Syndax Pharmaceuticals, Inc. (SNDX) Insider Trading

Over the last 3 months, SNDX insiders made 0 open-market buys and 4 sales, a net sale of -$1.3M (SEC Form 4). Over the last 6 months, 198 institutions increased and 150 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$1.3M
Insider trades by month Buys Sells
May
Jul
Aug
Sep
Feb
Jun
Context3-month price -21.4%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Jun 12, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOSell31,235$18.14
Jun 12, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOOption31,235$13.82
Jun 12, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOSell34,280$18.00
Jun 12, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOOption22,515$13.82
Jun 2, 2026Metzger Michael Adirector, officer: Chief Executive OfficerSell6,847$18.99
Jun 2, 2026Goldan Keith A.officer: Chief Financial OfficerSell1,177$18.99
Feb 10, 2026Metzger Michael Adirector, officer: Chief Executive OfficerSell17,159$21.03
Feb 10, 2026Goldan Keith A.officer: Chief Financial OfficerSell3,410$21.03
Feb 6, 2026Rizo AleksandradirectorGrant24,000
Feb 6, 2026Legault PierredirectorGrant24,000
Feb 6, 2026Katkin KeithdirectorGrant24,000
Feb 6, 2026Podlesak DennisdirectorGrant48,000
Feb 6, 2026Metzger Michael Adirector, officer: Chief Executive OfficerGrant144,600
Feb 6, 2026Metzger Michael Adirector, officer: Chief Executive OfficerSell7,412$20.62
Feb 6, 2026Metzger Michael Adirector, officer: Chief Executive OfficerGrant440,000$20.43
Feb 6, 2026Metzger Michael Adirector, officer: Chief Executive OfficerGrant73,000
Feb 6, 2026Goldan Keith A.officer: Chief Financial OfficerGrant30,750
Feb 6, 2026Goldan Keith A.officer: Chief Financial OfficerSell2,082$20.62
Feb 6, 2026Goldan Keith A.officer: Chief Financial OfficerGrant118,000$20.43
Feb 6, 2026Goldan Keith A.officer: Chief Financial OfficerGrant21,500
Feb 6, 2026Jarrett JenniferdirectorGrant24,000
Feb 6, 2026Huber Martin H. Jr.directorGrant24,000
Feb 6, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOGrant144,700$20.43
Feb 6, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOGrant36,000
Feb 6, 2026Botwood Nicholas A.J.officer: Head of R&D, CMOGrant24,000
Sep 8, 2025Metzger Michael Adirector, officer: Chief Executive OfficerSell157,307$16.41
Sep 8, 2025Metzger Michael Adirector, officer: Chief Executive OfficerOption157,307$10.90
Aug 18, 2025Podlesak DennisdirectorOption19,200$7.20
Aug 18, 2025Podlesak DennisdirectorSell19,200$14.19
Jul 18, 2025Goldan Keith A.officer: Chief Financial OfficerSell1,296$9.29

Source: SNDX SEC Form 4 filings, latest Jun 12, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their SNDX positions over the last 6 months (SEC Form 13F).

Increased
198
New positions
66
Reduced
150
Sold out
56
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased8.3MMay 13, 2026
BLACKROCK, INC.Reduced8.2MFeb 12, 2026
KYNAM CAPITAL MANAGEMENT, LPUnchanged8.1MMay 15, 2026
KYNAM CAPITAL MANAGEMENT, LPReduced8.1MFeb 17, 2026
VANGUARD GROUP INCIncreased6.2MJan 29, 2026
GOLDMAN SACHS GROUP INCIncreased5.7MMar 25, 2026
GOLDMAN SACHS GROUP INCReduced5.0MMay 15, 2026
POINT72 ASSET MANAGEMENT, L.P.Increased4.9MFeb 17, 2026
BANK OF AMERICA CORP /DE/Increased4.7MFeb 17, 2026
STATE STREET CORPIncreased4.6MFeb 13, 2026
STATE STREET CORPReduced4.4MMay 15, 2026
BANK OF AMERICA CORP /DE/Reduced4.2MMay 18, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position3.8MMay 15, 2026
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)New Position3.8MMay 15, 2026
BANK OF AMERICA CORP /DE/Reduced3.7MFeb 3, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.