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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•54 filings

HOWL

Werewolf Therapeutics, Inc.

No net buying or selling imbalance over the last 3 months

No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

$0.00

0 buyers · 0 sellers

12-month purchases

$0.00

0 distinct insiders

12-month sales

$7,486,905

17 distinct insiders

Highlighted alerts

20

80 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

100
Raw transactions
Everything returned by the filing
100
Voluntary view
P/S trades after deterministic checks
0
Administrative noise
Stored, never alerted
80
10b5-1
Shown as informational
SEC ownership XML facts
Code
S
Shares
107,429
Price
$0.31
Footnotes
8

Transaction effected pursuant to a plan established pursuant to Rule 10b5-1 dated March 26, 2026. The shares were sold as follows: 3,832 by MPM Asset Management LLC ("AM LLC"), 24,197 by MPM BioVentures 2014, L.P. ("BV 2014"), 1,614 by MPM BIoVentures 2014(B), L.P. ("BV 2014(B)"), 833 by MPM Asset Management Investors BV2014 LLC ("AM BV2014") and 5,294 by MPM Oncology Innovations Fund, L.P. ("MPM OIF"). The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.3128 to $0.3388 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. MPM BioVentures 2014 GP LLC and MPM BioVentures 2014 LLC ("BV LLC") are the direct and indirect general partners of BV 2014 and BV 2014(B). BV LLC is the manager of AM BV2014. MPM Oncology Innovations Fund GP LLC ("MPM OIF GP") is the general partner of MPM OIF. Luke Evnin is a member of AM LLC, a Managing Director of BV LLC and a manager of MPM OIF GP. The Reporting Person disclaims beneficial ownership of the securities except to the extent of his pecuniary interest therein. The shares are held as follows: 11,509 by AM LLC, 72,676 by BV 2014, 4,845 by BV 2014(B), 2,499 by AM BV2014 and 15,900 by MPM OIF. The shares were sold as follows: 11,509 by AM LLC, 72,676 by BV 2014, 4,845 by BV 2014(B), 2,499 by AM BV2014 and 15,900 by MPM OIF. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $0.295 to $0.3342 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. No shares held by AM LLC, BV 2014, BV 2014(B), AM BV2014 and MPM OIF.

Raspberry interpretation
Informational — no alert

Reason: rule_10b5_1. The trade is reported under a Rule 10b5-1 plan.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

100 transactions

EVNIN LUKE

Director

Sale 10b5-1
Shares
107,429
Price
$0.31
Value
$33,303
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
35,770
Price
$0.32
Value
$11,446
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
157,084
Price
$0.30
Value
$47,125
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
27,695
Price
$0.35
Value
$9,693
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
389,216
Price
$0.35
Value
$136,226
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
9,939
Price
$0.37
Value
$3,677
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
139,686
Price
$0.37
Value
$51,684
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
8,554
Price
$0.39
Value
$3,336
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
120,216
Price
$0.39
Value
$46,884
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
11,322
Price
$0.40
Value
$4,529
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
159,119
Price
$0.40
Value
$63,648
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
17,437
Price
$0.38
Value
$6,626
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
245,066
Price
$0.38
Value
$93,125
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
3,051
Price
$0.37
Value
$1,129
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
42,872
Price
$0.37
Value
$15,863
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
24,565
Price
$0.37
Value
$9,089
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
345,235
Price
$0.37
Value
$127,737
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
76,928
Price
$0.37
Value
$28,463
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
60,547
Price
$0.40
Value
$24,219
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
24,946
Price
$0.40
Value
$9,978
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
20,072
Price
$0.44
Value
$8,832
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
29,749
Price
$0.42
Value
$12,495
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
29,595
Price
$0.45
Value
$13,318
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
80,459
Price
$0.47
Value
$37,816
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
32,556
Price
$0.45
Value
$14,650
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
27,698
Price
$0.46
Value
$12,741
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
80,852
Price
$0.48
Value
$38,809
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
67,950
Price
$0.47
Value
$31,937
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
87,425
Price
$0.45
Value
$39,341
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
36,387
Price
$0.42
Value
$15,283
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
85,895
Price
$0.43
Value
$36,935
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
62,970
Price
$0.45
Value
$28,337
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
22,184
Price
$0.50
Value
$11,092
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
44,679
Price
$0.54
Value
$24,127
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
6,719
Price
$0.64
Value
$4,300
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
94,432
Price
$0.64
Value
$60,436
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
67,885
Price
$0.64
Value
$43,446
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
5,812
Price
$0.67
Value
$3,894
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
81,678
Price
$0.67
Value
$54,724
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
33,948
Price
$0.67
Value
$22,745
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
25,012
Price
$0.71
Value
$17,759
Open SEC filing

RA CAPITAL MANAGEMENT, L.P.

10% owner

SaleAlert
Shares
351,514
Price
$0.71
Value
$249,575
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
305,741
Price
$0.70
Value
$214,019
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
79,086
Price
$0.63
Value
$49,824
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
14,635
Price
$0.66
Value
$9,659
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
6,860
Price
$0.69
Value
$4,733
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
47,963
Price
$0.72
Value
$34,533
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
58,394
Price
$0.73
Value
$42,628
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
168,262
Price
$0.72
Value
$121,149
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
56,559
Price
$0.69
Value
$39,026
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
95,412
Price
$0.73
Value
$69,651
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
53,940
Price
$0.85
Value
$45,849
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
38,782
Price
$0.54
Value
$20,942
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
37,413
Price
$0.55
Value
$20,577
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
30,616
Price
$0.57
Value
$17,451
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
43,198
Price
$0.55
Value
$23,759
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
58,980
Price
$0.57
Value
$33,619
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
24,678
Price
$0.61
Value
$15,054
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
7,716
Price
$0.63
Value
$4,861
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
11,915
Price
$0.64
Value
$7,626
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
40,761
Price
$0.65
Value
$26,495
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
18,378
Price
$0.64
Value
$11,762
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
18,568
Price
$0.63
Value
$11,698
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
24,962
Price
$0.62
Value
$15,476
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
34,847
Price
$0.61
Value
$21,257
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
108,606
Price
$0.61
Value
$66,250
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
35,632
Price
$0.63
Value
$22,448
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
16,310
Price
$0.65
Value
$10,602
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
71,428
Price
$0.63
Value
$45,000
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
59,307
Price
$0.69
Value
$40,922
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
9,983
Price
$1.14
Value
$11,381
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
14,548
Price
$1.05
Value
$15,275
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
23,640
Price
$1.07
Value
$25,295
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
17,858
Price
$1.08
Value
$19,287
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
28,009
Price
$1.07
Value
$29,970
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
37,104
Price
$1.06
Value
$39,330
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
44,570
Price
$1.01
Value
$45,016
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
34,041
Price
$0.99
Value
$33,701
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
16,568
Price
$0.97
Value
$16,071
Open SEC filing

MPM BioVentures 2014, L.P.

Former 10% Owner

Sale 10b5-1
Shares
83,230
Price
$0.97
Value
$80,733
Open SEC filing

GADICKE ANSBERT

Former 10% Owner

Sale 10b5-1
Shares
83,230
Price
$0.97
Value
$80,733
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
53,416
Price
$0.97
Value
$51,814
Open SEC filing

MPM BioVentures 2014, L.P.

Former 10% Owner

Sale 10b5-1
Shares
57,225
Price
$0.87
Value
$49,786
Open SEC filing

GADICKE ANSBERT

Former 10% Owner

Sale 10b5-1
Shares
57,225
Price
$0.87
Value
$49,786
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
36,726
Price
$0.87
Value
$31,952
Open SEC filing

MPM BioVentures 2014, L.P.

Former 10% Owner

Sale 10b5-1
Shares
59,277
Price
$0.89
Value
$52,757
Open SEC filing

GADICKE ANSBERT

Former 10% Owner

Sale 10b5-1
Shares
59,277
Price
$0.89
Value
$52,757
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
38,043
Price
$0.89
Value
$33,858
Open SEC filing

MPM BioVentures 2014, L.P.

10% owner

Sale 10b5-1
Shares
60,917
Price
$0.94
Value
$57,262
Open SEC filing

GADICKE ANSBERT

10% owner

Sale 10b5-1
Shares
60,917
Price
$0.94
Value
$57,262
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
39,096
Price
$0.94
Value
$36,750
Open SEC filing

MPM BioVentures 2014, L.P.

10% owner

Sale 10b5-1
Shares
20,277
Price
$0.99
Value
$20,074
Open SEC filing

GADICKE ANSBERT

10% owner

Sale 10b5-1
Shares
20,277
Price
$0.99
Value
$20,074
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
13,014
Price
$0.99
Value
$12,884
Open SEC filing

MPM BioVentures 2014, L.P.

10% owner

Sale 10b5-1
Shares
60,733
Price
$0.98
Value
$59,518
Open SEC filing

GADICKE ANSBERT

10% owner

Sale 10b5-1
Shares
60,733
Price
$0.98
Value
$59,518
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
38,978
Price
$0.98
Value
$38,198
Open SEC filing

MPM BioVentures 2014, L.P.

10% owner

Sale 10b5-1
Shares
42,533
Price
$0.92
Value
$39,130
Open SEC filing

GADICKE ANSBERT

10% owner

Sale 10b5-1
Shares
42,533
Price
$0.92
Value
$39,130
Open SEC filing

EVNIN LUKE

Director

Sale 10b5-1
Shares
27,297
Price
$0.92
Value
$25,113
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.