Kopin Corporation
US ˙ NasdaqCM ˙ US5006001011

SecurityKOPN / Kopin Corporation
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership53,000 shares
Latest Disclosed Value $ 124,020
Alliancebernstein L.p. reports 49.30% increase in ownership of KOPN / Kopin Corporation

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 53,000 shares of Kopin Corporation (US:KOPN) valued at $119,250 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 35,500 shares of Kopin Corporation. This represents a change in shares of 49.30% during the quarter. The current value of the position is $289,380 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)
2026-05-15 2026-03-31 13F KOPIN COM 500600101 53,000 17,500 49.30 124 49.40 0.0000
2026-02-17 2025-12-31 13F KOPIN COM 500600101 35,500 14,500 69.05 83 62.75 0.0000
2025-11-14 2025-09-30 13F KOPIN COM 500600101 21,000 0 0.00 51 59.38 0.0000
2025-08-14 2025-06-30 13F KOPIN COM 500600101 21,000 21,000 32 0.0000
2019-11-14 2019-09-30 13F KOPIN COM 500600101 0 -27,400 -100.00 0 -100.00
2019-08-14 2019-06-30 13F KOPIN COM 500600101 27,400 -32,750 -54.45 30 -62.96 0.0000
2019-05-14 2019-03-31 13F KOPIN COM 500600101 60,150 -1,000 -1.64 81 32.79 0.0001
2019-02-13 2018-12-31 13F KOPIN COM 500600101 61,150 2,000 3.38 61 -57.34 0.0000
2018-11-08 2018-09-30 13F KOPIN COM 500600101 59,150 0 0.00 143 -15.38 0.0001
2018-08-13 2018-06-30 13F KOPIN COM 500600101 59,150 7,800 15.19 169 5.63 0.0001
2018-05-14 2018-03-31 13F KOPIN COM 500600101 51,350 -11,700 -18.56 160 -20.79 0.0001
2018-02-13 2017-12-31 13F KOPIN COM 500600101 63,050 0 0.00 202 -23.19 0.0001
2017-11-13 2017-09-30 13F KOPIN COM 500600101 63,050 -4,600 -6.80 263 4.78 0.0002
2017-08-10 2017-06-30 13F KOPIN COM 500600101 67,650 38,300 130.49 251 109.17 0.0002
2017-05-11 2017-03-31 13F KOPIN COM 500600101 29,350 -9,500 -24.45 120 9.09 0.0001
2017-02-13 2016-12-31 13F KOPIN COM 500600101 38,850 0 0.00 110 29.41 0.0001
2016-11-10 2016-09-30 13F KOPIN COM 500600101 38,850 0 0.00 85 -1.16 0.0001
2016-08-11 2016-06-30 13F KOPIN COM 500600101 38,850 4,300 12.45 86 50.88 0.0001
2016-05-13 2016-03-31 13F KOPIN COM 500600101 34,550 0 0.00 57 -39.36 0.0000
2016-02-16 2015-12-31 13F/A-1 KOPIN COM 500600101 34,550 -2,600 -7.00 94 -19.66 0.0001
2016-02-12 2015-12-31 13F KOPIN COM 500600101 34,550 108
2015-11-13 2015-09-30 13F KOPIN COM 500600101 37,150 -1,700 -4.38 117 -12.69 0.0001
2015-08-14 2015-06-30 13F KOPIN COM 500600101 38,850 -1,550 -3.84 134 -5.63 0.0001
2015-05-13 2015-03-31 13F KOPIN COM 500600101 40,400 0 0.00 142 -2.74 0.0001
2015-02-13 2014-12-31 13F KOPIN COM 500600101 40,400 -1,800 -4.27 146 2.10 0.0001
2014-11-13 2014-09-30 13F KOPIN COM 500600101 42,200 -6,300 -12.99 143 -9.49 0.0001
2014-08-13 2014-06-30 13F KOPIN COM 500600101 48,500 -2,600 -5.09 158 -18.13 0.0001
2014-05-13 2014-03-31 13F KOPIN COM 500600101 51,100 -1,200 -2.29 193 -12.67 0.0002
2014-02-13 2013-12-31 13F KOPIN COM 500600101 52,300 -2,200 -4.04 221 0.45 0.0002
2013-11-14 2013-09-30 13F KOPIN COM 500600101 54,500 -2,500 -4.39 220 4.27 0.0002
2013-08-13 2013-06-30 13F KOPIN COM 500600101 57,000 57,000 211 0.0002
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.