Lumentum Holdings Inc.
US ˙ NasdaqGS ˙ US55024U1097

SecurityLITE / Lumentum Holdings Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership359,173 shares
Latest Disclosed Value $ 252,270,675
Dimensional Fund Advisors Lp reports 29.16% decrease in ownership of LITE / Lumentum Holdings Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 359,173 shares of Lumentum Holdings Inc. (US:LITE) valued at $252,412,417 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 506,985 shares of Lumentum Holdings Inc.. This represents a change in shares of -29.16% during the quarter. The current value of the position is $336,904,274 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F LUMENTUM HLDGS COM 55024U109 359,173 -147,812 -29.16 252,271 35.00 0.0524
2026-02-12 2025-12-31 13F LUMENTUM HLDGS COM 55024U109 506,985 -72,537 -12.52 186,870 98.19 0.0392
2025-11-12 2025-09-30 13F LUMENTUM HLDGS COM 55024U109 579,522 -166,410 -22.31 94,289 32.97 0.0202
2025-08-12 2025-06-30 13F LUMENTUM HLDGS COM 55024U109 745,932 -233,894 -23.87 70,911 16.10 0.0164
2025-05-13 2025-03-31 13F LUMENTUM HLDGS COM 55024U109 979,826 -52,653 -5.10 61,077 -29.54 0.0152
2025-02-13 2024-12-31 13F LUMENTUM HLDGS COM 55024U109 1,032,479 -179,481 -14.81 86,678 12.84 0.0208
2024-11-07 2024-09-30 13F LUMENTUM HLDGS COM 55024U109 1,211,960 -492,009 -28.87 76,818 -11.46 0.0186
2024-08-09 2024-06-30 13F LUMENTUM HLDGS COM 55024U109 1,703,969 130,838 8.32 86,760 16.48 0.0227
2024-05-10 2024-03-31 13F LUMENTUM HLDGS COM 55024U109 1,573,131 81,629 5.47 74,488 -4.73 0.0202
2024-02-07 2023-12-31 13F LUMENTUM HLDGS COM 55024U109 1,491,502 44,291 3.06 78,187 19.58 0.0228
2023-11-09 2023-09-30 13F LUMENTUM HLDGS COM 55024U109 1,447,211 518,375 55.81 65,385 24.08 0.0214
2023-08-09 2023-06-30 13F LUMENTUM HLDGS COM 55024U109 928,836 -29,689 -3.10 52,694 1.79 0.0168
2023-05-12 2023-03-31 13F LUMENTUM HLDGS COM 55024U109 958,525 -49,985 -4.96 51,768 99,453.85 0.0174
2023-02-09 2022-12-31 13F LUMENTUM HLDGS COM 55024U109 1,008,510 52,269 5.47 53 -99.92 0.0155
2022-11-10 2022-09-30 13F LUMENTUM HLDGS COM 55024U109 956,241 119,596 14.29 65,573 -1.32 0.0252
2022-08-12 2022-06-30 13F LUMENTUM HLDGS COM 55024U109 836,645 30,983 3.85 66,447 -15.50 0.0238
2022-05-13 2022-03-31 13F LUMENTUM HLDGS COM 55024U109 805,662 53,978 7.18 78,633 -1.10 0.0242
2022-02-09 2021-12-31 13F LUMENTUM HLDGS COM 55024U109 751,684 48,865 6.95 79,507 35.41 0.0240
2021-11-12 2021-09-30 13F LUMENTUM HLDGS COM 55024U109 702,819 82,639 13.33 58,715 15.41 0.0189
2021-08-12 2021-06-30 13F LUMENTUM HLDGS COM 55024U109 620,180 32,814 5.59 50,876 -5.18 0.0161
2021-05-14 2021-03-31 13F LUMENTUM HLDGS COM 55024U109 587,366 -52,580 -8.22 53,653 -11.56 0.0177
2021-03-08 2020-12-31 13F/A-2 LUMENTUM HLDGS COM 55024U109 639,946 -28,816 -4.31 60,668 20.75 0.0219
2021-02-11 2020-12-31 13F LUMENTUM HLDGS COM 55024U109 639,946 -28,816 60,668 21,910.0569
2020-11-12 2020-09-30 13F LUMENTUM HLDGS COM 55024U109 668,762 -10,934 -1.61 50,241 -9.21 0.0213
2020-08-13 2020-06-30 13F LUMENTUM HLDGS COM 55024U109 679,696 -165,818 -19.61 55,336 -11.20 0.0243
2020-05-14 2020-03-31 13F LUMENTUM HLDGS COM 55024U109 845,514 -164,693 -16.30 62,312 -22.22 0.0325
2020-02-14 2019-12-31 13F LUMENTUM HLDGS COM 55024U109 1,010,207 -35,399 -3.39 80,111 43.05 0.0292
2019-11-12 2019-09-30 13F LUMENTUM HLDGS COM 55024U109 1,045,606 -12,119 -1.15 56,001 -0.87 0.0218
2019-08-13 2019-06-30 13F LUMENTUM HLDGS COM 55024U109 1,057,725 -175,393 -14.22 56,491 -18.97 0.0219
2019-08-12 2019-03-31 13F/A-2 LUMENTUM HLDGS COM 55024U109 1,233,118 101,741 8.99 69,718 46.69 0.0278
2019-05-10 2019-03-31 13F LUMENTUM HLDGS COM 55024U109 1,233,118 101,741 69,718
2019-02-26 2018-12-31 13F/A-1 LUMENTUM HLDGS COM 55024U109 1,131,377 272,165 31.68 47,529 -7.73 0.0215
2019-02-13 2018-12-31 13F LUMENTUM HLDGS COM 55024U109 1,131,377 272,165 47,529
2018-11-13 2018-09-30 13F LUMENTUM HLDGS COM 55024U109 859,212 44,206 5.42 51,513 9.17 0.0196
2018-08-10 2018-06-30 13F LUMENTUM HLDGS COM 55024U109 815,006 87,284 11.99 47,187 1.63 0.0188
2018-05-11 2018-03-31 13F LUMENTUM HLDGS COM 55024U109 727,722 84,905 13.21 46,429 47.70 0.0194
2018-02-12 2017-12-31 13F LUMENTUM HLDGS COM 55024U109 642,817 -261,547 -28.92 31,435 -36.05 0.0130
2017-11-13 2017-09-30 13F LUMENTUM HLDGS COM 55024U109 904,364 52,427 6.15 49,153 1.13 0.0215
2017-08-11 2017-06-30 13F LUMENTUM HLDGS COM 55024U109 851,937 223,643 35.60 48,604 45.00 0.0224
2017-05-12 2017-03-31 13F LUMENTUM HLDGS COM 55024U109 628,294 49,993 8.64 33,520 49.96 0.0160
2017-02-09 2016-12-31 13F LUMENTUM HLDGS COM 55024U109 578,301 30,570 5.58 22,352 -2.30 0.0112
2016-11-10 2016-09-30 13F LUMENTUM HLDGS COM 55024U109 547,731 -28,208 -4.90 22,878 64.14 0.0124
2016-08-09 2016-06-30 13F LUMENTUM HLDGS COM 55024U109 575,939 -7,182 -1.23 13,938 -11.38 0.0080
2016-05-13 2016-03-31 13F LUMENTUM HLDGS COM 55024U109 583,121 0 0.00 15,727 22.47 0.0094
2016-02-10 2015-12-31 13F LUMENTUM HLDGS COM 55024U109 583,121 -33,753 -5.47 12,841 22.81 0.0080
2015-11-13 2015-09-30 13F LUMENTUM HLDGS COM 55024U109 616,874 616,874 10,456 0.0069
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.