Synopsys, Inc.
MX ˙ BMV ˙ US8716071076
SecurityMX:SNPS / Synopsys, Inc.
InstitutionAdage Capital Partners Gp, L.l.c.
ManagerPhil Gross, Robert Atchinson
Latest Disclosed Ownership163,684 shares
Latest Disclosed Value $ 64,897,432
Adage Capital Partners Gp, L.l.c. reports 2.65% decrease in ownership of SNPS / Synopsys, Inc.

On May 15, 2026 - Adage Capital Partners Gp, L.l.c. filed a 13F-HR form disclosing ownership of 163,684 shares of Synopsys, Inc. (MX:SNPS) valued at $64,897,432 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 168,144 shares of Synopsys, Inc.. This represents a change in shares of -2.65% during the quarter.

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 SYNOPSYS COM 871607107 163,684 -4,460 -2.65 64,897 -17.83 0.1001
2026-02-17 2025-12-31 13F SYNOPSYS COM 871607107 168,144 -15,900 -8.64 78,981 -13.02 0.1195
2025-11-14 2025-09-30 13F SYNOPSYS COM 871607107 184,044 77,493 72.73 90,805 66.23 0.1438
2025-08-14 2025-06-30 13F SYNOPSYS COM 871607107 106,551 54,520 104.78 54,627 144.82 0.0920
2025-05-15 2025-03-31 13F SYNOPSYS COM 871607107 52,031 -26,251 -33.53 22,313 -41.27 0.0413
2025-02-14 2024-12-31 13F SYNOPSYS COM 871607107 78,282 -13,409 -14.62 37,995 -18.17 0.0664
2024-11-14 2024-09-30 13F SYNOPSYS COM 871607107 91,691 26,948 41.62 46,431 20.52 0.0820
2024-08-14 2024-06-30 13F SYNOPSYS COM 871607107 64,743 -67,217 -50.94 38,526 -48.92 0.0713
2024-05-15 2024-03-31 13F SYNOPSYS COM 871607107 131,960 -10,563 -7.41 75,415 2.76 0.1423
2024-02-14 2023-12-31 13F SYNOPSYS COM 871607107 142,523 2,400 1.71 73,387 14.11 0.1519
2023-11-14 2023-09-30 13F SYNOPSYS COM 871607107 140,123 -2,400 -1.68 64,312 3.64 0.1458
2023-08-14 2023-06-30 13F SYNOPSYS COM 871607107 142,523 1,744 1.24 62,056 14.12 0.1348
2023-05-15 2023-03-31 13F SYNOPSYS COM 871607107 140,779 -5,400 -3.69 54,376 16.50 0.1220
2023-02-14 2022-12-31 13F SYNOPSYS COM 871607107 146,179 10,379 7.64 46,673 12.50 0.1116
2022-11-14 2022-09-30 13F SYNOPSYS COM 871607107 135,800 -13,600 -9.10 41,488 -8.56 0.1029
2022-08-15 2022-06-30 13F SYNOPSYS COM 871607107 149,400 -5,800 -3.74 45,373 -12.28 0.1040
2022-05-16 2022-03-31 13F SYNOPSYS COM 871607107 155,200 -2,300 -1.46 51,724 -10.88 0.0982
2022-02-14 2021-12-31 13F SYNOPSYS COM 871607107 157,500 3,900 2.54 58,039 26.20 0.1045
2021-11-15 2021-09-30 13F SYNOPSYS COM 871607107 153,600 -12,400 -7.47 45,989 0.45 0.0906
2021-08-16 2021-06-30 13F SYNOPSYS COM 871607107 166,000 11,000 7.10 45,781 19.20 0.0896
2021-05-17 2021-03-31 13F SYNOPSYS COM 871607107 155,000 2,500 1.64 38,406 -2.85 0.0784
2021-02-16 2020-12-31 13F SYNOPSYS COM 871607107 152,500 -2,400 -1.55 39,534 19.27 0.0862
2020-11-16 2020-09-30 13F SYNOPSYS COM 871607107 154,900 -17,100 -9.94 33,146 -1.17 0.0830
2020-08-14 2020-06-30 13F SYNOPSYS COM 871607107 172,000 600 0.35 33,540 51.94 0.0859
2020-05-15 2020-03-31 13F SYNOPSYS COM 871607107 171,400 12,400 7.80 22,075 -0.26 0.0659
2020-02-14 2019-12-31 13F SYNOPSYS COM 871607107 159,000 -8,300 -4.96 22,133 -3.61 0.0544
2019-11-14 2019-09-30 13F SYNOPSYS COM 871607107 167,300 300 0.18 22,962 6.84 0.0564
2019-08-14 2019-06-30 13F SYNOPSYS COM 871607107 167,000 -3,900 -2.28 21,491 9.21 0.0535
2019-05-15 2019-03-31 13F SYNOPSYS COM 871607107 170,900 9,500 5.89 19,679 44.74 0.0492
2019-02-14 2018-12-31 13F SYNOPSYS COM 871607107 161,400 -7,600 -4.50 13,596 -18.42 0.0377
2018-11-14 2018-09-30 13F SYNOPSYS COM 871607107 169,000 -11,000 -6.11 16,665 8.19 0.0372
2018-08-14 2018-06-30 13F SYNOPSYS COM 871607107 180,000 6,400 3.69 15,403 6.60 0.0353
2018-05-15 2018-03-31 13F SYNOPSYS COM 871607107 173,600 -11,200 -6.06 14,450 -8.27 0.0336
2018-02-14 2017-12-31 13F SYNOPSYS COM 871607107 184,800 -4,100 -2.17 15,752 3.55 0.0356
2017-11-14 2017-09-30 13F SYNOPSYS COM 871607107 188,900 -27,200 -12.59 15,212 -3.48 0.0370
2017-08-14 2017-06-30 13F SYNOPSYS COM 871607107 216,100 200 0.09 15,760 1.20 0.0386
2017-05-15 2017-03-31 13F SYNOPSYS COM 871607107 215,900 215,900 15,573 0.0392
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.