Avidity Partners Management LP Syndax Pharmaceuticals Inc Transaction History

Avidity Partners Management LP

$370 Million
Q2 2025

A detailed history of Avidity Partners Management LP transactions in Syndax Pharmaceuticals Inc stock. As of the latest transaction made, Avidity Partners Management LP holds 150,000 shares of SNDX stock, worth $1.95 Million. This represents 0.38% of its overall portfolio holdings.

Number of Shares

150,000

Previous 925,000 83.78%

Holding current value

$1.95 Million

Previous $11.4 Million 87.64%

% of portfolio

0.38%

Previous 2.56%

19 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2025 Aug 14, 2025	SELL	$8.9 - $14.15 $6.9 Million - $11 Million	-775,000 Reduced 83.78%	150,000 $1.41 Million
Q1 2025 May 15, 2025	SELL	$12.29 - $16.38 $7.07 Million - $9.42 Million	-575,000 Reduced 38.33%	925,000 $11.4 Million
Q4 2024 Feb 14, 2025	SELL	$12.52 - $21.81 $12 Million - $20.8 Million	-955,000 Reduced 38.9%	1,500,000 $19.8 Million
Q3 2024 Nov 14, 2024	SELL	$17.93 - $24.81 $15.8 Million - $21.8 Million	-880,000 Reduced 26.39%	2,455,000 $47.3 Million
Q2 2024 Aug 14, 2024	BUY	$18.82 - $23.79 $17.4 Million - $21.9 Million	922,500 Added 38.24%	3,335,000 $68.5 Million
Q1 2024 May 15, 2024	SELL	$19.71 - $24.57 $30.3 Million - $37.8 Million	-1,537,500 Reduced 38.92%	2,412,500 $57.4 Million
Q4 2023 Feb 14, 2024	BUY	$11.39 - $21.67 $12.9 Million - $24.5 Million	1,129,000 Added 40.02%	3,950,000 $85.4 Million
Q3 2023 Nov 14, 2023	SELL	$14.52 - $21.77 $740,520 - $1.11 Million	-51,000 Reduced 1.78%	2,821,000 $41 Million
Q2 2023 Aug 14, 2023	SELL	$19.35 - $22.31 $19.2 Million - $22.2 Million	-993,300 Reduced 25.7%	2,872,000 $60.1 Million
Q1 2023 May 15, 2023	SELL	$20.66 - $28.98 $41.2 Million - $57.8 Million	-1,995,700 Reduced 34.05%	3,865,300 $81.6 Million
Q4 2022 Feb 14, 2023	BUY	$20.64 - $26.24 $5.66 Million - $7.19 Million	274,100 Added 4.91%	5,861,000 $149 Million
Q3 2022 Nov 14, 2022	BUY	$18.51 - $24.79 $2.53 Million - $3.39 Million	136,900 Added 2.51%	5,586,900 $134 Million
Q2 2022 Aug 15, 2022	BUY	$13.64 - $19.48 $8.55 Million - $12.2 Million	626,600 Added 12.99%	5,450,000 $105 Million
Q3 2021 Nov 15, 2021	BUY	$13.87 - $19.8 $2.89 Million - $4.13 Million	208,400 Added 4.52%	4,823,400 $92.2 Million
Q2 2021 Aug 16, 2021	BUY	$13.42 - $25.18 $10.3 Million - $19.4 Million	769,000 Added 19.99%	4,615,000 $79.2 Million
Q1 2021 May 17, 2021	BUY	$19.28 - $24.59 $10.4 Million - $13.2 Million	538,000 Added 16.26%	3,846,000 $86 Million
Q4 2020 Feb 16, 2021	BUY	$15.1 - $26.44 $22 Million - $38.4 Million	1,453,900 Added 78.42%	3,308,000 $73.6 Million
Q3 2020 Nov 16, 2020	BUY	$13.39 - $17.48 $4.37 Million - $5.71 Million	326,700 Added 21.39%	1,854,100 $27.4 Million
Q2 2020 Aug 14, 2020	BUY	$8.94 - $20.98 $13.7 Million - $32 Million	1,527,400 New	1,527,400 $22.6 Million

Others Institutions Holding SNDX

# of Institutions

250

Shares Held

100M

Call Options Held

1.28M

Put Options Held

1.29M

View Full List

About Syndax Pharmaceuticals Inc

Ticker SNDX
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 56,565,200
Market Cap $734M
Description
Syndax Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, develops therapies for the treatment of cancer. Its lead product candidates are SNDX-5613, which is in phase 1/2 clinical trial targeting the binding interaction of Menin with the mixed lineage leukemia 1 protein for the treatment of MLL-rearranged (MLLr) and nucleophosmin...

More about SNDX

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Avidity Partners Management LP Syndax Pharmaceuticals Inc Transaction History