Insider holders · CIK 0001453593
Xtant Medical Holdings, Inc. · XTNT
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Stavros G. VizirgianakisDirector | 7,838,845 | — | 7,838,845 | Aug 18, 2026 · 6:09 pm EDT | Form 4 |
| Michael EggenbergDirector | — | 3,316,128 | 3,316,128 | Sep 19, 2018 · 4:22 pm EDT | Form 4 |
| Matthew RizzoDirector | — | 3,316,128 | 3,316,128 | Sep 19, 2018 · 4:36 pm EDT | Form 4 |
| ORBIMED ADVISORS LLCDirector | — | 3,316,128 | 3,316,128 | Feb 23, 2018 · 6:55 pm EST | Form 4 |
| Sean E BrownePresident and CEO | 3,114,669 | — | 3,114,669 | Aug 18, 2026 · 5:47 pm EDT | Form 4 |
| Jonn R. BeesonDirector | 733,136 | 1,015,272 | 1,748,408 | Aug 18, 2026 · 6:21 pm EDT | Form 4 |
| David Louis KirschmanEVP & Chief Scientific Officer | 1,701,063 | — | 1,701,063 | Nov 23, 2015 · 2:13 pm EST | Form 4 |
| Kenneth J. Hemmelgarn, Jr. Revocable Living Trust dated February 9, 1998, as amended10% Owner | — | 1,272,796 | 1,272,796 | Aug 7, 2015 · 8:42 pm EDT | Form 3 |
| Brian J. Hemmelgarn Revocable Living Trust dated February 9, 1998, as amended10% Owner | — | 1,272,796 | 1,272,796 | Aug 7, 2015 · 8:32 pm EDT | Form 3 |
| Brian J. Hemmelgarn10% Owner | — | 1,272,796 | 1,272,796 | Aug 7, 2015 · 8:32 pm EDT | Form 3 |
| Kenneth J. Hemmelgarn Jr.10% Owner | — | 1,272,796 | 1,272,796 | Aug 7, 2015 · 8:42 pm EDT | Form 3 |
| Scott C NeilsCFO and Assistant Secretary | 1,215,226 | — | 1,215,226 | Aug 18, 2026 · 5:54 pm EDT | Form 4 |
| John K BakewellDirector | 1,129,633 | — | 1,129,633 | Aug 18, 2026 · 6:27 pm EDT | Form 4 |
| Mark A. SchallenbergerChief Operating Officer | 1,106,087 | — | 1,106,087 | Aug 18, 2026 · 6:02 pm EDT | Form 4 |
| Samuel D Isaly10% Owner | — | 823,207 | 823,207 | Jan 19, 2018 · 11:57 am EST | Form 3 |
| Abhinav JainDirector | 373,745 | — | 373,745 | Aug 18, 2026 · 6:15 pm EDT | Form 4 |
| Tyler LipschultzDirector | 373,745 | — | 373,745 | Aug 18, 2026 · 6:35 pm EDT | Form 4 |
| Kent L SwansonDirector | 318,641 | 20,000 | 338,641 | Jul 27, 2017 · 11:04 am EDT | Form 4 |
| Daniel S GoldbergerChief Executive Officer | 135,510 | 86,522 | 222,032 | Nov 25, 2016 · 3:15 pm EST | Form 4 |
| Michael A LopachDirector | 95,335 | 14,258 | 109,593 | Jul 27, 2017 · 11:03 am EDT | Form 4 |
| John Arthur DeedrickDirector | 100,434 | — | 100,434 | Jul 27, 2017 · 11:09 am EDT | Form 4 |
| Paul BuckmanDirector | 72,049 | — | 72,049 | Jul 27, 2017 · 11:00 am EDT | Form 4 |
| Eric Bernard TimkoDirector | 51,948 | — | 51,948 | Jul 27, 2017 · 10:58 am EDT | Form 4 |
| Rudy A MazzocchiDirector | 51,948 | — | 51,948 | Jul 27, 2017 · 11:06 am EDT | Form 4 |
| Jon M. Wickwirerelationship not stated | 43,011 | 1,329 | 44,340 | Jul 6, 2016 · 7:07 pm EDT | Form 4 |
| Kevin D BrandtVP & Chief Commercial Officer | 40,000 | — | 40,000 | Aug 16, 2018 · 4:54 pm EDT | Form 4 |
| Jeffrey J PetersDirector | 26,042 | — | 26,042 | Aug 16, 2018 · 5:09 pm EDT | Form 4 |
| Robert McNamaraDirector | 20,833 | — | 20,833 | May 4, 2018 · 2:29 pm EDT | Form 4 |
| Michael MainelliInterim CEO | 20,833 | — | 20,833 | Oct 15, 2018 · 4:08 pm EDT | Form 4 |
| David Goodmanrelationship not stated | 11,764 | — | 11,764 | Jul 6, 2016 · 7:09 pm EDT | Form 4 |
| Ronald G. BerlinVP & Chief Operations Officer | 0 | — | 0 | Jan 16, 2019 · 4:14 pm EST | Form 4 |
| Kathie J. LenzenChief Financial Officer | 0 | — | 0 | Sep 18, 2018 · 4:24 pm EDT | Form 4 |
| Carl O'ConnellChief Executive Officer | 0 | — | 0 | Aug 16, 2018 · 5:01 pm EDT | Form 4 |
| Greg JensenVP, Finance and Interim CFO | 0 | — | 0 | Feb 13, 2019 · 4:39 pm EST | Form 3 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.