KESON-BROOKES MAIKEN

PrivateCIK: 1693805
Location

FAYVILLE, MA

KESON-BROOKES MAIKEN (CLO & Corp. Secretary) sold 25K shares of RUBIUS THERAPEUTICS, INC. on the open market

Open‑market sale worth $506.0K. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderKESON-BROOKES MAIKENCIK 1693805
IssuerRUBIUS THERAPEUTICS, INC.CIK 1709401
Officer· CLO & Corp. Secretary
Since Nov 2019
-25K
Net shares
Net seller
$506.0K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
25K acquired · 50K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+25K

Price / share

$7.70

Trade value

$192.50K

% of position

New position
3/15/2021
0.0025K

Common Stock

Direct
S · Sale

Shares

25K

Price / share

$20.24

Trade value

$505.97K

% of position

New position
3/15/2021
25K0.00
Total

Net shares

+0.00

Net value

-$313.47K

Derivative Transactions1

Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

25K shares

Shares

25K

Strike price

7.70

Held after

225K

Exercisable

3/15/2021
KESON-BROOKES MAIKEN — Insider Transaction (Form 4) Filed Mar 15, 2021 | Finecho