TECX

Tectonic Therapeutic, Inc.

Insider trading activity for Tectonic Therapeutic, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$9.1K

net selling

Bought(0 · 0 insiders): $0
Sold(3 · 1 insiders): $9.1K

Past 6 months

-$72.1K

net selling

Bought(0 · 0 insiders): $0
Sold(5 · 2 insiders): $72.1K

Past 12 months

-$456.2K

net selling

Bought(2 · 2 insiders): $182.4K
Sold(10 · 2 insiders): $638.7K

Transaction history

The 72 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 3	Reicin Alise	Chief Executive Officer	AGRANT◆	69,250	—	—	—	Open the original filing on SEC.gov
Sep 3	Ruddy Marcella K.	Chief Medical Officer	AGRANT◆	24,250	—	—	—	Open the original filing on SEC.gov
Sep 3	Lochner Daniel	Chief Financial Officer	AGRANT◆	24,250	—	—	—	Open the original filing on SEC.gov
Sep 3	McNamara Peter	Chief Scientific Officer	AGRANT◆	21,000	—	—	—	Open the original filing on SEC.gov
Sep 3	Schwabish Marc	Chief Business Officer	AGRANT◆	17,750	—	—	—	Open the original filing on SEC.gov
Aug 25	McNamara Peter	Chief Scientific Officer	MEXER◷◆	43	—	—	—	Open the original filing on SEC.gov
Aug 25	McNamara Peter	Chief Scientific Officer	SSELL◷	43	$36.52	$1.6K	<0.1%	Open the original filing on SEC.gov
Aug 25	McNamara Peter	Chief Scientific Officer	MEXER◷	43	$14.71	$633	+<0.1%	Open the original filing on SEC.gov
Aug 12	McNamara Peter	Chief Scientific Officer	MEXER◷◆	43	—	—	—	Open the original filing on SEC.gov
Aug 12	McNamara Peter	Chief Scientific Officer	SSELL◷	43	$35.00	$1.5K	<0.1%	Open the original filing on SEC.gov
Aug 12	McNamara Peter	Chief Scientific Officer	MEXER◷	43	$14.71	$633	+<0.1%	Open the original filing on SEC.gov
Jun 30	McNamara Peter	Chief Scientific Officer	MEXER◷◆	172	—	—	—	Open the original filing on SEC.gov
Jun 30	McNamara Peter	Chief Scientific Officer	SSELL◷	172	$35.00	$6K	-0.3%	Open the original filing on SEC.gov
Jun 30	McNamara Peter	Chief Scientific Officer	MEXER◷	172	$14.71	$2.5K	+0.3%	Open the original filing on SEC.gov
Jun 20	Reicin Alise	Chief Executive Officer	FTAX	924	$30.34	$28K	-0.3%	Open the original filing on SEC.gov
Jun 11	Lochner Daniel	Chief Financial Officer	AGRANT◆	7,500	—	—	—	Open the original filing on SEC.gov
Jun 9	Vitorovic Stefan	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9	Tipirneni Praveen P.	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9	Springer Timothy A	Director, 10% Owner	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9	Donenberg Phillip B.	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 8	Chutter Jessica Caroline	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
May 4	Ruddy Marcella K.	Chief Medical Officer	SSELL◷	1,065	$30.00	$32K	-1.6%	Open the original filing on SEC.gov
Apr 1	Ruddy Marcella K.	Chief Medical Officer	SSELL◷	1,000	$31.05	$31.1K	-1.4%	Open the original filing on SEC.gov
Apr 1	Nader Francois	Director	AGRANT◆	20,400	—	—	—	Open the original filing on SEC.gov
Mar 6	Ruddy Marcella K.	Chief Medical Officer	SSELL◷	10,000	$30.00	$300K	-12.5%	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	MEXER◷◆	215	—	—	—	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	MEXER◷◆	2,500	—	—	—	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	SSELL◷	215	$35.00	$7.5K	-0.4%	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	SSELL◷	6,047	$30.00	$181.4K	-9.8%	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	MEXER◷	215	$14.71	$3.2K	+0.4%	Open the original filing on SEC.gov
Mar 6	McNamara Peter	Chief Scientific Officer	MEXER◷	2,500	$2.38	$6K	+4.3%	Open the original filing on SEC.gov
Mar 4	Schwabish Marc	Chief Business Officer	AGRANT◆	17,750	—	—	—	Open the original filing on SEC.gov
Mar 4	Schwabish Marc	Chief Business Officer	AGRANT	19,500	—	—	+75.5%	Open the original filing on SEC.gov
Mar 4	Ruddy Marcella K.	Chief Medical Officer	AGRANT◆	24,250	—	—	—	Open the original filing on SEC.gov
Mar 4	Ruddy Marcella K.	Chief Medical Officer	AGRANT	26,500	—	—	+49.8%	Open the original filing on SEC.gov
Mar 4	Reicin Alise	Chief Executive Officer	AGRANT◆	69,250	—	—	—	Open the original filing on SEC.gov
Mar 4	Reicin Alise	Chief Executive Officer	AGRANT	76,500	—	—	+32.6%	Open the original filing on SEC.gov
Mar 4	McNamara Peter	Chief Scientific Officer	AGRANT◷◆	21,000	—	—	—	Open the original filing on SEC.gov
Mar 4	McNamara Peter	Chief Scientific Officer	SSELL◷	1,650	$25.00	$41.3K	-2.7%	Open the original filing on SEC.gov
Mar 4	McNamara Peter	Chief Scientific Officer	AGRANT◷	23,000	—	—	+61.4%	Open the original filing on SEC.gov
Mar 4	Lochner Daniel	Chief Financial Officer	AGRANT◆	24,250	—	—	—	Open the original filing on SEC.gov
Mar 4	Lochner Daniel	Chief Financial Officer	AGRANT	26,500	—	—	+82.7%	Open the original filing on SEC.gov
Mar 3	McNamara Peter	Chief Scientific Officer	SSELL◷	1,649	$22.06	$36.4K	-4.2%	Open the original filing on SEC.gov
Feb 11	Reicin Alise	Chief Executive Officer	PBUY↺★	2,500	$21.10	$52.8K	+2.0%	Open the original filing on SEC.gov
Feb 10	Lochner Daniel	Chief Financial Officer	PBUY★	6,000	$21.61	$129.7K	+23.0%	Open the original filing on SEC.gov
Feb 10	Schwabish Marc	Chief Business Officer	MEXER◆	4,500	—	—	—	Open the original filing on SEC.gov
Feb 10	Schwabish Marc	Chief Business Officer	MEXER	4,500	$2.38	$10.7K	+21.1%	Open the original filing on SEC.gov
Feb 4	Schwabish Marc	Chief Business Officer	FTAX	1,619	$23.22	$37.6K	-7.1%	Open the original filing on SEC.gov
Feb 4	Ruddy Marcella K.	Chief Medical Officer	FTAX	2,064	$23.22	$47.9K	-3.7%	Open the original filing on SEC.gov
Feb 4	Reicin Alise	Chief Executive Officer	FTAX	4,104	$23.22	$95.3K	-1.7%	Open the original filing on SEC.gov
Feb 4	McNamara Peter	Chief Scientific Officer	FTAX	1,748	$23.22	$40.6K	-4.3%	Open the original filing on SEC.gov
Feb 4	Lochner Daniel	Chief Financial Officer	FTAX	2,077	$23.22	$48.2K	-7.4%	Open the original filing on SEC.gov
Dec 31, 2025	Reicin Alise	Chief Executive Officer	MEXER◆	10,966	—	—	—	Open the original filing on SEC.gov
Dec 31, 2025	Reicin Alise	Chief Executive Officer	MEXER	10,966	$2.38	$26.1K	+4.8%	Open the original filing on SEC.gov
Dec 22, 2025	McNamara Peter	Chief Scientific Officer	MEXER◆	7,000	—	—	—	Open the original filing on SEC.gov
Dec 22, 2025	McNamara Peter	Chief Scientific Officer	MEXER	7,000	$2.98	$20.9K	+20.7%	Open the original filing on SEC.gov
Sep 25, 2025	Schwabish Marc	Chief Business Officer	AGRANT◆	7,650	—	—	—	Open the original filing on SEC.gov
Sep 25, 2025	Schwabish Marc	Chief Business Officer	AGRANT	4,210	—	—	+22.5%	Open the original filing on SEC.gov
Sep 25, 2025	Ruddy Marcella K.	Chief Medical Officer	AGRANT◆	9,750	—	—	—	Open the original filing on SEC.gov
Sep 25, 2025	Ruddy Marcella K.	Chief Medical Officer	AGRANT	5,370	—	—	+10.8%	Open the original filing on SEC.gov
Sep 25, 2025	Reicin Alise	Chief Executive Officer	AGRANT◆	26,710	—	—	—	Open the original filing on SEC.gov
Sep 25, 2025	Reicin Alise	Chief Executive Officer	AGRANT	14,700	—	—	+6.9%	Open the original filing on SEC.gov
Sep 25, 2025	McNamara Peter	Chief Scientific Officer	AGRANT◆	8,260	—	—	—	Open the original filing on SEC.gov
Sep 25, 2025	McNamara Peter	Chief Scientific Officer	AGRANT	4,550	—	—	+15.5%	Open the original filing on SEC.gov
Sep 25, 2025	Lochner Daniel	Chief Financial Officer	AGRANT◆	9,860	—	—	—	Open the original filing on SEC.gov
Sep 25, 2025	Lochner Daniel	Chief Financial Officer	AGRANT	5,430	—	—	+23.9%	Open the original filing on SEC.gov
Jun 20, 2025	Reicin Alise	Chief Executive Officer	FTAX	859	$19.81	$17K	-0.4%	Open the original filing on SEC.gov
Jun 9, 2025	Vitorovic Stefan	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Tipirneni Praveen P.	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Springer Timothy A	Director, 10% Owner	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	McGuire Terrance	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov
Jun 9, 2025	Donenberg Phillip B.	Director	AGRANT◆	10,200	—	—	—	Open the original filing on SEC.gov

AGRANT◆—

Reicin Alise · Chief Executive…Sep 3

69,250 sh

AGRANT◆—

Ruddy Marcella K. · Chief Medical…Sep 3

24,250 sh

AGRANT◆—

Lochner Daniel · Chief Financial…Sep 3

24,250 sh

AGRANT◆—

McNamara Peter · Chief Scientific…Sep 3

21,000 sh

AGRANT◆—

Schwabish Marc · Chief Business…Sep 3

17,750 sh

MEXER◷◆—

McNamara Peter · Chief Scientific…Aug 25

43 sh

SSELL◷$1.6K

McNamara Peter · Chief Scientific…Aug 25

43 sh @ $36.52 · <0.1% own

MEXER◷$633

McNamara Peter · Chief Scientific…Aug 25

43 sh @ $14.71 · +<0.1% own

MEXER◷◆—

McNamara Peter · Chief Scientific…Aug 12

43 sh

SSELL◷$1.5K

McNamara Peter · Chief Scientific…Aug 12

43 sh @ $35.00 · <0.1% own

MEXER◷$633

McNamara Peter · Chief Scientific…Aug 12

43 sh @ $14.71 · +<0.1% own

MEXER◷◆—

McNamara Peter · Chief Scientific…Jun 30

172 sh

SSELL◷$6K

McNamara Peter · Chief Scientific…Jun 30

172 sh @ $35.00 · -0.3% own

MEXER◷$2.5K

McNamara Peter · Chief Scientific…Jun 30

172 sh @ $14.71 · +0.3% own

FTAX$28K

Reicin Alise · Chief Executive…Jun 20

924 sh @ $30.34 · -0.3% own

AGRANT◆—

Lochner Daniel · Chief Financial…Jun 11

7,500 sh

AGRANT◆—

Vitorovic Stefan · DirectorJun 9

10,200 sh

AGRANT◆—

Tipirneni Praveen P. · DirectorJun 9

10,200 sh

AGRANT◆—

Springer Timothy A · Director, 10%…Jun 9

10,200 sh

AGRANT◆—

Donenberg Phillip B. · DirectorJun 9

10,200 sh

AGRANT◆—

Chutter Jessica Caroline · DirectorJun 8

20,400 sh

SSELL◷$32K

Ruddy Marcella K. · Chief Medical…May 4

1,065 sh @ $30.00 · -1.6% own

SSELL◷$31.1K

Ruddy Marcella K. · Chief Medical…Apr 1

1,000 sh @ $31.05 · -1.4% own

AGRANT◆—

Nader Francois · DirectorApr 1

20,400 sh

SSELL◷$300K

Ruddy Marcella K. · Chief Medical…Mar 6

10,000 sh @ $30.00 · -12.5% own

MEXER◷◆—

McNamara Peter · Chief Scientific…Mar 6

215 sh

MEXER◷◆—

McNamara Peter · Chief Scientific…Mar 6

2,500 sh

SSELL◷$7.5K

McNamara Peter · Chief Scientific…Mar 6

215 sh @ $35.00 · -0.4% own

SSELL◷$181.4K

McNamara Peter · Chief Scientific…Mar 6

6,047 sh @ $30.00 · -9.8% own

MEXER◷$3.2K

McNamara Peter · Chief Scientific…Mar 6

215 sh @ $14.71 · +0.4% own

MEXER◷$6K

McNamara Peter · Chief Scientific…Mar 6

2,500 sh @ $2.38 · +4.3% own

AGRANT◆—

Schwabish Marc · Chief Business…Mar 4

17,750 sh

AGRANT—

Schwabish Marc · Chief Business…Mar 4

19,500 sh · +75.5% own

AGRANT◆—

Ruddy Marcella K. · Chief Medical…Mar 4

24,250 sh

AGRANT—

Ruddy Marcella K. · Chief Medical…Mar 4

26,500 sh · +49.8% own

AGRANT◆—

Reicin Alise · Chief Executive…Mar 4

69,250 sh

AGRANT—

Reicin Alise · Chief Executive…Mar 4

76,500 sh · +32.6% own

AGRANT◷◆—

McNamara Peter · Chief Scientific…Mar 4

21,000 sh

SSELL◷$41.3K

McNamara Peter · Chief Scientific…Mar 4

1,650 sh @ $25.00 · -2.7% own

AGRANT◷—

McNamara Peter · Chief Scientific…Mar 4

23,000 sh · +61.4% own

AGRANT◆—

Lochner Daniel · Chief Financial…Mar 4

24,250 sh

AGRANT—

Lochner Daniel · Chief Financial…Mar 4

26,500 sh · +82.7% own

SSELL◷$36.4K

McNamara Peter · Chief Scientific…Mar 3

1,649 sh @ $22.06 · -4.2% own

PBUY↺★$52.8K

Reicin Alise · Chief Executive…Feb 11

2,500 sh @ $21.10 · +2.0% own

PBUY★$129.7K

Lochner Daniel · Chief Financial…Feb 10

6,000 sh @ $21.61 · +23.0% own

MEXER◆—

Schwabish Marc · Chief Business…Feb 10

4,500 sh

MEXER$10.7K

Schwabish Marc · Chief Business…Feb 10

4,500 sh @ $2.38 · +21.1% own

FTAX$37.6K

Schwabish Marc · Chief Business…Feb 4

1,619 sh @ $23.22 · -7.1% own

FTAX$47.9K

Ruddy Marcella K. · Chief Medical…Feb 4

2,064 sh @ $23.22 · -3.7% own

FTAX$95.3K

Reicin Alise · Chief Executive…Feb 4

4,104 sh @ $23.22 · -1.7% own

FTAX$40.6K

McNamara Peter · Chief Scientific…Feb 4

1,748 sh @ $23.22 · -4.3% own

FTAX$48.2K

Lochner Daniel · Chief Financial…Feb 4

2,077 sh @ $23.22 · -7.4% own

MEXER◆—

Reicin Alise · Chief Executive…Dec 31, 2025

10,966 sh

MEXER$26.1K

Reicin Alise · Chief Executive…Dec 31, 2025

10,966 sh @ $2.38 · +4.8% own

MEXER◆—

McNamara Peter · Chief Scientific…Dec 22, 2025

7,000 sh

MEXER$20.9K

McNamara Peter · Chief Scientific…Dec 22, 2025

7,000 sh @ $2.98 · +20.7% own

AGRANT◆—

Schwabish Marc · Chief Business…Sep 25, 2025

7,650 sh

AGRANT—

Schwabish Marc · Chief Business…Sep 25, 2025

4,210 sh · +22.5% own

AGRANT◆—

Ruddy Marcella K. · Chief Medical…Sep 25, 2025

9,750 sh

AGRANT—

Ruddy Marcella K. · Chief Medical…Sep 25, 2025

5,370 sh · +10.8% own

AGRANT◆—

Reicin Alise · Chief Executive…Sep 25, 2025

26,710 sh

AGRANT—

Reicin Alise · Chief Executive…Sep 25, 2025

14,700 sh · +6.9% own

AGRANT◆—

McNamara Peter · Chief Scientific…Sep 25, 2025

8,260 sh

AGRANT—

McNamara Peter · Chief Scientific…Sep 25, 2025

4,550 sh · +15.5% own

AGRANT◆—

Lochner Daniel · Chief Financial…Sep 25, 2025

9,860 sh

AGRANT—

Lochner Daniel · Chief Financial…Sep 25, 2025

5,430 sh · +23.9% own

FTAX$17K

Reicin Alise · Chief Executive…Jun 20, 2025

859 sh @ $19.81 · -0.4% own

AGRANT◆—

Vitorovic Stefan · DirectorJun 9, 2025

10,200 sh

AGRANT◆—

Tipirneni Praveen P. · DirectorJun 9, 2025

10,200 sh

AGRANT◆—

Springer Timothy A · Director, 10%…Jun 9, 2025

10,200 sh

AGRANT◆—

McGuire Terrance · DirectorJun 9, 2025

10,200 sh

AGRANT◆—

Donenberg Phillip B. · DirectorJun 9, 2025

10,200 sh

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

6 of 45 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 1 business day late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Feb 4	Feb 9	McNamara PeterChief Scientific Officer	1day	$40.6K	Filing ↗
Feb 4	Feb 9	Reicin AliseChief Executive Officer	1day	$95.3K	Filing ↗
Feb 4	Feb 9	Ruddy Marcella K.Chief Medical Officer	1day	$47.9K	Filing ↗
Feb 4	Feb 9	Lochner DanielChief Financial Officer	1day	$48.2K	Filing ↗
Feb 4	Feb 9	Schwabish MarcChief Business Officer	1day	$37.6K	Filing ↗

McNamara PeterChief Scientific Officer

1day