Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks - Latest Activist Disclosures

This table shows recent activist investor (Schedule 13D) filings made in this industry. Any investor or hedge fund that makes an investment with the intention of influencing management is considered an activist investor and must file a 13D.

Date Form Target Company Investor Shares Ownership
(Percent)		 Ownership Change
(Percent)
2025-09-05 13D/A SSKN / STRATA Skin Sciences, Inc. Accelmed Growth Partners, L.P. 1,441,835 27.40 0.00
2025-09-02 13D/A STAA / STAAR Surgical Company Broadwood Partners, L.p. 13,545,391 27.30 0.00
2025-08-29 13D/A RVP / Retractable Technologies, Inc. Shaw Thomas J 16,476,925 55.00 3.30
2025-08-26 13D ECIA / Encision Inc. Shepard Brandon Jason 1,005,833 6.00
2025-08-26 13D ECIA / Encision Inc. Fries Robert H 1,380,138 8.20
2025-08-26 13D ECIA / Encision Inc. Trudel Gregory J. 1,484,072 8.70
2025-08-22 13D/A SCND / Scientific Industries, Inc. Pessin Sandra F 570,000 4.70 22.18
2025-08-21 13D/A BLFS / BioLife Solutions, Inc. Casdin Capital, LLC 6,707,165 14.00 -6.94
2025-08-19 13D RPID / Rapid Micro Biosystems, Inc. Spignesi Robert G Jr 2,647,256 6.30
2025-08-13 13D/A BLFS / BioLife Solutions, Inc. Casdin Capital, LLC 7,207,165 15.00 -6.49
2025-08-12 13D/A AORT / Artivion, Inc. Juniper Investment Company, LLC 1,864,449 4.00 -10.83
2025-08-12 13D/A STIM / Neuronetics, Inc. Madryn Asset Management, LP 20,737,061 31.40 -14.44
2025-08-12 13D/A KODK / Eastman Kodak Company GO EK Ventures IV, LLC 15,150,511 15.80
2025-08-08 13D TNON / Tenon Medical, Inc. SiVantage Inc. 986,528 12.50
2025-08-08 13D/A STAA / STAAR Surgical Company Broadwood Partners, L.p. 13,545,391 27.30 1.40
2025-08-06 13D/A OBIO / Orchestra BioMed Holdings, Inc. Rtw Investments, Lp 8,306,063 15.40 0.00
2025-08-05 13D/A XTNT / Xtant Medical Holdings, Inc. Nantahala Capital Partners Limited Partnership 68,394,000 49.10 0.00
2025-08-04 13D/A TLSI / TriSalus Life Sciences, Inc. Frankenius Equity AB 6,989,748 14.00 3.82
2025-08-01 13D/A TLSI / TriSalus Life Sciences, Inc. Wahlstrom Mats 2,987,881 6.00 6.81
2025-08-01 13D/A MSAI / MultiSensor AI Holdings, Inc. Strahan Gary Eugene 3,315,093 9.90 0.00
2025-07-29 13D/A MSAI / MultiSensor AI Holdings, Inc. Strahan Gary Eugene 3,315,093 9.90 -45.80
2025-07-28 13D ZIMV / ZimVie Inc. Gamco Investors, Inc. Et Al 802,753 2.90
2025-07-25 13D/A YBGJ / Yubo International Biotech Limited Flydragon International Ltd 81,943,800 48.10 105.15
2025-07-25 13D/A YBGJ / Yubo International Biotech Limited Chinaone Technology Ltd 25,811,400 15.10 49.97
2025-07-18 13D/A BIO / Bio-Rad Laboratories, Inc. Schwartz Alice N 2,732,073 12.30 -40.03
2025-07-17 13D/A FONR / FONAR Corporation Timothy Raymond Damadian 121,553 1.90 0.00
2025-07-15 13D/A QTRX / Quanterix Corporation Kent Lake PR LLC 2,089,500 4.50 -21.00
2025-07-15 13D MGRM / Monogram Technologies Inc. Zimmer Biomet Holdings, Inc. 9,754,256 27.00
2025-07-11 13D FONR / FONAR Corporation Timothy Raymond Damadian 121,553 1.90
2025-07-02 13D/A VERO / Venus Concept Inc. Madryn Asset Management, LP 10,869,529 85.50 -0.21
2025-07-01 13D/A BWAY / BrainsWay Ltd. - Depositary Receipt (Common Stock) Valor BrainsWay Holdings, LLC 7,743,984 19.00 0.00
2025-06-27 13D/A VERO / Venus Concept Inc. Madryn Asset Management, LP 10,891,951 85.50 6,133.41
2025-06-24 13D/A NAUT / Nautilus Biotechnology, Inc. Perceptive Advisors Llc 12,815,113 10.10 1.75
2025-06-20 13D/A DROR / Dror Ortho-Design, Inc. Congregation Ahavas Tzdokah Vchesed Inc. 61,667,440 6.44
2025-06-17 13D/A BFLY / Butterfly Network, Inc. Glenview Capital Management, Llc 19,634,914 8.70 0.41
2025-06-17 13D ARAY / Accuray Incorporated Tcw Group Inc 11,909,357 10.30
2025-06-16 13D NUWE / Nuwellis, Inc. Erb John L 1,666,767 7.30
2025-06-16 13D VVOS / Vivos Therapeutics, Inc. V-CO Investors LLC 1,342,498 19.90 160.93
2025-06-16 13D/A SNN / Smith & Nephew plc - Depositary Receipt (Common Stock) Cevian Capital II GP LTD 74,469,925 8.50 13.73
2025-06-13 13D/A LUNR / Intuitive Machines, Inc. Ghaffarian Kamal Seyed 39,872,390 26.00 -0.46
2025-06-12 13D/A BLFS / BioLife Solutions, Inc. Casdin Capital, LLC 7,707,165 16.20 -11.77
2025-06-11 13D/A VERO / Venus Concept Inc. Madryn Asset Management, LP 174,735 8.60 0.00
2025-06-11 13D/A VERO / Venus Concept Inc. EW Healthcare Partners, L.P. 485,689 21.60 0.00
2025-05-22 13D TOPP / Toppoint Holdings Inc. John Feliciano III 1,150,000 6.20
2025-05-14 13D ICCM / IceCure Medical Ltd Epoch Partner Investments Ltd 25,846,597 45.70 0.00
2025-05-12 13D/A DCTH / Delcath Systems, Inc. Rosalind Advisors, Inc. 6,674,993 9.90 0.23
2025-05-08 13D/A OFIX / Orthofix Medical Inc. Engine Capital, L.p. 4,251,671 10.90 17.18
2025-05-02 13D/A TLSI / TriSalus Life Sciences, Inc. Frankenius Equity AB 6,732,516 20.50 3.76
2025-05-01 13D/A MSAI / MultiSensor AI Holdings, Inc. 325 Capital Master Fund LP 9,408,636 28.20
2025-05-01 13D/A OBIO / Orchestra BioMed Holdings, Inc. Rtw Investments, Lp 8,306,063 21.70 7.81