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LITELumentum Holdings Inc. · Insider ownership research

Lumentum Holdings Inc. insiders sold $176M in the past 12 months. How much of their stake is that?

About 24% overall. As a group they still hold 92% of their starting shares. The biggest individual seller, Vincent Retort, gave up 64% of starting holdings.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 142 of the 156 other companies we can measure (#15 of 157)See ranking
0
buyers among officers and directors, past 12 months
89%
of sales were under disclosed trading plans, past 12 months
12 of 16
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Oct 1, 2026Wajid Ali sold 25K shares ($25.7M) under a disclosed trading plan. That is 25% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Wajid Ali
EVP & Chief Financial Officer
24,542$1048.5025%75KOct 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 29, 2026Yuen Wupen sold 307 shares ($290K) under a disclosed trading plan. That is 0.3% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
307$945.000.3%108KSep 29, 2026Sep 30, 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 28, 2026Yuen Wupen sold 500 shares ($474K) under a disclosed trading plan. That is 0.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$948.500.5%109KSep 28, 2026Sep 30, 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, 2026Yuen Wupen sold 500 shares ($468K) under a disclosed trading plan. That is 0.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$935.750.5%109KSep 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 24, 2026Yuen Wupen sold 500 shares ($461K) under a disclosed trading plan. That is 0.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$921.070.5%110KSep 24, 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 23, 2026Yuen Wupen sold 500 shares ($473K) under a disclosed trading plan. That is 0.5% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$946.560.5%110KSep 23, 2026Sep 23, 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 22, 2026Yuen Wupen sold 500 shares ($468K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$935.550.4%111KSep 22, 2026Sep 23, 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 21, 2026Yuen Wupen sold 500 shares ($480K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$959.270.4%111KSep 21, 2026Sep 23, 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 18, 2026Yuen Wupen sold 500 shares ($460K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$920.000.4%112KSep 18, 2026Sep 18, 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, 2026Yuen Wupen sold 500 shares ($467K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$933.450.4%112KSep 17, 2026Sep 18, 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 16, 2026Yuen Wupen sold 500 shares ($428K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$856.830.4%113KSep 16, 2026Sep 18, 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, 2026Yuen Wupen sold 500 shares ($421K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$841.510.4%113KSep 15, 2026Sep 15, 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 14, 2026Yuen Wupen sold 500 shares ($431K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$862.140.4%114KSep 14, 2026Sep 15, 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 11, 2026Yuen Wupen sold 500 shares ($472K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$944.410.4%114KSep 11, 2026Sep 15, 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, 2026Yuen Wupen sold 500 shares ($481K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$961.440.4%115KSep 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, 2026Yuen Wupen sold 500 shares ($489K) under a disclosed trading plan. That is 0.4% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Yuen Wupen
President, Global Bus. Units
500$978.540.4%115KSep 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? More than usual: about 2.5x the 5-year average. 12 insiders sold; the average is 6 a year. Year by year
Latest filing: Filed Oct 2 for a sale on Oct 1. Wajid Ali sold 25K shares ($25.7M) under a disclosed plan. Filing
85 SEC ownership filings in the period · See the evidence

What stands out

Seven insiders sold more than 25% of vested holdings: Vincent Retort (64% of holdings, $69.5M, all under a disclosed plan), Wajid Ali (42% of holdings, $31.8M, all under a disclosed plan) and Jae Kim (49% of holdings, $16.6M, all under a disclosed plan), plus 4 more.Vincent Retort: largest sale, Feb 12, 2026 · Wajid Ali: largest sale, Oct 1, 2026 · Jae Kim: largest sale, May 11, 2026
Three insiders sold $7.8M with no disclosed plan: Penny Herscher ($5.0M, 18% of holdings), Isaac Harris ($1.8M) and Matthew Sepe ($1.0M, 8.9%). The filings don't state a reason.Penny Herscher: largest such sale, Feb 6, 2026 · Isaac Harris: largest such sale, Nov 7, 2025 · Matthew Sepe: largest such sale, Nov 7, 2025
Selling picked up in the last 90 days: officers and directors sold 99K shares, against an average of 45K per 90 days earlier in the period. Most of it was Vincent Retort (44K shares in the last 90 days, 29% of holdings) and Wajid Ali (25K shares in the last 90 days, 32% of holdings); 100% of these sales were under disclosed plans.Vincent Retort: largest recent sale, Aug 25, 2026 · Wajid Ali: largest recent sale, Oct 1, 2026

Percentages cover 13 of 16 officers and directors. Left out: Isaac Harris (holdings couldn't be fully reconciled); Trent Thad and Eric Chang (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
Vincent Retort
Officer title: Executive Vice President, Global Reliability & Quality
64% · $69.5MDisclosed plan
Wajid Ali
EVP & Chief Financial Officer
42% · $31.8MDisclosed plan
Yuen Wupen
President, Global Bus. Units
23% · $18.7MDisclosed plan
Jae Kim
SVP, General Counsel
49% · $16.6MDisclosed plan
Brian Lillie
Director
49% · $11.8MDisclosed plan
All 12 sellers

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
OctNov 2025: $969K under a disclosed planNov 2025: $6.6M no plan disclosedNovDecJanFeb 2026: $33.9M under a disclosed planFeb 2026: $5.0M no plan disclosedFebMarAprMay 2026: $30.0M under a disclosed planMay 2026: $7.5M no plan disclosedMayJun 2026: $1.4M under a disclosed planJunJulAug 2026: $55.9M under a disclosed plan$55.9MAugSep 2026: $9.0M under a disclosed planSepOct 2026: $25.7M under a disclosed planOct

Common questions

Is the Lumentum Holdings Inc. CEO selling stock?

Yes. Michael Hurlston sold 548 shares ($525K, 0.4% of starting holdings) in the past 12 months, all of it under a trading plan disclosed in the filings.

Why are Lumentum Holdings Inc. insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 89% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 11% had no disclosed plan. A trading plan schedules sales in advance.

Are any Lumentum Holdings Inc. insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did Lumentum Holdings Inc. insiders sell?

About 24% overall. As a group they still hold 92% of their starting shares. The biggest individual seller, Vincent Retort, gave up 64% of starting holdings. 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 sold12 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Vincent Retort
Officer title: Executive Vice President, Global Reliability & Quality
$69.5M
96K shares
64%Disclosed plan
Wajid Ali
EVP & Chief Financial Officer
$31.8M
32K shares
42%Disclosed plan
Yuen Wupen
President, Global Bus. Units
$18.7M
24K shares
23%Disclosed plan
Jae Kim
SVP, General Counsel
$16.6M
20K shares
49%Disclosed plan
Brian Lillie
Director
$11.8M
12K shares
49%Disclosed plan
Ian Small
Director
$7.5M
8.5K shares
30%No plan disclosed
Isaac Harris
Director
$6.6M
13K shares
i
No percentage: holdings couldn't be fully reconciled.
73% under a disclosed plan
Penny Herscher
Director
$5.0M
8.8K shares
18%No plan disclosed
Pamela Fletcher
Director
$4.1M
7.2K shares
68%74% under a disclosed plan
Julia Johnson
Director
$2.7M
10K shares
45%No plan disclosed
Matthew Sepe
Chief Accounting Officer
$1.0M
4.2K shares
8.9%No plan disclosed
Michael Hurlston
President and CEO, Director
$525K
548 shares
0.4%Disclosed plan
The full ownership picture15 of 16 insiders fully reconciled · 16 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
Alan Lowe
i
Includes unvested RSUs, amount not disclosed.
Director
230K0230Kno sales
Vesting, gifts, unvested awards and holding lines for Alan Lowe
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock230,471230,471
Vincent Retort
i
Minor difference of 171 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
Officer title: Executive Vice President, Global Reliability & Quality
151K−96K78K52%
Vesting, gifts, unvested awards and holding lines for Vincent Retort
0shares vested or exercised
0gifted (net of own trusts)
−56Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock150,67178,440

Reconciliation: minor difference of 171 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Michael Hurlston
i
Minor difference of 427 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
President and CEO, Director
150K−548187K+25%
Vesting, gifts, unvested awards and holding lines for Michael Hurlston
0shares vested or exercised
0gifted (net of own trusts)
−37Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock149,597186,951

Reconciliation: minor difference of 427 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Yuen Wupen
i
Includes unvested RSUs, amount not disclosed.
President, Global Bus. Units
101K−24K108K+7%
Vesting, gifts, unvested awards and holding lines for Yuen Wupen
0shares vested or exercised
0gifted (net of own trusts)
−54Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock101,273108,320
Wajid Ali
i
Minor difference of 65 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed. Class as filed looks like a typo ("05/15/2023"); the class could not be inferred, so that line is left out of holdings.
EVP & Chief Financial Officer
77K−32K75K97%
Vesting, gifts, unvested awards and holding lines for Wajid Ali
0shares vested or exercised
0gifted (net of own trusts)
−51Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
  • Class as filed looks like a typo ("05/15/2023"); the class could not be inferred, so that line is left out of holdings. Filing 1 Filing 2 Filing 3
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock77,08775,074

Reconciliation: minor difference of 65 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Penny Herscher
Director
49K−8.8K42K85%
Vesting, gifts, unvested awards and holding lines for Penny Herscher
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock9,6232,165
Living TrustCommon Stock39,37839,378
Matthew Sepe
i
Minor difference of 28 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
Chief Accounting Officer
48K−4.2K42K87%
Vesting, gifts, unvested awards and holding lines for Matthew Sepe
0shares vested or exercised
0gifted (net of own trusts)
−2.1Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock47,77641,514

Reconciliation: minor difference of 28 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Jae Kim
i
Minor difference of 227 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer). Includes unvested RSUs, amount not disclosed.
SVP, General Counsel
41K−20K39K96%
Vesting, gifts, unvested awards and holding lines for Jae Kim
0shares vested or exercised
0gifted (net of own trusts)
−29Kwithheld by the company for taxes
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock41,18039,439

Reconciliation: minor difference of 227 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Ian Small
Director
28K−8.5K21K75%
Vesting, gifts, unvested awards and holding lines for Ian Small
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock28,17921,116
Brian Lillie
Director
25K−12K14K57%
Vesting, gifts, unvested awards and holding lines for Brian Lillie
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock24,62714,018
Julia Johnson
Director
22K−10K13K61%
Vesting, gifts, unvested awards and holding lines for Julia Johnson
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock22,03713,428
Isaac Harris
!
Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -4,557 shares on Jun 2, 2026 (Direct). See the filing Sales and other transactions for Isaac Harris are complete.
Director
n/a−13Kn/an/a
Vesting, gifts, unvested awards and holding lines for Isaac Harris
0shares vested or exercised
0gifted (net of own trusts)
−1.2Kwithheld by the company for taxes
none reportedunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: -4,557 shares on Jun 2, 2026 (Direct). The balances below are as reported, not verified totals.

Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock16,9646,984
Pamela Fletcher
Director
10K−7.2K7.5K72%
Vesting, gifts, unvested awards and holding lines for Pamela Fletcher
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock10,4687,514
Paul Lundstrom
Director
1.2K04.9Kno sales
Vesting, gifts, unvested awards and holding lines for Paul Lundstrom
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock1,2344,904
Trent Thad
Director
001.3Kno sales
Vesting, gifts, unvested awards and holding lines for Trent Thad
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock01,313
Eric Chang
i
Includes unvested RSUs, amount not disclosed.
Officer title: SVP, Finance and Chief Accounting Officer
005.9Kno sales
Vesting, gifts, unvested awards and holding lines for Eric Chang
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Includes unvested RSUs, amount not disclosed.
Held throughShare classOct 8, 2025Oct 8, 2026
Direct
includes unvested RSUs, amount not disclosed
Common Stock05,906

15 of 16 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (10 exactly, 5 with a minor or footnoted difference). For 1 we show sales but not holdings; the ! icon on that row explains why. Percentages cover 13 of 16 officers and directors. Left out: Isaac Harris (holdings couldn't be fully reconciled); Trent Thad and Eric Chang (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$176M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $176M across 235,964 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 ($19.0M), including tax-related sales outside a plan.

No plan disclosed · $19.0M

Sales with no 10b5-1 plan and no tax reference in the filing. $7.5M of it is Ian Small. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Ian Small, May 21, 2026

Taxes

229,625 shares ($194M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Vincent Retort
Officer title: Executive Vice President, Global Reliability & Quality
96K$69.5M100%40%Feb 12, 2026 to Aug 25, 2026
Wajid Ali
EVP & Chief Financial Officer
32K$31.8M100%18%Feb 27, 2026 to Oct 1, 2026
Yuen Wupen
President, Global Bus. Units
24K$18.7M100%11%Nov 17, 2025 to Sep 29, 2026
Jae Kim
SVP, General Counsel
20K$16.6M100%9%Nov 17, 2025 to Aug 25, 2026
Brian Lillie
Director
12K$11.8M100%7%May 11, 2026 to May 11, 2026
Ian Small
Director
8.5K$7.5M0%4%May 8, 2026 to May 21, 2026
Isaac Harris
Director
13K$6.6M73%4%Nov 7, 2025 to Jun 2, 2026
Penny Herscher
Director
8.8K$5.0M0%3%Feb 6, 2026 to Feb 12, 2026
Pamela Fletcher
Director
7.2K$4.1M74%2%Nov 17, 2025 to May 15, 2026
Julia Johnson
Director
10K$2.7M0%2%Nov 10, 2025 to Nov 10, 2025
Matthew Sepe
Chief Accounting Officer
4.2K$1.0M0%0.6%Nov 7, 2025 to Nov 7, 2025
Michael Hurlston
President and CEO, Director
548$525K100%0.3%Aug 27, 2026 to Aug 27, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$7.5M$969K$0$6.6M
Dec 2025$0$0$0$0
Jan 2026$0$0$0$0
Feb 2026$38.9M$33.9M$0$5.0M
Mar 2026$0$0$0$0
Apr 2026$0$0$0$0
May 2026$37.4M$30.0M$0$7.5M
Jun 2026$1.4M$1.4M$0$0
Jul 2026$0$0$0$0
Aug 2026$55.9M$55.9M$0$0
Sep 2026$9.0M$9.0M$0$0
Oct 2026$25.7M$25.7M$0$0
Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 2.5x the 5-year average. 12 insiders sold; the average is 6 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
236K12$176M
Oct 8, 2025
1 year earlier
227K9$20.9M
Oct 8, 2024
2 years earlier
11K2$539K
Oct 9, 2023
3 years earlier
6.9K1$416K
Oct 9, 2022
4 years earlier
115K7$10.7M
Oct 9, 2021
5 years earlier
111K9$9.9M

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 uncertainty1 insider whose holdings couldn't be fully reconciled

Isaac Harris: holdings couldn't be fully reconciled (difference of -557 shares). Balance changed without a matching transaction, and the footnote does not state the amount: -4,557 shares on Jun 2, 2026 (Direct). Filing, Jun 2, 2026

Footnote: "These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026. | These sales were executed in multiple trades at prices ranging from $1,000.00 to $1,000.09. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide full information regarding the number of shares and prices at which these sales were effected, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer."

Vincent Retort: minor difference of 171 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Michael Hurlston: minor difference of 427 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Wajid Ali: minor difference of 65 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Matthew Sepe: minor difference of 28 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Jae Kim: minor difference of 227 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

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

Sources and methodology802 filings from SEC EDGAR, and how we read them

All 802 Forms 3, 4 and 5 filed for Lumentum Holdings Inc. (SEC CIK 1633978) from Jul 16, 2015 to Oct 2, 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 (11)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Harold CovertNov 26, 20243,313 shares, last reported balance as of Nov 22, 2024
Judy HamelMay 17, 202450,594 shares, last reported balance as of May 15, 2024
Janet WongNov 21, 202315,040 shares, last reported balance as of Nov 17, 2023
Jason ReinhardtAug 25, 2023117,670 shares, last reported balance as of Aug 24, 2023
Samuel ThomasAug 25, 202014,337 shares, last reported balance as of Aug 13, 2020
Martin KaplanFeb 27, 201918,902 shares, last reported balance as of Feb 22, 2019
Christopher ColdrenNov 19, 201827,348 shares, last reported balance as of Nov 19, 2018
Aaron TachibanaAug 24, 201873,945 shares, last reported balance as of Aug 20, 2018
VIAVI SOLUTIONS INC.Jul 19, 20165,242,855 shares, last reported balance as of Jul 15, 2016
Craig CocchiFeb 24, 201613,206 shares, last reported balance as of Feb 20, 2016
Rex JacksonJul 16, 2015No balance on record