Hunt Anthony actively sold REPLIGEN CORP ($RGEN) shares on the open market 29 times in the past year, totaling about $17.9 million. His most recent sale occurred on November 13, 2025. These transactions rank him 731st among 11,678 insiders by total value sold, surpassing the average of $8.6 million and six sales per insider. Hunt Anthony recorded no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | F | Common Stock | 9897 | $124.97 | 89,062.0000 | 56,290,749 | 10.00% | 0.02% |
| Feb. 24, 2026 | BIOLIFE SOLUTIONS INC | $BLFS | Hunt Anthony | Director | A | Common Stock | 8170 | $0.00 | 15,046.0000 | 48,723,535 | 118.82% | 0.02% |
| Dec. 4, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | J | Common Stock | 2000 | $0.00 | 98,959.0000 | 56,290,749 | 1.98% | 0.00% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 3000 | $155.45 | 88,436.0000 | 56,290,749 | 3.28% | 0.01% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2500 | $154.32 | 91,436.0000 | 56,290,749 | 2.66% | 0.00% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 2952 | $33.87 | 83,695.0000 | 56,290,749 | 3.66% | 0.01% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 1956 | $157.11 | 80,743.0000 | 56,290,749 | 2.37% | 0.00% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 5737 | $156.22 | 82,699.0000 | 56,290,749 | 6.49% | 0.01% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 1784 | $151.01 | 98,959.0000 | 56,290,749 | 1.77% | 0.00% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2100 | $152.17 | 96,859.0000 | 56,290,749 | 2.12% | 0.00% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2923 | $153.14 | 93,936.0000 | 56,290,749 | 3.02% | 0.01% |
| Nov. 13, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 2952 | $0.00 | 14,760.0000 | 56,290,749 | 25.00% | 0.01% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 3741 | $154.92 | 122,002.0000 | 56,290,749 | 2.98% | 0.01% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 25000 | $33.87 | 125,743.0000 | 56,290,749 | 24.82% | 0.04% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 4740 | $155.85 | 117,262.0000 | 56,290,749 | 3.89% | 0.01% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 4959 | $156.65 | 112,303.0000 | 56,290,749 | 4.23% | 0.01% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 11096 | $158.01 | 101,207.0000 | 56,290,749 | 9.88% | 0.02% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 464 | $158.51 | 100,743.0000 | 56,290,749 | 0.46% | 0.00% |
| Nov. 12, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 25000 | $0.00 | 157,344.0000 | 56,290,749 | 13.71% | 0.04% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 7584 | $121.42 | 102,922.0000 | 56,148,556 | 6.86% | 0.01% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 3262 | $119.64 | 125,388.0000 | 56,148,556 | 2.54% | 0.01% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 1108 | $118.32 | 128,650.0000 | 56,148,556 | 0.85% | 0.00% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 96 | $116.34 | 129,758.0000 | 56,148,556 | 0.07% | 0.00% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 20000 | $33.87 | 129,854.0000 | 56,148,556 | 18.21% | 0.04% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 20000 | $0.00 | 182,344.0000 | 56,148,556 | 9.88% | 0.04% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2179 | $122.23 | 100,743.0000 | 56,148,556 | 2.12% | 0.00% |
| Sept. 10, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 14882 | $120.19 | 110,506.0000 | 56,148,556 | 11.87% | 0.03% |
| June 11, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Units | 11364 | $0.00 | 0.0000 | 35,386,483 | 100.00% | 0.03% |
| June 12, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Restricted Stock Units | 14083 | $0.00 | 14,083.0000 | 35,386,483 | 9999.99% | 0.04% |
| June 12, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Stock Option (option to buy) | 6516 | $0.00 | 6,516.0000 | 35,386,483 | 9999.99% | 0.02% |
| June 11, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock | 11364 | $0.00 | 30,085.0000 | 35,386,483 | 60.70% | 0.03% |
| May 15, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2043 | $122.66 | 134,258.0000 | 56,148,556 | 1.50% | 0.00% |
| May 15, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 6533 | $124.34 | 110,129.0000 | 56,148,556 | 5.60% | 0.01% |
| May 15, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 268 | $125.20 | 109,861.0000 | 56,148,556 | 0.24% | 0.00% |
| May 15, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 17596 | $123.57 | 116,662.0000 | 56,148,556 | 13.11% | 0.03% |
| May 15, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 7 | $127.00 | 109,854.0000 | 56,148,556 | 0.01% | 0.00% |
| March 18, 2025 | BIOLIFE SOLUTIONS INC | $BLFS | Hunt Anthony | Director | A | Common Stock | 6876 | $0.00 | 6,876.0000 | 46,067,073 | 9999.99% | 0.01% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2283 | $153.70 | 136,301.0000 | 56,148,556 | 1.65% | 0.00% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 5000 | $33.87 | 141,301.0000 | 56,148,556 | 3.67% | 0.01% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 21756 | $59.52 | 163,057.0000 | 56,148,556 | 15.40% | 0.04% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 60 | $148.05 | 162,997.0000 | 56,148,556 | 0.04% | 0.00% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 100 | $150.38 | 162,897.0000 | 56,148,556 | 0.06% | 0.00% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 2518 | $151.09 | 160,379.0000 | 56,148,556 | 1.55% | 0.00% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 6176 | $151.96 | 154,203.0000 | 56,148,556 | 3.85% | 0.01% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 15619 | $152.82 | 138,584.0000 | 56,148,556 | 10.13% | 0.03% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 5000 | $0.00 | 202,344.0000 | 56,148,556 | 2.41% | 0.01% |
| March 17, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 21756 | $0.00 | 0.0000 | 56,148,556 | 100.00% | 0.04% |
| March 2, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Units | 2058 | $0.00 | 0.0000 | 34,076,321 | 100.00% | 0.01% |
| March 3, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | F | Common Stock | 10142 | $155.38 | 136,301.0000 | 0 | 6.93% | 0.00% |
| March 2, 2025 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock | 2058 | $0.00 | 18,721.0000 | 34,076,321 | 12.35% | 0.01% |
| Feb. 27, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | F | Common Stock | 2825 | $156.54 | 146,443.0000 | 0 | 1.89% | 0.00% |
| Feb. 24, 2025 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | F | Common Stock | 2380 | $164.74 | 149,268.0000 | 0 | 1.57% | 0.00% |
| Dec. 5, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 11808 | $0.00 | 8,856.0000 | 0 | 0.00% | 0.00% |
| Dec. 5, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 11808 | $33.87 | 151,648.0000 | 0 | 8.44% | 0.00% |
| Nov. 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 24246 | $139.67 | 139,840.0000 | 0 | 14.78% | 0.00% |
| Nov. 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 24246 | $0.00 | 0.0000 | 0 | 0.00% | 0.00% |
| Nov. 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 24246 | $33.87 | 164,086.0000 | 0 | 17.34% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Stock Option (Right to Buy) | 10000 | $0.00 | 24,246.0000 | 0 | 70.20% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 1495 | $143.77 | 160,536.0000 | 0 | 0.92% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 9369 | $144.88 | 151,167.0000 | 0 | 5.84% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 10723 | $145.95 | 140,444.0000 | 0 | 7.09% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | S | Common Stock | 604 | $146.67 | 139,840.0000 | 0 | 0.43% | 0.00% |
| Sept. 10, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | M | Common Stock | 10000 | $33.87 | 162,031.0000 | 0 | 6.58% | 0.00% |
| Sept. 3, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | D | Stock Option (Right to Buy) | 13057 | $0.00 | 6,528.0000 | 0 | 66.67% | 0.00% |
| Sept. 3, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Not found | D | Common Stock | 13146 | $0.00 | 152,031.0000 | 0 | 7.96% | 0.00% |
| June 13, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Restricted Stock Unit | 11364 | $0.00 | 11,364.0000 | 32,710,894 | 9999.99% | 0.03% |
| June 13, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Stock Option (option to buy) | 15996 | $0.00 | 15,996.0000 | 32,710,894 | 9999.99% | 0.05% |
| June 12, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Unit | 7777 | $0.00 | 0.0000 | 32,710,894 | 100.00% | 0.02% |
| June 14, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | P | Common Stock | 2000 | $124.08 | 165,177.0000 | 0 | 1.23% | 0.00% |
| June 12, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock | 7777 | $0.00 | 16,663.0000 | 32,710,894 | 87.52% | 0.02% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 3925 | $170.04 | 164,146.0000 | 0 | 2.34% | 0.00% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 969 | $171.03 | 163,177.0000 | 0 | 0.59% | 0.00% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 2963 | $169.27 | 168,071.0000 | 0 | 1.73% | 0.00% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 3933 | $168.33 | 171,034.0000 | 0 | 2.25% | 0.00% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 4008 | $167.05 | 174,967.0000 | 0 | 2.24% | 0.00% |
| May 21, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 4274 | $166.36 | 178,975.0000 | 0 | 2.33% | 0.00% |
| March 18, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | G | Common Stock | 2000 | $0.00 | 183,249.0000 | 0 | 1.08% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | M | Common Stock | 1 | $16.55 | 201,956.0000 | 0 | 0.00% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | M | Stock Option (Right to Buy) | 1 | $0.00 | 0.0000 | 0 | 0.00% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 3377 | $195.49 | 198,579.0000 | 0 | 1.67% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 6228 | $196.32 | 192,351.0000 | 0 | 3.14% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 156 | $202.55 | 185,249.0000 | 0 | 0.08% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 1666 | $197.39 | 190,685.0000 | 0 | 0.87% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 1347 | $198.55 | 189,338.0000 | 0 | 0.71% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 1822 | $199.53 | 187,516.0000 | 0 | 0.96% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 1305 | $200.56 | 186,211.0000 | 0 | 0.70% | 0.00% |
| March 8, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | S | Common Stock | 806 | $201.75 | 185,405.0000 | 0 | 0.43% | 0.00% |
| March 7, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | F | Common Stock | 2867 | $195.72 | 201,955.0000 | 0 | 1.40% | 0.00% |
| March 4, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | F | Common Stock | 1111 | $193.99 | 212,097.0000 | 0 | 0.52% | 0.00% |
| March 5, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | F | Common Stock | 7275 | $195.52 | 204,822.0000 | 0 | 3.43% | 0.00% |
| March 4, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Unit | 2057 | $0.00 | 2,058.0000 | 32,239,394 | 49.99% | 0.01% |
| March 4, 2024 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock, par value $0.001 | 2057 | $0.00 | 8,886.0000 | 32,239,394 | 30.12% | 0.01% |
| March 1, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | F | Common Stock | 3322 | $191.79 | 213,208.0000 | 0 | 1.53% | 0.00% |
| Feb. 29, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | A | Common Stock | 2504 | $0.00 | 216,530.0000 | 0 | 1.17% | 0.00% |
| Feb. 27, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | A | Common Stock | 19719 | $0.00 | 214,026.0000 | 0 | 10.15% | 0.00% |
| Feb. 27, 2024 | REPLIGEN CORP | $RGEN | Hunt Anthony | Chief Executive Officer | A | Stock Option (Right to Buy) | 19585 | $0.00 | 19,585.0000 | 0 | 9999.99% | 0.00% |
| June 15, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Stock Option (option to buy) | 12076 | $0.00 | 12,076.0000 | 31,965,799 | 9999.99% | 0.04% |
| June 15, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | A | Restricted Stock Units | 7777 | $0.00 | 7,777.0000 | 31,965,799 | 9999.99% | 0.02% |
| June 14, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Units | 4771 | $0.00 | 0.0000 | 31,965,799 | 100.00% | 0.01% |
| June 14, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock | 4771 | $0.00 | 6,829.0000 | 31,965,799 | 231.83% | 0.01% |
| March 2, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Common Stock, par value $0.001 | 2058 | $0.00 | 2,058.0000 | 31,492,531 | 9999.99% | 0.01% |
| March 2, 2023 | 908 Devices Inc. | $MASS | Hunt Anthony | Not found | M | Restricted Stock Unit | 2058 | $0.00 | 4,115.0000 | 31,492,531 | 33.34% | 0.01% |