Fabrinet
US ˙ NYSE ˙ KYG3323L1005

SecurityFN / Fabrinet
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership5,317 shares
Latest Disclosed Value $ 2,772,921
D. E. Shaw & Co., Inc. ownership in FN / Fabrinet

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 5,317 shares of Fabrinet (US:FN) valued at $2,772,922 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,986 shares of Fabrinet. This represents a change in shares of 78.06% during the quarter. The current value of the position is $3,854,825 USD.

D. E. Shaw & Co., Inc. has a history of taking positions in derivatives of the underlying security (FN) in the form of stock options. The firm currently holds call options representing 6,400 of underlying shares valued at $3,337,728 USD and put options representing 1,100 of underlying shares valued at $573,672 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

FN / Fabrinet Historical Put/Call Ratio
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 FABRINET SHS G3323L100 5,317 2,331 78.06 2,773 103.97 0.0017
2026-02-17 2025-12-31 13F FABRINET SHS G3323L100 2,986 -3,027 -50.34 1,359 -38.00 0.0007
2025-11-14 2025-09-30 13F FABRINET SHS G3323L100 6,013 -46,226 -88.49 2,192 -85.76 0.0012
2025-08-14 2025-06-30 13F FABRINET SHS G3323L100 52,239 -27,387 -34.39 15,394 -2.12 0.0109
2025-05-15 2025-03-31 13F FABRINET SHS G3323L100 79,626 79,626 15,727 0.0140
2025-02-14 2024-12-31 13F FABRINET SHS G3323L100 0 -7,020 -100.00 0 -100.00
2024-11-14 2024-09-30 13F FABRINET SHS G3323L100 7,020 -30 -0.43 1,660 -3.83 0.0014
2024-08-14 2024-06-30 13F FABRINET SHS G3323L100 7,050 5,950 540.91 1,726 733.33 0.0016
2024-05-15 2024-03-31 13F FABRINET SHS G3323L100 1,100 -2,445 -68.97 208 -69.29 0.0002
2024-02-14 2023-12-31 13F FABRINET SHS G3323L100 3,545 -79,535 -95.73 675 -95.13 0.0006
2023-11-14 2023-09-30 13F FABRINET SHS G3323L100 83,080 75,801 1,041.37 13,843 1,364.76 0.0145
2023-08-14 2023-06-30 13F FABRINET SHS G3323L100 7,279 -28,132 -79.44 945 -77.53 0.0010
2023-05-15 2023-03-31 13F FABRINET SHS G3323L100 35,411 29,553 504.49 4,205 459.92 0.0045
2023-02-14 2022-12-31 13F FABRINET SHS G3323L100 5,858 -7,745 -56.94 751 -42.14 0.0008
2022-11-14 2022-09-30 13F FABRINET SHS G3323L100 13,603 -29,241 -68.25 1,298 -62.65 0.0016
2022-08-15 2022-06-30 13F FABRINET SHS G3323L100 42,844 40,493 1,722.37 3,475 1,306.88 0.0041
2022-05-16 2022-03-31 13F FABRINET SHS G3323L100 2,351 -22,512 -90.54 247 -91.62 0.0002
2022-02-14 2021-12-31 13F FABRINET SHS G3323L100 24,863 24,863 2,946 0.0024
2020-11-16 2020-09-30 13F FABRINET SHS G3323L100 0 -47,097 -100.00 0 -100.00
2020-08-14 2020-06-30 13F FABRINET SHS G3323L100 47,097 10,239 27.78 2,940 46.20 0.0035
2020-05-15 2020-03-31 13F FABRINET SHS G3323L100 36,858 36,858 2,011 0.0031
2017-08-14 2017-06-30 13F FABRINET SHS G3323L100 0 -10,276 -100.00 0 -100.00
2017-05-15 2017-03-31 13F FABRINET SHS G3323L100 10,276 -25,962 -71.64 432 -70.41 0.0008
2017-02-14 2016-12-31 13F FABRINET SHS G3323L100 36,238 -40,268 -52.63 1,460 -57.20 0.0025
2016-11-14 2016-09-30 13F FABRINET SHS G3323L100 76,506 -294,758 -79.39 3,411 -75.25 0.0060
2016-08-15 2016-06-30 13F FABRINET SHS G3323L100 371,264 -44,533 -10.71 13,781 2.45 0.0254
2016-05-16 2016-03-31 13F FABRINET SHS G3323L100 415,797 22,365 5.68 13,451 43.54 0.0241
2016-02-16 2015-12-31 13F FABRINET SHS G3323L100 393,432 150,322 61.83 9,371 110.30 0.0140
2015-11-16 2015-09-30 13F FABRINET SHS G3323L100 243,110 50,246 26.05 4,456 23.37 0.0066
2015-08-14 2015-06-30 13F FABRINET SHS G3323L100 192,864 42,517 28.28 3,612 26.51 0.0054
2015-05-15 2015-03-31 13F FABRINET SHS G3323L100 150,347 19,884 15.24 2,855 23.38 0.0044
2015-02-17 2014-12-31 13F FABRINET SHS G3323L100 130,463 -31,341 -19.37 2,314 -2.03 0.0030
2014-11-14 2014-09-30 13F FABRINET SHS G3323L100 161,804 104,298 181.37 2,362 99.32 0.0031
2014-08-14 2014-06-30 13F FABRINET SHS G3323L100 57,506 -52,649 -47.80 1,185 -48.21 0.0016
2014-05-15 2014-03-31 13F FABRINET SHS G3323L100 110,155 1,104 1.01 2,288 2.05 0.0033
2014-02-14 2013-12-31 13F FABRINET SHS G3323L100 109,051 -12,554 -10.32 2,242 9.47 0.0031
2013-11-20 2013-09-30 13F/A-1 FABRINET SHS G3323L100 121,605 61,212 101.36 2,048 142.08 0.0033
2013-11-14 2013-09-30 13F FABRINET SHS G3323L100 121,605 2,048
2013-08-14 2013-06-30 13F FABRINET SHS G3323L100 60,393 60,393 846 0.0016
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FABRINET SHS Call 6,400 10.34 3,338 26.40 n/a n/a n/a
2026-02-17 2025-12-31 13F FABRINET SHS Call 5,800 2,641 n/a n/a n/a
2019-05-15 2019-03-31 13F FABRINET SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F FABRINET SHS Call 4,000 205 n/a n/a n/a
2018-11-14 2018-09-30 13F FABRINET SHS Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F FABRINET SHS Call 25,300 -13.65 933 1.52 n/a n/a n/a
2018-05-15 2018-03-31 13F FABRINET SHS Call 29,300 215.05 919 244.19 n/a n/a n/a
2018-02-14 2017-12-31 13F FABRINET SHS Call 9,300 267 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F FABRINET SHS Put 1,100 574 n/a n/a n/a
2019-05-15 2019-03-31 13F FABRINET SHS Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F FABRINET SHS Put 9,600 0.00 493 11.04 n/a n/a n/a
2018-11-14 2018-09-30 13F FABRINET SHS Put 9,600 -77.09 444 -71.28 n/a n/a n/a
2018-08-14 2018-06-30 13F FABRINET SHS Put 41,900 -12.89 1,546 2.45 n/a n/a n/a
2018-05-15 2018-03-31 13F FABRINET SHS Put 48,100 68.77 1,509 84.47 n/a n/a n/a
2018-02-14 2017-12-31 13F FABRINET SHS Put 28,500 818 n/a n/a n/a
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.