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COLUMN GROUP III-A, LP

CIK 1668085 · last filed 2026-01-15

COLUMN GROUP III-A, LP is a corporate insider who has filed 17 SEC Form 4 insider transactions across 4 companies since 2019. The most recent filing, for TNYA, was dated Feb 25, 2026. Across all open-market trades the lifetime net is +$199.8M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $1.68B across reported positions. The firm reports its address in San Francisco, CA. 77 SEC filings were submitted jointly with COLUMN GROUP III, LP.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$1.68B

Companies

4

Total Filings

17

Lifetime Open-Market Net

$199.83M

Filer Profile

Reported Address
1700 OWENS STREET
SUITE 500
SAN FRANCISCO, CA 94158
Phone
(415) 865-2050
State of Incorporation
DE
Related Filers
COLUMN GROUP III, LP — 77 joint filings, latest 2026-02-26
COLUMN GROUP III GP, LP — 55 joint filings, latest 2026-02-26
COLUMN GROUP L P — 48 joint filings, latest 2023-11-17
Column Group Opportunity III GP, LP — 28 joint filings, latest 2026-02-26
Column Group Opportunity III, LP — 28 joint filings, latest 2026-02-26
COLUMN GROUP GP, LP — 26 joint filings, latest 2024-04-08
Column Group IV GP, LP — 23 joint filings, latest 2024-04-08
Column Group IV, LP — 23 joint filings, latest 2024-04-08
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
SRZNW 10%+ Owner 996,502 $0.00 $1.5K $2.50M 1 2026-01-15
NGM BIOPHARMACEUTICALS INC (NGM) Delisted 10%+ Owner 11,203,333 $1.54 $17.25M $47.33M 10 2023-01-17
TNYA 10%+ Owner 4,414,720 $0.68 $3.02M $150.00M 1 2022-11-23
RVMD 10%+ Owner 7,977,384 $210.02 $1.68B $0 1 2020-02-18

Recent Filings

17 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-02-25 TNYA Notice (144) −1,060,727 -$596.6K EDGAR
2026-02-20 TNYA Notice (144) −1,591,090 -$985.4K EDGAR
2026-02-11 TNYA Notice (144) −742,663 -$504.8K EDGAR
2026-02-10 TNYA Notice (144) −1,591,090 -$1.26M EDGAR
2026-01-15 SRZNW Buy (P) +125,951 $2.50M EDGAR
2023-01-17 NGM BIOPHARMACEUTICALS INC (NGM) Delisted Buy (P) +53,780 $266.0K EDGAR
2022-11-23 TNYA Buy (P) +57,692,304 $150.00M EDGAR
2022-06-02 NGM BIOPHARMACEUTICALS INC (NGM) Delisted Buy (P) +1,230,448 $16.56M EDGAR
2022-05-23 NGM BIOPHARMACEUTICALS INC (NGM) Delisted Buy (P) +317,600 $4.24M EDGAR
2020-08-03 NGM BIOPHARMACEUTICALS INC (NGM) Delisted Buy (P) +4,392 $79.0K EDGAR
Showing 1–10 of 17
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.