Syndax Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US87164F1057

SecuritySNDX / Syndax Pharmaceuticals, Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership928,568 shares
Latest Disclosed Value $ 21,691
Algert Global Llc reports 0.05% increase in ownership of SNDX / Syndax Pharmaceuticals, Inc.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 928,568 shares of Syndax Pharmaceuticals, Inc. (US:SNDX) valued at $21,691,348 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 928,088 shares of Syndax Pharmaceuticals, Inc.. This represents a change in shares of 0.05% during the quarter. The current value of the position is $16,101,369 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)
2026-05-14 2026-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 928,568 480 0.05 22 10.53 0.3263
2026-02-17 2025-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 928,088 -2,678 -0.29 19 35.71 0.3040
2025-11-14 2025-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 930,766 -90,514 -8.86 14 55.56 0.2397
2025-08-14 2025-06-30 13F YNDAX PHARMACEUTICALS COM 87164F105 1,021,280 136,680 15.45 10 -10.00 0.2003
2025-05-13 2025-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 884,600 98,968 12.60 11 0.00 0.2688
2025-02-14 2024-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 785,632 310,634 65.40 10 11.11 0.2444
2024-11-12 2024-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 474,998 42,870 9.92 9 12.50 0.2459
2024-08-15 2024-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 432,128 6,455 1.52 9 -20.00 0.2950
2024-05-15 2024-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 425,673 -102,484 -19.40 10 -9.09 0.3965
2024-02-14 2023-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 528,157 71,938 15.77 11 83.33 0.4596
2023-11-13 2023-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 456,219 202,588 79.88 7 20.00 0.3114
2023-08-14 2023-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 253,631 167,660 195.02 5 400.00 0.2310
2023-05-12 2023-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 85,971 8,191 10.53 2 0.00 0.0857
2023-02-14 2022-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 77,780 28,880 59.06 2 -99.91 0.1097
2022-11-15 2022-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 48,900 -5,814 -10.63 1,175 11.59 0.0710
2022-08-15 2022-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 54,714 13,180 31.73 1,053 45.84 0.0792
2022-05-16 2022-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 41,534 9,948 31.49 722 4.49 0.0473
2022-02-14 2021-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 31,586 31,586 691 0.0863
2021-08-13 2021-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 0 -9,550 -100.00 0 -100.00
2021-05-14 2021-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 9,550 -18,020 -65.36 214 -65.09 0.0685
2021-02-12 2020-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 27,570 8,440 44.12 613 117.38 0.1748
2020-11-16 2020-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 19,130 8,350 77.46 282 76.25 0.0895
2020-08-12 2020-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 10,780 -11,800 -52.26 160 -35.48 0.0543
2020-05-13 2020-03-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 22,580 -3,000 -11.73 248 10.22 0.1046
2020-02-18 2019-12-31 13F SYNDAX PHARMACEUTICALS COM 87164F105 25,580 8,110 46.42 225 71.76 0.0672
2019-11-13 2019-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 17,470 1,600 10.08 131 -11.49 0.0488
2019-08-14 2019-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 15,870 15,870 148 0.0547
2018-11-14 2018-09-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 0 -73,499 -100.00 0 -100.00
2018-08-01 2018-06-30 13F SYNDAX PHARMACEUTICALS COM 87164F105 73,499 73,499 516 0.1071
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.