-
Signature
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/s/ Lee G. Giguere, Attorney-in-Fact
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Issuer symbol
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N/A
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Transactions as of
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05 Aug 2021
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Net transactions value
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$0
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Form type
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4
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Filing time
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05 Aug 2021, 17:51:50 UTC
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
CHMA |
Common Stock |
Disposed to Issuer |
|
-25,000 |
-100% |
|
0 |
05 Aug 2021 |
See Footnote |
F1, F2, F3 |
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Underlying Class |
Amount |
Exercise Price |
Ownership |
Footnotes |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-91,954 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
91,954 |
$3.29 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-72,683 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
72,683 |
$5.57 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-10,000 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
10,000 |
$3.14 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-13,000 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
13,000 |
$1.35 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-13,000 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
13,000 |
$1.45 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-13,000 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
13,000 |
$7.98 |
Direct |
F1, F4 |
| transaction |
CHMA |
Stock Option (Right to Buy) |
Disposed to Issuer |
$0 |
-13,000 |
-100% |
$0.000000* |
0 |
05 Aug 2021 |
Common Stock |
13,000 |
$5.81 |
Direct |
F1, F4 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
DAVID M. STACK is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
Explanation of Responses: