Security key
87164F105
Syndax Pharmaceuticals Inc - COMMON STOCK (SNDX)
CUSIP: 87164F105
Q1 2022 13F Holders as of 31 Mar 2022
- Security type / class
- Equity / COMMON STOCK
- Total 13F shares
- 54,572,890
- Total 13F value
- $948,388,792
- Share change
- -1,028,787
- Put/Call ratio
- 0%
- SEC-reported price per share
- $17.38
- Number of holders
- 136
- Value change
- -$36,428,045
- Number of buys
- 78
- Number of sells
- 51
- Shares outstanding
- 88,413,516
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2022
Institutions
136
Top holders
10
SNDX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Syndax Pharmaceuticals Inc SEC filings
Syndax Pharmaceuticals Inc company facts
Broader feeds
Reporting periods
Holder history for CUSIP 87164F105
Recent filing periods:
Ownership snapshot
Top reported holders of SNDX - Syndax Pharmaceuticals Inc - COMMON STOCK (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Avidity Partners Manageme...
Disclosed value leader
Avidity Partners Manageme...
Comparable rows
0/15
Latest evidence
31 Dec 2021
13F
Highest disclosed value: $105,584,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
Avidity Partners Management LP has the largest disclosed position value at $105.58M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Avidity Partners Management LP's linked filing trail.
Disclosed position value
Top 5
Avidity Partners Management LP
$105.58M
BlackRock Finance, Inc.
$80.77M
Nantahala Capital Management, LLC
$62.4M
FRAZIER MANAGEMENT LLC
$60.68M
STATE STREET CORP
$54.29M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Avidity Partners Management LP |
13F
Company
|
—
denominator unverified
|
$105,584,000
4,823,400 shares
|
— | 31 Dec 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$80,771,000
3,689,894 shares
|
— | 31 Dec 2021 |
| Nantahala Capital Management, LLC |
13F
Company
|
—
denominator unverified
|
$62,399,000
2,850,559 shares
|
— | 31 Dec 2021 |
| FRAZIER MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$60,680,000
2,772,062 shares
|
— | 31 Dec 2021 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$54,292,000
2,480,204 shares
|
— | 31 Dec 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$51,165,000
2,337,370 shares
|
— | 31 Dec 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
136
Shares
54,572,890
Rows available
136
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2022 vs Q1 2022 Across Filers
Q1 2022 holders
136
Q1 2022 holders
136
Holder diff
0
| Investor | Q1 2022 Shares | Q1 2022 Shares | Share Diff | Share Chg % | Q1 2022 value | Q1 2022 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend