David S. Rosenblatt, CEO of 1stdibs.com, Inc. ($DIBS), sold shares on the open market three times in the past year for a total of about $3.7 million. His most recent DIBS insider sale occurred on December 8, 2025. These transactions rank 2,368th among 11,678 insiders, trailing the average sale value of $8.6 million over 6.4 trades. Rosenblatt made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 16, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | A | Restricted Stock Units | 500000 | $0.00 | 500,000.0000 | 36,614,348 | 9999.99% | 1.37% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,702,088.0000 | 36,614,348 | 1.41% | 0.10% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,749,588.0000 | 36,614,348 | 1.76% | 0.13% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 570,000.0000 | 36,614,348 | 7.69% | 0.13% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 380,000.0000 | 36,614,348 | 11.11% | 0.13% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 150,000.0000 | 36,614,348 | 20.00% | 0.10% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,797,088.0000 | 36,614,348 | 1.73% | 0.13% |
| March 9, 2026 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 62088 | $5.49 | 2,735,000.0000 | 36,614,348 | 2.22% | 0.17% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,642,795.0000 | 36,614,348 | 1.44% | 0.10% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | S | Common Stock | 73207 | $5.96 | 2,664,588.0000 | 36,614,348 | 2.67% | 0.20% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,737,795.0000 | 36,614,348 | 1.77% | 0.13% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,690,295.0000 | 36,614,348 | 1.80% | 0.13% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 617,500.0000 | 36,614,348 | 7.14% | 0.13% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 427,500.0000 | 36,614,348 | 10.00% | 0.13% |
| Dec. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 187,500.0000 | 36,614,348 | 16.67% | 0.10% |
| Nov. 24, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 666666 | $3.87 | 3,200,366.0000 | 36,614,348 | 26.31% | 1.82% |
| Nov. 24, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | S | Common Stock | 595071 | $5.09 | 2,605,295.0000 | 36,614,348 | 18.59% | 1.63% |
| Nov. 24, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Employee Stock Option (right to buy) | 666666 | $0.00 | 0.0000 | 36,614,348 | 100.00% | 1.82% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | S | Common Stock | 73207 | $2.80 | 2,533,700.0000 | 36,246,609 | 2.81% | 0.20% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,511,907.0000 | 36,246,609 | 1.52% | 0.10% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,559,407.0000 | 36,246,609 | 1.89% | 0.13% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 665,000.0000 | 36,246,609 | 6.67% | 0.13% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 475,000.0000 | 36,246,609 | 9.09% | 0.13% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 225,000.0000 | 36,246,609 | 14.29% | 0.10% |
| Sept. 8, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,606,907.0000 | 36,246,609 | 1.86% | 0.13% |
| June 23, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Restricted Stock Units | 1257 | $0.00 | 0.0000 | 83,130,000 | 100.00% | 0.00% |
| June 23, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | A | Common Stock, par value $0.0001 | 1257 | $0.00 | 85,756.0000 | 83,130,000 | 1.49% | 0.00% |
| June 18, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | A | Restricted Stock Units | 6791 | $0.00 | 6,791.0000 | 83,130,000 | 9999.99% | 0.01% |
| June 17, 2025 | ETSY INC | $ETSY | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 1299 | $0.00 | 0.0000 | 131,721,000 | 100.00% | 0.00% |
| June 17, 2025 | ETSY INC | $ETSY | ROSENBLATT DAVID S | Not found | M | Common Stock | 1299 | $0.00 | 1,299.0000 | 131,721,000 | 9999.99% | 0.00% |
| June 17, 2025 | ETSY INC | $ETSY | ROSENBLATT DAVID S | Not found | A | Restricted Stock Units | 4733 | $0.00 | 4,733.0000 | 131,721,000 | 9999.99% | 0.00% |
| June 15, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Restricted Stock Units | 1610 | $0.00 | 1,609.0000 | 83,130,000 | 50.02% | 0.00% |
| June 15, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Common Stock, par value $0.0001 | 1610 | $0.00 | 84,499.0000 | 83,130,000 | 1.94% | 0.00% |
| June 11, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Common Stock, par value $0.0001 | 2076 | $0.00 | 82,889.0000 | 83,130,000 | 2.57% | 0.00% |
| June 11, 2025 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Restricted Stock Units | 2076 | $0.00 | 4,152.0000 | 83,130,000 | 33.33% | 0.00% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,547,106.0000 | 35,827,866 | 1.90% | 0.13% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 262,500.0000 | 35,827,866 | 12.50% | 0.10% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 522,500.0000 | 35,827,866 | 8.33% | 0.13% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 712,500.0000 | 35,827,866 | 6.25% | 0.13% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,452,106.0000 | 35,827,866 | 1.55% | 0.10% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,499,606.0000 | 35,827,866 | 1.94% | 0.13% |
| June 9, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 72699 | $2.95 | 2,474,407.0000 | 35,827,866 | 2.85% | 0.20% |
| April 1, 2025 | ETSY INC | $ETSY | ROSENBLATT DAVID S | Not found | A | Restricted Stock Units | 1299 | $0.00 | 1,299.0000 | 131,721,000 | 9999.99% | 0.00% |
| March 14, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | A | Restricted Stock Units | 760000 | $0.00 | 760,000.0000 | 35,827,866 | 9999.99% | 2.12% |
| March 10, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,401,319.0000 | 35,827,866 | 1.59% | 0.10% |
| March 10, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,448,819.0000 | 35,827,866 | 1.98% | 0.13% |
| March 10, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 34213 | $3.36 | 2,414,606.0000 | 35,827,866 | 1.40% | 0.10% |
| March 10, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 570,000.0000 | 35,827,866 | 7.69% | 0.13% |
| March 10, 2025 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 300,000.0000 | 35,827,866 | 11.11% | 0.10% |
| Dec. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 337,500.0000 | 36,827,986 | 10.00% | 0.10% |
| Dec. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,363,282.0000 | 36,827,986 | 1.61% | 0.10% |
| Dec. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 46963 | $3.78 | 2,363,819.0000 | 36,827,986 | 1.95% | 0.13% |
| Dec. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,410,782.0000 | 36,827,986 | 2.01% | 0.13% |
| Dec. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 617,500.0000 | 36,827,986 | 7.14% | 0.13% |
| Sept. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 375,000.0000 | 36,693,138 | 9.09% | 0.10% |
| Sept. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 665,000.0000 | 36,693,138 | 6.67% | 0.13% |
| Sept. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 46963 | $4.81 | 2,325,782.0000 | 36,693,138 | 1.98% | 0.13% |
| Sept. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 47500 | $0.00 | 2,372,745.0000 | 36,693,138 | 2.04% | 0.13% |
| Sept. 9, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,325,245.0000 | 36,693,138 | 1.64% | 0.10% |
| June 23, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Common Stock, par value $0.0001 | 1034 | $0.00 | 80,813.0000 | 86,464,000 | 1.30% | 0.00% |
| June 23, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 1034 | $0.00 | 1,035.0000 | 86,464,000 | 49.98% | 0.00% |
| June 15, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 1325 | $0.00 | 2,652.0000 | 86,464,000 | 33.32% | 0.00% |
| June 15, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Common Stock, par value $0.0001 | 1325 | $0.00 | 79,779.0000 | 86,464,000 | 1.69% | 0.00% |
| June 11, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | A | Restricted Stock Units | 5131 | $0.00 | 5,131.0000 | 86,464,000 | 9999.99% | 0.01% |
| June 10, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 412,500.0000 | 39,915,136 | 8.33% | 0.09% |
| June 10, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 47500 | $0.00 | 712,500.0000 | 39,915,136 | 6.25% | 0.12% |
| June 10, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 85000 | $0.00 | 2,334,708.0000 | 39,915,136 | 3.78% | 0.21% |
| June 10, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 46963 | $5.50 | 2,287,745.0000 | 39,915,136 | 2.01% | 0.12% |
| May 14, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 549 | $0.00 | 0.0000 | 86,464,000 | 100.00% | 0.00% |
| May 14, 2024 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Common Stock, par value $0.0001 | 549 | $0.00 | 78,454.0000 | 86,464,000 | 0.70% | 0.00% |
| March 8, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Common Stock | 37500 | $0.00 | 2,264,802.0000 | 39,915,136 | 1.68% | 0.09% |
| March 8, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | M | Restricted Stock Units | 37500 | $0.00 | 450,000.0000 | 39,915,136 | 7.69% | 0.09% |
| March 8, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | A | Restricted Stock Units | 760000 | $0.00 | 760,000.0000 | 39,915,136 | 9999.99% | 1.90% |
| March 8, 2024 | 1stdibs.com, Inc. | $DIBS | ROSENBLATT DAVID S | Chief Executive Officer | F | Common Stock | 15094 | $5.25 | 2,249,708.0000 | 39,915,136 | 0.67% | 0.04% |
| June 23, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Common Stock, par value $0.0001 | 1034 | $0.00 | 76,558.0000 | 86,350,000 | 1.37% | 0.00% |
| June 23, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 1034 | $0.00 | 2,069.0000 | 86,350,000 | 33.32% | 0.00% |
| June 25, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Common Stock, par value $0.0001 | 1347 | $0.00 | 77,905.0000 | 86,350,000 | 1.76% | 0.00% |
| June 25, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Not found | M | Restricted Stock Units | 1347 | $0.00 | 0.0000 | 86,350,000 | 100.00% | 0.00% |
| June 15, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | A | Restricted Stock Units | 3977 | $0.00 | 3,977.0000 | 86,350,000 | 9999.99% | 0.00% |
| May 14, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Restricted Stock Units | 549 | $0.00 | 549.0000 | 86,350,000 | 50.00% | 0.00% |
| May 14, 2023 | IAC Inc. | $IAC | ROSENBLATT DAVID S | Director | M | Common Stock, par value $0.0001 | 549 | $0.00 | 75,524.0000 | 86,350,000 | 0.73% | 0.00% |