InsiderFlow

SNDX

Syndax Pharmaceuticals, Inc.$18.13+0.22 (+1.23%)
Prev Close$17.91·MCap$1.56B·P/E·Vol763.1K·Yield

Buys (12M)

0

$0.00

Sells (12M)

13

$5.94M

Net Activity

Net Seller

$5.94M

Active Insiders

4

last 12 mo

Over the past 12 months, insider activity at Syndax Pharmaceuticals, Inc. (SNDX) has been exclusively selling, with 0 insider purchases totaling $0.00 and 13 insider sales totaling $5.94M. The most recent insider transaction was by Botwood Nicholas A.J. (officer: Head of R&D, CMO), who sold $1.18M worth of shares on Jun 12, 2026. Syndax Pharmaceuticals, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $1.56B.

SNDX Insider Trading Activity

DateInsiderTypeValue
Jun 12, 2026 Botwood Nicholas A.J.Sell$1.18M
Jun 2, 2026 Metzger Michael ASell$130.0K
Jun 2, 2026 Goldan Keith A.Sell$22.4K
Feb 10, 2026 Metzger Michael ASell$360.8K
Feb 10, 2026 Goldan Keith A.Sell$71.7K
Feb 9, 2026 Metzger Michael ASell$360.8K
Feb 9, 2026 Goldan Keith A.Sell$71.7K
Feb 4, 2026 Goldan Keith A.Sell$42.9K
Feb 4, 2026 Metzger Michael ASell$152.8K
Sep 8, 2025 Metzger Michael ASell$2.58M
Aug 14, 2025 Podlesak DennisSell$875.1K
Jul 16, 2025 Goldan Keith A.Sell$12.0K
Jul 16, 2025 Metzger Michael ASell$70.0K
May 19, 2025 Huber Martin H. Jr.Buy$45.0K
May 19, 2025 Katkin KeithBuy$91.1K
May 16, 2025 Botwood Nicholas A.J.Buy$105.8K
Mar 4, 2025 Metzger Michael ASell$117.6K
Feb 12, 2025 Gallagher NeilSell$71.6K
Feb 12, 2025 Goldan Keith A.Sell$58.6K
Feb 12, 2025 Metzger Michael ASell$206.0K
Jun 17, 2024 Goldan Keith A.Buy$25.0K
Aug 10, 2023 Morrison BriggsSell$965.4K
Aug 3, 2023 Meury WilliamSell$1.70M
Jul 11, 2023 Morrison BriggsSell$1.08M
Jun 14, 2023 Goldan Keith A.Sell$12.9K
Jun 9, 2023 Morrison BriggsSell$1.12M
May 10, 2023 Morrison BriggsSell$1.13M
Apr 12, 2023 Morrison BriggsSell$1.03M
Mar 14, 2023 Morrison BriggsSell$1.19M
Feb 17, 2023 Ordentlich PeterSell$646.1K
Feb 8, 2023 Metzger Michael ASell$164.7K
Feb 8, 2023 Morrison BriggsSell$1.42M
Feb 3, 2023 Ordentlich PeterSell$2.0K
Jan 13, 2023 Legault PierreSell$1.05M
Dec 2, 2022 Ordentlich PeterSell$626.0K
Oct 7, 2022 Katkin KeithSell$774.4K
Oct 7, 2022 Metzger Michael ASell$410.5K
Oct 4, 2022 Katkin KeithSell$102.8K
Oct 4, 2022 Metzger Michael ASell$844.9K
Sep 21, 2022 Morrison BriggsSell$4.02M
Sep 16, 2022 Morrison BriggsSell$6.60M
Sep 16, 2022 Podlesak DennisSell$1.90M
Aug 26, 2022 Ordentlich PeterSell$625.9K
Aug 9, 2022 Legault PierreSell$552.4K
Jul 27, 2022 Metzger Michael ASell$665.4K
Jul 8, 2022 Metzger Michael ASell$318.4K
Jul 5, 2022 Morrison BriggsSell$1.18M
Apr 5, 2022 Morrison BriggsSell$1.82M
Feb 3, 2022 Nolte AlexanderSell$16.1K
Feb 3, 2022 Ordentlich PeterSell$23.5K
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SNDX Insider Buying Activity

The following table shows recent insider purchases of Syndax Pharmaceuticals, Inc. (SNDX) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
May 19, 2025 Huber Martin H. Jr.Buy$45.0K
May 19, 2025 Katkin KeithBuy$91.1K
May 16, 2025 Botwood Nicholas A.J.Buy$105.8K
Jun 17, 2024 Goldan Keith A.Buy$25.0K

SNDX Insider Selling Activity

The following table shows recent insider sales of Syndax Pharmaceuticals, Inc. (SNDX) stock reported via SEC Form 4 filings.

DateInsiderTypeValue
Jun 12, 2026 Botwood Nicholas A.J.Sell$1.18M
Jun 2, 2026 Metzger Michael ASell$130.0K
Jun 2, 2026 Goldan Keith A.Sell$22.4K
Feb 10, 2026 Metzger Michael ASell$360.8K
Feb 10, 2026 Goldan Keith A.Sell$71.7K
Feb 9, 2026 Metzger Michael ASell$360.8K
Feb 9, 2026 Goldan Keith A.Sell$71.7K
Feb 4, 2026 Goldan Keith A.Sell$42.9K
Feb 4, 2026 Metzger Michael ASell$152.8K
Sep 8, 2025 Metzger Michael ASell$2.58M
Aug 14, 2025 Podlesak DennisSell$875.1K
Jul 16, 2025 Goldan Keith A.Sell$12.0K
Jul 16, 2025 Metzger Michael ASell$70.0K
Mar 4, 2025 Metzger Michael ASell$117.6K
Feb 12, 2025 Gallagher NeilSell$71.6K
Feb 12, 2025 Goldan Keith A.Sell$58.6K
Feb 12, 2025 Metzger Michael ASell$206.0K
Aug 10, 2023 Morrison BriggsSell$965.4K
Aug 3, 2023 Meury WilliamSell$1.70M
Jul 11, 2023 Morrison BriggsSell$1.08M
Jun 14, 2023 Goldan Keith A.Sell$12.9K
Jun 9, 2023 Morrison BriggsSell$1.12M
May 10, 2023 Morrison BriggsSell$1.13M
Apr 12, 2023 Morrison BriggsSell$1.03M
Mar 14, 2023 Morrison BriggsSell$1.19M
Feb 17, 2023 Ordentlich PeterSell$646.1K
Feb 8, 2023 Metzger Michael ASell$164.7K
Feb 8, 2023 Morrison BriggsSell$1.42M
Feb 3, 2023 Ordentlich PeterSell$2.0K
Jan 13, 2023 Legault PierreSell$1.05M
Dec 2, 2022 Ordentlich PeterSell$626.0K
Oct 7, 2022 Katkin KeithSell$774.4K
Oct 7, 2022 Metzger Michael ASell$410.5K
Oct 4, 2022 Katkin KeithSell$102.8K
Oct 4, 2022 Metzger Michael ASell$844.9K
Sep 21, 2022 Morrison BriggsSell$4.02M
Sep 16, 2022 Morrison BriggsSell$6.60M
Sep 16, 2022 Podlesak DennisSell$1.90M
Aug 26, 2022 Ordentlich PeterSell$625.9K
Aug 9, 2022 Legault PierreSell$552.4K
Jul 27, 2022 Metzger Michael ASell$665.4K
Jul 8, 2022 Metzger Michael ASell$318.4K
Jul 5, 2022 Morrison BriggsSell$1.18M
Apr 5, 2022 Morrison BriggsSell$1.82M
Feb 3, 2022 Nolte AlexanderSell$16.1K
Feb 3, 2022 Ordentlich PeterSell$23.5K

SNDX Insiders

Botwood Nicholas A.J.

officer: Head of R&D, CMO

Bought $105.8KSold $1.18M
2 tradesLast: Jun 12, 2026
Metzger Michael A

President and COO

Sold $12.30M
19 tradesLast: Jun 2, 2026
Goldan Keith A.

officer: Chief Financial Officer

Bought $25.0KSold $292.2K
8 tradesLast: Jun 2, 2026
Podlesak Dennis

Director

Bought $197.1KSold $2.77M
3 tradesLast: Aug 14, 2025
Huber Martin H. Jr.

Director

Bought $45.0K
1 tradesLast: May 19, 2025
Katkin Keith

Director

Bought $91.1KSold $877.2K
3 tradesLast: May 19, 2025
Gallagher Neil

President, Head of R&D

Sold $71.6K
1 tradesLast: Feb 12, 2025
Morrison Briggs

President, Head of R&D

Sold $23.68M
13 tradesLast: Aug 10, 2023
Meury William

Sold $1.70M
1 tradesLast: Aug 3, 2023
Ordentlich Peter

Chief Scientific Officer

Sold $1.92M
5 tradesLast: Feb 17, 2023
Legault Pierre

Sold $2.55M
3 tradesLast: Jan 13, 2023
Nolte Alexander

Chief Accounting Officer

Sold $16.1K
1 tradesLast: Feb 3, 2022
Egros Fabrice

Sold $1.00M
4 tradesLast: Nov 19, 2021
Meyers Michael L.

SVP, Chief Medical Officer

Bought $7.7K
1 tradesLast: Apr 28, 2021