.5% of holdings.

Mark McLaughlin: minor difference of 2,680 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred rename: "ByTrust" is treated as the same holder as "Trust", because the old name was never reported again and the new one opened with the same balance (649 shares). Old name, new name

Inferred rename: "Bain Capital Venture Fund 2019, L.P., Bain Capital Venture Coinvestment Fund II, L.P., BCV 2019-MD Primary, L.P., BCV 2019-MD Coinvestment II, L.P., BCIP Venture Associates II, L.P. and BCIP Venture Associates II-B, L.P" is treated as the same holder as "Bain Capital Venture Fund 2019, L.P., Bain Capital Venture Partners 2019, L.P., Bain Capital Venture Coinvestment Fund II, L.P., Bain Capital Venture Coinvestment II Partners, L.P., BCV 2019-MD Primary, L.P., BCV 2019-MD Coinvestment II, L.P., BCIP Venture Associates II, L.P. and BCIP Venture Associates II-B, L.P", because the old name was never reported again and the new one opened with the same balance (2,059,640 shares). Old name, new name

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology240 filings from SEC EDGAR, and how we read them

All 240 Forms 3, 4 and 5 filed for Rubrik, Inc. (SEC CIK 1943896) from Apr 24, 2024 to Oct 7, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (2)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Greylock XIV GP LLCApr 1, 20259,947,659 shares, last reported balance as of Mar 28, 2025
Khosla Ventures VI, L.P.Apr 24, 20244,709,171 shares, last reported balance as of Apr 24, 2024