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Insider · CIK 0001296771

Freund John Gordon

CIK 0001296771 Name as filed on the most recent filing

Filed as Freund John Gordon (55)

105 transaction lines · from 55 filings · filed 2005-09-07 to 2026-05-20 The span is the filing dates this catalog holds, not the entity's full filing history. Absence here is not evidence of absence at the SEC.

How this page attributes a trade

A line appears here when the filing that carries it names this CIK as a reporting owner, not only when the parser picked this CIK as the line's primary owner. That is why a joint filing appears on both owners' pages rather than vanishing from the second one. The catalog never merges two CIKs into one person and never splits one CIK into two: identity here is the SEC's own identifier and nothing else.

01

Issuers this insider has filed against

Ordered by last-seen filing date, newest first. Roles are as filed on the Form 4 and are not normalised.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

No issuer is recorded

The catalog holds no filing linking this CIK to an issuer.

02

Transactions

Every stored Form 4 line naming this reporting owner, newest transaction date first. Each row links to the filing it came from.

95 transactions · Newest transaction date first, id breaking the tie.

Fault

This container could not be filled from the store. It is showing nothing because a read failed, not because no insider filed: those are different facts and this catalog will not let one stand in for the other. The last ingest the store recorded was 2026-08-21 05:23 UTC.

Transactions filed by this insider
Direction Date Issuer Code Shares Price Value USD Filing
2026-05-18 Collegium Pharmaceutical, Inc
COLL 		S, Open-market sale 20 disposed 34.05 681.00 Form 4, filing 0001296771-26-000004
2026-05-15 Collegium Pharmaceutical, Inc
COLL 		S, Open-market sale 4,127 disposed 34.54 142,546.58 Form 4, filing 0001296771-26-000002
2025-08-08 Collegium Pharmaceutical, Inc
COLL 		S, Open-market sale 11,659 disposed 34.36 400,640.55 Form 4, filing 0001062993-25-014202
2025-08-08 Si-Bone, Inc.
SIBN 		S, Open-market sale 12,132 disposed 15.99 193,997.96 Form 4, filing 0001562180-25-005706
2025-06-09 Collegium Pharmaceutical, Inc
COLL 		S, Open-market sale 6,601 disposed 30.62 202,149.02 Form 4, filing 0001062993-25-011425
2023-08-09 Si-Bone, Inc.
SIBN 		S, Open-market sale 30,000 disposed 20.54 616,197.00 Form 4, filing 0001562180-23-006298
2021-06-16 Si-Bone, Inc.
SIBN 		S, Open-market sale 12,591 disposed 31.41 395,426.65 Form 4, filing 0001562180-21-004319
2021-06-15 Si-Bone, Inc.
SIBN 		S, Open-market sale 21,511 disposed 31.11 669,136.22 Form 4, filing 0001562180-21-004319
2021-06-14 Si-Bone, Inc.
SIBN 		S, Open-market sale 17,990 disposed 31.28 562,737.99 Form 4, filing 0001562180-21-004319
2021-05-28 Si-Bone, Inc.
SIBN 		S, Open-market sale 45,220 disposed 30.06 1,359,444.34 Form 4, filing 0001562180-21-003880
2021-05-27 Si-Bone, Inc.
SIBN 		S, Open-market sale 26,367 disposed 30.93 815,523.40 Form 4, filing 0001562180-21-003880
2021-05-26 Si-Bone, Inc.
SIBN 		S, Open-market sale 17,138 disposed 31.85 545,833.30 Form 4, filing 0001562180-21-003755
2021-05-25 Si-Bone, Inc.
SIBN 		S, Open-market sale 1,696 disposed 32.55 55,196.66 Form 4, filing 0001562180-21-003755
2021-05-24 Si-Bone, Inc.
SIBN 		S, Open-market sale 50,827 disposed 32.54 1,653,956.32 Form 4, filing 0001562180-21-003755
2021-05-24 Si-Bone, Inc.
SIBN 		S, Open-market sale 200 disposed 32.76 6,552.00 Form 4, filing 0001562180-21-003755
2021-03-17 Si-Bone, Inc.
SIBN 		S, Open-market sale 600,000 disposed 30.25 18,150,000.00 Form 4, filing 0001562180-21-002352
2021-03-17 Si-Bone, Inc.
SIBN 		S, Open-market sale 66,200 disposed 31.63 2,093,687.54 Form 4, filing 0001562180-21-002352
2021-03-16 Si-Bone, Inc.
SIBN 		S, Open-market sale 55,053 disposed 30.33 1,669,884.11 Form 4, filing 0001562180-21-002352
2021-03-15 Si-Bone, Inc.
SIBN 		S, Open-market sale 80,887 disposed 30.90 2,499,586.25 Form 4, filing 0001562180-21-002250
2021-03-12 Si-Bone, Inc.
SIBN 		S, Open-market sale 91,072 disposed 31.39 2,858,859.37 Form 4, filing 0001562180-21-002250
2021-03-11 Si-Bone, Inc.
SIBN 		S, Open-market sale 63,928 disposed 31.05 1,984,740.65 Form 4, filing 0001562180-21-002250
2020-12-03 Si-Bone, Inc.
SIBN 		S, Open-market sale 47,886 disposed 23.39 1,120,197.20 Form 4, filing 0001562180-20-007090
2020-12-02 Si-Bone, Inc.
SIBN 		S, Open-market sale 100,000 disposed 23.28 2,328,480.00 Form 4, filing 0001562180-20-007090
2020-10-19 Si-Bone, Inc.
SIBN 		S, Open-market sale 190,053 disposed 22.00 4,181,166.00 Form 4, filing 0001562180-20-006399
2020-09-18 Sutro Biopharma, Inc.
STRO 		S, Open-market sale 400,000 disposed 12.00 4,800,000.00 Form 4, filing 0001209191-20-051490
2020-09-11 Sutro Biopharma, Inc.
STRO 		S, Open-market sale 500,000 disposed 10.00 5,000,000.00 Form 4, filing 0001209191-20-050511
2020-08-19 Sutro Biopharma, Inc.
STRO 		S, Open-market sale 500,000 disposed 8.72 4,360,000.00 Form 4, filing 0001209191-20-047981
2020-01-27 Si-Bone, Inc.
SIBN 		S, Open-market sale 1,000,000 disposed 21.50 21,500,000.00 Form 4, filing 0001562180-20-005448
2019-12-10 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 14,507 disposed 2.19 31,770.33 Form 4, filing 0001209191-19-060298
2019-12-10 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 524 disposed 2.19 1,147.56 Form 4, filing 0001209191-19-060298
2019-08-26 Si-Bone, Inc.
SIBN 		S, Open-market sale 152,424 disposed 18.40 2,805,180.81 Form 4, filing 0001562180-19-004500
2019-08-23 Si-Bone, Inc.
SIBN 		S, Open-market sale 180 disposed 20.03 3,605.40 Form 4, filing 0001562180-19-004460
2019-08-22 Si-Bone, Inc.
SIBN 		S, Open-market sale 2,185 disposed 20.05 43,807.06 Form 4, filing 0001562180-19-004460
2019-08-21 Si-Bone, Inc.
SIBN 		S, Open-market sale 27,067 disposed 20.14 545,040.06 Form 4, filing 0001562180-19-004460
2019-08-21 Si-Bone, Inc.
SIBN 		S, Open-market sale 18,144 disposed 20.17 366,017.10 Form 4, filing 0001562180-19-004460
2019-08-12 Si-Bone, Inc.
SIBN 		S, Open-market sale 400,000 disposed 18.25 7,300,000.00 Form 4, filing 0001562180-19-004288
2018-10-19 Si-Bone, Inc.
SIBN 		P, Open-market purchase 325,000 acquired 15.00 4,875,000.00 Form 4, filing 0001209191-18-055697
2018-10-19 Si-Bone, Inc.
SIBN 		P, Open-market purchase 325,000 acquired 15.00 4,875,000.00 Form 4, filing 0001209191-18-055698
2015-11-11 Xenoport Inc
XNPT 		S, Open-market sale 909 disposed 6.68 6,074.12 Form 4, filing 0001209191-15-080108
2015-05-12 Collegium Pharmaceutical, Inc
COLL 		P, Open-market purchase 150,000 acquired 12.00 1,800,000.00 Form 4, filing 0001192482-15-000195
2015-02-20 Dicerna Pharmaceuticals Inc
DRNA 		S, Open-market sale 37,532 disposed 26.02 976,582.64 Form 4, filing 0001209191-15-018139
2014-10-27 Proteon Therapeutics Inc
PRTO 		S, Open-market sale 56,038 disposed 10.00 560,380.00 Form 4, filing 0001104659-14-074948
2014-10-27 Proteon Therapeutics Inc
PRTO 		P, Open-market purchase 200,000 acquired 10.00 2,000,000.00 Form 4, filing 0001104659-14-074948
2014-10-27 Proteon Therapeutics Inc
PRTO 		S, Open-market sale 56,038 disposed 10.00 560,380.00 Form 4, filing 0001104659-14-074955
2014-10-27 Proteon Therapeutics Inc
PRTO 		P, Open-market purchase 200,000 acquired 10.00 2,000,000.00 Form 4, filing 0001104659-14-074955
2014-10-02 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 77,862 disposed 21.02 1,636,799.39 Form 4, filing 0001209191-14-061793
2014-10-02 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 27,726 disposed 20.72 574,346.86 Form 4, filing 0001209191-14-061793
2014-10-01 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 127,746 disposed 20.89 2,668,843.88 Form 4, filing 0001209191-14-061793
2014-10-01 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 14,400 disposed 20.41 293,886.72 Form 4, filing 0001209191-14-061793
2014-09-30 Tetraphase Pharmaceuticals Inc
TTPH 		S, Open-market sale 56,618 disposed 20.17 1,141,843.52 Form 4, filing 0001209191-14-060522

This column is intentionally blank

No transaction line is stored for this reporting owner, though the catalog holds filings naming them. That happens when the filings report only holdings or only positions the store does not carry, and when a parse failed; each filing page states its own parse status.

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Codes on this page
S, Open-market sale
Open-market sale
P, Open-market purchase
Open-market purchase

Every value is as reported on the Form 4. A price the filing did not report is marked Not reported and no value is computed from it. Codes outside the open market, drawn in grey behind a dashed rule, are compensation and administrative machinery rather than a decision to trade at the prevailing price.

What this insider's stored lines contain

Exact counts over every stored line for this entity. This is a statement of composition, not a filter: the only filter this page offers is the open-market one above, because that is the only one an index serves today.

  • Open-market purchase 41
  • Open-market sale 54
  • Option exercise 0
  • Grant or award 0
  • Tax withholding 0
  • Disposition to the issuer 0
  • In-the-money option exercise 0

How to cite this page

ebomi catalog. Freund John Gordon, insider transactions. Retrieved 2026-08-21 from https://ebomi.com/insider/0001296771

Balogh, A. Insider trading. Scientific Data 10, 237 (2023) doi:10.1038/s41597-023-02147-6

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