Security key
87164F105
Syndax Pharmaceuticals Inc - Common Stock, par value $0.0001 per share (SNDX)
CUSIP: 87164F105
Q1 2019 13F Holders as of 31 Mar 2019
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 16,955,330
- Total 13F value
- $89,016,913
- Share change
- +1,496,053
- Put/Call ratio
- 0%
- SEC-reported price per share
- $5.25
- Number of holders
- 66
- Value change
- +$8,086,878
- Number of buys
- 28
- Number of sells
- 34
- Shares outstanding
- 86,328,130
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 2019
Institutions
66
Top holders
10
SNDX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 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, par value $0.0001 per share (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
WELLINGTON MANAGEMENT GRO...
Disclosed value leader
WELLINGTON MANAGEMENT GRO...
Comparable rows
15/15
Latest evidence
31 Dec 2018
13F
Lead comparable stake: 3.8%
Showing 1-6 of 15 holder rows.
Quick read
WELLINGTON MANAGEMENT GROUP LLP leads the comparable SEC ownership view at 3.8%.
15 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 WELLINGTON MANAGEMENT GROUP LLP's linked filing trail.
Comparable ownership
Top 5
WELLINGTON MANAGEMENT GROUP LLP
3.8%
MPM ASSET MANAGEMENT LLC
2.5%
BVF INC/IL
2.3%
BlackRock Finance, Inc.
1.8%
683 Capital Management, LLC
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
3.8%
|
$14,425,000
3,241,782 shares
|
— | 31 Dec 2018 |
| MPM ASSET MANAGEMENT LLC |
13F
Company
|
2.5%
|
$9,651,000
2,168,691 shares
|
— | 31 Dec 2018 |
| BVF INC/IL |
13F
Company
|
2.3%
|
$8,845,000
1,987,669 shares
|
— | 31 Dec 2018 |
| BlackRock Finance, Inc. |
13F
Company
|
1.8%
|
$7,010,000
1,574,931 shares
|
— | 31 Dec 2018 |
| 683 Capital Management, LLC |
13F
Company
|
1.6%
|
$5,976,000
1,342,839 shares
|
— | 31 Dec 2018 |
| VANGUARD GROUP INC |
13F
Company
|
0.98%
|
$3,776,000
848,642 shares
|
— | 31 Dec 2018 |
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 2019
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
66
Shares
16,955,330
Rows available
66
| 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 2019 vs Q1 2019 Across Filers
Q1 2019 holders
66
Q1 2019 holders
66
Holder diff
0
| Investor | Q1 2019 Shares | Q1 2019 Shares | Share Diff | Share Chg % | Q1 2019 value | Q1 2019 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend