Werewolf Therapeutics (HOWL) Insider Trading & Ownership

$0.99 +0.01 (+0.75%)

Closing price 09/23/2026 04:00 PM Eastern

Extended Trading

$1.00 +0.01 (+0.57%)

As of 05:43 AM Eastern

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Current Insider Ownership Percentage: 23.60%
Number Of Insiders Buying (Last 12 Months): 0
Number Of Insiders Selling (Last 12 Months): 13
Amount Of Insider Selling (Last 12 Months): $8.59M

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HOWL Insider Buying and Selling by Quarter

Werewolf Therapeutics Insider and Congressional Trades History

Transaction Type

Time Frame

Start Date

End Date

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Transaction Date	Insider	Buy/Sell	Number of Shares	Average Share Price	Total Transaction
7/7/2026	Luke Evnin Director	Sell	107,429	$0.31	$33,302.99
7/6/2026	Luke Evnin Director	Sell	35,770	$0.32	$11,446.40
6/17/2026	Ra Capital Management, L.P. Major Shareholder	Sell	416,911	$0.35	$145,918.85
6/16/2026	Ra Capital Management, L.P. Major Shareholder	Sell	149,625	$0.37	$55,361.25
6/15/2026	Ra Capital Management, L.P. Major Shareholder	Sell	128,770	$0.39	$50,220.30
6/12/2026	Ra Capital Management, L.P. Major Shareholder	Sell	170,441	$0.40	$68,176.40
6/11/2026	Ra Capital Management, L.P. Major Shareholder	Sell	262,503	$0.38	$99,751.14
6/10/2026	Ra Capital Management, L.P. Major Shareholder	Sell	45,923	$0.37	$16,991.51
6/9/2026	Luke Evnin Director	Sell	76,928	$0.37	$28,463.36
6/9/2026	Ra Capital Management, L.P. Major Shareholder	Sell	369,800	$0.37	$136,826.00
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6/8/2026	Luke Evnin Director	Sell	60,547	$0.40	$24,218.80
6/5/2026	Luke Evnin Director	Sell	24,946	$0.40	$9,978.40
6/4/2026	Luke Evnin Director	Sell	20,072	$0.44	$8,831.68
6/3/2026	Luke Evnin Director	Sell	29,749	$0.42	$12,494.58
6/2/2026	Luke Evnin Director	Sell	29,595	$0.45	$13,317.75
6/1/2026	Luke Evnin Director	Sell	80,459	$0.47	$37,815.73
5/29/2026	Luke Evnin Director	Sell	32,556	$0.45	$14,650.20
5/28/2026	Luke Evnin Director	Sell	27,698	$0.46	$12,741.08
5/27/2026	Luke Evnin Director	Sell	80,852	$0.48	$38,808.96
5/26/2026	Luke Evnin Director	Sell	67,950	$0.47	$31,936.50
5/22/2026	Luke Evnin Director	Sell	87,425	$0.45	$39,341.25
5/21/2026	Luke Evnin Director	Sell	36,387	$0.42	$15,282.54
5/20/2026	Luke Evnin Director	Sell	85,895	$0.43	$36,934.85
5/19/2026	Luke Evnin Director	Sell	62,970	$0.45	$28,336.50
5/18/2026	Luke Evnin Director	Sell	22,184	$0.50	$11,092.00
5/12/2026	Luke Evnin Director	Sell	67,885	$0.64	$43,446.40
5/12/2026	Ra Capital Management, L.P. Major Shareholder	Sell	101,151	$0.64	$64,736.64
5/11/2026	Luke Evnin Director	Sell	33,948	$0.67	$22,745.16
5/11/2026	Ra Capital Management, L.P. Major Shareholder	Sell	87,490	$0.67	$58,618.30
5/8/2026	Luke Evnin Director	Sell	305,741	$0.70	$214,018.70
5/8/2026	Ra Capital Management, L.P. Major Shareholder	Sell	376,526	$0.71	$267,333.46
5/7/2026	Luke Evnin Director	Sell	79,086	$0.63	$49,824.18
5/6/2026	Luke Evnin Director	Sell	14,635	$0.66	$9,659.10
5/5/2026	Luke Evnin Director	Sell	6,860	$0.69	$4,733.40
5/4/2026	Luke Evnin Director	Sell	47,963	$0.72	$34,533.36
5/1/2026	Luke Evnin Director	Sell	58,394	$0.73	$42,627.62
4/30/2026	Luke Evnin Director	Sell	168,262	$0.72	$121,148.64
4/29/2026	Luke Evnin Director	Sell	56,559	$0.69	$39,025.71
4/28/2026	Luke Evnin Director	Sell	95,412	$0.73	$69,650.76
4/27/2026	Luke Evnin Director	Sell	53,940	$0.85	$45,849.00
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1/16/2026	Luke Evnin Director	Sell	38,782	$0.54	$20,942.28
1/15/2026	Luke Evnin Director	Sell	37,413	$0.55	$20,577.15
1/14/2026	Luke Evnin Director	Sell	30,616	$0.57	$17,451.12
1/13/2026	Luke Evnin Director	Sell	43,198	$0.55	$23,758.90
1/12/2026	Luke Evnin Director	Sell	58,980	$0.57	$33,618.60
1/9/2026	Luke Evnin Director	Sell	24,678	$0.61	$15,053.58
1/8/2026	Luke Evnin Director	Sell	7,716	$0.63	$4,861.08
1/7/2026	Luke Evnin Director	Sell	11,915	$0.64	$7,625.60
1/6/2026	Luke Evnin Director	Sell	40,761	$0.65	$26,494.65
1/5/2026	Luke Evnin Director	Sell	18,378	$0.64	$11,761.92
1/2/2026	Luke Evnin Director	Sell	18,568	$0.63	$11,697.84
12/31/2025	Luke Evnin Director	Sell	24,962	$0.62	$15,476.44
12/30/2025	Luke Evnin Director	Sell	34,847	$0.61	$21,256.67
12/29/2025	Luke Evnin Director	Sell	108,606	$0.61	$66,249.66
12/26/2025	Luke Evnin Director	Sell	35,632	$0.63	$22,448.16
12/24/2025	Luke Evnin Director	Sell	16,310	$0.65	$10,601.50
12/23/2025	Luke Evnin Director	Sell	71,428	$0.63	$44,999.64
12/22/2025	Luke Evnin Director	Sell	59,307	$0.69	$40,921.83
12/17/2025	Luke Evnin Director	Sell	9,983	$1.14	$11,380.62
12/16/2025	Luke Evnin Director	Sell	14,548	$1.05	$15,275.40
12/15/2025	Luke Evnin Director	Sell	23,640	$1.07	$25,294.80
12/12/2025	Luke Evnin Director	Sell	17,858	$1.08	$19,286.64
12/11/2025	Luke Evnin Director	Sell	28,009	$1.07	$29,969.63
12/10/2025	Luke Evnin Director	Sell	37,104	$1.06	$39,330.24
12/9/2025	Luke Evnin Director	Sell	44,570	$1.01	$45,015.70
12/8/2025	Luke Evnin Director	Sell	34,041	$0.99	$33,700.59
12/5/2025	Luke Evnin Director	Sell	16,568	$0.97	$16,070.96
12/4/2025	Ansbert Gadicke Major Shareholder	Sell	83,230	$0.97	$80,733.10
12/4/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	83,230	$0.97	$80,733.10
12/4/2025	Luke Evnin Director	Sell	53,416	$0.97	$51,813.52
12/3/2025	Ansbert Gadicke Major Shareholder	Sell	57,225	$0.87	$49,785.75
12/3/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	57,225	$0.87	$49,785.75
12/3/2025	Luke Evnin Director	Sell	36,726	$0.87	$31,951.62
12/2/2025	Ansbert Gadicke Major Shareholder	Sell	59,277	$0.89	$52,756.53
12/2/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	59,277	$0.89	$52,756.53
12/2/2025	Luke Evnin Director	Sell	38,043	$0.89	$33,858.27
12/1/2025	Ansbert Gadicke Major Shareholder	Sell	60,917	$0.94	$57,261.98
12/1/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	60,917	$0.94	$57,261.98
12/1/2025	Luke Evnin Director	Sell	39,096	$0.94	$36,750.24
11/28/2025	Ansbert Gadicke Major Shareholder	Sell	20,277	$0.99	$20,074.23
11/28/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	20,277	$0.99	$20,074.23
11/28/2025	Luke Evnin Director	Sell	13,014	$0.99	$12,883.86
11/26/2025	Ansbert Gadicke Major Shareholder	Sell	60,733	$0.98	$59,518.34
11/26/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	60,733	$0.98	$59,518.34
11/26/2025	Luke Evnin Director	Sell	38,978	$0.98	$38,198.44
11/25/2025	Ansbert Gadicke Major Shareholder	Sell	42,533	$0.92	$39,130.36
11/25/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	42,533	$0.92	$39,130.36
11/25/2025	Luke Evnin Director	Sell	27,297	$0.92	$25,113.24
11/24/2025	Ansbert Gadicke Major Shareholder	Sell	88,802	$0.98	$87,025.96
11/24/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	88,802	$0.98	$87,025.96
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11/24/2025	Luke Evnin Director	Sell	56,992	$0.98	$55,852.16
11/21/2025	Ansbert Gadicke Major Shareholder	Sell	64,331	$0.83	$53,394.73
11/21/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	64,331	$0.83	$53,394.73
11/21/2025	Luke Evnin Director	Sell	41,287	$0.83	$34,268.21
11/20/2025	Ansbert Gadicke Major Shareholder	Sell	41,152	$0.89	$36,625.28
11/20/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	41,152	$0.89	$36,625.28
11/20/2025	Luke Evnin Director	Sell	26,411	$0.89	$23,505.79
11/19/2025	Ansbert Gadicke Major Shareholder	Sell	66,324	$0.94	$62,344.56
11/19/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	66,324	$0.94	$62,344.56
11/19/2025	Luke Evnin Director	Sell	42,566	$0.94	$40,012.04
11/18/2025	Ansbert Gadicke Major Shareholder	Sell	52,627	$0.93	$48,943.11
11/18/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	52,627	$0.93	$48,943.11
11/18/2025	Luke Evnin Director	Sell	33,776	$0.93	$31,411.68
11/17/2025	Ansbert Gadicke Major Shareholder	Sell	57,061	$0.95	$54,207.95
11/17/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	57,061	$0.95	$54,207.95
11/17/2025	Luke Evnin Director	Sell	36,621	$0.95	$34,789.95
11/14/2025	Ansbert Gadicke Major Shareholder	Sell	61,640	$0.93	$57,325.20
11/14/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	61,640	$0.93	$57,325.20
11/14/2025	Luke Evnin Director	Sell	39,560	$0.93	$36,790.80
11/13/2025	Ansbert Gadicke Major Shareholder	Sell	90,951	$0.98	$89,131.98
11/13/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	90,951	$0.98	$89,131.98
11/13/2025	Luke Evnin Director	Sell	58,372	$0.98	$57,204.56
11/12/2025	Ansbert Gadicke Major Shareholder	Sell	40,669	$1.09	$44,329.21
11/12/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	40,669	$1.09	$44,329.21
11/12/2025	Luke Evnin Director	Sell	26,101	$1.09	$28,450.09
11/11/2025	Ansbert Gadicke Major Shareholder	Sell	55,810	$1.14	$63,623.40
11/11/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	55,810	$1.14	$63,623.40
11/11/2025	Luke Evnin Director	Sell	35,818	$1.14	$40,832.52
11/10/2025	Ansbert Gadicke Major Shareholder	Sell	48,570	$1.18	$57,312.60
11/10/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	48,570	$1.18	$57,312.60
11/10/2025	Luke Evnin Director	Sell	31,172	$1.18	$36,782.96
11/7/2025	Ansbert Gadicke Major Shareholder	Sell	68,480	$1.11	$76,012.80
11/7/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	68,480	$1.11	$76,012.80
11/7/2025	Luke Evnin Director	Sell	43,950	$1.11	$48,784.50
11/6/2025	Ansbert Gadicke Major Shareholder	Sell	54,452	$1.21	$65,886.92
11/6/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	54,452	$1.21	$65,886.92
11/6/2025	Luke Evnin Director	Sell	34,947	$1.21	$42,285.87
11/5/2025	Ansbert Gadicke Major Shareholder	Sell	47,950	$1.22	$58,499.00
11/5/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	47,950	$1.22	$58,499.00
11/5/2025	Luke Evnin Director	Sell	30,774	$1.22	$37,544.28
11/4/2025	Ansbert Gadicke Major Shareholder	Sell	140,488	$1.22	$171,395.36
11/4/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	140,488	$1.22	$171,395.36
11/4/2025	Luke Evnin Director	Sell	90,164	$1.22	$110,000.08
11/3/2025	Ansbert Gadicke Major Shareholder	Sell	94,063	$1.29	$121,341.27
11/3/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	94,063	$1.29	$121,341.27
11/3/2025	Luke Evnin Director	Sell	60,369	$1.29	$77,876.01
10/31/2025	Ansbert Gadicke Major Shareholder	Sell	114,044	$1.28	$145,976.32
10/31/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	114,044	$1.28	$145,976.32
10/31/2025	Luke Evnin Director	Sell	73,192	$1.28	$93,685.76
10/30/2025	Ansbert Gadicke Major Shareholder	Sell	86,936	$1.43	$124,318.48
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10/30/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	86,936	$1.43	$124,318.48
10/30/2025	Luke Evnin Director	Sell	55,795	$1.43	$79,786.85
10/29/2025	Ansbert Gadicke Major Shareholder	Sell	134,240	$1.55	$208,072.00
10/29/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	134,240	$1.55	$208,072.00
10/29/2025	Luke Evnin Director	Sell	86,154	$1.55	$133,538.70
10/28/2025	Ansbert Gadicke Major Shareholder	Sell	69,068	$1.64	$113,271.52
10/28/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	69,068	$1.64	$113,271.52
10/28/2025	Luke Evnin Director	Sell	44,327	$1.64	$72,696.28
10/27/2025	Ansbert Gadicke Major Shareholder	Sell	72,709	$1.72	$125,059.48
10/27/2025	Bioventures 2014 L.P. Mpm Major Shareholder	Sell	72,709	$1.72	$125,059.48
10/27/2025	Luke Evnin Director	Sell	46,664	$1.72	$80,262.08

(Data available from 1/1/2013 forward)

HOWL Insider Trading Activity - Frequently Asked Questions

The list of insiders at Werewolf Therapeutics includes Ansbert Gadicke, Bioventures 2014 L.P. Mpm, Luke Evnin, and Ra Capital Management, L.P.. Learn more on insiders at HOWL.

23.60% of Werewolf Therapeutics stock is owned by insiders. Learn more on HOWL's insider holdings.

The following insider purchased HOWL shares in the last 24 months: Ra Capital Management, L.P. ($435,273.40).

Insiders have purchased a total of 483,452 HOWL shares in the last 24 months for a total of $435,273.40 bought.

The following insiders have sold HOWL shares in the last 24 months: Ansbert Gadicke ($2,223,357.42), Bioventures 2014 L.P. Mpm ($2,225,418.57), Luke Evnin ($3,186,853.41), and Ra Capital Management, L.P. ($963,933.85).

Insiders have sold a total of 10,090,743 Werewolf Therapeutics shares in the last 24 months for a total of $8,599,563.25 sold.

Werewolf Therapeutics Active Insiders

Reid Leonard (Age 67)
COO

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Insider trading data for NASDAQ:HOWL was last updated on 7/7/2026, the date of the most recent reported insider or congressional trade. New trades are added as they're reported.

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Werewolf Therapeutics (HOWL) Insider Trading & Ownership

HOWL Insider Buying and Selling by Quarter

Werewolf Therapeutics Insider and Congressional Trades History

HOWL Insider Trading Activity - Frequently Asked Questions

Werewolf Therapeutics Active Insiders

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Werewolf Therapeutics (HOWL) Insider Trading & Ownership

Werewolf Therapeutics (NASDAQ:HOWL) Insider Buying and Selling Activity

HOWL Insider Buying and Selling by Quarter

Werewolf Therapeutics Insider and Congressional Trades History

HOWL Insider Trading Activity - Frequently Asked Questions

Who is on Werewolf Therapeutics' Insider Roster?

What percentage of Werewolf Therapeutics stock is owned by insiders?

Which Werewolf Therapeutics insiders have been buying company stock?

How much insider buying is happening at Werewolf Therapeutics?

Which Werewolf Therapeutics insiders have been selling company stock?

How much insider selling is happening at Werewolf Therapeutics?

Werewolf Therapeutics Active Insiders

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