Latest Period
Q2 2026
Security Snapshot
Syndax Pharmaceuticals Inc - COMMON STOCK (SNDX) Institutional Ownership
CUSIP: 87164F105
13F Institutional Holders and Ownership History from Q1 2016 to Q2 2026
Institutions Reporting
240
Shares (Excl. Options)
108,075,463
Price
$21.86
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- SNDX on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 108,075,463
- Total 13F value
- $2,362,702,337
- Portfolio coverage rank
- 0.01%
- Share change
- +8,692,614
- Value change
- +$181,938,614
- Number of holders
- 240
- Shares outstanding
- 88,413,516
- SEC-reported price per share
- $22.80
- Insider filing price
- $22.80
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- SNDX - Syndax Pharmaceuticals Inc - COMMON STOCK is tracked under CUSIP 87164F105.
- 240 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 246 to 240 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $2,321,728,426 to $2,362,702,337.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 240 institutions filings for Q2 2026.
Security key
87164F105
Latest holder period
Q2 2026
13F holders
240
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
SNDX full holder history
Syndax Pharmaceuticals Inc SEC filings
Syndax Pharmaceuticals Inc company facts
Syndax Pharmaceuticals Inc insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 87164F105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
SNDX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Kynam Capital Management, LP | 10% | $113,571,600 | 8,520,000 | Kynam Capital Management, LP | 31 Dec 2024 | |||
| BlackRock, Inc. | 7.8% | $89,898,173 | 6,744,049 | BlackRock, Inc. | 31 Mar 2025 | |||
| STATE STREET CORP | 6.4% | +22% | $133,596,359 | +$25,071,766 | 5,658,465 | +23% | STATE STREET CORPORATION | 30 Jun 2026 |
| GOLDMAN SACHS GROUP INC | 6.5% | +26% | $51,576,091 | +$9,897,509 | 5,581,828 | +24% | THE GOLDMAN SACHS GROUP, INC. | 30 Jun 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 5% | $104,118,860 | 4,457,143 | Vanguard Capital Management | 31 Mar 2026 | |||
| MORGAN STANLEY | 2.4% | -65% | $27,193,373 | -$44,284,339 | 2,040,013 | -62% | Morgan Stanley | 31 Mar 2025 |
| Point72 Asset Management, L.P. | 2.3% | -54% | $46,382,378 | -$54,718,581 | 1,985,547 | -54% | Point72 Asset Management, L.P. | 31 Mar 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | 0% | $475,628 | 35,681 | Wellington Management Group LLP | 28 Feb 2025 |
As of 30 Jun 2026, 240 institutional investors reported holding 108,075,463 shares of Syndax Pharmaceuticals Inc - COMMON STOCK (SNDX). This represents 122% of the company’s total 88,413,516 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
84%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10% | 9,020,006 | +9.3% | 0% | $197,177,353 |
| Kynam Capital Management, LP | 9.1% | 8,050,959 | 0% | 9.7% | $175,993,964 |
| GOLDMAN SACHS GROUP INC | 6.6% | 5,861,265 | +17% | 0.01% | $128,127,253 |
| STATE STREET CORP | 6.4% | 5,658,424 | +28% | 0% | $123,693,149 |
| BANK OF AMERICA CORP /DE/ | 4.6% | 4,045,094 | -4.8% | 0.01% | $88,425,755 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 3,927,892 | +2.8% | 0% | $85,863,719 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 4.3% | 3,779,900 | 0% | 0.86% | $82,628,614 |
| Eversept Partners, LP | 3.2% | 2,798,210 | -3% | 3.3% | $61,168,871 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.9% | 2,584,136 | +20% | 0% | $56,499,563 |
| Hood River Capital Management LLC | 2.9% | 2,564,279 | +8.9% | 0.41% | $56,055,139 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | 2.8% | 2,500,000 | 0% | 7.4% | $54,650,000 |
| FRANKLIN RESOURCES INC | 2.6% | 2,286,499 | +6.3% | 0.01% | $49,982,872 |
| MILLENNIUM MANAGEMENT LLC | 2.3% | 2,053,960 | +929% | 0.03% | $44,899,566 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.2% | 1,921,796 | +11% | 0% | $42,010,461 |
| UBS Group AG | 2.1% | 1,893,750 | +64% | 0.01% | $41,397,375 |
| Elmind Capital, LP | 2.1% | 1,855,000 | 0% | 10% | $40,550,300 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2% | 1,790,173 | +3.3% | 0.04% | $39,133,182 |
| Candriam S.C.A. | 1.9% | 1,696,040 | +83% | 0.17% | $37,039,763 |
| Soleus Capital Management, L.P. | 1.8% | 1,628,039 | -5.7% | 1.2% | $35,588,933 |
| TWO SIGMA INVESTMENTS, LP | 1.8% | 1,578,125 | -0.09% | 0.03% | $34,497,812 |
| ORBIMED ADVISORS LLC | 1.7% | 1,542,000 | +60% | 0.64% | $33,708,120 |
| Nuveen, LLC | 1.5% | 1,364,575 | -8.7% | 0.01% | $29,829,610 |
| MPM BIOIMPACT LLC | 1.5% | 1,333,523 | -0.54% | 1.8% | $29,150,813 |
| Aisling Capital Management LP | 1.5% | 1,316,806 | 0% | 6.1% | $28,785,379 |
| Woodline Partners LP | 1.4% | 1,250,760 | 0% | 0.08% | $27,341,614 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
42
Latest
Q2 2026
Rows shown
1-25 of 42
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 108,075,463 | $2,362,702,337 | +$181,938,614 | $21.86 | 240 |
| 2026 Q1 | 99,424,387 | $2,321,728,426 | -$8,245,027 | $23.36 | 246 |
| 2025 Q4 | 99,897,694 | $2,098,468,343 | -$24,363,545 | $21.01 | 228 |
| 2025 Q3 | 101,125,579 | $1,555,833,342 | +$19,170,271 | $15.38 | 226 |
| 2025 Q2 | 101,743,087 | $952,765,629 | -$3,412,831 | $9.36 | 214 |
| 2025 Q1 | 100,841,762 | $1,238,937,353 | +$32,280,128 | $12.28 | 215 |
| 2024 Q4 | 98,036,463 | $1,295,985,057 | +$87,204,107 | $13.22 | 214 |
| 2024 Q3 | 88,967,889 | $1,713,503,490 | +$22,962,287 | $19.25 | 208 |
| 2024 Q2 | 87,359,094 | $1,793,463,324 | -$71,085,162 | $20.53 | 195 |
| 2024 Q1 | 90,291,619 | $2,148,803,982 | +$45,990,918 | $23.80 | 188 |
| 2023 Q4 | 88,660,945 | $1,915,962,261 | +$405,830,138 | $21.61 | 176 |
| 2023 Q3 | 71,017,590 | $1,031,468,287 | -$1,236,482 | $14.52 | 174 |
| 2023 Q2 | 70,660,286 | $1,478,899,897 | -$48,383,346 | $20.93 | 165 |
| 2023 Q1 | 72,989,203 | $1,541,067,785 | +$23,662,697 | $21.12 | 161 |
| 2022 Q4 | 71,468,832 | $1,818,847,118 | +$262,720,878 | $25.45 | 159 |
| 2022 Q3 | 59,986,014 | $1,441,473,166 | +$97,845,580 | $24.03 | 136 |
| 2022 Q2 | 55,225,664 | $1,062,543,225 | +$21,478,133 | $19.24 | 116 |
| 2022 Q1 | 54,572,890 | $948,388,792 | -$36,428,045 | $17.38 | 136 |
| 2021 Q4 | 52,428,774 | $1,146,955,026 | +$54,297,905 | $21.89 | 129 |
| 2021 Q3 | 49,078,197 | $938,007,416 | -$20,732,602 | $19.11 | 121 |
| 2021 Q2 | 50,204,902 | $861,938,071 | +$12,311,173 | $17.17 | 113 |
| 2021 Q1 | 48,482,656 | $1,083,969,550 | +$46,478,159 | $22.36 | 130 |
| 2020 Q4 | 46,493,166 | $1,034,139,433 | +$269,937,051 | $22.24 | 140 |
| 2020 Q3 | 34,234,622 | $505,296,990 | +$23,535,263 | $14.76 | 98 |
| 2020 Q2 | 32,648,161 | $483,839,331 | +$177,178,450 | $14.82 | 96 |