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WELLINGTON MANAGEMENT GROUP LLP

Position in SNDX — Syndax Pharmaceuticals Inc

CIK 902219 Boston, MA

Position in SNDX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$2,715,906
-$171,061 QoQ
Shares Held
124,241
+0.5% QoQ
Ownership
0.139%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#92
of 242 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 0% Shared 98% None 2%

Common Shares in SNDX Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $14,994,233,945 across 206 Biotechnology names. SNDX ranks #103 (0.0% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SNDX

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,715,906 124,241
2026-03-31 $2,886,967 123,586
2025-12-31 $748,584 35,630
2025-09-30 $588,105 38,226
2025-06-30 $319,204 34,085
2025-03-31 $441,791 35,962
2024-12-31 $55,979,491 4,234,455
2024-09-30 $95,980,035 4,985,976
2024-06-30 $150,669,749 7,339,004
2024-03-31 $176,991,457 7,436,616
2023-12-31 $163,916,621 7,585,221
2023-09-30 $110,968,312 7,642,446
2023-06-30 $155,806,768 7,444,184
2023-03-31 $147,918,860 7,003,734
2022-12-31 $203,178,595 7,983,442
2022-09-30 $105,430,180 4,387,440
2022-06-30 $61,700,099 3,206,866
2022-03-31 $31,873,702 1,833,930
2021-12-31 $34,996,986 1,598,766
2021-09-30 $32,044,773 1,676,859
2021-06-30 $28,088,934 1,635,931
2021-03-31 $66,520,819 2,974,992
2020-12-31 $58,167,451 2,615,443
2020-09-30 $49,159,180 3,330,568
2020-06-30 $55,675,003 3,756,748
2020-03-31 $32,905,926 2,999,629