DeSchuytner Brian

CIK 00017821631 companyCAMBRIDGE, MA

SEC Profile

Transactions

Companies

Filings

CIK

0001782163

Recent Transactions

50 trades

Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−2,500→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−327→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−2,671→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−178→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−5,590→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−4,009→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−7,734→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−3,515→ 0 total
Disposition from Tender
Mersana Therapeutics, Inc.$MRSN
Common Stock
2026-01-06−5,015→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−1,750→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−800→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−250→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−9,422→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−1,077→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−6,381→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−818→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−4,218→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−281→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−4,172→ 0 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-16$0.58/sh−8,470→ 121,393 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-15−6,250→ 0 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-15+14,583→ 129,863 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-15+6,250→ 115,280 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (Right to Buy)
2025-01-15+281,250→ 281,250 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-15+62,500→ 62,500 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-15$0.63/sh−2,331→ 109,030 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-15−14,583→ 43,750 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-14$0.66/sh−3,713→ 105,111 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-14−6,250→ 6,250 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-14+6,250→ 111,361 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-13−10,000→ 20,000 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-13+10,000→ 108,824 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-10-03$1.96/sh−5,598→ 94,824 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-10-02$2.00/sh−8,089→ 100,422 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-10-01−50,000→ 0 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-10-01+50,000→ 108,511 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-01-16$2.71/sh−9,327→ 54,511 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-15−3,958→ 0 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (Right to Buy)
2024-01-15+262,500→ 262,500 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-15−6,250→ 6,250 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-15+58,333→ 58,333 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-01-15+6,250→ 59,880 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-01-15+3,958→ 63,838 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-14−6,250→ 12,500 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-01-14+6,250→ 55,630 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-01-13+10,000→ 47,380 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-13−10,000→ 30,000 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted stock unit
2023-09-05+50,000→ 50,000 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2023-01-17$5.74/sh−5,131→ 32,781 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted stock unit
2023-01-15−6,250→ 12,500 total

Companies

Mersana Therapeutics, Inc.
SVP, COO & CFO
$MRSN

Recent Filings

Address

C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE

CAMBRIDGE, MA, 02139

View on SEC.gov