Jonathan M. Rothberg, a director, sold Butterfly Network ($BFLY) shares on the open market 28 times in the past year for a total of $20.8 million, with his most recent sale on January 8, 2026. These $BFLY insider sales rank 657th among individual insiders by value. He also sold Quantum-Si ($QSIAW) shares once for about $80,100 on October 16, 2025, ranking 9,875th. Among nearly 12,000 insiders with sales, the average is $8.6 million over about six transactions. Rothberg made no open market purchases.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 6, 2026 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 351617 | $4.03 | 4,395,511.0000 | 252,087,541 | 7.41% | 0.14% |
| Jan. 7, 2026 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 452729 | $4.14 | 3,942,782.0000 | 252,087,541 | 10.30% | 0.18% |
| Jan. 8, 2026 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 335834 | $4.18 | 3,606,948.0000 | 252,087,541 | 8.52% | 0.13% |
| Dec. 24, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 2673 | $4.00 | 4,762,039.0000 | 252,087,541 | 0.06% | 0.00% |
| Dec. 23, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 44781 | $4.01 | 4,764,712.0000 | 252,087,541 | 0.93% | 0.02% |
| Dec. 26, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 14911 | $4.01 | 4,747,128.0000 | 252,087,541 | 0.31% | 0.01% |
| Dec. 15, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 601308 | $3.16 | 5,006,155.0000 | 252,087,541 | 10.72% | 0.24% |
| Dec. 16, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 50360 | $3.14 | 4,809,493.0000 | 252,087,541 | 1.04% | 0.02% |
| Dec. 16, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 196662 | $3.14 | 4,809,493.0000 | 252,087,541 | 3.93% | 0.08% |
| Dec. 16, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 37964 | $3.14 | 4,809,493.0000 | 252,087,541 | 0.78% | 0.02% |
| Dec. 11, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 123354 | $3.08 | 5,778,049.0000 | 252,087,541 | 2.09% | 0.05% |
| Dec. 12, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 111031 | $3.08 | 5,695,787.0000 | 252,087,541 | 1.91% | 0.04% |
| Dec. 10, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 288918 | $3.13 | 5,901,403.0000 | 252,087,541 | 4.67% | 0.11% |
| Dec. 12, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 82262 | $3.08 | 5,695,787.0000 | 252,087,541 | 1.42% | 0.03% |
| Dec. 8, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 543601 | $3.27 | 6,301,352.0000 | 252,087,541 | 7.94% | 0.22% |
| Dec. 8, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 225726 | $3.27 | 6,477,422.0000 | 252,087,541 | 3.37% | 0.09% |
| Dec. 9, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 176070 | $3.11 | 6,301,352.0000 | 252,087,541 | 2.72% | 0.07% |
| Dec. 5, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 37598 | $3.07 | 7,246,749.0000 | 252,087,541 | 0.52% | 0.01% |
| Dec. 4, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 64198 | $3.08 | 7,284,347.0000 | 252,087,541 | 0.87% | 0.03% |
| Nov. 28, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 132570 | $3.08 | 7,348,545.0000 | 252,087,541 | 1.77% | 0.05% |
| Nov. 25, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 224919 | $3.27 | 7,481,115.0000 | 252,087,541 | 2.92% | 0.09% |
| Nov. 24, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 370193 | $3.15 | 7,706,035.0000 | 252,087,541 | 4.58% | 0.15% |
| Nov. 24, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 370193 | $3.15 | 7,706,034.0000 | 252,087,541 | 4.58% | 0.15% |
| Nov. 24, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 370193 | $3.15 | 7,706,034.0000 | 252,087,541 | 4.58% | 0.15% |
| Nov. 25, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 224920 | $3.27 | 7,481,115.0000 | 252,087,541 | 2.92% | 0.09% |
| Nov. 25, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 224919 | $3.27 | 7,481,115.0000 | 252,087,541 | 2.92% | 0.09% |
| Nov. 26, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 442539 | $3.13 | 7,481,115.0000 | 252,087,541 | 5.59% | 0.18% |
| Nov. 3, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | S | Class A Common Stock | 100502 | $3.08 | 9,708,991.0000 | 252,087,541 | 1.02% | 0.04% |
| Oct. 16, 2025 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 26095 | $3.07 | 13,706,678.0000 | 209,041,000 | 0.19% | 0.01% |
| June 13, 2025 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | A | Class A Common Stock | 80434 | $0.00 | 9,809,493.0000 | 211,682,760 | 0.83% | 0.04% |
| May 19, 2025 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | A | Stock Option (right to buy) | 126095 | $0.00 | 126,095.0000 | 143,196,000 | 9999.99% | 0.09% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 834254 | $3.30 | 13,775,086.0000 | 142,399,000 | 5.71% | 0.59% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 42313 | $4.10 | 13,732,773.0000 | 142,399,000 | 0.31% | 0.03% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 834253 | $3.30 | 13,775,086.0000 | 142,399,000 | 5.71% | 0.59% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 42313 | $4.10 | 13,732,773.0000 | 142,399,000 | 0.31% | 0.03% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 834254 | $3.30 | 13,775,086.0000 | 142,399,000 | 5.71% | 0.59% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 42313 | $4.10 | 13,732,773.0000 | 142,399,000 | 0.31% | 0.03% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 834254 | $3.30 | 13,775,086.0000 | 142,399,000 | 5.71% | 0.59% |
| Dec. 27, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | S | Class A Common Stock | 42313 | $4.10 | 13,732,773.0000 | 142,399,000 | 0.31% | 0.03% |
| Aug. 28, 2024 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | J | Class A Common Stock | 952277 | $0.98 | 9,729,059.0000 | 205,385,544 | 8.92% | 0.46% |
| June 12, 2024 | Hyperfine, Inc. | $HYPR | ROTHBERG JONATHAN M | Director | A | Stock Options (right to buy) | 79200 | $0.00 | 79,200.0000 | 0 | 9999.99% | 0.00% |
| June 10, 2024 | Butterfly Network, Inc. | $BFLY | ROTHBERG JONATHAN M | Director | A | Class A Common Stock | 157894 | $0.00 | 10,681,336.0000 | 205,385,544 | 1.50% | 0.08% |
| May 16, 2024 | Quantum-Si Inc | $QSI | ROTHBERG JONATHAN M | Not found | A | Stock Option (right to buy) | 113281 | $0.00 | 113,281.0000 | 141,300,000 | 9999.99% | 0.08% |