Huber Martin H. Jr.

CIK 00016532764 companiesCAMBRIDGE, MA

SEC Profile

Transactions

Companies

Filings

CIK

0001653276

Recent Transactions

50 trades

Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−99→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−364→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−179→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−1,800→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−13,340→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−12,121→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−135→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−26,713→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−27,878→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−7,467→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−497→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−407→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−1,328→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−1,002→ 0 total
Disposition from Tender
Mersana Therapeutics, Inc.$MRSN
Common Stock
2026-01-06−9,573→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−1,923→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Units
2026-01-06−7,256→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−734→ 0 total
Disposition to Issuer
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2026-01-06−5,938→ 0 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-09-12$7.31/sh−2,012→ 9,572 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-09-11+6,670→ 11,584 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-09-11−6,670→ 13,340 total
Purchase
Syndax Pharmaceuticals Inc$SNDX
Common Stock
2025-05-19$8.99/sh+5,000→ 79,000 total
Award
Syndax Pharmaceuticals Inc$SNDX
Common Stock
2025-02-05+25,000→ 74,000 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-16$0.58/sh−4,514→ 122,875 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (Right to Buy)
2025-01-15+816,300→ 816,300 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-15−11,062→ 33,188 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2025-01-15+11,062→ 127,389 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2025-01-15+181,400→ 181,400 total
Sale
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-09-12$1.76/sh−50,423→ 116,327 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-09-11−166,750→ 500,250 total
Exercise/Conversion
Mersana Therapeutics, Inc.$MRSN
Common Stock
2024-09-11+166,750→ 166,750 total
Award
Syndax Pharmaceuticals Inc$SNDX
Common Stock
2024-02-07+17,000→ 49,000 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted Stock Unit
2024-01-15+44,250→ 44,250 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (Right to Buy)
2024-01-15+199,125→ 199,125 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2023-10-02+9,102→ 9,102 total
Award
Mersana Therapeutics, Inc.$MRSN
Restricted stock unit
2023-09-11+667,000→ 667,000 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock option (right to buy)
2023-09-11+1,000,000→ 1,000,000 total
Award
Xilio Therapeutics, Inc.$XLO
Stock Option (right to buy)
2023-08-16+136,500→ 136,500 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2023-07-03+4,477→ 4,477 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2023-06-08+18,355→ 18,355 total
Award
Mersana Therapeutics, Inc.$MRSN
Common Stock
2023-06-08+14,467→ 14,467 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2023-04-03+3,375→ 3,375 total
Award
Syndax Pharmaceuticals Inc$SNDX
Common Stock
2023-02-02+16,000→ 32,000 total
Award
Xilio Therapeutics, Inc.$XLO
Stock Option (right to buy)
2023-01-01+136,500→ 136,500 total
Award
Xilio Therapeutics, Inc.$XLO
Stock Option (right to buy)
2022-06-15+20,000→ 20,000 total
Award
Xilio Therapeutics, Inc.$XLO
Stock Option (right to buy)
2022-06-15+20,000→ 20,000 total
Award
Mersana Therapeutics, Inc.$MRSN
Stock Option (right to buy)
2022-06-09+45,000→ 45,000 total
Award
Xilio Therapeutics, Inc.$XLO
Stock Option (right to buy)
2022-02-22+65,000→ 65,000 total
Award
Syndax Pharmaceuticals Inc$SNDX
Common Stock
2022-02-02+16,000→ 16,000 total

Companies

Recent Filings

Address

C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE

CAMBRIDGE, MA, 02139

View on SEC.gov